SensAlarm Plus manual 820-0301-0
Universal Gas Monitoring System
User Manual
Document No. 360-0126-01
(Revision D)
Sensidyne, LP
1000 112TH Circle N, Suite 100
St. Petersburg, Florida 33716 USA
800-451-9444 • +1 727-530-3602 • +1 727-539-0550 [fax]
web: www.sensidyne.com • e-mail: [email protected]
SensAlarm Plus – Universal Gas Monitoring System
User Manual
How to Use This Manual
This manual is a basic guide for using the SensAlarm Plus Universal Gas Monitoring System. It contains
information on SensAlarm Plus components, sensor types, and the Normal Operation Display. It also shows
how to mount and wire the Monitor, initial setup, zero, and span calibration. In addition, it covers commonly
used operations regarding alarms, relays, and Test-On-Demand.
Important notes, cautions, and warnings are set off from the other text as follows:
NOTE
This is an important note
MENU MAP and MENU FUNCTIONS
The entire menu structure is outlined in Section 5.2, Menu Structure, with descriptions of each function in
Section 3, Operating Functions and Section 4, Alarms and Relays.
The SensAlarm Plus Gas Monitor is menu driven, so is important to become familiar with how the four magnetic
switch controls are used to navigate through the menus, select specific menu items, and change the many
different parameters available to the user. The Basic Menu Controls Guide is below.
Basic Menu Controls Guide
Selecting OK from the Normal Operation Display enters the SensAlarm Plus menu system. Within the menu
system OK is to 1) to select an item from a list of menu items, 2) to confirm that an action has occurred (e.g.
changing an alarm from “Non-Latching” to “Latching”), or 3) to save a new value that has been entered (e.g., a
netion for configded. It is similar in use to an ESC key on a computer keyboard.
The ▲ control arrow is used to move UP a list of menu items.
The ▼ control arrow is used to move DOWN a list of menu items.
The ▲ and ▼ control arrows also are used to increase/decrease numeric values of certain menu items (e.g.
alarm Setpoint, cal gas concentration, etc.).
PLEASE NOTE
This manual contains illustrations of those display screen menu options generally used in the normal course of
operation of the SensAlarm Plus Monitor. The Monitor may also display a variety of additional warning or
cautionary screens. These additional display screens are instructive and self-explanatory in nature. The user
should read each display screen and perform the recommended actions as required.
Important
Factory Default Settings
Each Monitor is shipped from the factory with default settings. These include default settings for alarms,
warnings and relays. The default settings can be found in Section 12 – Appendix G: Configuration
Reference (page 113). Please note that boxes filled with an “X” indicate a default setting for that particular
alarm, warning, or relay. Additional blank copies of the Configuration Reference form can be found in Section
12. These blank forms are intended for use by the user to document user-defined changes from the factory
default settings.
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Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Table of Contents
How to Use This Manual.................................................................................................................................2
Basic Menu Controls Guide ............................................................................................................................2
Packing List and Notices.................................................................................................................................7
WARNINGS ....................................................................................................................................................8
1
INTRODUCTION .........................................................................................................10
1.1
Product Versions .................................................................................................................................10
1.2 Standard Features...............................................................................................................................11
1.2.1
Universal Sensor Capability........................................................................................................11
1.2.2
Large Displays for Ease of Operation.........................................................................................11
1.2.3
Non Intrusive Operation..............................................................................................................11
1.2.4
Transportable Calibration ...........................................................................................................11
1.2.5
Predictive Failure ........................................................................................................................11
1.2.6
AC & External DC Power Capability ...........................................................................................11
1.3 Factory Installed Options.....................................................................................................................12
1.3.1
Test-On-Demand™ Gas Generator............................................................................................12
1.3.2
Remote Sensor Operation ..........................................................................................................12
1.3.3
Communication Options .............................................................................................................12
1.3.4
Dual Strobes ...............................................................................................................................12
1.3.5
Internal 30 Minute Battery Backup..............................................................................................12
1.4 SensAlarm Plus Components .............................................................................................................13
1.4.1
Sensor Interface Assembly.........................................................................................................13
1.4.2
SensAlert Plus Sensor................................................................................................................13
1.4.3
Test-on-Demand™ .....................................................................................................................13
1.4.4
Sensor Holder .............................................................................................................................13
1.4.5
Rainshield ...................................................................................................................................13
1.4.6
Calibration Plug Assembly..........................................................................................................13
1.4.7
Liquid Crystal Display and Magnetic Controls ............................................................................15
1.4.8
Sensor Types..............................................................................................................................16
1.4.9
SensAlarm Plus Housing ............................................................................................................17
1.4.10 SensAlarm Plus Power Available LED (3)..................................................................................17
1.4.11 Red Strobe..................................................................................................................................17
1.4.12 Amber Strobe (option) ................................................................................................................18
1.4.13 Sounder ......................................................................................................................................18
A 95dB Piezo horn is located on the bottom right side of the enclosure. The sounder activates during
alarm and warning conditions. The sounder can be silenced with a red pushbutton switch. The alarm reset
conforms to ISA alarm sequence 3A.........................................................................................................18
1.4.14 Reset Button ...............................................................................................................................18
1.5 Electronics Modules ............................................................................................................................19
1.5.1
Display PCA................................................................................................................................20
1.5.2
LED display (4-digit) PCA ...........................................................................................................20
1.5.3
Power Assembly TB1, TB2.........................................................................................................20
1.5.4
Barrier PCA.................................................................................................................................21
1.5.5
AC Power supply ........................................................................................................................21
1.5.6
Main PCA....................................................................................................................................21
2
INSTALLATION...........................................................................................................22
2.1
Location ...............................................................................................................................................22
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SensAlarm Plus – Universal Gas Monitoring System
2.2
User Manual
Fire or other Code Compliance Issues and annunciation requirements............................................. 22
2.3 Monitor Installation .............................................................................................................................. 22
2.3.1
AC Power.................................................................................................................................... 24
2.3.2
DC Power ................................................................................................................................... 25
2.3.3
Wiring Procedure (4-20 mA Output)........................................................................................... 25
2.3.4
Wiring Procedure (Relay Outputs) ............................................................................................. 25
2.4
3
Start Up ............................................................................................................................................... 26
OPERATING FUNCTIONS.......................................................................................... 27
3.1 Calibration ........................................................................................................................................... 27
3.1.1
Zeroing the Monitor .................................................................................................................... 28
3.1.2
Span Calibration ......................................................................................................................... 29
3.2 Sensor Adjustment .............................................................................................................................. 33
3.2.1
Select Calibration Gas................................................................................................................ 34
3.2.2
Selecting a K-Factor ................................................................................................................... 35
3.2.3
Selecting a Custom K-Factor...................................................................................................... 37
3.3 ToD Mode Adjustment ........................................................................................................................ 38
3.3.1
Auto Mode, Enable/Disable ........................................................................................................ 39
3.3.2
ToD Auto Mode, Test Date/Time................................................................................................ 40
3.3.3
ToD Auto Mode, Days Between Tests ....................................................................................... 40
3.3.4
ToD Mode Adjustment, Cell Intensity ......................................................................................... 41
3.3.5
ToD Mode Adjustment, Output Indicators .................................................................................. 42
4
ALARMS, FAULTS AND RELAYS ............................................................................. 43
4.1 Alarms ................................................................................................................................................. 44
4.1.1
Add a Relay ................................................................................................................................ 45
4.1.2
Delete a Relay ............................................................................................................................ 46
4.1.3
Enable or Disable an Alarm........................................................................................................ 46
4.1.4
Ascending or Descending alarm threshold................................................................................. 47
4.1.5
Alarm Setpoint ............................................................................................................................ 47
4.1.6
Release Offset ............................................................................................................................ 48
4.1.7
TWA Average Time Adjustment ................................................................................................. 48
4.2 Fault Functions.................................................................................................................................... 49
4.2.1
Add a Relay ................................................................................................................................ 50
4.2.2
Delete a Relay ............................................................................................................................ 50
4.2.3
Enable or Disable a Fault ........................................................................................................... 51
4.2.4
Adjust Fault Current.................................................................................................................... 51
4.2.5
Adjust Fault Current Delay ......................................................................................................... 51
4.3 Warn Current – Relay 5 ..................................................................................................................... 52
4.3.1
Warn Current-Relay 5, Latching/Non-Latching .......................................................................... 52
4.3.2
Warn Current – Relay 5, Enable or Disable ............................................................................... 53
4.3.3
Low Current Time Adjust ............................................................................................................ 53
4.4 Relay 1-Fail, Relay 2, Relay 3, Relay 4 .............................................................................................. 54
4.4.1
Latching or Non-Latching ........................................................................................................... 54
4.4.2
Norm Energized/ Norm De-Energized........................................................................................ 54
4.4.3
Time Delay.................................................................................................................................. 55
4.5 Horn – Relay 6 ................................................................................................................................... 56
4.5.1
Latching or Non-Latching ........................................................................................................... 56
4.5.2
Timeout (Enabled/Disabled) ....................................................................................................... 56
4.5.3
Time Delay.................................................................................................................................. 57
4.5.4
Timeout Delay............................................................................................................................. 57
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SensAlarm Plus – Universal Gas Monitoring System
4.6 Red Strobe - Relay7, Amber Strobe-Relay8 .......................................................................................58
4.6.1
Latching or Non-Latching............................................................................................................58
4.6.2
Norm Energized/ Norm De-Energized ........................................................................................59
4.6.3
Time Delay..................................................................................................................................59
5
MENU STRUCTURE & MAP.......................................................................................60
Basic Guide to Using the Menu System .......................................................................................................60
SENSALARM PLUS Menu Structure ................................................................................................................60
5.1
Main Menu Screen ..............................................................................................................................60
5.2 Main Menu (screens)...........................................................................................................................87
As shown on the example display to the right, the top level (main) menu allows the selection of several
submenus, documented below. Selecting OK brings up the submenus...................................................87
5.2.1
Calibration Mode........................................................................................................................87
5.2.1.1
5.2.1.2
5.2.1.3
5.2.2
5.2.3
Zero Monitor ......................................................................................................................................... 87
Calibrate ............................................................................................................................................... 87
Set Cal Gas Concentration................................................................................................................... 88
Maintenance Mode .....................................................................................................................88
Data Review................................................................................................................................88
5.2.3.1
5.2.3.2
5.2.3.3
5.2.3.4
5.2.3.5
5.2.3.6
5.2.3.7
5.2.3.8
5.2.3.9
5.2.3.10
5.2.4
5.2.5
Test-On-Demand (Main Menu)...................................................................................................92
System Configuration .................................................................................................................92
5.2.5.1
5.2.5.2
5.2.5.3
5.2.5.4
5.2.5.5
5.2.5.6
5.2.5.7
5.2.5.8
5.2.5.9
5.2.5.10
6
7
Calibration Info ..................................................................................................................................... 89
Sensor Status....................................................................................................................................... 89
Sensor Data ......................................................................................................................................... 89
Active Alarms/Faults............................................................................................................................. 89
Fault Currents....................................................................................................................................... 90
Fault Current Delay .............................................................................................................................. 90
Rly Alm Fault Config............................................................................................................................. 90
ToD Review.......................................................................................................................................... 91
Communication Review........................................................................................................................ 91
Firmware Review.................................................................................................................................. 91
Self Test 92
Alarm Settings ...................................................................................................................................... 93
4/20 mA Adjustment ............................................................................................................................. 98
Adjust Date/Time.................................................................................................................................. 99
Communication Setup .......................................................................................................................... 99
ToD Mode Adjustment........................................................................................................................ 100
Sensor Adjustment ............................................................................................................................. 100
Set Password ..................................................................................................................................... 101
Reset Defaults.................................................................................................................................... 102
Set Monitor Tag.................................................................................................................................. 103
PRODUCT NUMBERS & PARTS LIST.....................................................................104
6.1
Monitors............................................................................................................................................104
6.2
Sensors.............................................................................................................................................104
6.3
Options & Accessories ...................................................................................................................104
6.4
Spare Parts.......................................................................................................................................104
6.5
Calibration Equipment ....................................................................................................................105
6.6
Zero Calibration Gases ...................................................................................................................105
6.7
Calibration Gases1 ...........................................................................................................................105
APPENDIX A: DECLARATION OF CONFORMITY..................................................107
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
8
APPENDIX B: SPECIFICATIONS............................................................................. 108
9
APPENDIX C: TROUBLESHOOTING GUIDE .......................................................... 109
10 APPENDIX D: TUV CERTIFICATION....................................................................... 111
11 APPENDIX F: RETURNED MATERIAL AUTHORIZATION ..................................... 112
12 APPENDIX G: CONFIGURATION REFERENCE ..................................................... 113
13 APPENDIX H: MOUNTING DRAWINGS .................................................................. 119
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Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Packing List and Notices
You should have the following items:
SensAlarm Plus, Universal Gas Monitoring System User Manual
A SensAlert Plus Sensor Datasheet (1 – 4 pages)
A reversible black screwdriver with magnetic end
A gray PVC Sensor Shield
User Manual (this document)
SensAlert Plus Sensor is sold separately.
Please contact factory for a complete list of available sensors.
Verify that you have received all of the items listed above. If you have any questions or need assistance,
contact your Sensidyne Representative, or call 800-451-9444 or +1 727-530-3602
PROPRIETARY NOTICE
This manual was prepared by Sensidyne, LP exclusively for the owners of the SensAlarm Plus Universal Gas
Monitoring System. The material within this manual is the proprietary information of Sensidyne, LP and is to be
used only to understand and operate the instrument. By receiving this document, the recipient agrees that
neither this document nor the information disclosed within nor any part shall be reproduced or transferred,
physically, electronically or in any form or used or disclosed to others for manufacturing or for any other
purpose except as specifically authorized in writing by Sensidyne, LP.
COPYRIGHT NOTICE
© 2009, Sensidyne, LP, all rights reserved. Information contained in this document is protected by copyright.
No part of this document may be photocopied, reproduced, or translated to another program or system without
prior written authorization from Sensidyne, LP
TRADEMARK NOTICE
Sensidyne, the Sensidyne logo, SensAlert, SensAlarm, SensAlarm Plus, the SensAlert & SensAlert Plus logos,
ToD & Test-on-Demand are registered trademarks of Sensidyne, LP. The trademarks and service marks of
Sensidyne, LP are protected through use and registration in the United States of America.
SOFTWARE LICENSE
The software included with the SensAlarm Plus Gas Monitor is the property of Sensidyne, LP and shall remain
the property of Sensidyne, LP in perpetuity. The software is protected by U.S. and international copyright laws
and is licensed for specific use with the SensAlarm Plus Universal Gas Monitoring System. The user may not
reverse-engineer, disassemble, decompile, or make any attempt to discover the source code of the software.
The software may not be translated, copied, merged or modified in any way. The user may not sublicense,
rent, or lease any portion of the software. The right to use the software terminates automatically if any part of
this license is violated.
DISCLAIMER
SENSIDYNE, LP ASSUMES NO RESPONSIBILITY WHATSOEVER, TO ANY PARTY WHOSOEVER, FOR
ANY PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH CAUSED BY OR RESULTING FROM, IN
WHOLE, OR IN PART, THE IMPROPER USE, INSTALLATION, OR STORAGE OF THIS PRODUCT BY THE
USER, PERSON, FIRM, ENTITY, CORPORATION OR PARTY NOT ADHERING TO THE INSTRUCTIONS
AND WARNINGS OR NOT ADHERING TO ALL FEDERAL, STATE, AND LOCAL ENVIRONMENTAL AND
OCCUPATIONAL HEALTH AND SAFETY LAWS AND REGULATIONS.
THE SELLER SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR
OTHER DAMAGES RESULTING FROM THE SALE AND USE OF ANY GOODS AND SELLER’S LIABILITY
HEREUNDER SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF ANY GOODS FOUND DEFECTIVE.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE OR FOR
A PARTICULAR PURPOSE WHICH ARE EXPRESSLY DISCLAIMED.
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
WARNINGS
READ AND UNDERSTAND ALL WARNINGS BEFORE USE
Read and understand ALL warnings before using this product. Failure to read, understand, and comply
with ALL warnings could result in property damage, severe personal injury, or death.
Product is calibrated prior to shipment, however, this product must be calibrated prior to initial use. Calibrate at
regular intervals in accordance with the User Manual. Failure to calibrate in accordance with the instructions in
this manual and at the specified intervals may result in the product not operating properly or malfunctioning.
Read and understand ALL applicable federal, state, and local environmental health and safety laws and
regulations, including OSHA. Ensure complete compliance with ALL applicable laws and regulations before
and during use of this product.
The user/installer must understand the Hazardous Area Protection Concepts and Area Classifications
applicable to their operation.
UNDER NO CIRCUMSTANCES should this product be used except by qualified, trained, technically
competent personnel and not until the warnings, User Manual, labels, and other literature accompanying this
product have been read and understood.
ALWAYS wash your hands thoroughly after handling, calibrating, or servicing this product.
ALWAYS wear eye protection (such as safety goggles), face shield, chemical resistant gloves and chemical
resistant clothing when handling chemicals, or calibration sources.
DO NOT get chemicals, gases, fumes, or vapors in your eyes or on your skin, as they may cause severe burns
to skin and eyes. If chemicals, gases, fumes, or vapors get in your eyes or on your skin, wash the affected area
with copious amounts of water and call a physician immediately.
ALWAYS avoid any contact of acids with your skin or eyes. Seek immediate medical attention for any contact
with acids.
ALWAYS calibrate in a well ventilated area. Adequate precautions should be taken to prevent the buildup of
ANY calibration sources or vapors. Avoid breathing ANY calibration fumes or vapors as they may be
hazardous to your health.
ALWAYS dispose of chemicals and calibration sources in compliance with ALL applicable safety laws,
regulations, and guidelines for proper disposal. Failure to do so may result in environmental damage, property
damage, personal injury or death.
ALWAYS close ALL containers of chemicals used with this product after use.
ALWAYS ensure that any compressed calibration substance sources are empty prior to disposal, should they
be used.
ALWAYS use clean, dry, inert materials to contain and transfer substances used for calibration.
DO NOT remove, cover, or alter any label or tag on this product, its accessories, or related products.
DO NOT operate this product should it malfunction or require repair. Operation of a malfunctioning product or a
product requiring repair may result in serious personal injury or death.
DO NOT attempt to repair or modify instrument, except as specified in the Operation & Service Manual. If
repair is needed, contact the Sensidyne Service Dept. to arrange for a Returned Material Authorization (RMA)
(See Section 0 for details).
ALWAYS operate this product in its intended manner. Failure to do so may result in serious personal injury or
death.
Users should refer to MSDS and suppliers’ instructions for proper safety instructions and handling for any
chemicals used with this equipment.
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Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
WARNINGS
READ AND UNDERSTAND ALL WARNINGS BEFORE USE
Use ONLY genuine SENSIDYNE® replacement parts when performing any maintenance procedures
described in this manual. Failure to do so may seriously impair instrument performance. Repair or alteration of
the product beyond the scope of these maintenance instructions, or by anyone other than an authorized
SENSIDYNE® service technician, could cause the product to fail to perform as designed and persons who rely
on this product for their safety could sustain severe personal injury or death.
The SensAlarm Plus Universal Gas Monitoring System is an ambient air monitoring device. Restricting the
access of ambient air to the sensor may result in less than optimal monitoring performance.
Prolonged exposure to excessively high concentrations of Toxic gas may cause the sensor to produce
erroneous readings.
Always make use of a Rainshield to protect against variations caused by environmental conditions. Note that
reactive Gases such as ETO, HF, HCN, NO2, SO2, HCl, ClO2, or Cl2 are not compatible with the Rainshield.
Perform tests only within the specified operating ranges.
Sudden changes in pressure may cause temporary fluctuations in the sensor reading.
Sensors should be hot-swapped only when the Normal Operation Mode screen is displayed.
Caution - Failure to read and understand the User Manual may result in preventable severe
personal injury or death.
Caution, risk of electric shock if front cover is opened.
Important Calibration Considerations:
Verify the concentration of calibration gas before making calibration adjustments.
The concentration can be altered by:
Deterioration of the gas concentration during storage.
Interaction of the calibration gas with materials used to contain and transfer the gas (tubing), as for
example, absorption onto and permeation through certain plastics, polymers and elastomers.
Interaction of the calibration gas with ambient contaminants, such as water.
If further translation is required, please contact the Sensidyne EU Authorized Representative (see Back Cover
for contact information).
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
1 Introduction
This manual provides specific information concerning the installation, operation, calibration, and
maintenance of the SensAlarm Plus Universal Gas Monitoring System. SensAlarm Plus is capable
of detecting the presence of potentially hazardous concentrations of Combustible vapors and gases,
Toxic gases and Oxygen deficiency.
1.1
Product Versions
The SensAlarm Plus Gas Monitor is offered in four versions.
820-0301-01
Single Strobe (Red, left position)
820-0301-02
Single Strobe and Battery Backup
820-0301-03
Dual Strobe (Amber on left)
820-0301-04
Dual Strobe and Battery Backup
A standard SensAlarm Plus Monitor consists of electronics
modules (PCAs) in a fiberglass enclosure, a sensor interface
assembly, and a plug-in sensor specifically designed to detect a
target gas or vapor.
A large format 4-Digit LED display provides readout for gas
concentration. A red strobe (or Amber and Red) flashes during
configured alarm and warning conditions. A 95dB sounder also
activates during the alarm and warning conditions. The sounder
can be silenced with a red pushbutton switch. The alarm reset
conforms to ISA alarm sequence 3A
Product specifications for the SensAlarm Plus are in Appendix B,
Specifications.
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SensAlarm Plus – Universal Gas Monitoring System
1.2 Standard Features
1.2.1 Universal Sensor Capability
The SensAlarm Plus Monitor unit accepts a variety of sensor technologies,
including electrochemical, catalytic bead Combustible, and infrared
Combustible. Sensors can be installed without having to reconfigure or modify
the Monitor in any way. When a different SensAlert Plus sensor type is
installed in the Monitor the unit completely reconfigures the system functions
to match those of the new sensor. This includes changing all alarm and
calibration settings to match those of the new sensor.
1.2.2 Large Displays for Ease of Operation
The Monitor has a large format 4-digit LED display for gas concentration and a
backlit LCD with magnetic controls.
1.2.3 Non Intrusive Operation
Four magnetic switches on the backlit LCD allow full configuration, calibrations
and other functions to be performed without opening the Monitor enclosure. A
magnetic screwdriver is provided with the monitor.
1.2.4 Transportable Calibration
SensAlert Plus sensors have transportable calibration capabilities. Sensors
may be calibrated in the shop or at Sensidyne and then installed in the field
without any special tools or adjustments. When a new sensor is installed in the
unit, the Monitor automatically adjusts to recognize the new gas type and
range and adjusts system function accordingly.
1.2.5 Predictive Failure
Predictive Failure is a unique feature that provides the user with an early
warning of the pending expiration of a sensor. When the sensor has less than
10% of its life remaining, a warning appears on the main display, and can be
assigned to activate other warning indicators.
Predictive failure is based on sensor age, power on hours, calibration gain and
cumulative gas exposure. The user can also display Remaining Sensor Life
(percent) at any time.
1.2.6 AC & External DC Power Capability
SensAlarm Plus has an internal power supply for operation from 100-240
VAC, 50/60 Hz and rated at 24 VDC, 65 watts output. 24 VDC is used to
power the annunciation, so that the monitor is fully functional on external 24
VDC or internal battery back-up when furnished.
The optional, internal battery back-up will power the unit in the event of a
power failure. It provides 30 minutes operation in full alarm and 60 minutes
minimum when not in alarm, depending upon the installed sensor type.
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
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1.3 Factory Installed Options
1.3.1 Test-On-Demand™ Gas Generator
The SensAlert Plus Test On-Demand™ (ToD) feature allows the gas sensor
response to be confirmed quickly and easily. When activated, either manually,
or at programmed times, the ToD™ cell generates a small gas output which
should produce a signal from the gas sensor to verify that it is responsive to
gas. This un-manned “bump test” does not replace recommended calibration
procedures. The purpose of this feature is to provide a higher level of system
operating confidence by confirming that the sensor responds to gas. This
feature can be activated via the LCD display, or automatically using the Test
Date/Time menu. Environmental conditions or ToD cell depletion can cause
this test to fail. A low mA signal for 30 seconds will indicate failure or a relay
may also be assigned.
1.3.2 Remote Sensor Operation
The sensor is mounted in a sensor interface assembly on the bottom of
SensAlarm Plus. It can, however, be located up to 100 feet away. In this
manner, the detection of heavier or lighter than air gases and the use of
special fixtures such as sample draw or duct mounting can be easily done.
The sensor interface is connected without special cable or conduit. Sensidyne
furnishes all hardware to remote mount the sensor except for the 4 conductor
shielded cable.
1.3.3 Communication Options
An optional Communications PCA can be installed for RS-485 Modbus
Protocol, or HART Protocol.
821-0221-01
821-0220-01
RS 485, Modbus Protocol
HART
1.3.4 Dual Strobes
When two strobes are ordered, an Amber strobe will be mounted on the left side
and the Red strobe will be on the right. Different color strobe lens are available,
consult the factory.
1.3.5 Internal 30 Minute Battery Backup
An integral battery back-up option with internal charging is offered for those
applications with frequent power interruptions, or to provide SensAlarm Plus
operation in the event of power failure. If a gas alarm occurs during battery
back-up, a minimum of 30 minutes operation is available. The unit will
operate for a much longer time if there are no alarms and depending upon the
installed sensor type.
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SensAlarm Plus – Universal Gas Monitoring System
1.4 SensAlarm Plus Components
1.4.1 Sensor Interface Assembly
The sensor interface assembly contains the electronics that operate the
sensor and houses the SensAlert Plus sensor and the optional Test-onDemand™ cell.
1.4.2 SensAlert Plus Sensor
SensAlert Plus Sensors are available in a variety of sensor technologies for
detecting Toxic, Oxygen, and Combustible gases. The SensAlert Plus Sensor
is discussed in greater detail in Section 1.4.8. The sensor gasket seals the
sensor inside the sensor holder.
1.4.3 Test-on-Demand™
The optional Test-on-Demand™ (ToD™) gas generating cell provides a
method for periodic sensor response verification (programmed or manually
activated). The T-O-D gasket seals the generating cell inside the sensor
holder.
1.4.4 Sensor Holder
The sensor and ToD™ gas generating cell are housed in the Sensor Holder.
The sensor holder is easily installed and removed via the retaining ring located
on the sensor interface assembly. The sensor holder is black anodized
Aluminum and optional gray PVC.
1.4.5 Rainshield
The optional rainshield protects the sensor and ToD cell from liquid
intrusion due to rain, splash-back, or unintentional washdown. Reactive
Gases such as ETO, HF, HCN, NO2, SO2, HCl, ClO2, or Cl2 are not
compatible with the Rainshield.
1.4.6 Calibration Plug Assembly
The calibration plug assembly secures into the sensor shield or replaces the
Rainshield when the Monitor is being calibrated.
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Single or Dual Strobes
(Red or Amber and Red)
Large Format LED Display
Power Source Available LEDs
AC External DC Battery
Magnetic Controls (OK <<)
LCD Display
Magnetic Controls ( )
Reset Switch
And Sounder
Interface Assembly
(Sensor Head)
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1.4.7 Liquid Crystal Display and Magnetic Controls
The Liquid Crystal display is backlit and has a contrast adjustment.

