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Model 5100-XX-IT
IT Series
Toxic Gas Sensor Module
5100-03-IT
5100-10-IT
APPLICABILITY & EFFECTIVITY
Effective for all systems manufactured after May 2017.
5100-04-IT
5100-12-IT 5100-21-IT
5100-05-IT (FM Approved) 5100-06-IT
5100-25-IT 5100-26-IT
5100-08-IT
5100-88-IT
Manual # T12020
Document Revision: D4
Model 5100-XX-IT Toxic Gas Sensor Module
©2017 Sierra Monitor Corporation. All rights reserved.
Manual Number: T12020
This manual contains intellectual property that was developed by Sierra Monitor Corporation and is protected by the copyright laws of the United States, international copyright treaties, and all other applicable national laws. This manual contains information regarding technology that is protected under one or more issued or pending United States and foreign patents.
Sierra Monitor and Sentry IT are trademarks of Sierra Monitor Corporation. All other trademarks are the property of their respective owners.
This manual is licensed to users of Sierra Monitor products and may be copied, in whole or in part.
The offices of Sierra Monitor are located at:
Sierra Monitor Corporation
1991 Tarob Court
Milpitas, CA 95035
USA
Customer Service:
Telephone: (408) 262-6611
Fax: (408) 262-9042
Toll-Free: (800) 727-4377
Email: [email protected]
Website: www.sierramonitor.com
Page 2 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
FM PERFORMANCE APPROVAL
ONLY THE FOLLOWING ITEMS, FUNCTIONS AND OPTIONS ARE FM * APPROVED
Model 5100-05-IT Hydrogen Sulfide Gas Sensor Module
Sensor Module
Model 5100-05-IT
Calibration Equipment
Model 1250-01
Model 1260-05
Model 1260-45
Model 5358-01
Sensor Module - Hydrogen Sulfide
Gas Sensor Calibration Kit, Type A
Hydrogen Sulfide in N2, 25 ppm Gas Cylinder
Hydrogen Sulfide in N2, 10 ppm Gas Cylinder
Calibration Adapter
Notes:
1) Apparatus must be installed in accordance with National Electrical Code.
2) FM Comments
* FM Approvals, a subsidiary of FM Global
Project# 3034435
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Model 5100-XX-IT Toxic Gas Sensor Module
TABLE OF CONTENTS
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Model 5100-XX-IT Toxic Gas Sensor Module
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Model 5100-XX-IT Toxic Gas Sensor Module
LIST OF FIGURES
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Model 5100-XX-IT Toxic Gas Sensor Module
PRODUCT DESCRIPTION
1.1 General
The Model 5100-XX-IT Toxic Gas Sensor Module is a smart transmitter and member of the IT Series family and it offers a broad array of features including:
•
Integral alphanumeric LED display
•
Up to 180 day calibration frequency
•
FM Approval for performance and safety
•
SIL-2 Certified
•
Optional integral alarm relays (3)
•
4-20 mA output
•
Modbus ® RTU interface 1
•
SMC Sentry interface
•
Optional HART interface
•
316 Stainless steel enclosure option
•
Remote sensor option
•
Low maintenance and operation costs
•
ATEX Approval (5100-05-IT)
The 5100-XX-IT is designed and approved for installation and operation in hazardous locations. Members of the
5100-XX-IT Series Toxic Gas family include:
•
5100-03-IT Oxygen Gas Sensor Module
•
5100-04-IT Carbon Monoxide Gas Sensor Module
•
5100-05-IT Hydrogen Sulfide Gas Sensor Module
•
5100-06-IT Chlorine Gas Sensor Module
•
5100-08-IT Chlorine Dioxide Gas Sensor Module
•
5100-10-IT Sulfur Dioxide Gas Sensor Module
•
5100-12-IT Nitrogen Dioxide Gas Sensor Module
•
5100-21-IT Hydrogen Chloride Gas Sensor Module
•
5100-25-IT Ammonia Gas Sensor Module
•
5100-26-IT Hydrogen Fluoride Gas Sensor Module
•
5100-88-IT Carbon Dioxide Gas Sensor Module
1 ® Registered trademark of Schneider Electric
Page 7 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
1.2 Product Configuration
Various module mounting configurations can be implemented without special fixtures. Where applicable, these options are factory configured prior to shipment. Mounting configuration can be selected by the installer or field technician and are fully described in this manual. Sensor must always be oriented downward.