Gas Concentration or Value
The gas concentration is displayed in large characters with the units of measure (ppm, %vol, %LEL), as
required by the installed sensor. This information is automatically retrieved from the sensor on power up.

Gas Type & Maximum Sensor Range
Displays the chemical symbol or abbreviated name of the target gas sensor installed in the Monitor.
The range of the sensor is displayed to the right on the same line.

Local Date and Time
The date can be user formatted. The
time is displayed in a 24 hour format.

Monitor Name or ID
User-entered field for Monitor
identification.

OK Control (Magnetic Switch)
OK is one of the four magnetic switches
used to operate the SensAlarm Plus menu.
OK is used to confirm operations or select
a menu item. Activating OK from the Main
Display brings up a menu listing the
operations that can be performed.

<< (Go Back)
<< is the opposite of OK. If you change
your mind while performing any operation,
activating << will take you back to the
previous operation.
 ▲ and ▼
The ▲ and ▼ control arrows are used to scroll up or down the menu and to increase or decrease a value
(such as an alarm Setpoint). Holding the wand near these magnetic switches causes the displayed value to
increase or decrease.

Red LEDs 1 through 4
The LCD display has four Red LEDs that light to confirm that magnetic switch contact has been made with
the magnetic wand. They also light when an alarm or fault condition is occurring.
Each Red LED is also associated with the respectively numbered alarm relays. LED 1 (Relay 1) is factory
set as the “fault” LED/Relay. LED 2, 3 and 4 are associated with relays 2, 3, and 4.

This line is used for important system messages and warnings such as “Alarm 1 is On.”
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1.4.8 Sensor Types
NOTE
DO NOT attempt to install any other sensor type into a SensAlarm Plus except those manufactured by
Sensidyne and intended for this product.
A complete list of available sensors, sensor specifications, interferences, and calibration equipment
can be found on line at www.sensidyne.com.
Sensors should be hot-swapped only when the Normal Operation Mode screen is displayed.
Sensor Types
Infrared
Infrared sensors are used to detect Combustible gases or vapors
and Carbon Dioxide.
Catalytic Bead Combustible
Catalytic Bead sensors are used to detect Combustible gases and vapors.
Sealed Electrochemical
Sealed electrochemical sensors are used to detect Toxic gases.
Oxygen
Oxygen sensors are used to monitor ambient Oxygen levels
to detect Oxygen Deficiency.
Sensor Assembly
The sensor assembly consists of a gas sensor attached to a circuit board. An
EEPROM on the circuit board contains essential sensor identification information that
is communicated to SensAlarm Plus during sensor installation. This information
allows the sensor to be calibrated in the shop or at Sensidyne and hot-swapped in
the field without further calibration.
Note: Oxygen and Infrared Sensors must be calibrated at the altitude of use.
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SensAlarm Plus – Universal Gas Monitoring System
NOTE
The ETO, NO and 100 PPM HCl sensors are shipped with battery boards
attached to maintain a sensor bias. Batteries are designed to maintain
biasing for up to 90 days. Battery boards should remain attached to the
sensor until just prior to sensor installation, and should be removed in a
non hazardous (classified) safe area just prior to installation of the
sensor into the SensAlarm Plus Monitor. The sensor can be unplugged
from the battery board for a maximum of 5 minutes. Note that, if
unplugged or unpowered for 15 seconds, a sensor may take 2 minutes to
return to zero once it is plugged into a Monitor or powered up. If
unplugged or unpowered for 5 minutes, a sensor may take several hours
to return to zero once it is plugged into a Monitor or powered up.
NOTE
If the sensor is not installed or not completely engaged, “Missing
Sensor” is displayed on LCD display. The Monitor’s 4-20mA output
returns a “Loop-Fail” condition by providing an unvarying default output
of < 3.0 mA (user adjustable 1-4mA).
1.4.9
SensAlarm Plus Housing
The product housing is a NEMA 4X Fiberglass enclosure. When the optional
battery back-up is ordered, the enclosure is vented and the rating becomes
NEMA 3R, IPX4. The raw enclosure is UL listed.
1.4.10 SensAlarm Plus Power Available LED (3)
Three green LEDs are below the large format display to indicate what power sources are available for
operation. Normal operation would be from AC power or external 24 VDC power. Note that both LEDs (AC
Power, External DC) will be on when both power sources are available.
Installed integral battery back-up is indicated by the third LED being illuminated. This power source will only be
used in the event that the primary power source(s) are not available.
1.4.11 Red Strobe
The standard base SensAlarm PLUS includes one Red Strobe Annunciation
light which actuates on low and high alarms. The strobe is a double flash, high
recognition unit approved to SAE J1318 Class 3 for gaseous discharge
warning lamps. The 2.2 Joule strobe has Fresnel lens optics and doubleflashes 70 times per minute.
MAINTENANCE
WARNING: High voltage generated by the light’s power supply may cause
property damage, serious injury or death to you or others. Ensure that power
to light is disconnected and wait at least 5 minutes before working on the light.
As strobe lights are used, the flash tubes begin to darken, decreasing light
output. Also, as flash tubes age, they may have a tendency to misfire.
After extended operation, occasionally check for flash tube degradation.
Should the flash tube misfire, have a noticeable decrease in light output or
glow continuously, it should be replaced. To replace the flash tube, proceed
as follows:
A. Disconnect power.
B. BE CAREFUL! Use GLOVES and EYE PROTECTION to avoid personal
injury in the following procedure.
C. Twist the lens (1) counter-clockwise to remove it from the base.
D. The Flash tube can be removed by grasping and pulling upward on the
white potted base.
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E. CAUTION: The service life of the new strobe tube will be shortened if the glass portion is touched. If glass
has been handled, clean carefully with a grease solvent.
F. Install a new flash tube. Observe handling caution.
G. Reassemble the light by replacing the lens.
H. Reconnect power and test for proper operation.
1.4.12 Amber Strobe (option)
A second strobe is optional for SensAlarm PLUS. When this is ordered, An Amber strobe is placed on the left
and the Red strobe is on the right. The Amber strobe will flash on low alarm and high alarm. The red strobe
flashes only on high alarm. The strobe specifications and maintenance are the same as described above.
1.4.13 Sounder
A 95dB Piezo horn is located on the bottom right side of the enclosure. The sounder activates during alarm and
warning conditions. The sounder can be silenced with a red pushbutton switch. The alarm reset conforms to
ISA alarm sequence 3A.
1.4.14 Reset Button
SensAlarm PLUS has a Red Alarm Reset Pushbutton on the bottom right side of the enclosure. This
Pushbutton can be used to reset or release a latched Alarm Relay and / or to silence the Piezo horn on the
enclosure. This function conforms to ISA Alarm Sequence 3A, that is, when the local horn is silenced, the
Strobe Annunciation will continue to flash and the associated Alarm Relays will remain energized. If the unit
goes out of alarm and then back into alarm, the horn will resume until the Reset Pushbutton is depressed
again.
The high Alarm Relay in SensAlarm is not affected by the Reset Button so a remote horn cannot be silenced.
The latched Alarm relays can only be released by pushing the Reset button, however they will release only
when the unit is not in Alarm.
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SensAlarm Plus – Universal Gas Monitoring System
1.5 Electronics Modules
The electronic modules operate the sensor, determine sensor response, actuate the alarm relays, turn on the
annunciation (horn and strobe), converts the sensor response into a 4–20 mA current, linearly proportional to
the concentration of the target gas present at the sensor, and optionally provide RS 485 Modbus or HART
communications protocol output. The sensor response reading is displayed on both the LCD and large format
LED Displays.
Power On-Off Switch
(AC & External DC)
TB5
 Alarm Relays (4)

 Main PCA
AC Fuses
Door Ribbon Cable
AC Power In TB1
TB6
K2
K3
TB7
K4
TB4
K1

TB1
DC Power In TB2
DC Fuses
DC Fuses


TB1
 Optional Comm. PCA
TB2
Test Points
 4-20 mA Output
Test Points
Optional Batteries
 Sensor Input Barrier
 Battery Charger


95 dB Sounder
 Reset Switch

The SensAlarm Plus Monitor has non-intrusive controls that do not require the enclosure to be opened
for calibration, alarm adjustment, or other functions. However, test points are provided on the main
PCA in case service personnel wish to monitor the output.
An internal 10 ohm resistor between test points TP2 and TP3 in series with the output loop current of 4–20 mA
produces a voltage across the test points of 40–200 mv, corresponding to the sensor range.
NOTE
A HIGH IMPEDANCE VOLTMETER (PREFERABLY DIGITAL), WITH A MINIMUM FULL SCALE
CAPABILITY OF 200 MV AND A RESOLUTION OF ±1 MV, IS REQUIRED TO MONITOR VOLTAGE AT
THE TEST POINTS.
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1.5.1 Display PCA
The front and rear views of the Display LCD PCA are shown below about half of actual size on the printed
page. The Display PCA back is barely visible inside the front cover of SensAlarm Plus. The display contrast
adjustment can be reached with a finger.
Display
Adjust
Underneath
1.5.2 LED display (4-digit) PCA
The front and rear views of the large format display are shown below about half of actual size on the printed
page. There are no user adjustments.
1.5.3 Power Assembly TB1, TB2
AC Power and, or External 24 VDC Power are connected to
TB1 and TB2, respectively. The external DC power fuses are
shown on the lower left. The AC fuses are located under the
metal shroud for safety and can be accessed by removing the
four (4) screws.
TB2
TB1
AC Fuses
DC Fuses
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1.5.4 Barrier PCA
The barrier PCA is an intrinsic safety barrier for the sensor interface
and is located in the lower left corner of the enclosure. This circuitry
is not yet approved by a third party for sensor location in a hazardous
(classified) area. There are no user adjustments on the barrier PCA
Sensor
Terminal
Block
1.5.5 AC Power supply
The AC power to 24 VDC power supply is mounted on edge under the power assembly (On-Off Switch, TB1,
TB2 and Fuses. There are no user adjustments on the AC power supply.
1.5.6 Main PCA
TB5
The main PCA accepts the input of the sensor interface
and processes the signal to provide display inputs, alarms and analog
output signals. A fault relay and three alarm relays are also provided. The
PCA has removable terminals for easy wiring convenience. See K1 - K4
and TB4 – TB7 above in photo at right. Also note sensor interface
connector, test points, 4-20 mA terminals (TB1), Reset and Beeper
connections (internal).
Strobe
TB
TB6
K2
K3
TB7
TB4
K4
K1
Strobe
TB
Optional
Communications
PCA
Beeper
Power Interface
Reset
Reset

4 -20 mA
Test Points
Sensor Interface
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2 INSTALLATION
2.1 Location
Monitoring efficiency will depend upon the appropriate mounting and
placement of the gas Sensor. The SensAlarm Plus Gas Monitor is a point
(local area) gas detector which should be mounted in proximity to a potential
leak source or hazard condition. The Gas Sensor is often mounted remotely
from the SensAlarm Plus in an area containing a potential gas hazard such as
a battery room, gas bottle storage area or instrument shelter. The SensAlarm
Plus itself is conveniently located, usually near the entrance to such an area or
perhaps inside depending on the annunciation requirements and whether or
not an area is normally occupied.
Expert consultation may be necessary to determine the most appropriate
location for optimum monitoring. In all circumstances, the plant safety officer
or other appropriate personnel should be consulted before installation.
Site determination, at a minimum, must consider the following factors:
• Most probable location(s) of a hazardous gas leak
• Physical properties of the target gas (heavier or lighter than air)
• Air movement in the area due to HVAC or ambient conditions
• Operational environment (vibration, temperature, humidity, wind, etc.)
• Presence of interferent gases (see Sensor datasheet)
• Access for routine preventive maintenance
2.2 Fire or other Code Compliance Issues and
annunciation requirements
The Uniform Fire Code and the International Fire Code both have evacuation requirements of buildings during
emergency conditions. These mainly concern egress safety and routes, evacuation time, and include
emergency lighting specifications.
If a gas detection system alarm can result in an evacuation alarm, or simply has Fire Department supervisory
notification due to a hazardous material release, the system may be required to have battery or UPS type
back-up power for 30 or 60 minutes. This provides for operation during a power failure, and enough time to
furnish valuable status information to emergency responders.
SensAlarm PLUS is available with battery back-up to provide 60 minutes of non-alarm operation and at least
30 minutes of operation under full alarm conditions
2.3 Monitor Installation
NOTE
Always refer to the NEC and local electrical codes to ensure compliance for proper installation.
The SensAlarm Plus Monitor mounts directly to the wall via four (4) mounting feet (included).
The monitor must be mounted to a wall stud or plate to properly support the weight of the monitor.
Three (3) ¾” Rigid / IMC grounding hubs are provided for wiring access.
The top Rigid / IMC grounding hub must be used for mains connection.
The middle Rigid / IMC grounding hub must be used for relay wiring.
The bottom Rigid / IMC grounding hub must be used for DC power input, 4-20mA output.
Metal conduit should be used to achieve maximum RFI/ EMI immunity.
The Monitor must be mounted vertically (± 5° from center) with the sensor assembly pointing down.
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SensAlarm Plus – Universal Gas Monitoring System
Refer to Section 13 Appendix H
Document No. 360-0126-01 (Rev. D)
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Wiring
Power On-Off Switch
(AC & External DC)
 Alarm Relays (4)
Strobe
TB
 Main PCA

Door Ribbon Cable
AC Power In TB1
AC Fuses
TB6
K2
K3
TB7
K4
TB4
K1
Strobe
TB

TB1
DC Power In TB2
DC Fuses
Optional
Communications
PCA
Beeper
Reset
TB2
 Optional Comm. PCA
DC Fuses


TB1
 4-20 mA Output TB1
Test Points
TB5
Test Points
Optional Batteries
 Sensor Input Barrier

 Battery Charger
95 dB Sounder
 Reset Switch


2.3.1 AC Power
AC WIRING NOTES
When wiring the Monitor to a permanent AC source, the AC source circuit breaker and/or switch must be IEC
approved. The circuit breaker and/or switch must be near the unit and marked as the disconnect device.
Minimum current rating must be 10 A. Minimum wire size for Mains conductor is 18 AWG. Use only U.L. listed
conduit hubs that have the same or better environmental rating as the enclosure.
1) Unlatch and open the Monitor cover.
2) Confirm that the AC power is not energized, and thread the wires through the top Rigid / IMC grounding hub.
(A cable that totally encases these wires is recommended.) Make certain you tighten the Rigid / IMC grounding
hub sufficiently to ensure a moisture resistant seal to the cable conduit.
3) Make certain the Rigid / IMC grounding hub is secured tightly to the Monitor enclosure.
4) Loop the Mains Ground Conductor once through one of the three supplied Ferrite
Beads. Repeat process for the two remaining Mains Conductors. Once complete, each
Conductor should be through its own individual Ferrite Bead.
5) Make certain the wires are properly secured to the AC Terminal Block (TB1).
NOTE
AC (Earth) ground must terminate on TB1 ground terminal to prevent electric shock hazard.
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SensAlarm Plus – Universal Gas Monitoring System
6) Wire the relay and 4-20 mA terminals as desired using appropriate wire sizes and shielding.
2.3.2 DC Power
1) Unlatch and open the monitor cover.
2) Confirm that the DC power is not energized, and thread the wires through the bottom Rigid /
IMC grounding hub. (A cable that totally encases these wires is recommended.) Make certain
you tighten the Rigid / IMC grounding hub sufficiently to ensure a moisture resistant seal to the
cable conduit.
3) Make certain the Rigid / IMC is secured tightly to the monitor enclosure.
4) Make certain the wires are properly secured to the DC terminal block (TB2).
2.3.3 Wiring Procedure (4-20 mA Output)
1)
2)
3)
5)
6)
Refer to photograph.
Verify that the conduit and the Monitor are properly connected.
Unlatch and open the SensAlarm Plus cover.
Verify that the total resistance of the wiring does not exceed the allowable loop resistance.
Thread the wires through the bottom Rigid / IMC grounding hub. (A cable that totally encases
these wires is recommended.) Make certain you tighten the Rigid / IMC grounding hub
sufficiently to ensure a moisture resistant seal to the cable conduit.
7) Connect the 4-20 mA output wire to the 4-20 mA terminal on TB1 of the Main PCA.
8) Connect the Return wire to the RTN terminal on TB1 of the Main PCA.
9) Close the Monitor cover. Secure the cover by closing the quick-release latches.
2.3.4 Wiring Procedure (Relay Outputs)
Relays 2, 3, 4 auxiliary relays are wired to be “normally de-energized” during normal operation
(factory setting), while the Fault (Relay 1) alarm relay is wired to be “normally energized” during
normal operation. Thread the wires through the middle Rigid / IMC grounding hub. (A cable that
totally encases these wires is recommended.) Make certain you tighten the Rigid / IMC grounding
hub sufficiently to ensure a moisture resistant seal to the cable conduit.
Relay 1 “Fault” K1 TB4
Wire Relay 1 as follows:
1) There are three terminals on the relay terminal block:
A, Com, & B. Because the relay is normally energized terminal “A” =
Normally Closed (NC) and terminal “B” = Normally Open (NO). The
diagram at right will aid in wiring the relay.
Relay 2 “Low” K2 TB5
Relay 3 “HI”
K3 TB6
Relay 4 “HI HI” K4 TB7
Wire Relays 2-4 as follows:
1) There are three terminals on each relay terminal block:
A, Com, & B. Because the relay is normally de-energized terminal “A” =
Normally Open (NO) and terminal “B” = Normally Closed (NC). The
diagram at right will aid in wiring the relay.
Document No. 360-0126-01 (Rev. D)
Normally Energized
A (NC)
COM
B (NO)
No Alarm
Normally De-energized
A (NO)
COM
B (NC)
No Alarm
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
Start Up
This section contains information necessary to perform the initial start
up of the SensAlarm Plus Gas Monitor.
To start, you need the magnetic screwdriver which was
provided to complete this procedure. See Figure 2-1 (right) for
component identification.
1) Unscrew the retainer ring (turn left to right) and remove the sensor
holder by pulling downward.
2) Open the SensAlarm Plus enclosure by releasing the two corner
latches. Locate and turn on the power switch and then close the
cover. After the start-up screens have been displayed a “Missing
Sensor” message appears.
IMPORTANT
If you have an Ethylene Oxide, NO or 100 PPM HCl sensor with a
battery board, you have to remove the battery board from the
sensor and install the sensor into the SensAlarm Plus Monitor
within 20 seconds to avoid an excessive wait for the sensor to
return to zero.
Biased sensors may require an extended period of time to stabilize if
they have been disconnected from the battery board for more than five
(5) minutes and may take several hours to return to zero once plugged
in and powered up.
3) Install the SensAlert Plus sensor by inserting the sensor in the
sensor interface assembly using the two larger mounting posts as
guides. Hold the sensor by its outside edges. If force is required to
engage the connector, press on the green circuit board. To avoid
damaging the sensor, do not apply pressure to the center of the
sensor membrane. To remove the sensor, pull on the circuit board
edges rather than the sensor.
4) Once the SensAlarm Plus Monitor recognizes the sensor assembly,
a “Warm Up” message appears on the display for 60 seconds
before the Monitor begins normal operation.
5) As shipped, the sensor holder has a plug in the Test-on-Demand™
well. Remove this plug only if a Test-On-Demand™ cell will be
installed. Place the gasket inside the sensor holder. Ensure the
O-ring is in the sensor holder and install up over the mounted
sensor by aligning with the mounting posts. Rotate the retaining
ring on the assembly from right to left to secure the holder.
Screw in the sensor shield.
Figure 2-1
Sensor Installation
WARNING
After power has been applied to the Monitor sensor stabilization occurs (lasting about 1 hour). During
this time the sensor reading may fluctuate, possibly causing the alarms to activate (including any
external alarms connected to the controller).
6) Allow the Monitor to stabilize at least one (1) hour before zeroing the sensor. The display reading should
go toward “0” (or 20.9 %vol for ambient Oxygen sensors). After stabilization is complete indicated by a
constant displayed value, go to Section Error! Reference source not found. and perform the zeroing
procedure, even if the display is “0”.
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SensAlarm Plus – Universal Gas Monitoring System
3 Operating Functions
In this Section, the procedures for performing common operating functions are
presented in detail. For complete information on the structure of the
SensAlarm Plus operational menu system, refer to Section 5.
3.1
Calibration
Sensidyne equipment is tested and calibrated prior to shipment. Once the Monitor has stabilized after
installation, qualified personnel should verify calibration by applying zero and span gases. This
procedure should be performed at commissioning, then repeated 30 and 60 days afterwards, with
deviations in zero and span recorded.
For further information, please refer to Recommended Practice for the Installation, Operation, and
Maintenance of Combustible Gas Detection Instruments (ANSI/ISA TR12.13.02-2003) published by the
ISA.
For a list of calibration equipment available for calibrating the SensAlarm Plus Monitor see Section 6.5:
Calibration Equipment.
Always:











Allow the Monitor to stabilize with power applied for at least 1 hour before performing any calibration.
Set up the calibration equipment according to the instructions that came with the equipment.
Zero the sensor prior to every span calibration.
Refer to the Sensor Data Sheet that came with your sensor for any special instructions.
See Appendix B: Specifications for humidity and temperature requirements.
Use certified Bottled Calibration Gas supplied by Sensidyne.
Use of non-Sensidyne calibration gas is AT YOUR OWN RISK.
Perform calibration at normal environmental conditions.
Calibrate in a well ventilated area.
Prevent buildup of any gases or vapors.
Avoid breathing any fumes or vapors as they are hazardous to your health.
Maintain an accurate and up-to-date Calibration Record.
To begin Calibration:
1) Select OK on the Normal Operation Display to bring up the Main Menu
2) The cursor should be next to “Calibration Mode” if not, adjust the position
using the up and down arrows.
3) Select OK to bring up the Calibration Mode menu.
Document No. 360-0126-01 (Rev. D)
>>Calibration
Mode
Calibration Mode
Maintenance
Mode
Maintenance Mode
Data
Review
Data Review
Test-On-Demand
Test-on-Demand
System
SystemConfiguration
Config
Lost Password
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The Calibration Mode screen displays the calibration gas level, date, and time
of the last successful span calibration.
Calibration
Mode
> Calibration Mode
LastMaintenance
Cal @ 50Mode
PPM
05/17/06
11:23:34
Data Review
Test-on-Demand
> Zero
Transmitter
System Config
Calibrate
Set Cal Gas Conc
3.1.1 Zeroing the Monitor
Zeroing sets the monitor to a baseline output for when the target gas is NOT present.
Note:
This procedure applies to most sensors. However, some sensors require a special zeroing procedure. i.e.
Oxygen Deficiency sensors.
Refer to the “Sensor Data Sheet” that came with the installed sensor for a complete list of instructions.
1) The cursor should be next to “Zero Transmitter” if not, select the position
using the up and down arrows.”
2) Select OK.
3) When this screen appears, apply the zero gas. For some sensors, the
ambient air free of the target gas will be sufficient.
4) Select OK to continue zeroing the Transmitter.
Using the << anytime before the zeroing finishes will exit the zeroing routine
and restore the initial zero setting.
5) “Zeroing In Progress” is displayed during zeroing and typically lasts less
than 60 seconds.
Calibration Mode
> Calibration Mode
LastMaintenance
Cal @ 50
PPM
Mode
05/17/06
11:23:34
Data Review
Test-on-Demand
> Zero
Transmitter
System Config
Calibrate
Set Cal Gas Conc
ZERO
gas
>Apply
Calibration
Mode
Maintenance Mode
Select
OK
To Continue
Data
Review
Test-on-Demand
Select
<< To
Cancel
System
Config
> Calibration
ZeroingMode
Maintenance
In ProgressMode
Data Review
Test-on-Demand
System Config
Select << To Cancel
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SensAlarm Plus – Universal Gas Monitoring System
6) This screen appears when zeroing is successful.
7) Remove the zero gas.
8) Select OK to return to the Main Menu Display.
> Zero
Calibration
Mode
Complete
Maintenance
GOOD Mode
Data Review
Test-on-Demand
System
Config
Select
OK To
Continue
9) Select << to return to the Normal Operations Display.
Note:
If nothing is selected for 5 minutes, this screen will automatically return
to the normal operations display.
10) Zero Fail
If zeroing is not successful for any reason this screen will appear.
Repeat Zero procedure.
If Zero fails after second attempt, replace Sensor and repeat Zero.
If still unable to set Zero, contact the Sensidyne Service Department.
> Calibration Mode
Zero Complete
Maintenance Mode
FAIL
Data Review
Test-on-Demand
System Config
Select OK To Continue
3.1.2 Span Calibration
Important information concerning sensor function is stored in sensor memory each time it is calibrated and
during normal operation. Sensor data includes zero and span calibration parameters, as well as the temperature
compensation characteristics for that particular sensor. This gives the SensAlert Plus sensors a special
capability to be calibrated in the laboratory using one Monitor and then installed in another Monitor in the field
without any further modification or recalibration.
Note:
The Monitor should also be calibrated if the sensor assembly has been replaced with an un-calibrated sensor
or the Monitor has been exposed to gas concentrations at alarm levels.
Note about K-Factors:
A K-Factor is needed for combustible sensors when the target gas is different from the calibration gas
(Methane or Propane). Go to Section 3.2.2 and select a K-Factor before calibrating any Catalytic Bead or
Infrared Combustible Monitor with a calibration gas other than Methane or Propane.
Important:
This span calibration procedure applies to most sensors. However, some sensors require a special
calibration procedure.
Refer to the “Sensor Data Sheet” that came with the installed sensor for a complete list of instructions.
Equipment Needed for this Procedure: see Section 6.5: Calibration Equipment

Sensor Data Sheet

Magnetic Screwdriver (provided).

SensAlert PLUS Calibration plug

Regulator to fit bottled calibration gas (if required)
Document No. 360-0126-01 (Rev. D)
Page 29
SensAlarm Plus – Universal Gas Monitoring System
User Manual

Tubing, Tygon® for non-reactive gasses,
Teflon® Tubing, for Chlorine, Ammonia, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen
Cyanide, Nitrogen Dioxide, Phosgene, Sulfur Dioxide, and Ethylene Oxide. (Refer to Sensor
Data Sheet)

Calibration Gas is available from Sensidyne.
Use of non-Sensidyne calibration gas is AT YOUR OWN RISK.
Note:
During calibration, the 4–20 mA signal (using factory settings) is locked at 4 mA for many sensors and 17.38
mA (20.9% Vol) for ambient Oxygen sensors.
See the Sensor Data Sheet that came with your sensor for other possible values.
1) Select OK with the magnetic screwdriver to bring up the Main Menu.
Note:
Using << anytime during the calibration is in process will cancel the
calibration, return the Monitor to the Calibration Screen and restore the
span calibration value. If gas is present, and a value is displayed,
returning the Monitor to normal operation may create alarms.
2) Select OK to bring up the Calibration Mode menu.
>>Calibration
Mode
Calibration Mode
Maintenance
Mode
Maintenance Mode
Data
DataReview
Review
Test-On-Demand
Test-on-Demand
System
SystemConfiguration
Config
Lost Password
Calibration Gas Concentration Check:
Verify that the gas level used for calibration is the same as the calibration gas
concentration.
In this screen, the gas concentration is shown for the last calibration. The
calibration gas level shown must match the calibration gas concentration being
used.
Mode
Calibration Mode
>Calibration
LastMaintenance
Cal @ 50
PPM
Mode
05/17/06
11:23:34
Data Review
Test-on-Demand
Zero
Transmitter
System Config
Calibrate
> Set Cal Gas Conc
To change the Calibration Gas Concentration:
1) Use the ▼ arrow to move to “Set Cal Gas Conc”
2) Select OK.
Page 30
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
This screen displays the current calibration gas concentration.
3) Use the ▲ and ▼ arrows to adjust the calibration gas level to match the
concentration of the calibration gas.
4) Select OK to set the new gas level.
The unit returns to the Calibration Mode menu after a few seconds.
Set
Cal GasMode
Conc
Calibration
>
Maintenance Mode
Data Review
Test-on-Demand
System Config
25 PPM
Note: Some Gases and Sensors may require pre-exposure for successful calibration.
Span Calibration:
1) Attach the delivery tubing from the calibration equipment to the hose
connector on the calibration plug.
From the Calibration Mode Menu:
2) Use the ▼ arrow to move the cursor to “Calibrate.”
Mode
>Calibration
Calibration Mode
Mode
Calibration
>
Maintenance
Mode
LastMaintenance
Cal @ 50
PPM
Mode
Data
Review
05/17/06
11:23:34
Data Review
Test-on-Demand
Test-on-Demand
Zero
Transmitter
System Config
Config
System
> Calibrate
Set Cal Gas Conc
3) Select OK to begin Calibration.
4) This screen indicates that the Monitor is ready for the Calibration Gas.
5) Begin applying the gas. (Start the regulated flow.)
The system will automatically begin calibration once the calibration gas is
detected.
> Calibration Mode
Maintenance Mode
Apply Gas Now
Data Review
Test-on-Demand
System Config
Select << To Cancel
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
In Progress
> Cal
Calibration
Mode
CalMaintenance
To:
50Mode
PPM
6) During calibration this screen will appear. Exposure times will vary
depending on the gas.
Data Review
The gas “Level” shown is a “live” reading. During exposure the “live” reading
will increase until the gas concentration reaches stability
Level:
19 PPM
Test-on-Demand
System Config
Select << To Cancel
“Warning: exiting the calibration routine at this step may cause alarms
to activate
After a few moments the displayed gas level should stop changing. The
system will detect that the level is stable and finish the calibration
Note: Any changes in gas level during calibration will be interpreted as
instability and will cause the system to prolong the calibration procedure and
even fail the calibration.
In Progress
> Cal
Calibration
Mode
CalMaintenance
To:
50Mode
PPM
Data Review
Level:
50 PPM
Test-on-Demand
System Config
Select << To Cancel
Calibration Complete:
1) This screen appears showing the Monitor was successfully calibrated.
2) Remove the calibration equipment.
3) Select OK
The screen will return to the Normal Operations Display when the gas level
reading returns to zero.
Note: If you do not select OK after calibration and 5 minutes has elapsed, the
screen automatically changes to the Normal Operations Display. Returning to
the Normal Operations Display re-activates the 4 – 20 mA output.
Calibration
> CalibrationComplete
Mode
OK
@ 50 PPM
Maintenance
Mode
Remove
Gas Now
Data Review
Test-on-Demand
Select
OK To
Complete
System
Config
Calibration Fail:
1) This screen appears if the calibration was unsuccessful.
2) Remove the calibration equipment.
3) Select OK
Possible causes for failed calibration:

Old sensor

Unstable gas concentration

Obstruction in gas delivery equipment
Page 32
Calibration Complete
> Calibration Mode
FAIL @ 50 PPM
Maintenance Mode
Remove Gas Now
Data Review
Test-on-Demand
Select OK To Complete
System Config
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
3.2 Sensor Adjustment
This section covers Sensor Adjustment for either a Catalytic Bead or Infrared Combustible sensor.
There are no adjustments possible for an Oxygen or Toxic sensor.
There are three settings in Sensor Adjustment:

Calibration Gas Selection from a preset list.

K-Factor Selection from a list.

Custom K-Factor definition where the K-Factor can be manually entered.
Note about K-Factors:
A K-Factor must be entered when the target gas is different from the standard calibration gases Methane or
Propane.
To gain access to the “Sensor Adjustment” control menu:
1) Select OK to enter the main Menu.
2) Use the ▼ arrow to move the cursor to “System Configuration”:
3) Select OK.
Main Menu
> Calibration Mode
Calibration Mode
MaintenanceMode
Mode
Maintenance
DataReview
Review
Data
Test-on-Demand
Test
On Demand
System
Config
> System
Configuration
Lost Password
4) Use the ▼ arrow to move the cursor to “Sensor Adjustment”:
Note:
--more-- appears at the bottom when there are additional items scrolling
down, at the top and bottom of the screen when in the middle of the
menu and only at the top when there are additional items scrolling up.
System Configuration
Mode
> Calibration
Self
Test
Alarm
Settings
Maintenance
Mode
4/20mA
DataAdjustment
Review
Adjust Date/Time
Test-on-Demand
Communication Setup
Config
TODSystem
Mode Adjustment
--more--
System Configuration
Calibration Mode
>--more-Maintenance
Mode
ToD
Mode Adjustment
> Sensor
Adjustment
Data Review
Set
Password
Test-on-Demand
Reset Defaults
System
Config Tag
Set Transmitter
Document No. 360-0126-01 (Rev. D)
Page 33
SensAlarm Plus – Universal Gas Monitoring System
User Manual
This screen will appear if an Oxygen or Toxic gas sensor is installed. No
further adjustments are available through this control.
Select OK to return to the System Configuration Menu.
Sensor
Adjustment
> Calibration
Mode
Maintenance
Mode
No
Adjustments
Data
Review
Are Possible
Test-on-Demand
Select
OK To Continue
System Config
3.2.1 Select Calibration Gas
This screen will appear if sensor adjustment is allowed.
To Select Combustible Calibration Gas:
1) Use the ▲ and ▼ arrows to move the cursor to “Select Cal Gas”
Sensor
Adjustment
> Calibration
Mode
Maintenance Mode
> Select Cal Gas
Data Review
Select K Factor
Test-on-Demand
System Config
2) Select OK
This screen appears. The cursor indicates that Methane is the current
Combustible calibration gas.
Cal Mode
Gas
> Select
Calibration
Maintenance Mode
> Methane
Data Review
Propane
Test-on-Demand
Other
System Config
There are three selections for Calibration Gases:

Methane

Propane

Other
If “Other” is selected as the calibration gas then all options under the Select KFactor menu change to either “None” (1.00) or “Custom K Factor.”
Note:
Use “Other” as the calibration gas if both the target gas and the calibration
gas are the same (e.g., Butane). In this case a K-Factor of “None” would also
be selected.
This screen appears if a Catalytic Bead Combustible sensor is installed.
Using << at this time will cancel this process, return the Monitor to the Select
Cal Gas Screen and restore the previous Cal Gas value.
3) Select OK to save the new cal gas.
Page 34
Cal Mode
Gas
> Select
Calibration
Propane
Maintenance Mode
Has
Been
Selected
Data
Review
Test-on-Demand
Select
OKConfig
to Save
System
Select << to Cancel
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
This screen appears if an Infrared Combustible sensor is installed.
Note:
The IR Combustible sensor must be recalibrated if the calibration gas that is
selected is different from the current calibration gas. The IR Combustible
sensor data will be reset and all span calibration information will be set to
default values. Also, the Monitor will restart and go through “Warm Up” for the
sensor.
Using << at this time will cancel this process, return the Monitor to the Select
Cal Gas Screen and restore the previous Cal Gas value. It will not reset the
Monitor.
Select Cal Gas
> Calibration
Mode
Propane
Maintenance
Mode
Has
Been Selected
Data Review
Save
Will Cause
Test-on-Demand
Sensor To Reset
System
Select OKConfig
to Save
Select << To Cancel
4) Select OK to save the new cal gas and reset the Monitor.
3.2.2 Selecting a K-Factor
K-Factors are used for all Combustible sensors to adjust the displayed reading when the target gas is different
from the gas used to calibrate the Monitor.
For example, a Catalytic Bead Combustible sensor which is calibrated using Propane is being used to detect
Hexane. In order for the displayed Hexane concentration to be accurate, a K-Factor must be applied. In this
case the K-Factor for Hexane when calibrated to Propane is 1.23. Or the detected gas level is multiplied by
1.23 before being displayed.
Note:
K-Factors are not applicable when an Infrared Combustible sensor is installed and Methane is used as the
calibration gas.
The examples below will show how to select a K Factor when a Catalytic Bead or Infrared Combustible sensor
is installed.
K-Factor for Catalytic Bead Combustible Sensor
1) Ensure that a Catalytic Bead Combustible sensor is installed.
2) Ensure that “Methane” has been selected as the Calibration Gas.
(See 3.2.1)
3) Gain access to the “Sensor Adjustment” control menu: (3.2.)
Sensor
Adjustment
Mode
> Calibration
Maintenance Mode
Select
Cal Gas
Data Review
> Select K Factor
Test-on-Demand
System Config
4) Use the ▲ and ▼ arrows to move the cursor to “Select K Factor”
5) Select OK.
Document No. 360-0126-01 (Rev. D)
Page 35
SensAlarm Plus – Universal Gas Monitoring System
User Manual
This screen appears and shows that Methane is the selected Calibration Gas.
Also, it has a list of preset K-Factors along with “None” and “Custom K Factor”
Using the << anytime will exit the current routine and restore the initial setting.
Select K Factor
Mode
> Calibration
Cal
Gas Is Methane
Maintenance Mode
None
Hydrogen
Data Review
> Propane
Test-on-Demand
Hexane
System Config
Butane
Custom K Factor
6) Use the ▼ arrow to move the cursor to “Propane”.
7) Select OK.
This screen appears displaying a K-Factor of 1.90 for detecting Propane when
the Calibration gas is Methane.
8) Select OK to save the new K-Factor.
Select K Factor
> Calibration
Mode
Cal
Gas Is Methane
Maintenance Mode
DataPropane
Review
KTest-on-Demand
Factor Is: 1.90
System
Select
OKConfig
to Save
Select << to Cancel
K-Factor for Infrared Combustible Sensor
1) Ensure that an Infrared Combustible sensor is installed.
2) Ensure that Propane has been selected as the Calibration Gas (See 3.2.1.)
3) Gain access to the “Sensor Adjustment” control menu: (3.2.)
4) Use the ▲ and ▼ arrows to move the cursor to “Select K Factor”
Sensor
Adjustment
Mode
> Calibration
Maintenance Mode
Select
Cal Gas
Data Review
> Select K Factor
Test-on-Demand
System Config
5) Select OK.
This screen appears and shows that Propane is the selected Calibration Gas.
Also, it has a list of preset K-Factors along with “None” and “Custom K Factor”
Using the << anytime will exit the current routine and restore the initial setting.
6) Use the ▼ arrow to move the cursor to “Butane”.
7) Select OK.
Page 36
Select K Factor
Mode
> Calibration
Cal
Gas Is Propane
Maintenance Mode
None
Methanol
Data Review
Butadiene
Test-on-Demand
> Butane
System Config
Hexane
Custom K Factor
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
This screen appears displaying a K-Factor of 1.19 for Butane when the
calibration gas is Propane.
8) Select OK to save the new K-Factor.
Select K Factor
> Calibration
Mode
Cal
Gas Is Propane
Maintenance Mode
DataButane
Review
KTest-on-Demand
Factor Is: 1.19
System
Select
OKConfig
to Save
Select << to Cancel
3.2.3 Selecting a Custom K-Factor
Custom K-Factors are applicable to both Catalytic Bead and Infrared Combustible Sensors and they must be
applied if the target gas is not on the list of available preset K-Factors. Additional K-Factors for Catalytic Bead
and Infrared Combustible sensors can be found in their respective Sensor Data sheets. Please consult
Sensidyne Customer Service if a K-Factor is not on the Sensor Data sheet.
Note:
A custom K-factor is not available for Infrared Combustible sensors if the Calibration gas is Methane.
Custom K-Factor for Combustible Sensors
This example will set the K-Factor for detecting Pentane when the Sensor is calibrated with Propane. The KFactor is 1.18 according to the sensor data sheet that came with the sensor.
1) Ensure that a Catalytic Bead Combustible sensor is installed.
2) Ensure that “Propane” has been selected as the Calibration Gas.
(See 3.2.1)
3) Gain access to the “Sensor Adjustment” control menu: (3.2.)
4) Use the ▲ and ▼ arrows to move the cursor to “Select K Factor”
Sensor
Adjustment
Mode
> Calibration
Maintenance Mode
Select
Cal Gas
Data Review
> Select K Factor
Test-on-Demand
System Config
5) Select OK.
This screen appears and shows that Propane is the selected Calibration Gas.
Also, it has a list of preset K-Factors along with “None” and “Custom K Factor”
Using the << anytime will exit the current routine and restore the initial setting.
Select K Factor
Mode
> Calibration
Cal
Gas Is Propane
6) Use the ▼ arrow to scroll to “Custom K Factor”
7) Select OK.
Document No. 360-0126-01 (Rev. D)
Maintenance Mode
None
Hydrogen
Data Review
Methane
Test-on-Demand
Hexane
System Config
Butane
> Custom K Factor
Page 37
SensAlarm Plus – Universal Gas Monitoring System
User Manual
This screen appears displaying a Custom K-Factor when the Calibration gas
is Propane.
Select K Factor
Mode
> Calibration
Cal
Gas Is Propane
8) Use the ▲ and ▼ arrows to adjust the value to 1.18.
Maintenance Mode
Custom
K Factor
Data Review
KTest-on-Demand
Factor Is: 1.18
System
Select
OKConfig
to Save
Select << to Cancel
9) Select OK to save the new Custom K-Factor.
The monitor is now set to accurately detect Pentane when calibrated to
Propane.
Use << to exit the current routine and return to the Main Display.
3.3 ToD Mode Adjustment
This section covers the following Test-On-Demand™ (ToD) Mode adjustment functions.





Enable and disable the automatic testing mode
Set the date & time for testing
Set the number of days between tests
Set the cell intensity,
Designate output & fault indicators
To access the ToD Mode Adjustment Menu,
1) Select OK to display the Main Menu
Main Menu
2) Use the ▲ and ▼ arrows to move the cursor to “System Configuration.”
3) Select OK
Note:
--more-- appears at the bottom when there are additional items scrolling
down, at the top and bottom of the screen when in the middle of the menu and
only at the top when there are additional items scrolling up.
Page 38
> Calibration Mode
Calibration Mode
MaintenanceMode
Mode
Maintenance
DataReview
Review
Data
Test-on-Demand
Test
On Demand
System
Config
> System
Configuration
Lost Password
System Configuration
Mode
> Calibration
Self
Test
Alarm
Settings
Maintenance
Mode
4/20mA
DataAdjustment
Review
Adjust Date/Time
Test-on-Demand
Communication Setup
Config
TODSystem
Mode Adjustment
--more--
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
4) Use the ▲ and ▼ arrows to move the cursor to “ToD Mode Adjustment.”
5) Select OK
System Configuration
Calibration Mode
>--more-Maintenance
Mode
> ToD
Mode Adjustment
Sensor
Adjustment
Data Review
Set
Password
Test-on-Demand
Reset Defaults
System
Config Tag
Set
Transmitter
3.3.1 Auto Mode, Enable/Disable
Auto Mode Enable is a convenient way to automatically perform a Test-OnDemand at regular intervals (e.g., every 7 days).
Note:
When Test-On-Demand is performed automatically and the test fails because
gas is present, system message will appear on the Normal Operation Mode
Display and fault output (if enabled) will appear.
1) Use the ▲ and ▼ arrows to move the cursor to “Auto Mode Enable”
ToD
Mode Adjustment
> Calibration
Mode
> Auto Mode Enable
Maintenance Mode
Test Date/Time
Data
DaysReview
Between Tests
Test-on-Demand
Cell Intensity
System
Config
Output Indicators
2) Select OK
This screen appears and the cursor indicates the current setting of the Auto
Mode.
> Calibration Mode
Auto
Mode Enable
Maintenance
Mode
Data Review
> Disable
Automatic
Test-on-Demand
Enable
SystemAutomatic
Config
3) Use the ▲ and ▼ arrows to move the cursor to “Enable Automatic”
4) Select OK
Use << to exit the current routine and return to the Main Display.
Document No. 360-0126-01 (Rev. D)
> Calibration Mode
Auto
Mode Enable
Maintenance
Mode
Data Review
Disable
Automatic
Test-on-Demand
> Enable
Automatic
System Config
Page 39
SensAlarm Plus – Universal Gas Monitoring System
User Manual
3.3.2 ToD Auto Mode, Test Date/Time
Note:
Auto mode (see 3.3.1) must be enabled before this start time for tests to occur at the date and time set in this
routine. If auto enable is set after the start time has occurred, the start time will be changed to the date/time of
day the auto test was enabled and will repeat at the interval set in the Days
Between Tests routine.
:
To Set the Auto Test Date and Time
ToD
Mode Adjustment
Mode
> Calibration
1) Select a time in the future for the ToD Auto Test
Auto Mode Enable
Maintenance
Mode
> Test Date/Time
Data Review
Days Between Tests
Test-on-Demand
Cell Intensity
System
Config
Output Indicators
2) Access the ToD Mode Adjustment Menu as shown in Section 3.3
3) Use the ▲ and ▼ arrows to move the cursor “Test Date/Time”
4) Select OK.
The following sequence is for MM/DD/YY format and will be slightly different if
the date format is set to DD/MM/YY.
This screen appears for the month of the test.
5) Use the ▲ and ▼ arrows to change the test month.
6) Select OK to bring up the Date screen.
7) Use the ▲ and ▼ arrows to change the test day of the month.
8) Select OK to bring up the test Year screen.
9) Use the ▲ and ▼ arrows to change the test Year.
10) Select OK to bring up the test time Hour screen.
11) Use the ▲ and ▼ arrows to change the Hour of day (24Hr format).
Mode
> Calibration
Adj
Test Date/Time
Maintenance Mode
Data Review
Month
Test-on-Demand
System Config
04/26/06
16:33
12) Select OK to bring up the test time Minute screen.
13) Use the ▲ and ▼ arrows to change the Minutes of the Hour.
14) Select OK to return to the ToD Mode adjustment screen.
If the screen does not change back to ToD Mode Adjustment, make sure that the date or time entered is not
the same or prior to the time of the Monitor system clock. The Month, Date, Year, Hour, and Minutes screens
will continuously cycle until the test date/time has been changed to a date/time occurring in the future.
3.3.3 ToD Auto Mode, Days Between Tests
To Set the Auto Test, Days Between Tests:
1) Access the ToD Mode Adjustment Menu as shown in Section 3.3
2) Use the ▲ and ▼ arrows to move the cursor “Days Between Tests”
ToD
Mode Adjustment
Mode
> Calibration
Auto Mode Enable
Maintenance
Mode
Test Date/Time
Data Review
> Days Between Tests
Test-on-Demand
Cell Intensity
System
Config
Output Indicators
3) Select OK.
Page 40
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
This screen appears showing the current setting for number of days between
tests.
Adjust
Num Of
Days
Mode
> Calibration
4) Use the ▲ and ▼ arrows to change number of days between tests.
5) Select OK
Maintenance Mode
Data Review
04
Test-on-Demand
System Config
Note:
Days between tests will be in effect only when Auto Mode is enabled. Once
enabled, the system will perform the ToD test on the date & time set in the
Test Date/Time menu. The test will be repeated at regular intervals set here.
3.3.4 ToD Mode Adjustment, Cell Intensity
Adjusting the Intensity changes the rate that the gas is produced in the ToD Cell. Higher Intensities create
stronger concentrations of gas. The factory setting is 50% and is normally adequate for most installations.
However, Environmental factors such as wind or humidity may interfere with the sensors ability to detect the
gas. Increasing the Intensity will overcome most of these effects.
1) Access the ToD Mode Adjustment Menu as shown in Section 3.3
2) Use the ▲ and ▼ arrows to move the cursor “Cell Intensity”
3) Select OK.
4) This screen appears showing the current cell intensity. Use the ▲ and ▼
arrows to change the cell intensity.
5) Select OK to save the new value.
Document No. 360-0126-01 (Rev. D)
ToD
Mode Adjustment
Mode
> Calibration
Auto Mode Enable
Maintenance
Mode
Test Date/Time
Data Review
Days Between Tests
>Test-on-Demand
Cell Intensity
System
Config
Output Indicators
Mode
> Calibration
Cell Intensity
Maintenance
Mode
50%
Is Nominal
Data
Review
Intensity
100%
Test-on-Demand
UP = Increase
System
Config
DOWN
= Decrease
Page 41
SensAlarm Plus – Universal Gas Monitoring System
User Manual
3.3.5 ToD Mode Adjustment, Output Indicators
There are “Output Indicators” that allow the Automatic Mode Test-On-Demand Activity to be monitored. Auto
Mode must be enabled for this to function.
To change the Output Indicators:
ToD
Mode Adjustment
> Calibration
Mode
1) Access the ToD Mode Adjustment Menu as shown in Section 3.3.
Auto Mode Enable
Maintenance
Mode
Test Date/Time
Data Review
Days Between Tests
Test-on-Demand
Cell Intensity
Config
>System
Output Indicators
2) Use the ▲ and ▼ arrows to move the cursor to “Output Indicators”.
3) Select OK.
4) This screen appears showing the current output indicator, in this case
“None” where the 4-20mA levels will remain at nominal baseline levels
during the Auto Mode ToD Cell Test.
WARNING: In this setting the sensor output is being held low and will
not respond to the actual target gas if present during the test. The 420mA signal loop will return to normal operation after the test finishes
successfully.
Calibration
Mode
>Output
Indicators
Maintenance Mode
> None
Data Review
4-20
Current Loop
Test-on-Demand
System Config
Using the << anytime will exit the current routine and restore the initial
setting.
5) Use the ▲ and ▼ arrows to move the cursor to “4-20 Current Loop”.
This setting allows the 4-20mA levels to track the gas concentration
during the Auto Mode ToD Cell Test.
6) Select OK to save.
WARNING: In this setting the sensor output is being allowed to respond to the ToD gas level. The 4-20mA
signal loop will indicate the detected concentration and return to normal operation after the test finishes
successfully.
Using the << anytime will exit the current routine and restore the initial setting.
Page 42
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
4 Alarms, Faults and Relays
There are 4 Alarm levels that can be configured. See section 4.1 for detailed instructions. They are.

Alarm 1- The lowest level alarm also referred to as “LO” Alarm

Alarm 2- The middle level alarm also referred to as “HI” Alarm

Alarm 3- The highest alarm level also referred to as “HI-HI” alarm

TWA Alarm- A Time Weighted Average alarm level.
There are 9 Faults which can be configured. See section 4.2 for detailed instructions. They are:

Head Fail- Indicates the loss of communication with the Sensor Interface.

Missing Sensor- Indicates loss of communication to a sensor or a Sensor is not installed.

Sensor Fail- Indicates an unexpected sensor output.

Sensor End Of Life- Heralds the end of a typical sensor life-span.

Output Current Track- Indicates an unexpected output current.

Calibration Mode- Settings for output indications during calibration.

Maintenance Mode- Settings for output indications during maintenance.

ToD Fail- Indicates that a Test on Demand failed to excite the sensor.