1.3 Theory of Operation
Electrochemical sensors are fuel cell-like devices consisting of an anode, cathode, and electrolyte. The components of the cell are selected so a subject gas, allowed to diffuse into the cell, will cause a chemical reaction and generate a current. The cells are diffusion limited so the rate the gas enters the cell is solely dependent on the gas concentration. The current generated is proportional to the rate of consumption of the subject gas in the cell.
Sierra Monitor electrochemical sensors provide improved reliability by allowing the gas to diffuse into the sensor through a capillary port, rather than diffusing through membranes. The result is an extremely stable sensor with very low temperature and pressure coefficients and the capability to monitor gas as ppm.
1.4 Modes of Operation
1.4.1 Sentr y Interface
IT gas sensor modules can be installed on Sierra Monitor Sentry Model 5000 controllers Ver. 6.XX MFD after
9/1/95. When it is installed in a Sentry system the IT module must have a unique address which can be established by setting an address between 1 and 8 on the Module Address Switch accessible from the cover plate as illustrated in
. Figure 13 in this manual provides the wiring terminations for connections to the Sentry
controller.
NOTE: The Model # 5100-88-IT CO2 gas sensor module range is 0-5000 ppm. Therefore, the Sentry
Controller must be configured for a 0-100 % full scale input. The Sentry cannot display engineering units up to 5000. The alarm set points need to be set as a percentage of full scale. For example, a 2500 ppm alarm set point is equal to 50% scale.
When the module is operated in conjunction with a Sentry controller, the alarm relay set-up ( Section
be set to “Sentry”, allowing the Sentry controller to manage alarm relay action rather than the 5100-XX-IT Gas
Sensor Module.
1.4.2 Modbus Operatio n
An RS-485 Modbus RTU serial interface allows direct connection to standard PLCs and DCSs. The Module
Address Switch ( Section
) allows the user to select up to 15 different Modbus addresses. Also, an additional
254 Modbus addresses are available via menu selection. Figure 13 in this manual provides the wiring
terminations for Modbus connections. The 5100-XX-IT provides the wiring terminations for Modbus connections.
1.4.3 Analog Operation
The analog 4-20 mA interface allows direct connection to standard controller and distributed system. The module is an active current source.
The standard configuration is set up for a 3-wire non-isolated connection. An optional 4-wire isolated connection
is also available and can be enabled by changing JP1 and JP2. ( Figure 12 )
1.4.4 Rem ote Sensor
The Remote Sensor option can be used to remotely mount some sensors up to 15’ from the transmitter. Refer to
Appendix E for allowable distances.
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Model 5100-XX-IT Toxic Gas Sensor Module
1.4.5 HART Connection
A HART interface option is available. Refer to
1.4.6 Rem ote Alarm Reset
connecting the remote alarm reset. This only resets local alarms, not Sentry alarms.
1.4.7 Optional Integral Rela ys
The optional relays are integral to the gas sensor module and are rated as SPDT, 250V AC, 5 Amps* for the High
Alarm and Low Alarm relays and SPDT, 250V AC, 0.25 Amp for the Trouble relay.
* HART option alarm relays are all SPDT, 250V AC, 2 Amp
If the gas sensor module is provided with the optional relays, it will include Terminal P4 on the interface board
( Figure 9 and Figure 10 ). Relay output connections are on P4.
1.5 Mechanical
The sensor module is comprised of the following three primary components:
1.5.1 Enclosure
covers have a viewing window. The design of the enclosure allows 3-way mounting choices as shown in
Figure 1: Model 5100-XX-IT Toxic Gas Sensor Module
– Mounting Options
NOTE: Module installation must be such that it is mounted vertically with sensor pointing downward.
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Model 5100-XX-IT Toxic Gas Sensor Module
Figure 2: Model 5100-05-IT-S1/S2 Toxic Gas Sensor
– Stainless Steel Enclosure, Dimensions
Figure 3: Model 5100-05-IT-A1/A2 Toxic Gas Sensor
– Cast Aluminum Enclosure, Dimensions
and Figure 3 are valid for all except 5100-25/26-IT. See Appendix H .
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Model 5100-XX-IT Toxic Gas Sensor Module
1.5.2 Transm itter Electronics
Electronic Assembly consisting of one printed circuit board assembly mounted under a cover plate, plugged into one field termination board. Connectors for wiring for power, signal interface and alarm relays are located on the bottom of the termination board .
1.5.3 Sensor Assem bly
The sensor assembly includes an explosion proof housing containing the gas sensor and a wiring harness for connection to the transmitter. The sensor assembly threads into one hub of the enclosure. The exposed end of the sensor assembly is threaded to allow connection of a rain-shield or calibration gas.
1.6 Interconnect Wiring
Not supplied with the sensor module, but necessary to the installation and operation is the shield cable which connects the module to its power source and controller. Before this wiring is installed it is important to read and understand the control system installation instructions to determine wiring requirements and alternatives.
1.7 Power Requirements
The modules operate on 24V DC power between 10V DC and 30V DC. Filtered, regulated DC power must be supplied from a separate source or from an approved Sentry or IT controller.
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Model 5100-XX-IT Toxic Gas Sensor Module
CAUTIONS & WARNINGS
2.1 Introduction
Although the IT Transmitter Modules are designed and constructed for installation and operation in industrial applications including “hostile” environments, caution should be taken to insure that the installation is made in compliance with this instruction manual and that certain procedures and conditions are avoided. This chapter discusses the necessary cautions. Read the entire chapter prior to installation of the equipment.
2.2 Gas Sensor Modules – General
Avoid installing sensor modules where they will be unnecessarily exposed to wind, dust, water (i.e. direct hose down), shock, or vibration. Observe temperature range limitations.
Sensors may be adversely affected by prolonged exposure to certain materials. Loss of sensitivity, or corrosion, may be gradual if such materials are present in low concentrations. These materials include: Halides (compounds containing chlorine, fluorine, bromine, iodine), acid vapors, caustic liquids or mists.
Care has been taken by the manufacturer to ship modules in protective packaging to avoid contamination prior to installation. It is recommended that the modules remain protected during installation and that the covering be removed immediately prior to system start-up.
During normal use the O
2
, CO, H
2
S, and SO
2
sensors are protected from dirt and oil contamination by a sintered metal cover. If this cover becomes clogged, the response of the sensor will be reduced. Protect the sensor from contamination by careful placement, or by use of rain shields and dust shields.
Sensor modules must not be painted. Paint may contain compounds which will contaminate the sensor. Paint will cause clogging of the sintered metal cover and will cause difficulties during attachment of the calibration head or other maintenance activity. It is recommended that the module be tagged "DO NOT PAINT" .
2.3 Wiring Warnings
The manufacturer recommends that extra caution be taken where the installation is near any sources of electromagnetic or radio frequency interference. Precautions include:
•
Avoid running sensor module cable close to high power cables, radio transmission lines, or cables subject to pulses of high current.
•
Avoid running cables near large electric motors or generators.
•
When the sensor module is to be operated in analog (4-20mA output) mode shielded cable is required.
•
When shielding is used, it is recommended that shields be grounded at the controller and nowhere else.
•
All splices must be via either a termination hardware system or soldered. Improperly spliced cable can result in corrosion, resistance changes and system errors. The use of wire nuts and crimp-on connectors is unacceptable.
NOTE: Installation and wiring must be in accordance with the National Electrical Code. Voltage AC conductors are not to be run in the same conduit as voltage DC conductors.
2.4 Calibration Frequency
The H2S calibration frequency is six months or 180 days. However, prudent gas detector maintenance practices normally suggest a simple recalibration following incidences of exposure to high levels of gas that would lead to alarm activation within any system utilizing the output of the gas sensor module.
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Model 5100-XX-IT Toxic Gas Sensor Module
QUICK START
3.1 Overview
The gas sensor module has been supplied factory calibrated and ready for immediate installation and operation.
An installer familiar with installation and operation of gas detection products can use this section to begin immediate use of the module.
3.2 Wiring
See
to determine if 3-wire or 4-wire operation is necessary.
Provide two conductor twisted shielded wiring from the power supply/control device to the sensor module location.
Use wire that is 18 AWG or larger.
3.3 Module Installation
which configuration is best for your specific application. The default configuration enables the modules to be put in line with other modules with the sensor element below the transmitter. To change the configuration simply remove the transmitter and rotate to the appropriate configuration and remount the standoffs and transmitter.
The module is designed to be installed on a ¾” NPT or M20 conduit. During installation heed the following:
•
The installation must meet any hazardous environment codes for electrical equipment.
•
The sensor module enclosure mounting must be spaced far enough from any vertical surface to allow removal and replacement of the sensor assembly which is threaded into one ¾” conduit entry.
•
Sensor housing must be oriented vertically pointing downward.
•
If module is installed outdoors it is recommended that it be sheltered from direct sunlight.