ToD End of Life- Heralds the end of a typical ToD life-span.
There are 8 Relays which can be assigned to many of the alarms or faults. See section 4.3 for detailed
instructions. They are:

Relay 1 Fail (Main PCA TB4)- This relay is set at the factory to be normally energized and is
typically used to indicate power failure at the Monitor. It can be re-associated with any Alarm or
Fault.

Relay 2 (Main PCA TB5) - This relay is set at the factory to be normally de-energized and can be
associated with any Alarm or Fault.

Relay 3 (Main PCA TB6) - This relay is set at the factory to be normally de-energized and can be
associated with any Alarm or Fault.

Relay 4 (Main PCA TB7) - This relay is set at the factory to be normally de-energized and can be
associated with any Alarm or Fault.

Relay 5 (Warning Current) - Not actually a physical relay. This indicator can only be associated with
Alarms. It is used to set the 4-20mA output to the predefined output level when an associated
alarm occurs.

Relay 6 (Horn) - This relay is set at the factory to be normally de-energized and can be associated
with any Alarm or Fault

Relay 7 (Red Strobe)- This relay is set at the factory to be normally de-energized and can be
associated with any Alarm or Fault

Relay 8 (Amber Strobe) - This relay is set at the factory to be normally de-energized and can be
associated with any Alarm or Fault
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
4.1 Alarms
Alarms are indications of important detected levels of the target gas. This control is used to configure setting
for each alarm.
To configure an alarm:
Main Menu
1) Select OK to bring up the main menu.
2) Use the ▲ and ▼ arrows to move the cursor to “System Configuration”.
3) Select OK.
> Calibration Mode
Calibration Mode
MaintenanceMode
Mode
Maintenance
Data
Review
Data Review
Test-on-Demand
Test
On Demand
System
Config
> System
Configuration
Lost Password
System Configuration
> Calibration Mode
--more-Maintenance
Mode
> Alarm
Settings
4/20mA
DataAdjustment
Review
Adjust
Date/Time
Test-on-Demand
Communication Setup
System
Config
TOD Mode Adjustment
--more--
4) Use the ▲ and ▼ arrows to move the cursor to “Alarm Settings”.
5) Select OK.
6) The first screen to appear should be “Alarm Functions”, if not use the ▲
and ▼ arrows to change to the “Alarm Functions” screen.
7) Select OK.
Alarm Settings
> Calibration Mode
Maintenance
Mode
Alarm
Functions
Data Review
Test-on-Demand
Use
Up Down For
System
Config
Next Selection
Select OK To Continue
8) This screen appears displaying the four alarm selections. Use the ▲ and
▼ arrows to move the cursor to the desired alarms. They are:

Alarm 1- The lowest level alarm also referred to as “LO” Alarm

Alarm 2- The middle level alarm also referred to as “HI” Alarm

Alarm 3- The highest alarm level also referred to as “HI-HI” alarm

TWA Alarm- A Time Weighted Average alarm level.
Alarm Functions
> Calibration Mode
> Alarm 1
Maintenance
Mode
Alarm
2
Data3Review
Alarm
TWA
Alarm
Test-on-Demand
System Config
Select OK to Change
9) Select OK.
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Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Alarm Configuration Screen
This screen represents the current configuration settings for each of the
alarms.
The First line indicates which alarm is being set.
The second line indicates which relays are assigned to the Alarm. They
appear as single digits in sequence from 1 to 8. In this case, only relay 2
has been assigned.
Add Relay- Assign any of the relays to the Alarm.
Delete Relay- Remove any of the relays from the Alarm.
Alarm 1
> Calibration
Mode 2
Relays
Assigned
Maintenance
Mode
> Add
Relay
Delete
Data Relay
Review
Enabled
Test-on-Demand
Ascending
System Config
Setpoint
Release Offset
Enabled or Disabled- The current state is shown on this screen. Enabling an
alarm allows it to function. Disabling will not allow function.
Ascending or Descending- The current state is shown on this screen. Ascending alarms activate when
levels rise above the set point, Descending alarms activate when levels fall below the set point. i.e. Toxic
sensors are typically set to have ascending alarms whereas Ambient Oxygen Sensors are set to have
Descending alarms.
Set point- This is the threshold value for the alarm to activate.
Release Offset- Not available for TWA Alarm, This is the distance from the alarm level before the alarm will
reset. (If non-latching).
TWA Time Adjust- Only available for TWA Alarm. It is the time period for the average.
4.1.1 Add a Relay
1) Use the ▲ and ▼ arrows to move the cursor to “Add Relay”.
2) Select OK.
3) Use the ▲ and ▼ arrows to change the screens until the desired Relay is
displayed.
Sequence of Screens and Relays available:
Relay 1 – Fail
Relay 2
Relay 3
Relay 4
Warn Current – Relay 5
Horn – Relay 6
Red Strobe – Relay 7
Amber Strobe – Relay 8
Alarm 1
> Calibration
Relays
Assigned Mode
2
Maintenance Mode
3
Data Relay
Review
Test-on-Demand
Use Up Down For
System
Config
Next Selection
Select OK To Add
4) For this example, pick relay 3.
5) Select OK to add the relay.
Line 2 on this screen shows that Relay 3 has been added.
6) When finished adding relays select << to return to the Alarm menu screen.
Alarm 1
> Calibration
Relays
Assigned Mode
23
Maintenance Mode
3
Data Relay
Review
Test-on-Demand
Use Up Down For
System
Config
Next Selection
Select OK To Add
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
4.1.2 Delete a Relay
1) Use the ▲ and ▼ arrows to move the cursor to “Delete Relay”.
2) Select OK.
Alarm 1
> Calibration
Mode 23
Relays
Assigned
Maintenance
Mode
Add
Relay
> Delete
Data Relay
Review
Enabled
Test-on-Demand
Ascending
System Config
Setpoint
Release Offset
3) To Delete a Relay. Use the ▲ and ▼ arrows to change the screens until
the desired Relay is displayed.
Sequence of Screens and Relays available:
Alarm 1
> Calibration
Relays
Assigned Mode
23
Relay 1 – Fail
Relay 2
Relay 3
Relay 4
Warn Current – Relay 5
Horn – Relay 6
Red Strobe – Relay 7
Amber Strobe – Relay 8
Maintenance Mode
3
Data Relay
Review
Test-on-Demand
Use Up Down For
System
Config
Next Selection
Select OK To Add
4) For this example, pick relay 3.
5) Select OK to delete the relay.
Alarm 1
> Calibration
Relays
Assigned Mode
2
Line 2 on this screen shows that Relay 3 has been deleted.
Maintenance Mode
Relay
1 - Fail
Data
Review
Test-on-Demand
Use Up Down For
System
Config
Next Selection
6) When finished deleting relays select << to return to the Alarm menu
screen.
Select OK To Add
4.1.3 Enable or Disable an Alarm
The current state is shown on this screen. Enabling an alarm allows it to
function. Disabling will not allow function.
1) Use the ▲ and ▼ arrows to move the cursor to “Enabled or Disabled”
2) Select OK.
Page 46
Alarm 1
> Calibration
Mode 2
Relays
Assigned
Maintenance
Mode
Add
Relay
Delete
Data Relay
Review
> Enabled
Test-on-Demand
Ascending
System Config
Setpoint
Release Offset
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
3) To change and save the state to the displayed setting, Select OK.
Alarm 1
Using the << anytime will exit the current routine and restore the initial setting.
> Calibration Mode
Maintenance Mode
Disabled
Data
Review
Test-on-Demand
System Config
Select OK to Save
4.1.4 Ascending or Descending alarm threshold
The current state is shown on this screen. Ascending alarms activate when
levels rise above the set point, Descending alarms activate when levels fall
below the set point. i.e. Toxic sensors are typically set to have ascending
alarms whereas Ambient Oxygen Sensors are set to have Descending
alarms.
1) Use the ▲ and ▼ arrows to move the cursor to “Ascending or Descending”
2) Select OK.
Alarm 1
> Calibration
Mode 2
Relays
Assigned
Maintenance
Mode
Add
Relay
Delete
Data Relay
Review
Enabled
Test-on-Demand
> Ascending
System Config
Setpoint
Release Offset
Using the << anytime will exit the current routine and restore the initial setting.
Alarm 1
3) To change and save the state to the displayed setting, Select OK.
> Calibration Mode
Maintenance Mode
Descending
Data
Review
Test-on-Demand
System Config
Select OK to Save
4.1.5 Alarm Setpoint
The alarm set point is the threshold value for the alarm to activate.
Alarm 1
> Calibration
Mode 2
Relays
Assigned
1) Use the ▲ and ▼ arrows to move the cursor to “Setpoint”
2) Select OK.
Document No. 360-0126-01 (Rev. D)
Maintenance
Mode
Add
Relay
Delete
Data Relay
Review
Enabled
Test-on-Demand
Ascending
System Config
> Setpoint
Release Offset
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
This screen displays the current set point in units detected.
3) Use the ▲ and ▼ arrows to change the value of the alarm set point in units
detected.
Using the << anytime will exit the current routine and restore the initial
setting.”
Alarm 1
Mode
> Calibration
Setpoint
Maintenance Mode
Data 10
Review
PPM
Test-on-Demand
Select OK to Save
System
Config
UP = Increase
DOWN = Decrease
4) Select OK to save the new set point.
4.1.6 Release Offset
The Release Offset applies to Alarms 1, 2 and 3 only.
The release offset is the level the displayed amount must differ from the set
point for the alarm to reset (if non-latching). For ascending alarms it is a value
below the set point, for descending alarms it is a value above the set point.
Alarm 1
> Calibration
Mode 2
Relays
Assigned
Maintenance
Mode
Add
Relay
Delete
Data Relay
Review
Enabled
Test-on-Demand
Ascending
System Config
Setpoint
> Release Offset
1) Use the ▲ and ▼ arrows to move the cursor to “Release Offset”
2) Select OK.
This screen displays the current release offset in units detected.
Alarm 1
3) Use the ▲ and ▼ arrows to change the value of the release offset.
CalibrationOffset
Mode
> Release
Maintenance Mode
Data Review
3 PPM
Test-on-Demand
Select OK to Save
System
Config
UP = Increase
DOWN = Decrease
Using the << anytime will exit the current routine and restore the initial
setting.”
4) Select OK to save the new value.
4.1.7 TWA Average Time Adjustment
The Time Weighted Average alarm has the majority of configuration settings
found on alarms 1, 2 and 3. It does not have a release offset adjustment.
Instead, it has an Average Time Adjustment. For this alarm, the time period
used for the average can be set to one of six preset values.
Alarm Functions
To adjust the Average Time:
1) Access the Alarm Function menu described in 4.1
2) Use the ▲ and ▼ arrows to move the cursor to”TWA Alarm”.
3) Select OK.
Page 48
> Calibration
Mode
Alarm
1
Maintenance
Mode
Alarm
2
Alarm
Data3Review
> TWA
Alarm
Test-on-Demand
System Config
Select OK to Change
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
TWA Alarm
Mode 4
> Calibration
Relays
Assigned
4) Use the ▲ and ▼ arrows to move the cursor to”Average Time Adjust”.
5) Select OK.
Add
Relay
Maintenance
Mode
Delete
Data Relay
Review
Enabled
Test-on-Demand
Ascending
System Config
Setpoint
> Average Time Adjust
This screen shows the available time periods and the curser adjacent to the
current setting.
6) Use the ▲ and ▼ arrows to move the cursor to the new desired time
period.
15 Minutes, 30 Minutes, 60 Minutes, 2 Hours, 4 Hours or 8 Hours
Using the << anytime will exit the current routine and restore the initial setting.
TWA Alarm
> Calibration
Average
TimeMode
Adjust
15Maintenance
Minutes
Mode
30Data
Minutes
Review
60 Minutes
Test-on-Demand
2 Hours
System Config
4 Hours
> 8 Hours
7) Select OK to save the new setting.
4.2 Fault Functions
The SensAlarm PLUS control system is constantly assessing the internal operation of the monitor. Several
critical functions are monitored constantly and can be assigned an indicator to announce the occurrence of a
system fault.
To configure a fault:
1) Select OK to bring up the main menu.
2) Use the ▲ and ▼ arrows to move the cursor to “System Configuration”.
3) Select OK.
4) Use the ▲ and ▼ arrows to move the cursor to “Fault Functions”.
5) Select OK.
There are 9 Faults which can be configured using this control. They are:
1. Head Fail- Indicates the loss of communication with the Sensor
Interface. Factory assigned to ”Relay 1 – Fail”
2. Missing Sensor- Indicates loss of communication to a sensor or a
sensor is not installed. Factory assigned to ”Relay 1 – Fail”
3. Sensor Fail- Indicates an unexpected sensor output. Factory
assigned to ”Relay 1 – Fail”
4. Sensor End Of Life- Heralds the end of a typical sensor life-span.
Not assigned to any relays at the factory.
Fault Functions
> Calibration
Mode
> Head
Fail
Maintenance
Missing
SensorMode
Sensor
Fail
Data Review
Sensor
End Of Life
Test-on-Demand
Output Current Track
System Config
Calibration
Mode
--more--
5. Output Current Track- Indicates an unexpected output current.
Not assigned to any relays at the factory.
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
6. Calibration Mode- Settings for output indications during calibration.
Assigned Relays will transition during Calibration when enabled.
Not assigned to any relays at the factory.
7. Maintenance Mode- Settings for output indications during
maintenance. Assigned Relays will transition during Maintenance
Mode when enabled. Not assigned to any relays at the factory
8. ToD Fail- Indicates that a Test on Demand failed to excite the
sensor. Not assigned to any relays at the factory.
Fault Functions
> Calibration Mode
--more—
Maintenance
Mode
Maintenance
Mode
ToDData
Fail Review
ToDTest-on-Demand
End of Life
System Config
9. ToD End of Life- Heralds the end of a typical ToD life-span. Not
assigned to any relays at the factory.
Fault Configuration Screen
This screen represents the current configuration settings for each of the faults.
The First line indicates which fault is being set.
The second line indicates which relays are assigned to the Fault. They appear
as single digits in sequence from 1 to 8. In this case, only relay 1 has been
assigned.
Add Relay- Assign any of the relays to the Fault.
Delete Relay- Remove any of the relays from the Fault.
Enabled or Disabled- The current state is shown on this screen. Enabling a
fault allows it to function. Disabling will not allow function.
Head Fail
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
Adj Fault Current - The fault current is a specific 4-20 signal between 1 and
4mA. Each Fault can be assigned a separate current level allowing remote identification of the specific fault. If
multiple faults occur, only the lowest current value is indicated.
Adj Current Delay- The current delay is a time setting for the low current output of the fault from 1 to 240
seconds. (Only available on Sensor End of Life, Output Current Track, ToD Fail and ToD End of Life).
4.2.1 Add a Relay
Refer to section 4.1.1 for adding relays to faults. (Relay 5 Warning Current is not available for system faults. It
is actually the fault current.)
Sequence of Screens and Relays available:
Relay 1 – Fail
Relay 2
Relay 3
Relay 4
Horn – Relay 6
Red Strobe – Relay 7
Amber Strobe – Relay 8
4.2.2 Delete a Relay
Refer to section 4.1.2 for deleting relays from faults. (Relay 5 Warning Current is not available for system
faults. It is actually the fault current.)
Sequence of Screens and Relays available:
Relay 1 – Fail
Relay 2
Relay 3
Relay 4
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Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
Horn – Relay 6
Red Strobe – Relay 7
Amber Strobe – Relay 8
4.2.3 Enable or Disable a Fault
Refer to section 4.1.3 for enabling or disabling a fault. The current state is shown on the Fault Configuration
screen. Enabling allows the fault to function normally and activate the associated configuration settings.
Disabling the Fault does not allow function even if the system fault occurs.
4.2.4 Adjust Fault Current
The Fault Current for each Fault Function can be individually set between 1
and 4mA at 0.05mA steps.
NOTE: If multiple Faults occur, the Fault with lowest current setting takes
precedence.
For this example The Head Fail Fault Current will be adjusted to 2.30mA
1) Gain access to the first Head Fail, Fault Function screen.
Head Fail
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
> Adj Fault Current
2) Use the ▼ arrow to move the cursor to “Adj Fault Current”. Select OK.
3) This screen appears showing the present Fault Current Value. Use the
▲and ▼arrows to adjust the fault current in 0.05 mA steps to be 2.30.
Using the << anytime will exit the current routine and restore the initial setting.
4) Select OK to save the new value
Head Fail
> Calibration Mode
Adj Fault Current
Maintenance Mode
Data Review
2.30
Test-on-Demand
Select OK To Save
System
Config
UP = Increase
Down = Decrease
4.2.5 Adjust Fault Current Delay
Only available for the following Fault Functions:
1) Sensor End of Life
2) Output Current Track
3) ToD Fail
4) ToD End of Life.
The Adjust Current Delay routine is used to change the fault current delay for
the specific Fault Function. The Delay can be set from 0 to 300 seconds.
In this example, The Sensor End Of Life, Fault Function, Current Delay will be
set to 15 Seconds. When a Sensor End of Life fault occurs the 4-20mA
output current will drop to the specified current level for 15 seconds each hour
until the Fault is cleared.
Sensor
End of Life
> Calibration Mode
Relays
Assigned
1
Maintenance Mode
Data
Review
Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
> Adj Current Delay
1) Gain access to the Sensor End Of Life Fault Function screen.
2) Use the ▼arrow to move the cursor to “Adj Current Delay” and select OK
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3) This screen appears showing the present Current Delay Value for the
displayed fault. Use the ▲and ▼arrows to adjust the fault current in 1
second steps to be 15. When finished adjusting the value select OK to save
the new value.
Sensor
End of Life
> Calibration Mode
Adj
Current
Delay
Maintenance Mode
Data Review
15
Test-on-Demand
Select OK To Save
System
Config
UP = Increase
Down = Decrease
4.3 Warn Current – Relay 5
The Warn Current-Relay 5 is a warning function that drops the 4-20 mA
output to the Fault Current Level when an assigned alarm condition occurs. It
does not actually have a mechanical relay.
1) Follow Section Error! Reference source not found. steps 1 through 5.
2) Use the ▲ and ▼ arrows to change to the “Warn Current-Relay5” screen.
3) Select OK.
Alarm Settings
> Calibration Mode
Maintenance
Mode
Warn
Current-Relay5
Data Review
Test-on-Demand
Use
Up Down For
Next Selection
System
Config
Select OK To Continue
4.3.1 Warn Current-Relay 5, Latching/Non-Latching
The latching feature causes the warning to persist after the alarm condition
has subsided. Latched warnings must be reset manually.
Warn Current-Relay5
1) Access the Warn Current – Relay 5 Menu
> Calibration Mode
Maintenance Mode
> Non-Latching
Enabled
Data Review
Low
Current Time Adj
Test-on-Demand
System Config
Select OK to Change
The following screen has the current state displayed.
Notice that the cursor is indicating that Non-Latching is selected.
2) Select OK.
This screen shows that the Warn Current-Relay 5 will be changed to
Latching.
Warn Current-Relay5
3) To change the status, select OK.
“Latching“ should be in the list of options the next time the Warn Current
Relay 5 Menu is accessed,
Page 52
> Calibration Mode
Maintenance Mode
Latching
Data
Review
Test-on-Demand
System Config
Select OK to Save
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
4.3.2 Warn Current – Relay 5, Enable or Disable
To Enable or Disable the Warning Current:
1) Access the Warn Current – Relay 5 Menu.
The following screen will be displayed. Notice that the cursor is indicating
that Disabled is selected.
2) Use the ▼arrow to move the cursor to Either Disabled or Enabled
(depending on the current state of the relay).
3) Select OK.
Warn Current-Relay5
> Calibration Mode
Maintenance Mode
Non-Latching
> Disabled
Data Review
Low
Current Time Adj
Test-on-Demand
System Config
Select OK to Change
Note: Using the << anytime will exit the current routine and restore the initial
setting.”
This screen shows that the Warn Current-Relay 5 will be changed to
‘Enabled”
4) To change the status, select OK.
“Enabled“ should be in the list of options the next time the Warn Current
Relay 5 Menu is accessed.
Warn Current-Relay5
> Calibration Mode
Maintenance Mode
Enabled
Data
Review
Test-on-Demand
System Config
Select OK to Save
4.3.3 Low Current Time Adjust
The Low Current Time Adjust refers to the amount of time the Warn Current
Adjust-Relay 5 remains at the Fault Current level when an Alarm condition
occurs. The time delay can be set at one second intervals between 1 and
240 Seconds.
1) To adjust the Low Current Time Delay, use the ▼ arrow to move the
cursor to “Low Current Time Adj”
2) Select OK.
Warn Current-Relay5
> Calibration Mode
Maintenance Mode
Non-Latching
Disabled
Data Review
> Low
Current Time Adj
Test-on-Demand
System Config
Select OK to Change
Note: Using the << anytime will exit the current routine and restore the initial
setting.
3) This screen appears showing the present Low Output Current Time Delay.
Use the ▲ and ▼ arrows to adjust the time delay.
4) When finished select OK to save the new value.
Document No. 360-0126-01 (Rev. D)
Warn
Current-Relay5
Mode
> Calibration
Low
Output
Current
Maintenance
Mode
Delay
Seconds
Data020
Review
UP = Increase
Test-on-Demand
DOWN
= Decrease
System
Select
OKConfig
to Save
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SensAlarm Plus – Universal Gas Monitoring System
User Manual
4.4 Relay 1-Fail, Relay 2, Relay 3, Relay 4
The following settings apply to all four of the mechanical Relays:



Latching/Non-latching
Energized/De-Energized
Time Delay
Relay 1 - Fail is set at the factory to be non-latching, normally energized with
a time delay of 10 seconds. All other relays are set at the factory to be nonlatching, normally de-energized with a time delay of 10 seconds.
The following example is for
Relay1 – Fail, and is applicable for all other Relays.
1) Follow Section Error! Reference source not found. steps 1 through 5.
2) Use the ▲ and ▼ arrows to change to the “Relay 1 - Fail” screen.
Alarm Settings
> Calibration Mode
Maintenance
Mode
Relay 1 - Fail
Data Review
Test-on-Demand
Use
Up Down For
Next Selection
System
Config
Select OK To Continue
3) Select OK.
4.4.1 Latching or Non-Latching
The latching feature causes the warning to persist after the alarm condition
has subsided. This is indicated when the LED associated with the “latched”
relay remains lit. The relay must be manually deactivated (reset) by selecting
<< from the Normal Operation Display screen or Red reset switch located at
the bottom on the enclosure.
A non-latching relay will automatically reset (deactivate) when the condition
no longer exists.
1) This screen shows that Relay 1 is currently Non-Latching. To change the
status, make sure that the cursor is at Non-Latching (or Latching). If not use
the ▲ and ▼ arrows move the cursor to indicate Non-Latching (or Latching)
2) Select OK.
Note: Using the << anytime will exit the current routine and restore the initial
setting.
3) This screen appears showing that Relay 1 is now Latching.
4) Select OK to save the change.
Relay 1 - Fail
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataEnergized
Review
Time
Delay
Test-on-Demand
System Config
Select OK to Change
Relay 1 - Fail
> Calibration Mode
Maintenance Mode
Latching
Data
Review
Test-on-Demand
System Config
Select OK to Save
4.4.2 Norm Energized/ Norm De-Energized
This feature sets the relay to be either Normally Energized or Normally De-Energized. Relay1-Fail is set from
the factory to be Normally Energized which causes it to change state when power is removed from the
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Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
Monitor. All other Relays are factory set to be Normally De-Energized and they do not change state when
power is removed from the monitor.
This screen shows that Relay 1 is currently Normally Energized.
To change the status:
1) Make sure that the curser is at Norm Energized (or De-Energized). If not
use the ▲ and ▼ arrows move the cursor to indicate Norm Energized (or
De-Energized).
2) Select OK.
Relay 1 - Fail
> Calibration Mode
Maintenance Mode
Non-Latching
> Norm
DataEnergized
Review
Time
Delay
Test-on-Demand
System Config
Select OK to Change
Note: Using the << anytime will exit the current routine and restore the initial
setting.
3) This screen appears showing that Relay 1 is now Norm Energized (or
De-Energized).
Note: Using the << anytime will exit the current routine and restore the initial
setting.
Relay 1 - Fail
> Calibration Mode
Maintenance Mode
Norm
DataDe-energized
Review
Test-on-Demand
System Config
Select OK to Save
4) Select OK to save the change.
4.4.3 Time Delay
The time delay is the amount of time that the relay activation is delayed after
the initiation of either an alarm or fault. It can be set from 1 to 240 seconds. A
time delay is typically set when the user does not want the relay to activate
external strobes or horns for intermittent, transient gas spikes at lower
concentrations.
To adjust the Time Delay:
1) Access the relay settings screen.
Relay 1 - Fail
> Calibration Mode
Maintenance Mode
Non-Latching
DataEnergized
Review
Norm
> Time
Delay
Test-on-Demand
System Config
Select OK to Change
2) Make sure that the cursor is at “Time Delay”. If not use the ▲ and ▼
arrows to move the cursor
3) Select OK.
This screen shows the current setting.
4) Use the ▲ and ▼ arrows to change the value of the time delay.
Note: Using the << anytime will exit the current routine and restore the initial
setting.
5) Select OK to save the new setting.
Document No. 360-0126-01 (Rev. D)
Relay 1 - Fail
Mode
> Calibration
Time
Delay Adjust
Maintenance
Mode
Delay
Seconds
Data003
Review
UP = Increase
Test-on-Demand
DOWN
= Decrease
System
Select
OKConfig
to Save
Page 55
SensAlarm Plus – Universal Gas Monitoring System
User Manual
4.5 Horn – Relay 6
The Internal Horn (or sounder) is located on the bottom of the enclosure. The sounder can be silenced with a
red pushbutton switch. The alarm reset conforms to ISA alarm sequence 3A.
The available configuration settings are:




Latching/Non-latching
Timeout (Enabled/Disabled)
Time Delay
Timeout Delay
Relay 6 Horn is set at the factory to be non-latching, Timeout disabled, time
delay of 10 seconds, and the Timeout delay at 240 seconds.
Alarm Settings
> Calibration Mode
Maintenance
Horn – RelayMode
6
Data Review
Test-on-Demand
Use
Up Down For
Next Selection
System
Config
Select OK To Continue
1) Follow Section Error! Reference source not found. steps 1 through 5.
2) Use the ▲ and ▼ arrows to change to the “Horn – Relay 6” screen.
3) Select OK.
4.5.1 Latching or Non-Latching
The latching feature causes the warning to persist after the alarm condition
has subsided. The horn must be manually deactivated (reset) by selecting
<< from the Normal Operation Display screen or Red reset switch located at
the bottom on the enclosure.
A non-latching horn will automatically reset (deactivate) when the condition
no longer exists.
1) This screen shows that Horn is currently Non-Latching. To change the
status, make sure that the cursor is at Non-Latching (or Latching). If not use
the ▲ and ▼ arrows move the cursor to indicate Non-Latching (or Latching)
2) Select OK.
Horn – Relay 6
> Calibration Mode
> Non-Latching
Maintenance Mode
Timeout
Disabled
Data Review
Time Delay
Test-on-Demand
Timeout Delay
System Config
Select OK To Change
Note: Using the << anytime will exit the current routine and restore the initial
setting.
Horn – Relay 6
> Calibration Mode
Maintenance Mode
Latching
Data
Review
Test-on-Demand
System Config
Select OK to Save
3) This screen appears showing that Horn is now Latching.
4) Select OK to save the change.
4.5.2 Timeout (Enabled/Disabled)
The timeout feature causes the Horn to silence after a predetermined time
set in the Timeout Delay menu. The alarm condition has to subside to reset
the timeout.
1) This screen shows that the Horn timeout is currently disabled. To change
the status, make sure that the cursor is at Timeout Disabled (or Timeout
Enabled). If not use the ▲ and ▼ arrows move the cursor to indicate
Timeout Disabled (or Timeout Enabled).
Horn – Relay 6
> Calibration Mode
Non-Latching
Maintenance Mode
> Timeout
Disabled
Data Review
Time Delay
Test-on-Demand
Timeout Delay
System Config
Select OK To Change
2) Select OK.
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Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Note: Using the << anytime will exit the current routine and restore the initial
setting.
3) This screen appears showing that the Horn timeout is enabled.
4) Select OK to save the change.
Horn – Relay 6
> Calibration Mode
Maintenance Mode
Timeout
Enabled
Data Review
Test-on-Demand
System Config
Select OK to Save
4.5.3 Time Delay
The time delay is the amount of time that the horn activation is delayed after
the initiation of an assigned alarm or fault. It can be set from 1 to 240
seconds.
To adjust the Time Delay:
1) Access the relay settings screen.
2) Make sure that the cursor is at “Time Delay”. If not use the ▲ and ▼
arrows to move the cursor
Horn – Relay 6
> Calibration Mode
Non-Latching
Maintenance Mode
Timeout
Disabled
Data Review
> Time Delay
Test-on-Demand
Timeout Delay
System Config
Select OK To Change
3) Select OK.
This screen shows the current setting.
4) Use the ▲ and ▼ arrows to change the value of the time delay.
Note: Using the << anytime will exit the current routine and restore the initial
setting.
5) Select OK to save the new setting.
Relay 1 - Fail
Mode
> Calibration
Time
Delay Adjust
Maintenance
Mode
Delay
Seconds
Data003
Review
UP = Increase
Test-on-Demand
DOWN
= Decrease
System
Select
OKConfig
to Save
4.5.4 Timeout Delay
The Timeout Delay is the amount of time that the horn is active if Timeout is
enabled after the initiation of an assigned alarm or fault. It can be set from 1
to 240 seconds.
Horn – Relay 6
To adjust the Time Delay:
1) Access the relay settings screen.
2) Make sure that the cursor is at “Timeout Delay”. If not use the ▲ and ▼
arrows to move the cursor
> Calibration Mode
Non-Latching
Maintenance Mode
Timeout
Disabled
Data Review
Time Delay
Test-on-Demand
> Timeout Delay
System Config
Select OK To Change
3) Select OK.
Document No. 360-0126-01 (Rev. D)
Page 57
SensAlarm Plus – Universal Gas Monitoring System
User Manual
This screen shows the current setting.
4) Use the ▲ and ▼ arrows to change the value of the time delay.
Note: Using the << anytime will exit the current routine and restore the initial
setting.”
5) Select OK to save the new setting.
Horn – Relay 6
Mode
> Calibration
Timeout Adjust
Maintenance Mode
Timeout
240 Seconds
Data Review
Test-on-Demand
UP = Increase
System
Config
DOWN = Decrease
Select OK to Save
4.6 Red Strobe - Relay7, Amber
Strobe-Relay8
The following settings apply to both the Red Strobe and optional Amber Strobe
:

Latching/Non-latching

Energized/De-Energized

Time Delay
Red Strobe and optional Amber Strobe are set at the factory to be nonlatching, normally de-energized with a time delay of 10 seconds.
The following example is for
Red Strobe – Relay7, and is applicable to the Amber Strobe.
Alarm Settings
> Calibration Mode
Maintenance
Mode
Red
Strobe – Relay7
Data Review
Test-on-Demand
Use
Up Down For
Next Selection
System
Config
Select OK To Continue
1) Follow Section Error! Reference source not found. steps 1 through 5.
2) Use the ▲ and ▼ arrows to change to the “Red Strobe – Relay7” screen.
3) Select OK.
4.6.1 Latching or Non-Latching
The latching feature causes the warning to persist after the alarm condition
has subsided. The strobe must be manually deactivated (reset) by selecting
<< from the Normal Operation Display screen or pressing the Red reset
switch located at the bottom on the enclosure.
A non-latching strobe will automatically reset (deactivate) when the condition
no longer exists.
1) This screen shows that the Red Strobe is currently Non-Latching. To
change the status, make sure that the cursor is at Non-Latching (or
Latching). If not use the ▲ and ▼ arrows move the cursor to indicate NonLatching (or Latching)
2) Select OK.
Note: Using the << anytime will exit the current routine and restore the initial
setting.
Page 58
Red Strobe – Relay7
> Calibration Mode
Maintenance Mode
> Non-Latching
DataDe-Energized
Review
Norm
Time
Delay
Test-on-Demand
System Config
Select OK to Change
Red Strobe – Relay7
> Calibration Mode
Maintenance Mode
Latching
Data Review
Test-on-Demand
System Config
Select OK to Save
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
3) This screen appears showing that Relay 1 is now Latching.
4) Select OK to save the change.
4.6.2 Norm Energized/ Norm De-Energized
This feature sets the strobe to be either Normally Energized (On) or
Normally De-Energized (Off). Strobes are factory set to be Normally DeEnergized (Off).
To change the status:
1) Make sure that the curser is at Norm De-Energized (or Energized). If not
use the ▲ and ▼ arrows move the cursor to indicate Norm De-Energized
(or Energized).
2) Select OK.
Red Strobe – Relay7
> Calibration Mode
Maintenance Mode
Non-Latching
DataDe-Energized
Review
> Norm
Time
Delay
Test-on-Demand
System Config
Select OK to Change
Note: Using the << anytime will exit the current routine and restore the initial
setting.
3) This screen appears showing that Relay 1 is now Norm Energized (or
De-Energized).
Note: Using the << anytime will exit the current routine and restore the initial
setting.
4) Select OK to save the change.
Red Strobe – Relay7
> Calibration Mode
Maintenance Mode
Norm Energized
Data Review
Test-on-Demand
System Config
Select OK to Save
4.6.3 Time Delay
The time delay is the amount of time that the strobe activation is delayed after
the initiation of either an assigned alarm or fault. It can be set from 1 to 240
seconds. A time delay is typically set when the user does not want the strobe
to activate for intermittent, transient gas spikes at lower concentrations.
To adjust the Time Delay:
1) Access the strobe settings screen.
2) Make sure that the cursor is at “Time Delay”. If not use the ▲ and ▼
arrows to move the cursor
Red Strobe – Relay7
> Calibration Mode
Maintenance Mode
Non-Latching
DataEnergized
Review
Norm
> Time
Delay
Test-on-Demand
System Config
Select OK to Change
3) Select OK.
This screen shows the current setting.
4) Use the ▲ and ▼ arrows to change the value of the time delay.
Note: Using the << anytime will exit the current routine and restore the initial
setting.
5) Select OK to save the new setting.
Document No. 360-0126-01 (Rev. D)
Red Strobe – Relay7
> Calibration Mode
Time Delay Adjust
Maintenance Mode
Delay
003 Seconds
Data
UP =Review
Increase
Test-on-Demand
DOWN
= Decrease
Select
OKConfig
to Save
System
Page 59
SensAlarm Plus – Universal Gas Monitoring System
User Manual
5 Menu Structure & Map
The setup and operation of the SensAlarm Plus is controlled by parameters and procedures that are accessed
through the menu structure. The menu structure is entered from the Normal Operation Display by selecting
OK. This brings up the Main Menu from which all other menus and menu items can be selected.
Basic Guide to Using the Menu System
Selecting OK from the Normal Operation Display enters the SensAlarm Plus menu system. Within the menu
system OK is used in several ways: 1) to select an item from a list of menu items, 2) to confirm that an action
has occurred (e.g. changing an alarm from “Non-Latching” to “Latching”), or 3) to save a new value that has
been entered (e.g., a new alarm set point).
The << control returns to the previously displayed menu. If a change was in progress, the changes are
discarded. It is similar in use to an ESC key on a computer keyboard.
The ▲ control arrow is used to move UP a list or back a page in menu items.
The ▼ control arrow is used to move DOWN a list or forward a page in menu items.
The ▲ and ▼ control arrows also are used to increase/decrease numeric values of certain menu items (e.g.
alarm set point, cal gas concentration, etc.)
SENSALARM PLUS Menu Structure
5.1 Main Menu Screen
5.1.1. Calibration Mode
Last Cal @
###PPM (%LEL, %VOL)
MM/DD/YY (YY/MM/DD)
HH:MM:SS
5.1.1.1 Zero Transmitter
5.1.1.1.1
Apply ZERO gas Zeroing In Progress
5.1.1.1.2
Zero Complete” (either “Good” or “Fail”)
5.1.1.2 Calibrate
5.1.1.2.1
“Apply Gas Now”
5.1.1.2.2
“Cal In Progress” (stabilizing)
5.1.1.2.3
“Cal In Progress” (stable)
5.1.1.2.4
“Calibration Complete” (either “OK” or “FAIL”)
5.1.1.3 Set Cal Gas Conc
Use ▲ and ▼ to change value, and then select “OK” to save
5.1.2. Maintenance Mode
“Transmitter will be isolated for 10 minutes”
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Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.3. Data Review
5.1.3.1 Calibration Info
“Last Cal @
## PPM(%VOL, %LEL)”
DD/MM/YY (YY/MM/DD)
HH:MM:SS
PreCal Val
##PPM (%VOL, %LEL)
5.1.3.2 Sensor Status
Gas Name
$$$$$ ###
TWA Conc
## PPM (%LEL) (%VOL)
Sensor Life Remaining
### %
5.1.3.3 Sensor Data
Max Exposure
## PPM (%LEL) (%VOL)
MM/DD/YY (YY/MM/DD)
HH:MM:SS
Sensor Temp C
##.#
Max Temp C
##.#
MM/DD/YY (YY/MM/DD)
HH:MM:SS
Min Temp C
##.#
5.1.3.4 Active Alarm/Faults
(only “Active” Alarms and Faults displayed)
5.1.3.5 Fault Currents
Head Fail
#.##
Missing Sensor
#.##
Sensor Fail
#.##
Sensor E O L
#.##
Out Curr Track
#.##
Calibration Mode
#.##
Maintenance Mode
#.##
TOD Fail
#.##
TOD End Of Life
#.##
5.1.3.6 Fault Current Delay
Sensor EOL
##
Missing Sensor
##
Sensor Fail
##
Sensor E O L
##
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User Manual
5.1.3.7 Rly Alm Fault Config
5.1.3.7.1
-Relay 1 – Fail
Latching (Non-Latching)
Norm Energized (Norm De-Energized)
Time Delay ### Sec.
5.1.3.7.2
-Relay 2
Latching (Non-Latching)
Norm Energized (Norm De-Energized)
Time Delay ### Sec.
5.1.3.7.3
-Relay 3
Latching (Non-Latching)
Norm Energized (Norm De-Energized)
Time Delay ### Sec.
5.1.3.7.4
-Relay 4
Latching (Non-Latching)
Norm Energized (Norm De-Energized)
Time Delay ### Sec.
5.1.3.7.5
- Warn (ing) Current Relay 5
Latching (Non-Latching)
Enabled (Disabled)
Low Curr(ent)Time (Delay) ### Sec.
5.1.3.7.6
-Horn Relay 6
Latching (Non-Latching)
Timeout Enabled (Timeout Disabled)
Time Delay ### Sec
Timeout ### Seconds
5.1.3.7.7
-Red Strobe – Relay 7
Latching (Non-Latching)
Norm Energized (Norm De-Energized)
Time Delay ### Sec
5.1.3.7.8
-Amber Strobe - Relay 8
Latching (Non-Latching)
Norm Energized (Norm De-Energized)
Time Delay ### Sec
5.1.3.7.9
-Alarm 1
Relays Assigned
########
Enabled (Disabled)
Ascending (Descending)
Page 62
Set point
### PPM (%LEL) (%VOL)
Release Offs (Offset)
### PPM (%LEL) (%VOL)
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SensAlarm Plus – Universal Gas Monitoring System
-Alarm 2
5.1.3.7.10
Relays Assigned
########
Enabled (Disabled)
Ascending (Descending)
Set point
### PPM (%LEL) (%VOL)
Release Offs (Offset)### PPM (%LEL) (%VOL)
Alarm 3
5.1.3.7.11
Relays Assigned
########
Enabled (Disabled)
Ascending (Descending)
Set point
### PPM (%LEL) (%VOL)
Release Offs (Offset)
### PPM (%LEL) (%VOL)
TWA (Time Weighted Average) Alarm
5.1.3.7.12
Relays Assigned
########
Enabled (Disabled)
Ascending (Descending)
Set point
### PPM (%LEL) (%VOL)
Average Time Adjust
## Hours
-Head Fail
5.1.3.7.13
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
-Missing Sensor
5.1.3.7.14
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
-Sensor Fail
5.1.3.7.15
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
Sensor EOL (End Of Life)
5.1.3.7.16
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
Current Delay ###
-Out(put) Cur(rent) Track
5.1.3.7.17
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
Current Delay ###
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SensAlarm Plus – Universal Gas Monitoring System
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-Calibration Mode
5.1.3.7.18
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
-Maintenance Mode
5.1.3.7.19
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
-TOD (Test on Demand) Fail
5.1.3.7.20
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
Current Delay ###
-TOD End Of Life
5.1.3.7.21
Relays Assigned
########
Enabled (Disabled)
Fault Current #.##
Current Delay
###
5.1.3.8 TOD Data Review
ToD Cell Present (Not Present )
Auto Mode Enabled (Disabled)
Last MM/DD/YY (YY/MM/DD)
HH:MM
Last Test Passed (Failed)
Tests
#
Sec
##
5.1.3.9 Communication Reviews
4-20mA Communication
(None) SensAlert Sensor ID
No Comm Installed
5.1.3.9.1
HART Comm (if installed)
(No other settings)
5.1.3.9.2
Modbus Comm (if installed)
Add(ress) ### Baud (rate) #####
Parity Even (Odd)
Stop 1 (2)
5.1.3.10 Firmware Review
Display Version
##.##
Head Version
##.##
Sensor Version
##.##
Date Format
MM/DD/YY (YY/MM/DD)
Comm Version (If installed)
Page 64
##.##
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.4. Test On Demand
5.1.4.1 4-20 mA Not Active
“In Progress” screen, then result
5.1.4.2 4-20 mA Active
“In Progress” screen, then result
5.1.5. System Configuration
5.1.5.1 Self Test
Turns on and off all pixels, lights all LEDs and activates all installed relays
5.1.5.2 Alarm Settings
Use Up Down For Next Selection Select “OK” to Access
Alarm Functions
5.1.5.2.1
Use Up Down For Next Selection Select “OK” to Access
5.1.5.2.1.1
Alarm 1
5.1.5.2.1.1.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.1.1.1
Relay 1 – Fail
5.1.5.2.1.1.1.2
Relay 2
5.1.5.2.1.1.1.3
Relay 3
5.1.5.2.1.1.1.4
Relay 4
5.1.5.2.1.1.1.5
Warn Current-Relay 5
5.1.5.2.1.1.1.6
Horn -Relay 6
5.1.5.2.1.1.1.7
Red Strobe -Relay 7
5.1.5.2.1.1.1.8
Amber Strobe -Relay 8
5.1.5.2.1.1.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.1.2.1
Relay 1 – Fail
5.1.5.2.1.1.2.2
Relay 2
5.1.5.2.1.1.2.3
Relay 3
5.1.5.2.1.1.2.4
Relay 4
5.1.5.2.1.1.2.5
Warn Current-Relay 5
5.1.5.2.1.1.2.6
Horn -Relay 6
5.1.5.2.1.1.2.7
Red Strobe -Relay 7
5.1.5.2.1.1.2.8
Amber Strobe -Relay 8
5.1.5.2.1.1.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.1.1.4
Ascending ◄► Descending
Select “OK” to change status
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.1.1.5
User Manual
Setpoint
Use ▲ and ▼ to change value, then select “OK” to save
5.1.5.2.1.1.6
Release Offset
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.1.2
Alarm 2
Use Up Down For Next Selection Select “OK”
5.1.5.2.1.2.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.2.1.1
Relay 1 – Fail
5.1.5.2.1.2.1.2
Relay 2
5.1.5.2.1.2.1.3
Relay 3
5.1.5.2.1.2.1.4
Relay 4
5.1.5.2.1.2.1.5
Warn Current-Relay 5
5.1.5.2.1.2.1.6
Horn -Relay 6
5.1.5.2.1.2.1.7
Red Strobe -Relay 7
5.1.5.2.1.2.1.8
Amber Strobe -Relay 8
5.1.5.2.1.2.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.2.2.1
Relay 1 – Fail
5.1.5.2.1.2.2.2
Relay 2
5.1.5.2.1.2.2.3
Relay 3
5.1.5.2.1.2.2.4
Relay 4
5.1.5.2.1.2.2.5
Warn Current-Relay 5
5.1.5.2.1.2.2.6
Horn -Relay 6
5.1.5.2.1.2.2.7
Red Strobe -Relay 7
5.1.5.2.1.2.2.8
Amber Strobe -Relay 8
5.1.5.2.1.2.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.1.2.4
Ascending ◄► Descending
Select “OK” to change status
5.1.5.2.1.2.5
Setpoint
Select OK to Save,
UP= Increase
Down = Decrease
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Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.1.2.6
Release Offset
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.1.3
Alarm 3
Use Up Down For Next Selection Select “OK”
5.1.5.2.1.3.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.3.1.1
Relay 1 – Fail
5.1.5.2.1.3.1.2
Relay 2
5.1.5.2.1.3.1.3
Relay 3
5.1.5.2.1.3.1.4
Relay 4
5.1.5.2.1.3.1.5
Warn Current-Relay 5
5.1.5.2.1.3.1.6
Horn -Relay 6
5.1.5.2.1.3.1.7
Red Strobe -Relay 7
5.1.5.2.1.3.1.8
Amber Strobe -Relay 8
5.1.5.2.1.3.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.3.2.1
Relay 1 – Fail
5.1.5.2.1.3.2.2
Relay 2
5.1.5.2.1.3.2.3
Relay 3
5.1.5.2.1.3.2.4
Relay 4
5.1.5.2.1.3.2.5
Warn Current-Relay 5
5.1.5.2.1.3.2.6
Horn -Relay 6
5.1.5.2.1.3.2.7
Red Strobe -Relay 7
5.1.5.2.1.3.2.8
Amber Strobe -Relay 8
5.1.5.2.1.3.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.1.3.4
Ascending ◄► Descending
Select “OK” to change status
5.1.5.2.1.3.5
Setpoint
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.1.3.6
Release Offset
Select OK to Save,
UP= Increase
Down = Decrease
Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.1.4
User Manual
TWA Alarm
Use Up Down For Next Selection Select “OK”
5.1.5.2.1.4.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.4.1.1
Relay 1 – Fail
5.1.5.2.1.4.1.2
Relay 2
5.1.5.2.1.4.1.3
Relay 3
5.1.5.2.1.4.1.4
Relay 4
5.1.5.2.1.4.1.5
Warn Current-Relay 5
5.1.5.2.1.4.1.6
Horn -Relay 6
5.1.5.2.1.4.1.7
Red Strobe -Relay 7
5.1.5.2.1.4.1.8
Amber Strobe -Relay 8
5.1.5.2.1.4.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.1.4.2.1
Relay 1 – Fail
5.1.5.2.1.4.2.2
Relay 2
5.1.5.2.1.4.2.3
Relay 3
5.1.5.2.1.4.2.4
Relay 4
5.1.5.2.1.4.2.5
Warn Current-Relay 5
5.1.5.2.1.4.2.6
Horn -Relay 6
5.1.5.2.1.4.2.7
Red Strobe -Relay 7
5.1.5.2.1.4.2.8
Amber Strobe -Relay 8
5.1.5.2.1.4.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.1.4.4
Ascending ◄► Descending
Select “OK” to change status
5.1.5.2.1.4.5
Setpoint
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.1.4.6
Page 68
Average Time Adjust
5.1.5.2.1.4.6.1
15 Minutes
5.1.5.2.1.4.6.2
30 Minutes
5.1.5.2.1.4.6.3
60 Minutes
5.1.5.2.1.4.6.4
2 Hours
5.1.5.2.1.4.6.5
4 Hours
5.1.5.2.1.4.6.6
8 Hours
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Fault Functions
5.1.5.2.2
Use Up Down For Next Selection Select “OK” to Access
5.1.5.2.2.1
Head Fail
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.1.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.1.1.1
Relay 1 – Fail
5.1.5.2.2.1.1.2
Relay 2
5.1.5.2.2.1.1.3
Relay 3
5.1.5.2.2.1.1.4
Relay 4
5.1.5.2.2.1.1.5
Horn -Relay 6
5.1.5.2.2.1.1.6
Red Strobe -Relay 7
5.1.5.2.2.1.1.7
Amber Strobe -Relay 8
5.1.5.2.2.1.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.1.2.1
Relay 1 – Fail
5.1.5.2.2.1.2.2
Relay 2
5.1.5.2.2.1.2.3
Relay 3
5.1.5.2.2.1.2.4
Relay 4
5.1.5.2.2.1.2.5
Horn -Relay 6
5.1.5.2.2.1.2.6
Red Strobe -Relay 7
5.1.5.2.2.1.2.7
Amber Strobe -Relay 8
5.1.5.2.2.1.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.1.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
Document No. 360-0126-01 (Rev. D)
Page 69
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.2.2
User Manual
Missing Sensor
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.2.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.2.1.1
Relay 1 – Fail
5.1.5.2.2.2.1.2
Relay 2
5.1.5.2.2.2.1.3
Relay 3
5.1.5.2.2.2.1.4
Relay 4
5.1.5.2.2.2.1.5
Horn -Relay 6
5.1.5.2.2.2.1.6
Red Strobe -Relay 7
5.1.5.2.2.2.1.7
Amber Strobe -Relay 8
5.1.5.2.2.2.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.2.2.1
Relay 1 – Fail
5.1.5.2.2.2.2.2
Relay 2
5.1.5.2.2.2.2.3
Relay 3
5.1.5.2.2.2.2.4
Relay 4
5.1.5.2.2.2.2.5
Horn -Relay 6
5.1.5.2.2.2.2.6
Red Strobe -Relay 7
5.1.5.2.2.2.2.7
Amber Strobe -Relay 8
5.1.5.2.2.2.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.2.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.3
Sensor Fail
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.3.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
Page 70
5.1.5.2.2.3.1.1
Relay 1 – Fail
5.1.5.2.2.3.1.2
Relay 2
5.1.5.2.2.3.1.3
Relay 3
5.1.5.2.2.3.1.4
Relay 4
5.1.5.2.2.3.1.5
Horn -Relay 6
5.1.5.2.2.3.1.6
Red Strobe -Relay 7
5.1.5.2.2.3.1.7
Amber Strobe -Relay 8
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.2.3.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.3.2.1
Relay 1 – Fail
5.1.5.2.2.3.2.2
Relay 2
5.1.5.2.2.3.2.3
Relay 3
5.1.5.2.2.3.2.4
Relay 4
5.1.5.2.2.3.2.5
Horn -Relay 6
5.1.5.2.2.3.2.6
Red Strobe -Relay 7
5.1.5.2.2.3.2.7
Amber Strobe -Relay 8
5.1.5.2.2.3.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.3.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.4
Sensor End Of Life
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.4.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.4.1.1
Relay 1 – Fail
5.1.5.2.2.4.1.2
Relay 2
5.1.5.2.2.4.1.3
Relay 3
5.1.5.2.2.4.1.4
Relay 4
5.1.5.2.2.4.1.5
Horn -Relay 6
5.1.5.2.2.4.1.6
Red Strobe -Relay 7
5.1.5.2.2.4.1.7
Amber Strobe -Relay 8
5.1.5.2.2.4.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.4.2.1
Relay 1 – Fail
5.1.5.2.2.4.2.2
Relay 2
5.1.5.2.2.4.2.3
Relay 3
5.1.5.2.2.4.2.4
Relay 4
5.1.5.2.2.4.2.5
Horn -Relay 6
5.1.5.2.2.4.2.6
Red Strobe -Relay 7
5.1.5.2.2.4.2.7
Amber Strobe -Relay 8
5.1.5.2.2.4.3
Enabled ◄► Disabled
Select “OK” to change status
Document No. 360-0126-01 (Rev. D)
Page 71
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.2.4.4
User Manual
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.4.5
Adj Current Delay
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.5
Output Current Track
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.5.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.5.1.1
Relay 1 – Fail
5.1.5.2.2.5.1.2
Relay 2
5.1.5.2.2.5.1.3
Relay 3
5.1.5.2.2.5.1.4
Relay 4
5.1.5.2.2.5.1.5
Horn -Relay 6
5.1.5.2.2.5.1.6
Red Strobe -Relay 7
5.1.5.2.2.5.1.7
Amber Strobe -Relay 8
5.1.5.2.2.5.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.5.2.1
Relay 1 – Fail
5.1.5.2.2.5.2.2
Relay 2
5.1.5.2.2.5.2.3
Relay 3
5.1.5.2.2.5.2.4
Relay 4
5.1.5.2.2.5.2.5
Horn -Relay 6
5.1.5.2.2.5.2.6
Red Strobe -Relay 7
5.1.5.2.2.5.2.7
Amber Strobe -Relay 8
5.1.5.2.2.5.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.5.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.5.5
Adj Current Delay
Select OK to Save,
UP= Increase
Down = Decrease
Page 72
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.2.6
Calibration Mode
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.6.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.6.1.1
Relay 1 – Fail
5.1.5.2.2.6.1.2
Relay 2
5.1.5.2.2.6.1.3
Relay 3
5.1.5.2.2.6.1.4
Relay 4
5.1.5.2.2.6.1.5
Horn -Relay 6
5.1.5.2.2.6.1.6
Red Strobe -Relay 7
5.1.5.2.2.6.1.7
Amber Strobe -Relay 8
5.1.5.2.2.6.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.6.2.1
Relay 1 – Fail
5.1.5.2.2.6.2.2
Relay 2
5.1.5.2.2.6.2.3
Relay 3
5.1.5.2.2.6.2.4
Relay 4
5.1.5.2.2.6.2.5
Horn -Relay 6
5.1.5.2.2.6.2.6
Red Strobe -Relay 7
5.1.5.2.2.6.2.7
Amber Strobe -Relay 8
5.1.5.2.2.6.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.6.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.7
Maintenance Mode
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.7.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
Document No. 360-0126-01 (Rev. D)
5.1.5.2.2.7.1.1
Relay 1 – Fail
5.1.5.2.2.7.1.2
Relay 2
5.1.5.2.2.7.1.3
Relay 3
5.1.5.2.2.7.1.4
Relay 4
5.1.5.2.2.7.1.5
Horn -Relay 6
5.1.5.2.2.7.1.6
Red Strobe -Relay 7
5.1.5.2.2.7.1.7
Amber Strobe -Relay 8
Page 73
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.2.7.2
User Manual
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.7.2.1
Relay 1 – Fail
5.1.5.2.2.7.2.2
Relay 2
5.1.5.2.2.7.2.3
Relay 3
5.1.5.2.2.7.2.4
Relay 4
5.1.5.2.2.7.2.5
Horn -Relay 6
5.1.5.2.2.7.2.6
Red Strobe -Relay 7
5.1.5.2.2.7.2.7
Amber Strobe -Relay 8
5.1.5.2.2.7.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.7.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.8
TOD Fail
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.8.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.8.1.1
Relay 1 – Fail
5.1.5.2.2.8.1.2
Relay 2
5.1.5.2.2.8.1.3
Relay 3
5.1.5.2.2.8.1.4
Relay 4
5.1.5.2.2.8.1.5
Horn -Relay 6
5.1.5.2.2.8.1.6
Red Strobe -Relay 7
5.1.5.2.2.8.1.7
Amber Strobe -Relay 8
5.1.5.2.2.8.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.8.2.1
Relay 1 – Fail
5.1.5.2.2.8.2.2
Relay 2
5.1.5.2.2.8.2.3
Relay 3
5.1.5.2.2.8.2.4
Relay 4
5.1.5.2.2.8.2.5
Horn -Relay 6
5.1.5.2.2.8.2.6
Red Strobe -Relay 7
5.1.5.2.2.8.2.7
Amber Strobe -Relay 8
5.1.5.2.2.8.3
Enabled ◄► Disabled
Select “OK” to change status
Page 74
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.2.8.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.8.5
Adj Current Delay
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.9
TOD End Of Life
Use Up Down For Next Selection Select “OK”
5.1.5.2.2.9.1
Add Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.9.1.1
Relay 1 – Fail
5.1.5.2.2.9.1.2
Relay 2
5.1.5.2.2.9.1.3
Relay 3
5.1.5.2.2.9.1.4
Relay 4
5.1.5.2.2.9.1.5
Horn -Relay 6
5.1.5.2.2.9.1.6
Red Strobe -Relay 7
5.1.5.2.2.9.1.7
Amber Strobe -Relay 8
5.1.5.2.2.9.2
Delete Relay
Use Up Down For Next Selection Select “OK” to Add
5.1.5.2.2.9.2.1
Relay 1 – Fail
5.1.5.2.2.9.2.2
Relay 2
5.1.5.2.2.9.2.3
Relay 3
5.1.5.2.2.9.2.4
Relay 4
5.1.5.2.2.9.2.5
Horn -Relay 6
5.1.5.2.2.9.2.6
Red Strobe -Relay 7
5.1.5.2.2.9.2.7
Amber Strobe -Relay 8
5.1.5.2.2.9.3
Enabled ◄► Disabled
Select “OK” to change status
5.1.5.2.2.9.4
Adj Fault Current
Select OK to Save,
UP= Increase
Down = Decrease
5.1.5.2.2.9.5
Adj Current Delay
Select OK to Save,
UP= Increase
Down = Decrease
Document No. 360-0126-01 (Rev. D)
Page 75
SensAlarm Plus – Universal Gas Monitoring System
User Manual
Relay 1 – Fail
5.1.5.2.3
Use Up Down For Next Selection
5.1.5.2.3.1
Latching◄► Non- Latching
Select “OK” to change status
5.1.5.2.3.2
Norm Energized◄► Norm De-energized
Select “OK” to change status
5.1.5.2.3.3
Time Delay
UP= Increase
Down = Decrease
Select OK to Save,
Relay 2
5.1.5.2.4
Use Up Down For Next Selection
5.1.5.2.4.1
Latching◄► Non- Latching
Select “OK” to change status
5.1.5.2.4.2
Norm Energized◄► Norm De-energized
Select “OK” to change status
5.1.5.2.4.3
Time Delay
UP= Increase
Down = Decrease
Select OK to Save,
Relay 3
5.1.5.2.5
Use Up Down For Next Selection
5.1.5.2.5.1
Latching◄► Non- Latching
Select “OK” to change status
5.1.5.2.5.2
Norm Energized◄► Norm De-energized
Select “OK” to change status
5.1.5.2.5.3
Time Delay
UP= Increase
Down = Decrease
Select OK to Save,
Relay 4
5.1.5.2.6
Use Up Down For Next Selection
5.1.5.2.6.1
Latching◄► Non- Latching
Select “OK” to change status
5.1.5.2.6.2
Norm Energized◄► Norm De-energized
Select “OK” to change status
5.1.5.2.6.3
Time Delay
UP= Increase
Down = Decrease
Select OK to Save,
Page 76
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Warn Current – Relay 5
5.1.5.2.7
Use Up Down For Next Selection
Latching◄► Non- Latching
5.1.5.2.7.1
Select “OK” to change status
Enabled◄► Disabled
5.1.5.2.7.2
Select “OK” to change status
Low Current Time Adj
5.1.5.2.7.3
UP= Increase
Down = Decrease
Select OK to Save,
Horn - Relay 6
5.1.5.2.8
Use Up Down For Next Selection
Latching◄► Non- Latching
5.1.5.2.8.1
Select “OK” to change status
Timeout Disabled◄► Timeout Enabled
5.1.5.2.8.2
Select “OK” to change status
Time Delay
5.1.5.2.8.3
UP= Increase
Down = Decrease
Select OK to Save,
Timeout Delay
5.1.5.2.8.4
UP= Increase
Down = Decrease
Select OK to Save,
Red Strobe - Relay 7
5.1.5.2.9
Use Up Down For Next Selection
Latching◄► Non- Latching
5.1.5.2.9.1
Select “OK” to change status
Norm Energized◄► Norm De-energized
5.1.5.2.9.2
Select “OK” to change status
Time Delay
5.1.5.2.9.3
UP= Increase
Down = Decrease
Select OK to Save,
5.1.5.2.10
Amber Strobe - Relay 8
Use Up Down For Next Selection
5.1.5.2.10.1
Latching◄► Non- Latching
Select “OK” to change status
5.1.5.2.10.2
Norm Energized◄► Norm De-energized
Select “OK” to change status
Document No. 360-0126-01 (Rev. D)
Page 77
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.2.10.3
User Manual
Time Delay
UP= Increase
Down = Decrease
Select OK to Save,
5.1.5.3 4/20ma Adjustment
Use ▲ and ▼ to change selection
5.1.5.3.1
4 mA
Up = Increase
Down Decrease
Select OK to Complete
Select << To Cancel
5.1.5.3.2
20 mA
Up = Increase
Down Decrease
Select OK to Complete
Select << To Cancel
5.1.5.3.3
1 mA
Up = Increase
Down Decrease
Select OK to Complete
Select << To Cancel
5.1.5.4 Adjust Date/Time
Use ▲ and ▼ to change value
5.1.5.4.1
5.1.5.4.1.1
If MM/DD/YY
Month
Use ▲ and ▼ to change value, then OK
5.1.5.4.1.2
Date
Use ▲ and ▼ to change value, then OK
5.1.5.4.1.3
Year
Use ▲ and ▼ to change value, then OK
5.1.5.4.1.4
Hour
Use ▲ and ▼ to change value, then OK
5.1.5.4.1.5
Minute
Use ▲ and ▼ to change value, then OK
5.1.5.4.2
5.1.5.4.2.1
If DD/MM/YY
Date
Use ▲ and ▼ to change value, then OK
5.1.5.4.2.2
Month
Use ▲ and ▼ to change value, then OK
Page 78
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.4.2.3
Year
Use ▲ and ▼ to change value, then OK
5.1.5.4.2.4
Hour
Use ▲ and ▼ to change value, then OK
5.1.5.4.2.5
Minute
Use ▲ and ▼ to change value, then OK
5.1.5.5 Communications Setup
Use ▲ and ▼ to change value
4-20 mA communication
5.1.5.5.1
5.1.5.5.1.1
None
Select OK To Save
5.1.5.5.1.2
SensAlert Sensor ID
Select OK To Save
5.1.5.5.2
No Comm Installed
5.1.5.5.3
ModBus Comm (if Installed)
5.1.5.5.3.1
Modbus Address
Modbus Address ###
Use ▲ and ▼ to change value, then OK
5.1.5.5.3.2
Baud Rate
Use ▲ and ▼ to change value
5.1.5.5.3.2.1
9600
Select OK To Save
5.1.5.5.3.2.2
19200
Select OK To Save
5.1.5.5.3.2.3
38400
Select OK To Save
5.1.5.5.3.3
Parity
Use ▲ and ▼ to change value
5.1.5.5.3.3.1
None
Select OK To Save
5.1.5.5.3.3.2
Odd
Select OK To Save
5.1.5.5.3.3.3
Even
Select OK To Save
Document No. 360-0126-01 (Rev. D)
Page 79
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.5.3.4
User Manual
Stop Bits
Use ▲ and ▼ to change value
5.1.5.5.3.4.1
1
Select OK To Save
5.1.5.5.3.4.2
2
Select OK To Save
Hart Comm (if Installed)
5.1.5.5.4
No user adjustments
5.1.5.6 TOD Mode Adjustment
Auto Mode Enable
5.1.5.6.1
Use ▲ and ▼ to change selection
5.1.5.6.1.1
Disable Automatic
Select OK To Save
5.1.5.6.1.2
Enable Automatic
Select OK To Save
5.1.5.6.2
Test Date/Time
5.1.5.6.2.1 If Date Format is DD/MM/YY
5.1.5.6.2.1.1
Date
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.1.2
Month
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.1.3
Year
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.1.4
Hour
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.1.5
Minute
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.2 If Date Format is MM/DD/YY
5.1.5.6.2.2.1
Month
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.2.2
Date
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.2.3
Year
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.2.4
Hour
Use ▲ and ▼ to change value, then OK
5.1.5.6.2.2.5
Minute
Use ▲ and ▼ to change value, then OK
Page 80
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
Days Between Tests
5.1.5.6.3
”Adj Num Of Days”
##
Use ▲ and ▼ to change value, then OK
Cell Intensity
5.1.5.6.4
”50% Is Nominal”
“Cell Intensity” ###%
Up = Increase
Down Decrease
Use ▲ and ▼ to change value, then OK
Output Indicators
5.1.5.6.5
5.1.5.6.5.1
None
Select OK To Save
5.1.5.6.5.2
4-20 Current Loop
Select OK To Save
5.1.5.7 Sensor Adjustment
If Toxic or Oxygen sensor installed
No Adjustments Are Possible
Use ▲ and ▼ to change selection
Select Cal Gas
5.1.5.7.1
(CB or IR CMB Sensor installed)
Use ▲ and ▼ to change selection
5.1.5.7.1.1
Methane
”Methane
Has Been Selected”
Select OK To Save
(If IR CMB Sensor installed, and Cal Gas was Propane, Monitor will restart)
Select << to Cancel
5.1.5.7.1.2
Propane
”Propane
Has Been Selected”
Select OK To Save
(If IR CMB Sensor installed, and Cal Gas was Methane, Monitor will restart)
Select << to Cancel
5.1.5.7.1.3
Other
”Other
Has Been Selected”
Select OK To Save
(If IR CMB Sensor installed, and Cal Gas was not Other, Monitor will restart)
Select << to Cancel
Document No. 360-0126-01 (Rev. D)
Page 81
SensAlarm Plus – Universal Gas Monitoring System
User Manual
Select K Factor
5.1.5.7.2
If CB CMB Sensor is installed
And Cal Gas Is Methane”
Use ▲ and ▼ to change selection
5.1.5.7.2.1
None
None
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
5.1.5.7.2.2
Hydrogen
Hydrogen
K Factor is: 1.23”
Select OK To Save
Select << to Cancel
5.1.5.7.2.3
Propane
Propane
K Factor is: 1.90”
Select OK To Save
Select << to Cancel
5.1.5.7.2.4
Hexane
Hexane
K Factor is: 2.33”
Select OK To Save
Select << to Cancel
5.1.5.7.2.5
Butane
Butane
K Factor is: 2.03”
Select OK To Save
Select << to Cancel
5.1.5.7.2.6
Custom K Factor
Custom K Factor
K Factor is: 2.03”
Use ▲ and ▼ to change value, then OK
Select OK To Save
Select << to Cancel
5.1.5.7.3
Select K Factor
If CB CMB Sensor is installed
And Cal Gas Is Propane”
Use ▲ and ▼ to change selection
Page 82
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.7.3.1
None
None
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
5.1.5.7.3.2
Hydrogen
Hydrogen
K Factor is: .65”
Select OK To Save
Select << to Cancel
5.1.5.7.3.3
Methane
Methane
K Factor is: .53”
Select OK To Save
Select << to Cancel
5.1.5.7.3.4
Hexane
Hexane
K Factor is: 1.23”
Select OK To Save
Select << to Cancel
5.1.5.7.3.5
Butane
Butane
K Factor is: 1.07”
Select OK To Save
Select << to Cancel
5.1.5.7.3.6
Custom K Factor
Custom K Factor
K Factor is: 1.07”
Use ▲ and ▼ to change value
Select OK To Save
Select << to Cancel
Select K Factor
5.1.5.7.4
If CB CMB Sensor is installed
And Cal Gas Is Other”
Use ▲ and ▼ to change selection
5.1.5.7.4.1
None
”None
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
Document No. 360-0126-01 (Rev. D)
Page 83
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.7.4.2
User Manual
Custom K Factor
“Custom K Factor
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
Select K Factor
5.1.5.7.5
If IR CMB Sensor is installed
And Cal Gas Is Methane”
Use ▲ and ▼ to change selection
5.1.5.7.5.1
None
None
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
Select K Factor
5.1.5.7.6
If IR CMB Sensor is installed
And Cal Gas Is Propane”
Use ▲ and ▼ to change selection
5.1.5.7.6.1
None
None
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
5.1.5.7.6.2
Methanol
Methanol
K Factor is: .57”
Select OK To Save
Select << to Cancel
5.1.5.7.6.3
Butadiene
Butadiene
K Factor is: 2.54”
Select OK To Save
Select << to Cancel
5.1.5.7.6.4
Butane
Butane
K Factor is: 1.19”
Select OK To Save
Select << to Cancel
Page 84
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.1.5.7.6.5
Hexane
Hexane
K Factor is: 1.61”
Select OK To Save
Select << to Cancel
5.1.5.7.6.6
Custom K Factor
Custom K Factor
K Factor is: 1.07”
Use ▲ and ▼ to change value
Select OK To Save
Select << to Cancel
Select K Factor
5.1.5.7.7
If IR CMB Sensor is installed
And Cal Gas Is Other”
Use ▲ and ▼ to change selection
5.1.5.7.7.1
None
”None
K Factor is: 1.00”
Select OK To Save
Select << to Cancel
5.1.5.7.7.2
Custom K Factor
“Custom K Factor
K Factor is: 1.00”
Use ▲ and ▼ to change value
Select OK To Save
Select << to Cancel
5.1.5.8 Set Password
5.1.5.8.1
0XXXXX
”6 Digits 0-9
Use ▲ and ▼ to change value each digit
Select OK To Save
Select << To Exit”
5.1.5.8.2
New Password Entered
Select OK To Save
Select << to Cancel
Document No. 360-0126-01 (Rev. D)
Page 85
SensAlarm Plus – Universal Gas Monitoring System
User Manual
5.1.5.9 Reset Defaults
“This will reset all
Relays, Alarms, and
Faults to Factory
Default Values”
Select OK To Continue
(Selecting OK will restart the Monitor)
Select << to Cancel
5.1.5.10
Set Transmitter Tag
5.1.5.10.1
$$$$$$$$$$$$$$$$$$$$$
”____SENSALERT_PLUS____” is default
Use ▲ and ▼ to change each of 21 Characters
Select OK To Continue
Select OK after the last character to save
5.1.6.
Lost Password
5.1.6.1 If no password installed
”No Password Installed”
5.1.6.2 If password installed
”Please Call Sensidyne
At 727-530-3602
Please Provide
This Code
########”
Page 86
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.2 Main Menu (screens)
As shown on the example display to the right, the top level
(main) menu allows the selection of several submenus,
documented below. Selecting OK brings up the submenus.
5.2.1
Main Menu
> Calibration Mode
> Calibration Mode
MaintenanceMode
Mode
Maintenance
Data
Review
Data
Review
Test-on-Demand
Test
On Demand
System
Config
System
Configuration
Lost Password
Calibration Mode
The Calibration mode menu shows information about the last calibration,
including the concentration of gas used and the date and time of the last
successful calibration. Refer to Section 3.1
Unless reset, the displayed gas concentration is assumed for the current
calibration.
A complete calibration is done by zeroing the Transmitter to establish the
sensor response without any gas present, and the calibrate step which
adjusts the response of the unit to a known concentration of gas. The
combination of zero and calibrate steps adjusts the unit to display accurate
measurements across the entire range of the sensor. The sensor contains an
internally stored gas response curve that compensates variations caused by
temperature excursions.
Mode
Calibration Mode
>Calibration
LastMaintenance
Cal @ 50
PPM
Mode
05/17/06
11:23:34
Data Review
Test-on-Demand
Zero
Transmitter
System Config
> Calibrate
Set Cal Gas Conc
5.2.1.1 Zero Monitor
Refer to Section 3.1.1
When this menu item is selected, the unit displays a screen requesting the
application of zero gas. It is important to use pure zero gas and not assume
that the ambient is gas interferent free. When OK is selected, the zeroing in
progress screen appears. After the zero gas reading stabilizes, the display will
show “Zero Complete” and “Good” and the unit stores the zero gas value for
subsequent use. If the gas reading does not stabilize, or the sensor output is
not within acceptable limits the display will show “Zero Complete” and “Fail”
and the previously stored zero reading will not be altered.
ZERO
gas
>Apply
Calibration
Mode
Maintenance Mode
Select
OK
To Continue
Data
Review
Test-on-Demand
Select
<< To
Cancel
System
Config
5.2.1.2 Calibrate
Refer to Section 3.1.2
When this menu item is selected, the unit suppresses the 4 – 20 mA output,
displays “Apply Gas Now” and waits for calibration gas to be applied. The
calibration plug should be used with a flow rate of 0.5 to 1.5 LPM. The
concentration of gas used should match the value displayed on the screen. If
you are using a different concentration, alter the setting using the “Set Cal
Gas Concentration” menu item before entering Calibrate. After the gas
reading stabilizes, the unit calculates a span calibration factor and stores it for
subsequent use. If the gas reading does not stabilize, or the sensor output is
not within acceptable limits the display will show “Fail” and the previously
stored span value will not be altered.
Document No. 360-0126-01 (Rev. D)
> Calibration Mode
Maintenance Mode
Apply Gas Now
Data Review
Test-on-Demand
System Config
Select << To Cancel
Page 87
SensAlarm Plus – Universal Gas Monitoring System
User Manual
5.2.1.3 Set Cal Gas Concentration
Refer to Section 3.1.2
This menu item allows selecting the calibration gas concentration. The ▲ and
▼ keys can be used to adjust the concentration. The value will be stored
when OK is selected and presented as the default value in subsequent span
calibrations.
Set
Cal GasMode
Conc
Calibration
>
Maintenance Mode
Data Review
Test-on-Demand
System Config
25 PPM
5.2.2 Maintenance Mode
Maintenance mode allows the output indication of the unit to be disabled for
ten minutes. The outputs, both 4-20 ma and data communication, will not
respond to gas during the maintenance mode time. On units equipped with
Relays, the relays will not change state while in Maintenance Mode. This is to
allow for periodic maintenance on the unit without setting off alarms.
Maintenance Mode
> Calibration Mode
Transmitter will
Maintenance
be isolated Mode
for
Data10Review
minutes
Test-on-Demand
Select
OK To Continue
System
Config
Select <<
To Exit
5.2.3 Data Review
Data review allows the examination of data stored by the unit. Data reviews are available for the Test-OnDemand gas generating cell, the installed sensor, Fault Currents, Active Alarms/Faults, Rly Alm Fault Config.,
Calibration Info, Communication Review, and Firmware Review.
Data Review
Calibration
> >
Calibration
InfoMode
Sensor
Status Mode
Maintenance
Sensor
Data Data
Review
Active Alarms/Faults
Test-on-Demand
Fault Currents
System
Config
Fault
Current
Delay
-- more --
Page 88
Data Review
>--Calibration
Mode
more -Rly
Alm Fault Config
Maintenance
Mode
Review
ToD
Data
Data
Review
Review
Communication
Test-on-Demand
Firmware Review
System Config
Document No. 360-0126-01 (Rev. D)
User Manual
5.2.3.1
SensAlarm Plus – Universal Gas Monitoring System
Calibration Info
The Calibration Info review screen displays the last Calibration gas
concentration, the Date of last successful calibration, and Pre Calibration gas
concentration (as found condition).
5.2.3.2
Sensor Status
The Sensor Status review screen displays the abbreviated gas name, upper
range of the sensor, and Time Weighted Average Gas Concentration. It also
displays the percentage of sensor life remaining. Sensors start at 100% and
decline as they age. The Sensor End Of Life warning occurs at 10% Sensor
Life Remaining.
5.2.3.3
Sensor Status
> Calibration Mode
Gas Name H2S
100
Maintenance
Mode
TWA
CONC
090ppm
DataLife
Review
Sensor
Remaining
Test-on-Demand
System Config
25%
Sensor Data
The Sensor Data review screen displays maximum gas concentration with
time stamp, present sensor temperature in degrees C, maximum sensor
temperature with time stamp, and minimum sensor temperature with time
stamp. All Sensor Data values are reset with a successful sensor calibration.
5.2.3.4
Calibration Info
> Calibration Mode
Mode
LastMaintenance
Cal @
50PPM
Data
Review
01/24/06
04:08:17
Test-on-Demand
PreCal
Value
48PPM
System Config
Sensor Data
> Calibration
Max
Exposur Mode
50 PPM
12/11/07
14:57:20
Maintenance
Mode
Sensor
C
25.9
DataTemp
Review
Max Temp C
27.7
Test-on-Demand
01/15/08
21:04:44
Min System
Temp C Config 15.0
02/06/08
09:23:10
Active Alarms/Faults
The Active Alarms/Faults review screen displays the Active Alarms and
Faults.
Document No. 360-0126-01 (Rev. D)
Active Alarms/Faults
> Calibration
Alarm 1Mode
Maintenance
Alarm 2 Mode
DataAlarm
Review
3
Test-on-Demand
System Config
Page 89
SensAlarm Plus – Universal Gas Monitoring System
5.2.3.5
User Manual
Fault Currents
The Fault Currents review screen displays the fault currents in mA for each of the nine Fault Functions.
Fault Currents
> Calibration
Mode1.00
Head
Fail
Maintenance
Missing
Sensor Mode
2.00
Sensor
Fail
1.55
Data
Review
Sensor
EOL
Test-on-Demand3.00
Out Cur Track
3.00
SystemMode
Config 2.55
Calibration
Maintenance Mode 3.50
5.2.3.6
Fault Currents
> Calibration
Mode
-- more
--
Maintenance
Maintenance
ModeMode
3.50
ToD Data
Fail Review
2.50
ToD Test-on-Demand
End of Life
2.75
System Config
Fault Current Delay
The Fault Current Delay review screen displays the number of seconds of
each hour that the Fault Current will be active for an active fault.
Fault Current Delay
> Calibration
Mode 30
Sensor
EOL
Maintenance
Mode
Out Cur
Track
45
ToD Data
Fail Review
60
ToD Test-on-Demand
End of Life
90
System Config
5.2.3.7 Rly Alm Fault Config
The Rly Am Fault Config review screen displays the Relays, Alarms, and
Fault settings.
5.2.3.7.1
Relay 1 – Fail
5.2.3.7.2
Relay 2
5.2.3.7.3
Relay 3
5.2.3.7.4
Relay 4
5.2.3.7.5
Warn Current – Relay 5
5.2.3.7.6
Horn – Relay 6
5.2.3.7.7
Red Strobe – Relay 7
5.2.3.7.8
Amber Strobe – Relay 8
5.2.3.7.9
Alarm 1
Rly Alm Fault Config
> Calibration
Mode
Relay 1 – Fail
Maintenance
Mode
Non-Latching
Data
Review
Norm Energized
Test-on-Demand
Time
Delay 010 Sec
System Config
5.2.3.7.10 Alarm 2
5.2.3.7.11 Alarm 3
5.2.3.7.12 TWA Alarm
5.2.3.7.13 Head fail
5.2.3.7.14 Missing Sensor
Rly Alm Fault Config
> Calibration
Alarm 1Mode
Maintenance
Relays Assigned Mode
267
Data Review
Enabled
Test-on-Demand
Ascending
Setpoint
10PPM
System Config
Rlease Offs
3PPM
5.2.3.7.15 Sensor Fail
5.2.3.7.16 Sensor EOL
Page 90
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.2.3.7.17 Out Cur Track
5.2.3.7.18 Calibration Mode
5.2.3.7.19 Maintenance Mode
5.2.3.7.20 ToD Fail
5.2.3.7.21 ToD End of Life
Rly
Alm Fault Config
> Calibration Mode
Sensor Fail
Maintenance Mode
Relays Assigned 1
Data Review
Enabled
Test-on-Demand
Fault
Current
2.55
System Config
5.2.3.8 ToD Review
The ToD Review screen displays the data stored on the ToD cell. If a ToD
cell is not installed “ToD Cell Not Present” will be displayed. The data
displayed include the status of Auto Mode (Enabled/Disabled), the date and
time of the next automatic ToD test (if Auto Mode Enabled), the date and
time of the last ToD test, the results of the test (Pass/Fail), the number of
tests that have been performed by the cell, and the total amount of testing
time (in seconds).
5.2.3.9
Communication Review
The Communication Review screen displays the present setting of the
4/20mA Current Loop (SensAlert sensor ID or None). Depending on which
Communications Option is installed (None, HART, or Modbus) the display
will vary.
5.2.3.10
ToD Data Review
> Calibration Mode
ToD Cell Present
Maintenance
Mode
Auto
Mode Enabled
Review 09:07
NextData
01/26/06
LastTest-on-Demand
01/24/06
09:07
System
Passed
@ Config
74 PPM
Tests
2 Sec
120
Communication Review
> Calibration Mode
Maintenance
Mode
4/20mA
Communications
Data Review
SensAlert
Sensor ID
Modbus Comm
Test-on-Demand
AddSystem
013
Baud 38400
Config
Parity Even Stop 1
Firmware Review
The Firmware Review screen displays the firmware version of the display
board, Sensor interface, sensor, and communications board if installed. Also
the present Date Format the Display is using.
Document No. 360-0126-01 (Rev. D)
Firmware Review
> Calibration Mode
Maintenance
Display
Version Mode
1.17
Data
Review
Head
Version
1.09
Sensor
Version
1.04
Test-on-Demand
DataSystem
Format Config
MM/DD/YY
No Comm Installed
Page 91
SensAlarm Plus – Universal Gas Monitoring System
User Manual
5.2.4 Test-On-Demand (Main Menu)
The Test-On-Demand™ menu item allows the unit to manually activate the
gas generating cell to present gas to the sensor to qualitatively check the
operation of the unit from sensor to analog and digital outputs. The outputs
may be disabled to remain at nominal levels, or remain active so that the
output connections can be tested. If the outputs are active, system gas
alarms may be set off. The Test-On-Demand returns either a “ToD PASS” or
“ToD FAIL” result. The Test-On-Demand can fail if a ToD cell is not present,
there is gas present, or if a sensor that is incompatible with the ToD cell is
installed. The Test-On-Demand feature can also be set to automatically
perform these tests on a periodic basis (see Section 3.3).
On Demand
Calibration
Mode
>Test
> 4-20
mA Not Active
Maintenance
Mode
4-20
mA
Active
Data
Review
Test-on-Demand
Select
OK To
Continue
System
Config
Select << To Cancel
5.2.5 System Configuration
The System Configuration menu provides a large number of functions for configuring the operation of the unit.
These include conducting a self test, alarm and relay setup, adjusting the 4 mA & 20 mA outputs, setting the
date and time, communications setup, adjusting ToD cell functions, setting Combustible sensor parameters,
and setting a password.
System Configuration
Calibration
Mode
>>
Self
Test
Maintenance
Alarm
Settings Mode
4/20
mA
Adjustment
Data
Review
Adjust
Date/Time
Test-on-Demand
Communication Setup
System
ToD
ModeConfig
Adjustment
--more--
System Configuration
> Calibration Mode
--more-Maintenance
Mode
ToD
Mode Adjustment
Sensor
Adjustment
Data Review
Set
Password
Test-on-Demand
Reset Defaults
System Config
Set Transmitter Tag
5.2.5.1 Self Test
The self test checks LED operation and activates all of the screen pixels for a
visual inspection. In addition, all relays, horn, and strobes are tested.
Self Test will turn
> ON
Calibration
all pixels,Mode
turn
OFF all pixels,Mode
Maintenance
CycleReview
all LEDs,
Data
Activate installed
Test-on-Demand
Relays.
System
Config
Select
OK To
Continue
Select << To Cancel
Page 92
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.2.5.2 Alarm Settings
The Alarm Settings menu contains the following items: Alarm Functions, Fault
Functions, Relay 1 – Fail, Relay 2, Relay 3, Relay 4, Warn Current -Relay 5,
Horn - Relay 6, Red Strobe – Relay 7, and Amber Strobe – Relay 8. Each
item is discussed below. See Section 4.1 for instructions on using the
functions in the Alarm Settings menu.
5.2.5.2.1 Alarm (or Fault) Functions
The Alarm Functions menu is used for setting and adjusting the three primary
gas alarms (Alarm 1, Alarm 2, Alarm 3), as well as the TWA Alarm.
Instructions for using this menu are found in Section Error! Reference
source not found..
Alarm Settings
> Calibration Mode
Maintenance
Mode
Alarm Functions
Data Review
Test-on-Demand
Use Up Down For
System
Config
Next Selection
Select OK To Continue
Functions
>Alarm
Calibration
Mode
> Alarm 1
Maintenance
Mode
Alarm
2
Data3Review
Alarm
TWA
Alarm
Test-on-Demand
System Config
Select OK to Change
5.2.5.2.1.1 Alarm 1
Alarm 1 is usually associated with the lowest level alarm setpoint. Also known
as the “LO” Alarm. The Alarm 1 screen is shown at the right. The descriptions
of the functions for Alarm 1 are also applicable to Alarm 2, Alarm 3, and the
TWA Alarm. The TWA Alarm, however, uses Average Time Adjust instead of
Release Offset.
In this menu you can add or delete relays for Alarm 1, enable or disable the
alarm, make the alarm ascending or descending, adjust the alarm setpoint,
and change the release offset. These functions are discussed in greater detail
in Section 4.1.
Alarm 1
> Calibration
Mode 2
Relays
Assigned
Maintenance
Mode
> Add
Relay
Data Relay
Review
Delete
Enabled
Test-on-Demand
Ascending
System Config
Setpoint
Release Offset
5.2.5.2.1.2 Alarm 2
Alarm 2 is usually associated with the next highest alarm setpoint. Also known
as the “Hi” Alarm
5.2.5.2.1.3 Alarm 3
Alarm 3 is usually associated with the highest alarm setpoint. Also known as
the “HiHi” Alarm.
5.2.5.2.1.4 TWA Alarm
The TWA (Time Weighted Average) Alarm is a calculated alarm associated
with gas exposure averaged over a fixed time period. The time period can
range from 15 minutes to 8 hours. Eight hours is considered the typical
calculated time period.
TWA Alarm
> Calibration
Mode 3
Relays
Assigned
Maintenance
Mode
> Add
Relay
Data Relay
Review
Delete
Enabled
Test-on-Demand
Ascending
System Config
Setpoint
Average Time Adjust
The only function that differs from Alarm 1 – 3 is Average Time Adjust. This is
Document No. 360-0126-01 (Rev. D)
Page 93
SensAlarm Plus – Universal Gas Monitoring System
User Manual
the time period over which the TWA Alarm calculates its weighted average.
The time period can range from 15 minutes to 8 hours.
5.2.5.2.2 Fault Functions
The Fault Functions menu contains the following items:

Head Fail

Missing Sensor

Sensor Fail

Sensor End Of Life

Output Current Track

Calibration Mode

Maintenance Mode

TOD Fail

TOD End Of Life
Fault Functions
> Calibration
Mode
> Head
Fail
Maintenance
Missing SensorMode
Sensor
Fail
Data Review
Sensor
End Of Life
Test-on-Demand
Output Current Track
System Config
Calibration
Mode
--more--
For detailed instructions covering these faults, see Section 4.2
Fault Functions
> Calibration Mode
--more—
Maintenance
Mode
Maintenance
Mode
Data
TOD
FailReview
Test-on-Demand
TOD
End Of Life
System Config
5.2.5.2.2.1 Head Fail
Head Fail is activated when communication from the display unit to the sensor
interface has been disrupted. This can be caused by a failure of the head
processor or interruption of the communication path.
Head Fail
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Test-on-Demand
Delete
Relay
Disabled
System Config
Adj Fault Current
5.2.5.2.2.2 Missing Sensor
The Missing sensor fault is activated when communication between the
Monitor and the sensor has been disrupted or the sensor has been removed.
Missing Sensor
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Test-on-Demand
Delete
Relay
Disabled
System Config
Adj Fault Current
Page 94
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.2.5.2.2.3 Sensor Fail
The Sensor Fail fault is activated when the output of the sensor shows that it
is not operating properly.
Sensor Fail
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
5.2.5.2.2.4 Sensor End of Life
The Sensor End Of Life fault is activated when the predicted life of the sensor
falls below 10% of its initial lifetime expectation. The sensor lifetime
expectation varies from gas type to gas type. It is based on the calculated
predictive failure measurement, and a set of expected end-of-life conditions.
5.2.5.2.2.5 Output Current Track
The Output Current Track is activated when the actual output of the Monitor
differs from the expected output of the system. This ensures that the 4-20 mA
output agrees with the reading on the Monitor display. This warning function
should be disabled when the 4-20 mA output loop is not used.
Sensor
End Of Life
> Calibration Mode
Relays
Assigned
1
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
Adj Current Delay
Output
Current Track
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Enabled
System Config
Adj Fault Current
Adj Current Delay
5.2.5.2.2.6 Calibration Mode
The Calibration Mode fault is activated when the Monitor is put into the
Calibration Mode.
Calibration Mode
> Calibration Mode
Relays
Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Test-on-Demand
Delete
Relay
Disabled
System Config
Adj Fault Current
Document No. 360-0126-01 (Rev. D)
Page 95
SensAlarm Plus – Universal Gas Monitoring System
User Manual
5.2.5.2.2.7 Maintenance Mode
The Calibration Mode fault is activated when the Monitor is put into the
Maintenance Mode.
Maintenance
Mode
> Calibration Mode
Relays
Assigned
2
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
5.2.5.2.2.8 ToD Fail
The ToD Fail fault is activated when the Monitor fails a manual or automatic
ToD test. The fault can be cleared by a successful ToD test or Disabling the
fault function.
ToD Fail
> Calibration Mode
Relays Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
Adj Current Delay
5.2.5.2.2.9 ToD End of Life
Tod end of life fault is activated when the predicted end of life of the ToD cell
is reached. It is based on a set of expected end of life conditions
ToD End of Life
> Calibration Mode
Relays Assigned 1
Maintenance Mode
Data
Review
> Add
Relay
Delete
Relay
Test-on-Demand
Disabled
System Config
Adj Fault Current
Adj Current Delay
5.2.5.2.3 Relay 1 – Fail
This is the factory default relay for all warnings. Relay 1 can be set as latching
or non-latching and normally energized or normally de-energized. The relay is
shipped from the factory as “Non-Latching, Normally Energized, Time Delay –
10 Seconds.” The activation time delay for the relay is user adjustable. See
Section 4.4
Page 96
Relay 1 - Fail
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataDe-energized
Review
Time
Delay
Test-on-Demand
System Config
Select OK To Change
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.2.5.2.4 Relay 2
Relay 2 can be set as latching or non-latching and normally energized or
normally de-energized. The activation time delay for the relay can also be
adjusted. See Section 4.4
Relay 2
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataDe-energized
Review
Time
Delay
Test-on-Demand
System Config
Select OK To Change
5.2.5.2.5 Relay 3
Relay 3 can be set as latching or non-latching and normally energized or
normally de-energized. The activation time delay for the relay can also be
adjusted. See Section 4.4
Relay 3
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataDe-energized
Review
Time
Delay
Test-on-Demand
System Config
Select OK To Change
5.2.5.2.6 Relay 4
Relay 4 can be set as latching or non-latching and normally energized or
normally de-energized. The activation time delay for the relay can also be
adjusted. See Section 4.4
Relay 4
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataDe-energized
Review
Time
Delay
Test-on-Demand
System Config
Select OK To Change
5.2.5.2.7 Warn Current-Relay 5
The Warn Current-Relay 5 is a warning function that drops the 4-20 mA
output to the Fault Current Level when an assigned condition occurs. The
relay will accept the four alarms as assigned conditions. The Low Current
Time Adjust is used to change the amount of time the Warn Current-Relay 5
remains at the Fault Current level when a warning occurs. See Section 4.3
Document No. 360-0126-01 (Rev. D)
Warn Current-Relay5
> Calibration Mode
Maintenance Mode
> Non-Latching
Enabled
Data Review
Low
Current Time Adj
Test-on-Demand
System Config
Select OK to Change
Page 97
SensAlarm Plus – Universal Gas Monitoring System
5.2.5.2.8
User Manual
Relay 6 (Horn)
The 95dB Piezo horn is located on the bottom right side of the enclosure. The
sounder can be activated by any alarm and warning condition. The alarm
reset conforms to ISA alarm sequence 3A by using the red pushbutton switch.
The horn has a timeout feature controlled by Timeout Enabled/Disabled and
Timeout Delay. See Section 4.5.
Horn – Relay 6
> Calibration Mode
> Non-Latching
Maintenance Mode
Timeout
Disabled
Data Review
Time Delay
Test-on-Demand
Timeout Delay
System Config
Select OK To Change
5.2.5.2.9 Relay 7 (Red Strobe)
The Red Strobe Relay 7 can be set as latching or non-latching and normally
energized or normally de-energized. The activation time delay for the relay
can also be adjusted. See Section 4.6.
Red Strobe – Relay7
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataDe-energized
Review
Time
Delay
Test-on-Demand
System Config
Select OK To Change
5.2.5.2.10 Relay 8 (Amber Strobe)
The optional Amber Strobe Relay 8 can be set as latching or non-latching and
normally energized or normally de-energized. The activation time delay for the
relay can also be adjusted. See Section 4.6.
Amber Strobe-Relay8
> Calibration Mode
Maintenance Mode
> Non-Latching
Norm
DataDe-energized
Review
Time
Delay
Test-on-Demand
System Config
Select OK To Change
5.2.5.3 4/20 mA Adjustment
The 4/20mA adjustment menu provides the capability of adjusting the 4mA,
20mA, and 1mA fault output current using the ▼ and ▲ control arrows. To
use this feature you must have a current monitor (or equivalent device)
connected to the Monitor and the 4/20mA output loop active.
4/20
mA Adjustment
Mode
> Calibration
Maintenance Mode
> 4Data
mA Review
20 mA
Test-on-Demand
1 mA
System Config
.
Page 98
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
5.2.5.4 Adjust Date/Time
Allows the system clock and date format to be set. The two available date
formats are “DD/MM/YY” and “MM/DD/YY.” When setting or adjusting the
date & time, screens are presented in the following sequence: Month, Date,
Year, Hour, Minute. Note: The month and date screens are reversed when
the “DD/MM/YY” format is selected. The system clock is always in a 24 hour
format.
>Adjust
Calibration
Mode
Date/Time
Maintenance Mode
> MM/DD/YY
Format
Data Review
DD/MM/YY
Format
Test-on-Demand
System Config
04/26/06
16:33:37
5.2.5.5 Communication Setup
This menu provides adjustment for both standard and optional installed
communications methods. Options installed will be displayed. If there are no
optional communications installed, this screen will indicate “No Comm
Installed”.
Possible options are
Hart Comm
Modbus Comm
5.2.5.5.1 4-20mA Communications
The 4-20 mA Communications menu allows the unit to send the SensAlert
identification and configuration message “SensAlert Sensor ID”. It is used to
allow the Monitor to identify itself to SensAlert controllers. If you do not have a
SensAlert controller installed select “None” from the menu.
Communication
Setup
> Calibration Mode
Maintenance Mode
> 4/20mA
Communication
Data Review
Modbus Comm
Test-on-Demand
System Config
4/20mA
communication
Mode
> Calibration
None
Maintenance Mode
> SensAlert
Sensor ID
Data Review
Test-on-Demand
System Config
5.2.5.5.2 No Comm Installed
If an optional communication board is not installed.
No Comm Installed
> Calibration Mode
Maintenance Mode
No Communication
Data Review
Board Installed
Test-on-Demand
System Config
Document No. 360-0126-01 (Rev. D)
Page 99
SensAlarm Plus – Universal Gas Monitoring System
User Manual
5.2.5.5.3
HART Comm
No user adjustments available through this interface
HART Comm
Mode
> Calibration
NoMaintenance
User Adjustments
Mode
Through this Interface
Data Review
Use Current Loop
Test-on-Demand
System Config
5.2.5.5.4 Modbus Comm
The optional Modbus communication board allows the Monitor to
communicate on a Modbus RS485 2 or 4 wire network. User parameters that
can be modified are:

Modbus Address
001 – 255

Baud Rate
9600, 19200, or 38400

Parity
None, Odd, or Even

Stop Bits
1 or 2
Modbus Comm
> Calibration Mode
Maintenance Mode
> Modbus Address
Data Review
Baud Rate
Test-on-Demand
Parity
System Config
Stop Bits
5.2.5.6 ToD Mode Adjustment
The ToD Mode Adjustment menu allows you to enable and disable the
automatic testing mode, set the date & time for testing, set the number of
days between tests, set the cell intensity, and designate output & fault
indicators. Step-by-step instructions on using the functions in this menu are
described in Section 3.3.
ToD
Mode Adjustment
Mode
> Calibration
>Maintenance
Auto Mode Enable
Mode
Test Date/Time
Data Review
Days Between Tests
Test-on-Demand
Cell Intensity
System
Config
Output Indicators
5.2.5.7 Sensor Adjustment
Refer to Section 3.2 for more information.
Sensor Adjustment includes two functions: Selecting the calibration gas and selecting the K Factor. A K Factor
is used when the target gas is different from the calibration gas (Methane or Propane). Different K Factors are
used depending on whether a Catalytic Bead Combustible or Infrared Combustible sensor is installed, and
whether Methane or Propane is the calibration gas.
Use this interface to Set Sensor Adjustment configuration settings on Infrared and Catalytic Bead combustible
Sensors.
Page 100
Document No. 360-0126-01 (Rev. D)
User Manual
5.2.5.7.1
SensAlarm Plus – Universal Gas Monitoring System
No Adjustments Are Possible
If Toxic or Oxygen sensor installed,
No Adjustments Are Possible
5.2.5.7.2
Sensor
Adjustment
> Calibration
Mode
Maintenance
Mode
No
Adjustments
Data
Review
Are Possible
Test-on-Demand
Select
OK To Continue
System Config
Sensor Adjustment
Selections available if a Catalytic Bead or Infrared Combustible Sensor is
installed:
Select Cal Gas – Methane, Propane, or Other. Changing calibration gas on an
IR sensor will cause a Monitor reset to install different coefficients for the
sensor.
Select K-Factor – A selection of None will set the K-Factor to 1.00. A Custom
K-Factor will allow an adjustable K-Factor to entered.
Sensor
Adjustment
> Calibration
Mode
Maintenance Mode
> Select
Cal Gas
Data Review
Select
K
Factor
Test-on-Demand
System Config
5.2.5.8 Set Password
The Monitor comes from the factory without a password. When a password
is set the System Configuration menu cannot be accessed without first
entering the password. Other menu items in the Main Menu are still
accessible without a password.
To set a new password, select “System Configuration” from the Main menu.
Within the Systems Configuration menu select “Set Password.” The screen
at right will appear. To set a new password use the ▲ and ▼ arrow keys to
enter a number between 0 and 9.Select OK to set the number and move to
the next character.
Enter
New Password
Mode
> Calibration
Maintenance Mode
0XXXXX
Data Review
Test-on-Demand
6 Digits 0 - 9
System Config
Select << To Exit
Note
All passwords must be 6 characters long and consist only of the numbers 0
through 9.
A second screen will appear showing the number you have just entered,
followed by a “0” and “XXXX.” Use the ▲ and ▼ arrows to enter a number.
Select OK to set the number and move to the next character.
Enter
New Password
Mode
> Calibration
Maintenance Mode
Data Review
Test-on-Demand
6 Digits 0 - 9
System Config
10XXXX
Select << To Exit
Document No. 360-0126-01 (Rev. D)
Page 101
SensAlarm Plus – Universal Gas Monitoring System
Continue doing this until you reach the last digit. The screen will look
like the one on the right. When you have entered the last digit of the
new password select OK to set the new password.
User Manual
Enter
New Password
Mode
> Calibration
Maintenance Mode
Data Review
Test-on-Demand
6 Digits 0 - 9
System Config
123450
Select << To Exit
A screen will appear asking you to confirm your new password. Select
OK to save your new password.
Note
To change a password repeat the above steps by entering six
different digits. To disable/delete your password repeat the above
steps but enter “000000” as your new password,
Note
If you lose your password go to “Lost Password” in the Main Menu
and select OK. A screen will appear (right) giving you a number to call
and a code number. Give the code number that appears on your
Monitor screen to the appropriate service person to reset your
password.
Note
The code at right is a sample code. The real code will change every
time you change your password.
> Calibration Mode
Maintenance Mode
ReviewEntered
New Data
Password
Test-on-Demand
Select
<< To
Cancel
System
Config
Select OK to Save
Password
> Lost
Calibration
Mode
Please
Call Sensidyne
Maintenance
Mode
At
727Review
530-3602
Data
Please
Provide
Test-on-Demand
This
System Code
Config
16653759
5.2.5.9 Reset Defaults
This will restore the Monitor to the Factory Default Values. The Monitor
restarts if OK is selected.
Reset Defaults
Mode
> Calibration
This will reset
all
Relays,
Alarms, Mode
and
Maintenance
FaultsReview
to Factory
Data
Default Values.
Test-on-Demand
System
Config
Select
OK To
Continue
Select << To Cancel
Page 102
Document No. 360-0126-01 (Rev. D)
User Manual
5.2.5.10
SensAlarm Plus – Universal Gas Monitoring System
Set Monitor Tag
The Monitor Tag is the text that appears at the top of the display on the Main
Display, Missing Sensor Display, and Sensor Warm up Display. The Tag
can hold up to 21 symbols. The symbols consist of upper case letters,
numbers, math symbols, and some punctuation symbols.
Mode
> Calibration
Set
Transmitter
Tag
Maintenance Mode
SENSALERT
Data Review Plus
Test-on-Demand
OK System
SelectsConfig
Character
Select << to
Cancel
The inverse character indicates the current selected location. Use the ▲ and
▼ arrow keys to scroll through the potential Symbols until you reach the
desired symbol. Select OK to select the present symbol and advance to the
Next location. Select << to go to a previous location. If the Selected location
is at the left edge of the display selecting << one more time will cancel any
changes to the Tag line. Selecting OK when the selected location is at the
right edge of the display will advance to the next screen.
Selecting OK will save the displayed Tag Line.
Selecting << will cancel the operation and retain the previous
Tag Line.
Calibration Mode
Set>Transmitter
Tag
Maintenance Mode
Data Review
SENSALERT
Plus
Test-on-Demand
OK To
Accept
Tag
System
Config
Select << to Cancel
Document No. 360-0126-01 (Rev. D)
Page 103
SensAlarm Plus – Universal Gas Monitoring System
6
User Manual
Product Numbers & Parts List
6.1 Monitors
Product Number
820-0301-01
820-0301-02
820-0301-03
820-0301-04
Description
Single Strobe
Single Strobe & Battery Backup
Dual Strobe
Dual Strobe & Battery Backup
6.2 Sensors
For a complete list of available sensors and ranges contact the factory.
6.3 Options & Accessories
Product Number
821-0204-02
821-0204-06
821-0206-01
821-0301-01
821-0302-02
821-0303-02
821-0203-01
7013154-1
7013154-2
7013227-1
Description
Test-on-Demand™ (Type C)
Test-on-Demand™ (Type S)
Test-on-Demand™ Cell Gasket
Remote Kit
HART Communication Board Field Install Kit - SensAlarm Plus
Modbus RS485 Communication Board Field Install Kit - SensAlarm Plus
Rainshield
Aspirator, encased (Brass)
Aspirator, encased (Stainless Steel)
SensAlert Four Channel Controller
6.4 Spare Parts
Product Number
821-0214-01
821-0215-01
821-0217-01
XXX-XXXX-XX
7017461
7013201-1
360-0126-01
Description
Sensor Shield
Sensor Gasket
Sensor Holder O-Ring
Mounting Plate (only)
Rigid / IMC Conduit Grounding Hub
Magnetic Screwdriver (with reversible screwdriver blade)
SensAlarm Plus User Manual
209-0032-01
206-0016-01
Fuses 5x20mm 2 Amps slow blow 250V
Battery SLA 12V 1.4 AH
Page 104
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
6.5 Calibration Equipment
Product Number
009827-1
7016929
7010032-1
7013885
821-0223-01
7016042
7015551
Description
Regulator (1 LPM), for use with all gases
Regulator (1 LPM), for use with NH3, Cl2, HCl, SO2, NO2
PVC Carrying Case (holds two gas cylinders, plus regulator, tubing & fitting)
Humidification Kit (Recommended for setting acid gas zero)
for use with Cl2, HCl, HF, NO2, and SO2
Calibration Plug
Tygon® Tubing, 3/16” ID x 5/16”, sold per foot
Teflon® Tubing, 1/4¼” OD, sold per foot
6.6 Zero Calibration Gases
Product Number
009824-15
009824-25
Description
Zero Gas for Oxygen (O2) or Infrared sensors, 100% Nitrogen (103L)
Zero Gas for all other sensors including Infrared, 20.9% O2 in N2 (103L)
6.7 Calibration Gases1
All calibration gases are in Aluminum or Steel cylinders containing either 58 SL or 103 SL of gas. PPM gas has an eight (8)
month shelf life and all other gases have a one (1) year shelf life. Select span gas level to prove alarm settings are
functioning. Gas is shipped with a Material Safety Data Sheet (MSDS). A NIST traceable calibration certificate is available
upon request.
Product Number
009824-68
009824-57
009824-38
009824-67
Description
Acetylene [C2H2], 1.25 %vol in Air
Ammonia [NH3], 25 ppm in Nitrogen (58L)
Ammonia [NH3], 50 ppm in Nitrogen (58L)
Ammonia [NH3], 300 ppm in Nitrogen (58L)
009824-5
009824-62
Carbon Dioxide [CO2], 5000 ppm in Air (103L)
Carbon Dioxide [CO2], 1.5 %vol in Nitrogen (103L)
009824-4
009824-65
009824-18
Carbon Monoxide [CO], 50 ppm in Nitrogen (103L)
Carbon Monoxide [CO], 100 ppm in Nitrogen (103L)
Carbon Monoxide [CO], 250 ppm in Nitrogen (103L)
009824-53
009824-34
009824-44
009824-41
Chlorine 3 [Cl2], 2 ppm in Nitrogen (58L)
Chlorine 3 [Cl2], 5 ppm in Nitrogen (58L)
Chlorine 3 [Cl2], 10 ppm in Nitrogen (58L)
Chlorine 3 [Cl2], 50 ppm in Nitrogen (58L)
Chlorine Dioxide [ClO2], (Zero gas & calibrated gas generator) 4
Some customers use Chlorine as a functional check gas. 2
1 Recommended practice for determining calibration frequency. Sensidyne equipment is tested and calibrated prior to shipment. After
installation and stabilization of the gas Monitor, qualified personnel should verify calibration by applying zero and span gases. This
procedure should be performed at commissioning, then repeated 30 and 60 days afterwards, with deviations in zero and span recorded. The
calibration or functional check interval can then be adjusted to suit that application’s conditions. For further information, please consult the
ISA Recommended Practices for gas detectors.
2 The use of functional check or surrogate gases do not represent actual calibration of the sensor with the target gas, and should not be
employed as such, unless the user has established a known, repeatable correlation with the target gas.
3 The humidification kit is recommended for setting the sensor zero, ONLY for acid gases.
4 Requires participation In Sensidyne's "Sensor Exchange Program" regarding these gases. Please contact factory for further information.
Document No. 360-0126-01 (Rev. D)
Page 105
SensAlarm Plus – Universal Gas Monitoring System
User Manual
6.7 Calibration Gases 1 (continued)
009824-6
009824-16
Diborane [B2H6], (Zero & Span gases) 4
Ethylene Oxide [C2H4O], 5 ppm in Nitrogen (58L)
Fluorine [F2], (Permeation Tube) 4
Germane [GeH4], (Zero & Span gases, Permeation Tube) 4
Hydrogen [H2], 2 %vol / 50 %LEL in Air (103L)
Hydrogen [H2], (ppm) Electrochemical, 500 ppm in Air (103L)
009824-56
009824-37
009824-41
Hydrogen Chloride 3 [HCl], 5 ppm in Nitrogen (58L)
Hydrogen Chloride 3 [HCl], 10 ppm HCl in Nitrogen (58L)
Hydrogen Chloride 3 [HCl], 50 ppm HCl in Nitrogen (58L)
009824-54
Hydrogen Cyanide3 [HCN], 10 ppm in Nitrogen (58L)
Hydrogen Fluoride [HF], (Permeation Tube) 4
009824-55
009824-9
009824-33
009824-10
Hydrogen Sulfide 3 [H2S], 5 ppm in Nitrogen (58L)
Hydrogen Sulfide 3 [H2S], 10 ppm in Nitrogen (58L)
Hydrogen Sulfide 3 [H2S], 25 ppm in Nitrogen (58L)
Hydrogen Sulfide 3 [H2S], 50 ppm in Nitrogen (58L)
009824-2
009824-3
Methane [CH4], 1.5 %vol / 30 %LEL in Air (103L)
Methane [CH4], 2.5 %vol / 50 %LEL in Air (103L)
009824-35
009824-43
009824-36
Nitric Oxide [NO], 30 ppm in Nitrogen (58L)
Nitrogen Dioxide 3 [NO2], 5 ppm in Nitrogen (103L)
Nitrogen Dioxide 3 [NO2], 10 ppm in Nitrogen (103L)
009824-63
009824-64
009824-13
009824-25
009824-1
009824-61
Oxygen [O2], 10 %vol in Nitrogen (103L)
Oxygen [O2], 18.5 %vol in Nitrogen (103L)
Oxygen [O2], 20 %vol in Nitrogen (103L)
Oxygen [O2], 20.9 %vol in Nitrogen (103L)
Ozone [O3], (Zero gas & calibrated gas generator) 4
Phosgene [COCl2], (Permeation Tube) 4
Propane [C3H8], 0.66 %vol / 30 %LEL in Air (103L)
Propane [C3H8], 0.95 %vol / 50 %LEL in Air (103L)
009824-58
009824-59
Phosphine [PH3], 0.5 ppm in Nitrogen (58L)
Silane [SiH4], 5 ppm in Nitrogen (58L)
009824-8
009824-39
009824-17
Sulfur Dioxide [SO2], 5 ppm in Nitrogen (58L)
Sulfur Dioxide [SO2], 10 ppm in Nitrogen (58L)
Sulfur Dioxide [SO2], 50 ppm in Nitrogen (58L)
009824-60
1 Recommended practice for determining calibration frequency. Sensidyne equipment is tested and calibrated prior to shipment. After
installation and stabilization of the gas Monitor, qualified personnel should verify calibration by applying zero and span gases. This
procedure should be performed at commissioning, then repeated 30 and 60 days afterwards, with deviations in zero and span recorded. The
calibration or functional check interval can then be adjusted to suit that application’s conditions. For further information, please consult the
ISA Recommended Practices for gas detectors.
2 The use of functional check or surrogate gases do not represent actual calibration of the sensor with the target gas, and should not be
employed as such, unless the user has established a known, repeatable correlation with the target gas.
3 The humidification kit is recommended for setting the sensor zero, ONLY for acid gases.
4 Requires participation in Sensidyne's "Sensor Exchange Program" regarding these gases. Please contact factory for further information.
Page 106
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
7 Appendix A: Declaration of Conformity
DECLARATION OF CONFORMITY
Certificate: SENSALARM PLUS UNIVERSAL GAS MONITOR
Issue 1 August 19, 2010
The undersigned declares that the products named in this certificate meet the provisions of the
European Communities Council Directives and Standards referenced on this document.
Product Type:
SensAlarm Plus
Part Number(s) :
820-0301-01, 820-0301-02, 820-0301-03, 820-0301-04
Manufacturer:
Sensidyne, LP
1000 112th Circle N, Suite 100
St. Petersburg, Florida 33716, USA
Intended Use:
Gas Detection
Conforming to the following standards:
EMC Directive 2004/108/EC
Emissions
EN 55022 Group 1, Class A
2006/A2:2007
ICES-003 Class A
FCC Part 15 per ANSI C63.4:2003 Class A
Immunity
EN 61326-1 :2006
IEC 61000-4-2:1995/EN61000-4-2:1995/A1:1998/A2:2001
IEC 61000-4-3:2006/EN61000-4-3:2006
IEC 61000-4-4:2004/EN61000-4-4:2004
IEC 61000-4-5:2005/EN61000-4-5:2006
IEC 61000-4-6:2003/A1:2004/A2:2006/EN61000-4-6:2007
IEC 61000-4-8:1993/EN61000-4-8:1994/A1:2001
IEC 61000-4-11:2004/EN 61000-4-11:2004
Product Safety Low Voltage Directive 2006/05/EC
EN 61010-1-2001
UL 61010-1 2005
CAN/CSA C22.2 No.61010-1-2004
Product Designation:
820-0301-01
Basic Single Strobe
820-0301-02
Single Strobe with Battery Back-up
820-0301-03
Dual Strobe
820-0301-04
Dual Strobe with Battery Back up
Date: 19th August 2010
Signed:
Name: Ed Rodgers
Title
Quality Assurance and Regulatory Affairs Manager Sensidyne, LP
Who is the natural and legal person responsibility for the design, manufacture, packaging and labeling before
the device is placed on the market under his own name, regardless of whether these operations are carried out
by the Manufacturer or on his behalf by a third party
Note
An original copy of this Declaration of Conformity is available upon request
Document No. 360-0126-01 (Rev. D)
Page 107
SensAlarm Plus – Universal Gas Monitoring System
User Manual
8 Appendix B: Specifications
General Specifications
Sampling System .................................................Diffusion
Non-Intrusive Magnetic Controls..........................OK, << (Go Back), ▲ , ▼
Monitor with Non-Metallic Enclosure
Mounting Requirement .........................................Wall mounted to stud, unistrut, or plate with supplied feet
Dimensions...........................................................9.75” (W) x 20.0” (H) x 6.4” (D)
248 mm (W) x 508 mm (H) x 163 mm (D)
with optional rain shield height 21.5” (546mm)
Weight Range.......................................................9.75-13.75 lbs / 4.4-6.3 kg
Electrical/Electronic Specifications
Power Input Requirements...................................20-30 VDC and or 100-240 VAC, 50/60 Hz
Current Consumption ...........................................DC 2.0 A maximum with relays and strobes energized
AC 1.5 A maximum
Output...................................................................4-20 mA into 600 ohms
User-selectable output current during calibration; ability to test
current loop and adjust output current at the 4 mA and 20 mA
extremes, and Fault Output Current
Relays...................................................................240V, 3A, 50/60 Hz
6A, 120V
6A, 24VDC Resistive
Check points.........................................................Enable reading of output current as 40–200 mV.
Transmission Link ................................................4–20 mA current, non-isolated 2 wires, sourcing
Optional: Modbus RS-485, 2 or 4 wires and HART
Fuses ...................................................................Replacement by service personnel only
2 Amp 5x20mm slow blow 250V
Batteries ..............................................................Sealed lead acid 12V 1.4 AH
Environmental
Temperature Range .............................................-4°F to 122°F / -20°C to 50°C
Humidity Range 0-90 %RH, non-condensing
Above ratings are subject to sensor limitations.
Ingress Protection ................................................NEMA 4X or 3R, IPX4 with battery option
Approvals:
Page 108
(Refer to Appendices A and D for full ratings)
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
9 Appendix C: Troubleshooting Guide
Symptom
Remedy
Unusual operation at installation of power
Display irregularities upon initial power
application.
Reset system by removing power, waiting 15 seconds and
reapplying power. Normal startup should be observed.
No Display
No power supplied to monitor
Open fuse
Measure AC voltage at TB1 power distribution board.
Measure DC voltage at TB2 power distribution board.
Check fuses 1-4 on power distribution board.
Cannot derive 40 mV at check points, but display shows zero
Wiring at TB1 of the main board is defective.
Check and correct wiring.
Zero control out of electronics Zero the Monitor. If unsuccessful replace electronics.
module is defective.
After “Zero OK”, display shows a slightly positive value instead of zero
Presence of target gas.
Normal operation.
After “Zero Failed” 2nd time, display shows a slightly positive value
Presence of target gas
A biased sensor (Ammonia or Hydrogen
Chloride) has not yet stabilized.
Incorrect battery board used
for biased sensor.
Sensor is damaged or defective.
Normal operation.
Biased sensors typically take longer to stabilize than nonbiased sensors, especially if the bias sensor has become
de-stabilized. A destabilized biased sensor may take up to
72 hours to re-stabilize.
Check to ensure proper battery bias board is used.
Replace suspect sensor with a backup sensor known to be
good. Repeat start-up procedure. If display shows slightly
positive value, gas is present. If display shows zero,
suspect sensor is bad.
Screen shows that span calibration has failed.
Calibration gas concentration is incorrect.
Sensor is defective.
Sensor Interface Assembly is defective.
Verify calibration gas concentration with a detector tube and
assure proper delivery of calibration gas to sensor
assembly.
Replace sensor assembly.
Replace Sensor Interface Assembly.
Monitor shows “Missing Sensor” on display.
Make certain sensor assembly is properly installed. This can
Sensor assembly is loose or missing. be tested by removing and reinserting the sensor. Make
certain sensor head unit is properly connected to the power
supply board.
Sensor board or interface is defective.
Document No. 360-0126-01 (Rev. D)
Contact Sensidyne for RMA.
Page 109
SensAlarm Plus – Universal Gas Monitoring System
User Manual
Monitor remains with “APPLY GAS NOW” on display.
Calibration gas is present.
Sensor or Monitor is defective.
Verify gas is correct type for sensor calibration.
Apply gas in normal operation. If no response, sensor is
defective. If response shown, Monitor is defective.
Monitor displays garbled characters.
Sensor assembly not correctly installed.
Remove sensor, wait 10 seconds, and then reinstall sensor
in sensor holder.
No gas concentration reading displayed on controller.
“SensAlert Sensor ID” has not be selected in
communications setup.
Go to System Configuration/Communication Setup/4-20 mA
Communication and select “SensAlert Sensor ID.”
Relay(s) assigned to alarm condition(s) do not activate.
Relays not assigned.
Verify that relay(s) desired for each alarm condition have, in
fact, been assigned. Go to System Configuration/Alarm
Settings/Alarm Functions/Alarms 1, 2, 3, and/or TWA.
“Relays assigned ______” will be displayed. Use the Add
Relay function to assign the relay(s) for that alarm.
Time delay is not set as
desired for each relay.
Go to System Configuration/Alarm Settings/Alarm
Functions/Relays 1, 2, 3, 4, and/or Warn current-Relay5 and
set the desired time delay for each relay.
Go to System Configuration/Alarm Settings/Alarm
Functions/Alarms 1, 2, 3, and/or TWA and enable the
alarm(s).
Go to System Configuration/Alarm Settings/Alarm
Functions/Alarms 1, 2, 3, and/or TWA and correctly set the
alarm(s) as ascending or descending.
Go to System Configuration/Alarm Settings/Alarm
Functions/Alarms 1, 2, 3, and/or TWA and correctly set the
alarm setpoint(s).
Alarm is disabled.
Alarm is incorrectly set as
ascending or descending.
Alarm setpoint has been incorrectly set.
Page 110
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
10 Appendix D: TUV Certification
Document No. 360-0126-01 (Rev. D)
Page 111
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User Manual
11 Appendix F: Returned Material Authorization
Sensidyne maintains an instrument service facility at the factory to provide its customers with both warranty
and non-warranty repair. Sensidyne assumes no liability for service performed by personnel other than
authorized Sensidyne authorized personnel. To facilitate the repair process, please contact the Sensidyne
Service Department in advance for assistance with a problem which cannot be remedied and/or requires the
return of the product to the factory. All returned products require a Returned Material Authorization (RMA)
number. Sensidyne Service Department personnel may be reached at:
Sensidyne, LP
1000 112th Circle N, Suite 100
St. Petersburg, FL 33716 USA
800-451-9444 • +1 727-530-3602
+1 727-538-0671 [Service Fax] email: [email protected]
All non-warranty repair orders will have a minimum fee assessed whether the repair is authorized or not. This
fee includes handling, administration and technical expenses for inspecting the instrument and providing an
estimate. However, the estimate fee is waived if the repair is authorized.
If you wish to set a limit to the authorized repair cost, state a “not to exceed” figure on your purchase order.
Please indicate if a price quotation is required before authorization of the repair cost, understanding that this
invokes extra cost and handling delay. Sensidyne’s repair policy is to perform all needed repairs to restore the
instrument to its full operating condition.
Repairs are handled on a “first in - first out” basis. Your order may be expedited if you authorize an expediting
fee. This will place your order next in line behind orders currently in process.
Pack the instrument and its accessories (preferably in their original packing) and enclose your return address,
purchase order, shipping and billing information, RMA number, a description of the problem encountered with
your instrument and any special instructions. All prices are subject to change without notice.
If this is the first time you are dealing directly with the factory, you will be asked to prepay or to authorize a
COD shipment.
Send the instrument, prepaid, to:
SENSIDYNE
1000 112th CIRCLE N, SUITE 100
ST. PETERSBURG, FL 33716 USA
ATTENTION: Service Department
RMA #:_______________________
SERVICE OPTIONS
The Sensidyne Service Department offers a variety of service options which will minimize costly interruptions
and maintenance costs. These options include initial training, on-site technical assistance, and full factory
repairs. Sensidyne has developed several programs which offer options best suited to your applications and
needs. For further information, contact the Sensidyne Service Department at the following numbers: 800-4519444 • +1 727-530-3602 • +1 727-538-0671 [Service Fax].
Page 112
Document No. 360-0126-01 (Rev. D)
User Manual
SensAlarm Plus – Universal Gas Monitoring System
12 Appendix G: Configuration Reference
Password is:
___000000_________ • Monitor P/N ____________ • Monitor S/N _________________
Sensor (Gas) ____**___ (Conc.) ____**_____ (P/N) ________________ ToD Cell P/N _______________
Calibration Gas Concentration ______**_______
ppm
%LEL
Communication Setup: 4-20 mA Communication
None
SensAlert Sensor ID
Boxes with
“X” indicate
default setting
%vol
ToD Mode Adjustment (** = Value depends on type of installed sensor)
Auto Mode Enable:
Disabled
Output Indicators:
None
Enabled • Days Between Tests___**__ • Cell Intensity ___**___%
4-20 Current Loop
Alarm Settings – Alarm Functions (** = Value depends on type of installed sensor)
Relays Assigned
Alarm 1
Alarm 2
Alarm 3
1 – Fail
2
3
4
5 – Warn Current
6 – Horn
7 – Red Strobe
8 – Amber Strobe
Enabled
Disabled
Ascending **
Descending **
Setpoint **
Release Offset **
____
______
______
______
15m
Average Time Adjust for TWA Alarm
______
______
30m
60m
Alarm Settings – Fault Functions (** = Value depends on type of installed sensor)
Relays
Head
Missing
Sensor
Sensor
Output Current
Assigned
1 – Fail
2
3
4
6 – Horn
7 – Red Strobe
8 – Amber Strobe
Enabled
Disabled
Fault Current
Current Delay
TWA Alarm
______
______
2h
4h
8h
Cal
Maint.
ToD
ToD
Fail
Sensor
Fail
End Of Life
Track
Mode
Mode
Fail
End Of Life
3.0mA
NA
3.0mA
NA
3.0mA
NA
3.0mA
10
3.0mA
10
3.0mA
NA
3.0mA
NA
3.0mA
10
3.0mA
10
Alarm Settings – Relay Status Functions
Relay Status Relay 1 - FailRelay 2
Norm Energized
Norm De-energized
Latching
Non-Latching
Time Delay(in secs)
Timeout Enabled
Timeout Disabled
Timeout Delay
10
Relay 3
Relay 4
Relay 5
10
10
10
Horn
30
Relay6
Relay7 Relay8
Red Strobe Amber Strobe
10
10
10
240
Methane
Select CMB Cal Gas **
Propane
Other _______________
Select K Factor ** (CB = Catalytic Bead, IR = Infrared)
CB-Methane
None
Hydrogen
Propane
Hexane
Butane
Methanol
Butadiene
Custom K Factor is:
CB-Propane
CB-Other
IR-Methane
IR-Propane
IR-Other
___
___
___
___
___
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SensAlarm Plus CONFIGURATION REFERENCE
Password is:
___ ___ ___ ___ ______ • Monitor P/N ____________ • Monitor S/N _________________
Sensor (Gas) _________ (Conc.) ___________ (P/N) ________________ ToD Cell P/N _______________
Calibration Gas Concentration _______________
ppm
%LEL
%vol
Communication Setup: 4/20 mA Communication
None
SensAlert Sensor ID
ToD Mode Adjustment
Auto Mode Enable:
Disabled
Output Indicators:
None
Enabled • Days Between Tests_______ • Cell Intensity ________%
4-20 Current Loop
Alarm Settings – Alarm Functions
Relays Assigned
Alarm 1
1 – Fail
2
3
4
5 – Warn Current
6 - Horn
7 – Red Strobe
8 – Amber Strobe
Enabled
Disabled
Ascending
Descending
Setpoint
Release Offset
______
______
Average Time Adjust for TWA Alarm
Alarm Settings – Fault Functions
Relays
Head
Assigned
1 - Fail
2
3
4
6 - Horn
7 – Red Strobe
8 – Amber Strobe
Enabled
Disabled
Fault Current
Current Delay
Alarm 2
Alarm 3
______
______
______
______
15m
30m
60m
TWA Alarm
______
______
2h
4h
8h
Missing
Sensor
Sensor
Output Current
Cal
Maint.
ToD
Fail
Sensor
Fail
End Of Life
Track
Mode
Mode
Fail
_____
NA
_____
NA
_____
NA
_____
_____
_____
_____
_____
NA
Relay 3
Relay 4
Relay 5
_____
_____
_____
_____
NA
ToD
End Of Life
_____
_____
_____
_____
Alarm Settings – Relay Status Functions
Relay Status Relay 1 - FailRelay 2
Norm Energized
Norm De-energized
Latching
Non-Latching
Time Delay(in secs)
Timeout Enabled
Timeout Disabled
Timeout Delay
_____
Horn
Relay 6
Relay 7 Relay 8
Red Strobe Amber Strobe
_____
_____
_____
_____
_____
Select CMB Cal Gas
Methane
Propane
Other _______________
Select K Factor (CB = Catalytic Bead, IR = Infrared)
CB-Methane
CB-Propane
CB-Other
IR-Methane
None
Hydrogen
Propane
Hexane
Butane
Methanol
Butadiene
Custom K Factor is:
___
___
___
Document No. 360-0126-01 (Rev. D)
IR-Propane
IR-Other
___
___
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Document No. 360-0126-01 (Rev. D)
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SensAlarm Plus CONFIGURATION REFERENCE
Password is:
___ ___ ___ ___ ______ • Monitor P/N ____________ • Monitor S/N _________________
Sensor (Gas) _________ (Conc.) ___________ (P/N) ________________ ToD Cell P/N _______________
Calibration Gas Concentration _______________
ppm
%LEL
%vol
Communication Setup: 4/20 mA Communication
None
SensAlert Sensor ID
ToD Mode Adjustment
Auto Mode Enable:
Disabled
Output Indicators:
None
Enabled • Days Between Tests_______ • Cell Intensity ________%
4-20 Current Loop
Alarm Settings – Alarm Functions
Relays Assigned
Alarm 1
1 – Fail
2
3
4
5 – Warn Current
6 - Horn
7 – Red Strobe
8 – Amber Strobe
Enabled
Disabled
Ascending
Descending
Setpoint
Release Offset
______
______
Average Time Adjust for TWA Alarm
Alarm Settings – Fault Functions
Relays
Head
Assigned
1 - Fail
2
3
4
6 - Horn
7 – Red Strobe
8 – Amber Strobe
Enabled
Disabled
Fault Current
Current Delay
Alarm 2
Alarm 3
______
______
______
______
15m
30m
60m
TWA Alarm
______
______
2h
4h
8h
Missing
Sensor
Sensor
Output Current
Cal
Maint.
ToD
Fail
Sensor
Fail
End Of Life
Track
Mode
Mode
Fail
_____
NA
_____
NA
_____
NA
_____
_____
_____
_____
_____
NA
Relay 3
Relay 4
Relay 5
_____
_____
_____
_____
NA
ToD
End Of Life
_____
_____
_____
_____
Alarm Settings – Relay Status Functions
Relay Status Relay 1 - FailRelay 2
Norm Energized
Norm De-energized
Latching
Non-Latching
Time Delay(in secs)
Timeout Enabled
Timeout Disabled
Timeout Delay
_____
Horn
Relay 6
Relay 7 Relay 8
Red Strobe Amber Strobe
_____
_____
_____
_____
_____
Methane
Select CMB Cal Gas
Propane
Other _______________
Select K Factor (CB = Catalytic Bead, IR = Infrared)
CB-Methane
CB-Propane
CB-Other
IR-Methane
None
Hydrogen
Propane
Hexane
Butane
Methanol
Butadiene
Custom K Factor is:
___
___
___
Document No. 360-0126-01 (Rev. D)
IR-Propane
IR-Other
___
___
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13 Appendix H: Mounting Drawings
Document No. 360-0126-01 (Rev. D)
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Mounting Dimensions: Monitor With Fiberglass Enclosure
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Manufactured by:
Sensidyne, LP
1000 112th Circle N, Suite 100
St. Petersburg, Florida 33716
USA
800-451-9444 • 727-530-3602 • 727-539-0550 [fax]
www.Sensidyne.com • [email protected]
Authorized EU Representative
Schauenburg Electronic Technologies GmbH
Weseler Str. 35 · 45478
Mülheim-Ruhr Germany
+49 (0) 208 9 99 10 • +49 (0) 208 5 41 10 [fax]
www.schauenburg.com • [email protected]
Sensidyne, LP
1000 112th Circle N, Suite 100
St. Petersburg, Florida 33716 USA
800-451-9444 • +1 727-530-3602 • +1 727-539-0550 [fax]
web: www.sensidyne.com • e-mail: [email protected]
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