3.4 Transmitter Installation
To install the transmitter printed circuit assembly into the housing, carefully turn the faceplate so that the printing is in the correct horizontal position for the mounting configuration and slide the assembly over the two stand-offs in the enclosure.
Hand tighten the two captive panel thumb screws into the stand-offs. Replace the enclosure cover prior to providing power to the transmitter.
NOTE: If the transmitter is installed in a classified hazardous area, replace the threaded cover prior to providing power.
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Model 5100-XX-IT Toxic Gas Sensor Module
3.5 Startup and Operation
To begin operation of the sensor module, activate the instrument loop with 10-30V DC. Each time the sensor module is powered up it will perform a warm-up for approximately 1.0 minutes (60 seconds). During this time the display will read “Starting”. The loop output will be held at 4 mA.
NOTE:
If the sensor is uncalibrated, the startup display will state “UNCALIB” instead of “STARTING”.
NOTE: The 5100-06-IT, 5100-08-IT, 5100-25-IT, 5100-26-IT and 5100-88-IT require 300 seconds warm-up period. After the warm-up period has expired, the display will indicate the gas concentration. Also, the instrument loop will be released to output current in the range of 4 to 20 mA. The actual current is linear with the gas concentration and depends on the selected range. For instance, when the range of 0 to 50 PPM has been selected, a current of 4 mA corresponds to 0 PPM and a current of 20 mA corresponds to 50 PPM.
3.6 Zero Stabilization
All electrochemical sensors require at least 30 minutes on power prior to calibration. This allows the electrode potentials to equilibrate, resulting in a stable zero signal level.
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Model 5100-XX-IT Toxic Gas Sensor Module
INSTALLATION
4.1 Sensor Module Locations
NOTE: All IT modules are factory pre-configured and calibrated. All modules are tagged to indicate the configuration including the sensor module number Identify all components during unpacking and install using the factory configuration.
The gas sensor module utilizes a diffusion type sensor which should be located close to either the expected source or destination of the gas hazard. If the gas is heavier than air, the sensor module should be installed within 24 inches of the ground or floor. If it is lighter than air, move it above
6’.
Model
N/A
5100-04-IT
5100-05-IT
Gas
Air
CO
H
2
S
Gas Density
1.00
0.97
1.19
After optimum locations are determined based on the above recommendations, consideration should be given to placing the sensor modules in locations which are accessible for calibration service. Slight adjustments to the location of the sensor module may have little impact on effectiveness but major effect on accessibility.
5100-06-IT Cl
2
5100-08-IT ClO
2
5100-10-IT
5100-12-IT
SO
2
NO
2
2.49
3.09
2.26
2.12
•
Modules should be placed close to the potential source of gas.
•
Modules should be placed in areas accessible for calibration.
5100-21-IT
5100-25-IT
HCl
NH
3
1.27
0.60
•
Sensors should be pointed down and the conduit should include an inverse trap to reduce moisture (condensation) from accumulating in the electronics enclosure.
5100-26-IT
5100-88-IT
HF
CO
2
1.86
1.53
Figure 4: Specific Gravities
•
Remote calibration fitting (5360-00) should be used to facilitate calibration gas delivery. Run polyurethane tubing (1/4” O.D. x 1/8” I.D.) from fitting to an accessible location.
Figure 5: Typical Mounting Options
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Model 5100-XX-IT Toxic Gas Sensor Module
4.2 Wiring
4.2.1 Analog 4-20 m A Operation
For a 3-wire non-isolated connection, set jumpers, located on the bottom of the transmitter board, to the lower
3-wire connection, a minimum of an 18 AWG, 3-conductor shielded cable must be used. A cable shield must never be used as a conductor. Larger gauge wire is recommended with distances over 1000’. Connect wires as
For a 4-wire isolated connection, set jumpers, located on the bottom of the transmitter board, to the upper position
connection, a minimum of 2 each of an 18 AWG, 2 conductor twisted/shielded pair cable must be used. A cable shield must never be used as a conductor. Larger gauge wire is recommended with distances over 1000’.
Connect wires as shown in Figure 10 .
4.2.2 Modbus Operation Using R S-485 Connection
Use a minimum of 18 AWG, 2-conductor for DC power connection. No shield required. In addition, use a minimum of 24 AWG, low capacitance, shielded data cable for RS485 half-duplex communication. The installation may be planned in a manner which provides up to 32 sensor modules on a single home run.
Standard default RS485 Settings are: 38,400 baud, 8 bits, 1 stop bit, no parity
4.2.2.1 Termination Resistor Jumpers
Termination resistors are used in RS-485 wire runs to provide impedance matching. The IT series modules use a
120 Ohm resistor for this function. The cable being used for this RS-485 connection must have a minimum of 100
Ohm impedance with a maximum of 120 Ohms.
Installations whe re the cable length is under 100’, termination resistors may not be required. In installations where the cable length is greater than 100’, it is recommended to place the termination jumpers on the first device and last device on the RS-485 wire run. Termination jumpers must be removed from all other modules connected between the first and last device. The first device in the RS-485 multiplexed bus is usually a gas controller or
PLC. Factory term resistor setting is “not enabled.”
4.2.2.2 Bias Jumpers (BIAS A, BIAS B)
Bias resistors are used to force RS-485 receiver outputs to a known (fail-safe) state, when the bus is idle. Bias jumpers are always installed in pairs as the bias must be placed on both the TX A and TX B lines. Sierra Monitor’s
IT series of toxic gas sensors automatically apply the bias jumpers, and are factory installed so that the bias is always enabled.
4.2.3 Sentr y Operation Using Sentr y Connection
See Figure 13 . Use a minimum of 18 AWG, 3-
conductor cable up to 2000’. The cable may or may not be shielded. We recommend shielded cable in circumstances that there could be RF or EM interference present.
Shield to be terminated and grounded only at the Sentry controller. Shield must be cut and dressed at the module end so that no part of it comes in contact with the conduit or ground.
NOTE: Be sure to follow all local electric code and safety requirements when installing the 5100-XX-IT
Gas Sensor Module .
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Model 5100-XX-IT Toxic Gas Sensor Module
4.2.4 General
Install conduit as required by local code or construction specifications. Provide for splice boxes where multiple modules will be wired to a single run. Pull conductors of the correct gauge wire from the controller to each splice box and from the respective splice box to each planned module location. See for proper wire termination in the splice box. Twisted wire secured with wire nuts is not an acceptable splice.
NOTE: The drain wire of shielded cable must NOT be used as one of the conductors. Installation and wiring must be in accordance with the National Electrical Code. Temperature rating of cable wire must be at least 75°C. If cable runs through higher temperature environments, it must be specified for that environment.
4.3 Enclosure Installation
To protect the transmitter and sensor assembly they should be removed from the enclosure and preserved until final installation and wiring termination.
Number of
Modules
1
2
3
4
Maximum Length of Wire Run (feet)
500 1,000 2,000 3,000
18
18
18
16
18
18
16
14
16
14
12
12
16
12 xx xx
Figure 6: Minimum Wire Gauges
5,000
14 xx xx xx
Prior to installation and wiring complete the following steps.
1. Remove the transmitter from the module housing by: a) Unscrew the two captive panel screws on the faceplate. b) Lift the transmitter out of the enclosure. c) Unplug the sensor cable from transmitter connector P2. d) Remove the sensor assembly from the enclosure hub.
2. Install the module enclosure onto the end of the supply conduit and/or bolt into position as required.
NOTE: When enclosure earth grounding is required for the installation a grounding lug is located in the base of the enclosure. Install the earth ground under the green ground screw.
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Model 5100-XX-IT Toxic Gas Sensor Module
4.4 Transmitter and Sensor Installation
When all pre-wire is complete:
1. Install sensor assembly in the open hub on the module enclosure. The sensor assembly thread must be fully seated into the hub and tightened to maintain explosion proof assembly.
2. Connect the wires which return to the controller to interface board connectors P1, P2, P3 and P4 according to
Figure 9 and as detailed in the connector tables below.
3. Connect the sensor assembly cable to top transmitter board connector P2.
4. Align the headers between the top transmitter board and the lower interface board then push together.
5. Turn the rotary switch to correct sensor address if required.
6. Carefully return the transmitter to the enclosure, installing it over the two standoff’s. Tighten the retaining screws into the stand-offs.
7. Cycle power to accept module address change.
8. Establish the module address according to
1
2
3
4
5
6
1
2
3
P1
1
2
3
4
5
6
7
4
5
6
PCB Label
Switch
4-20
Function
IN + Digital Input SW +
IN - Digital Input SW -
IN + 4-20 mA Input +
IN - 4-20 mA Input -
GND Ground
OUT + 4-20 mA Output +
4-20
OUT - 4-20 mA Output -
P2
+
-
S
RS 485
+
-
S
RS 485 (+) (A)
RS 485 (-) (B)
RS 485 shield (Isolated GND)
RS 485 (+) (A)
RS 485 (-) (B)
RS 485 shield (Isolated GND)
P3B
P
S
G
P
S
G
V DC Power
Sentry Signal or
Communication
V DC Ground
P3A
V DC Power
Sentry Signal or
Communication
V DC Ground
P4*
1
2
3
4
PCB Label
WARNING
Function
N/C Low Alarm Relay NC
COM Low Alarm Relay COM
N/O Low Alarm Relay NO
N/C High Alarm Relay NC
5
6
7
ALARM COM High Alarm Relay COM
N/O High Alarm Relay NO
N/C Trouble Alarm Relay NC
8
9
TRBL** COM
N/O
Trouble Alarm Relay COM
Trouble Alarm Relay NO
* P4 Connections are installed only when the optional
Relays are included
** Trouble relay is a fail-safe so it is energized for normal operation, functions are labeled for normal operation.
NOTE: The starting delay period normally takes approximately 3 minutes but under some circumstances can take longer. For optimum performance, it is recommended that a calibration be performed after 24 hours of operation.
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Model 5100-XX-IT Toxic Gas Sensor Module
4.5 Module Address Switch
For digital interface applications the module address switch (or Modbus node)
Figure 8 must be set per the table
below.
Position Address Position Address
5
6
7
8
1
2
3
4
Sensor 1
Sensor 2
Sensor 3
Sensor 4
Sensor 5
Sensor 6
Sensor 7
Sensor 8
9
A
B
C
D
E
F
0
Sensor 09
Sensor 10
Sensor 11
Sensor 12
Sensor 13
Sensor 14
Sensor 15
Software Menu
Figure 7: Sensor Module Address Switch Positions
NOTE: For Sentry (PSG) applications only sensor addresses 1-8 are allowed. If using Modbus output sensor addresses 1-15 are available. Position 0 allows the Modbus Address to be set by software menu, in the range 16-254.
Figure 8: Transmitter Face Plate
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Model 5100-XX-IT Toxic Gas Sensor Module
Figure 9: Interface Board Connectors
Figure 10: RS-485 – Termination, BIAS Jumper
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Model 5100-XX-IT Toxic Gas Sensor Module
Figure 11: mA Circuit Types
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Model 5100-XX-IT Toxic Gas Sensor Module
Figure 12: 4-20 mA Circuit Type Connections for 5100-XX-IT
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Model 5100-XX-IT Toxic Gas Sensor Module
5100-XX-IT TO SENTRY
(dry contact only unpowered)
5100-XX-IT TO MODBUS DEVICE
Figure 13: Wiring Connections for Modbus and Sentry Interface
Page 23 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
5100-XX-IT Remote Alarm Reset (Unsupervised)
(dry contact only unpowered)
5100-XX-IT Remote Alarm Reset (Supervised)
P1
+
+
+
4.7K OHM (CUSTOMER SUPPLIED)
SWITCH IN
+
SWITCH IN
-
Figure 14: Wiring Connections for Remote Alarm Reset
5100-05-IT REMOTE ALARM RESET (SUPERVISED)
Page 24 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
OPERATION
5.1 Introduction
The Gas Sensor Module utilizes a visual menu system operated by means of a magnet. A magnetic tool (5358-
50) is supplied for this purpose. The menu system is used to configure alarm set-points, calibrate the sensor module, and for maintenance procedures and alarms acknowledge.
5.2 Data Entry Keypad
The module menu system is operated by means of directing the magnet stick toward each of four independent hall-effect magnetic switches. Each switch functions as if it is a manually activated panel key. The keys are located under the faceplate above and below the LED display and are labeled M , E , and as shown in
Figure 15: Face Plate with Operator Keypad
Page 25 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
5.3 Main Menu
Key Function Display
M E
▲ ▼
M E
▲ ▼
M E
▲ ▼
M E
Mode
Enter
Up
▲ ▼
Down
M E
▲ ▼
M E
▲ ▼
M E
▲ ▼
M E
▲ ▼
5100-XX First screen at power up: Model No.
VXX-XX-- Second screen at power up: Version No.
STARTING Third screen at start up: Starting Delay
XXX PPM Normal condition - default display
Mode ALMRSET: Mode Function - Alarm Reset
Mode
RESET
CALIB:--
Switch [M]
Switch [E]
Alarm Reset
Description
Switch [▲] Previous Menu
Switch [▼] Next Menu
Banner: "Press [E] to reset alarm"
XXX PPM Default Display
Mode ALMRSET: Mode Function - Alarm Reset
Mode Function - Calibrate
M E
▲ ▼
M E
▲ ▼
M E
▲ ▼
M E
▲ ▼
Mode
Mode
Mode
Enter
SETUP:--
MAINT:--
EXIT-?--
Mode Function - Set up alarms, relays, etc
Mode Function - Maintenance
Exit Menu
Figure 16: Master Menu
Reference
XXX PPM Apply Selected Mode (Exit)
XXX PPM Default Display (Once a minute the sensor displays module address)
Figure 17 defines the key operational displays on the operator interface.
Display
STARTING
XXX PPM
LXXX PPM
HXXX PPM
HIGH
CXXX PPM
ACK
Description
Delay from loss of power at start-up
Concentration
Low Alarm (Warning)
High Alarm (Alarm)
Measures gas, concentration exceeds 100% of Full Scale
Calibration Mode
Acknowledged Function
Figure 17: Operation Display Values
NOTE: If display shows “Start” instead of “Starting”, the module must be calibrated before using it.
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Model 5100-XX-IT Toxic Gas Sensor Module
5.4 Set-Up
The sensor module set-points menu is used to initially set-up the alarm set points, relay actions, gas type and range, 4-20 mA action or RS-485/Sentry address and baud rates, Digital Input and Warmup time. Use the [▲] or
[▼] keys to select following menus and press [E] to select.
•
Alarms – U se the [▲] or [▼] keys to select Low Alarm (Warning) or High Alarm (Alarm) menu. Key [▲] will adjust the setpoint upwards and Key [▼] will adjust the value downwards. Once it reaches the desired setpoint, Key [E] will accept it and ACK will appear.
Set-points can be configured using this menu up to the following values:
Model
5100-03-IT
5100-04-IT
5100-05-IT
5100-06-IT
5100-08-IT
5100-10-IT
5100-12-IT
5100-21-IT
5100-25-IT
5100-26-IT
5100-88-IT
Factory Alarm Set Points
Warning
19.5%
50 PPM
10 PPM
2.0 PPM
0.3 PPM
10 PPM
2 PPM
5 PPM
25 PPM
2.0 PPM
1000 PPM
Alarm
16.5%
100 PPM
20 PPM
5.0 PPM
1.0 PPM
20 PPM
4 PPM
10 PPM
50 PPM
5.0 PPM
2500 PPM
NOTE: To enable rising O2 Alarm set warning setpoint higher than 20.9%
•
Relays – Use the [▲] or [▼] keys to select High Alarm (Alarm) or Low Alarm (Warning) relay menu and press [E]. Use the [▲] or [▼] keys to select the correct alarm relay action for the application, Latch,
Sentry or Non-Latch. Selecting “Sentry” enables the Sentry controller to make all alarm action decisions. * indicates the current selection.
•
Range – Use the [▲] or [▼] keys to select Range menu and press [E]. When “Range” is selected menu provides any choices of ranges available for the gas type selected. Use the [▲] or [▼] keys to select the desired range. If the “User” range is selected, use the [▲] or [▼] keys to adjust the high end of the range desired.
Model
5100-03-IT
5100-04-IT
5100-05-IT
5100-06-IT
5100-08-IT
5100-10-IT
5100-12-IT
5100-21-IT
5100-25-IT
5100-26-IT
5100-88-IT
Factory Range Set-up
Range
5-25%
0-500 PPM
0-100 PPM
0-10 PPM
0-3 PPM
0-100 PPM
0-20 PPM
0-20 PPM
0-100 PPM
0-10 PPM
0-5000 PPM
Other Available
0-25%
Variable
Variable
None
None
Variable
None
None
Variable
None
Variable
Page 27 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
•
4-20mA – Use the [▲] or [▼] keys to select Calib or CalibOut menu and press [E]. The “Calib” section of the menu allows the user to calibrate the 4 mA and 20 mA outputs. To calibrate the 4 mA and 20 mA outputs it is necessary to have an amp meter connected to the 5100-XX-IT and upon selecting the 4 mA output calibration then the [▲] or [▼] keys can be used to adjust the 4 mA reading on the amp meter until it reads 4 mA. Similar steps can then be performed for the 20 mA output. The CalibOut section allows the user to select the 4-20 mA output action desired during calibration. * indicates the current selected value.
Available selections include: o Track – the 4-20mA value tracks the calibration gas exposed to the gas sensor module o C2.50mA
– the 4-20mA value is held at 2.50mA during calibration o C4.00mA
– the 4-20mA value is held at 4.0mA during calibration
•
RS-485 – Use the [▲] or [▼] keys to select Address or Baud rate menu and press [E]. Note that the
5100-XX-IT has a rotary switch on the faceplate and it is used to select addresses 1-15. When connected to Sentry the user can select 1-8 and when using Modbus RS-485 the user can select addresses 1-15.
For Modbus addresses above 15, set the rotary switch to 0 and then use the “Address” menu to select any address between 16 and 254. The Baud rate menu allows the user to select a baud rate of 38400,
19200, 9600, 4800 or 2400. * indicates current selection. The Sentry default is 9600.
•
DigInput – Use the [▲] or [▼] keys to select supervised or Non-supervised digital input and then press
[E] to change.
Key
M
▲
M
▲
M
▲
M
▲
M
▲
M
▲
M
▲
E
▼
M
▲
E
▼
E
▼
E
▼
E
▼
E
▼
E
▼
E
▼
Function
Mode
Mode
Mode
Enter
Down
Down
Down
Down
M
▲
M
▲
M
▲
M
▲
E
▼
E
▼
E
▼
E
▼
Enter
Enter
Down (x5)
Enter
M
▲
M
▲
M
▲
M
▲
M
▲
E
▼
E
▼
E
▼
E
▼
E
▼
Enter
Down
Enter
Down
Down
Display Description
--0%LEL- Default Display
ALMRSET: Mode Function - Alarm Reset
CALIB:-- Mode Function - Calibrate
SETUP:--- Mode Function - Set Point Adjustments
Alarms
Relays
Relays
4-20mA
Dig Input
S.P. Function - Alarm Adjust
S.P. Function - Relays Adjust
S.P. Function - Range Adjust
S.P. Function - 4-20 mA Adjust
S.P. Function - RS-485/Sentry Output Adjust
HASP:55-
ACK
H.Alarm
High Alarm Set Point Adjustment Example
H.Alarm
HASP:60-
S.P. Function - High Alarm Adjust
High Alarm Set Point: current = 60
Use ▲ or ▼ keys to adjust to new set point
High Alarm Set Point: new = 55
Momentary Acknowledge of new Set Point
S.P. Function - High Alarm Adjust
Relays Set Point Adjustment Example
H. Relay
L.Relay
Latch
Sentry
*Sentry
S.P. Function - High Alarm Relay Adjust *B
S.P. Function - Low Alarm Relay Adjust
Use
▲ or ▼ keys to adjust to new relay action (Latch,
Sentry, NonLatc) * indicates current
NOTE: Sentry indicates that Sentry controls relay action and not the IT Sensor Module
Low Alarm Relay set to Sentry
Figure 18: Set-Up Configuration Part 1
*A
Reference
* A Below
* B Below
* C Below
* D Below
* E Below
Page 28 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
M
▲
M
▲
M
▲
M
▲
M
▲
E
▼
E
▼
E
▼
E
▼
E
▼
Enter
Enter
Down
Down
Enter
Range
*100 PPM
10 PPM
USER
100 PPM
Gas Range Adjustment Example
S.P. Function - Range Adjust
Select [E] to select or ▲ or ▼ to select another and press [E]
Press [E] if selecting 0-10 PPM range
Press [E] if selecting User adjustable range
Select [E] to select or
▲ or ▼ to select another and press [E]
*C
4-20 mA Adjustment Example
M
▲
M
▲
M
▲
M
▲
M
▲
M
▲
M
▲
E
▼
E
▼
E
▼
E
▼
E
▼
E
▼
E
▼
Enter
Enter
Enter
Enter
Mode
Down
Enter
M
▲
E
▼
Enter
Calib
Out: 4mA
4mA
ACK
Calib
CalibOut
Track
*Track
S.P. Function - Calib Adjust
Use
▲ or ▼ keys to select 4 mA or 20mA
Selects 4 mA
Momentary Acknowledge of new Set Point
S.P. Function - Calib Adjust
*D
S.P. Function - Output during Calibration Adjust
Use
▲ or ▼ keys to select Track, C2.50mA, C4.00mA
Track = Output during calibration tracks the calibration gas,
C2.50mA = Output during calibration is 2.50 mA, C4.00mA = Output during calibration is 4.0 mA
* = Current selection
M
▲
M
▲
M
▲
M
▲
M
▲
M
▲
E
▼
E
▼
E
▼
E
▼
E
▼
E
▼
Enter
Enter
Enter
Enter
Down
Enter
RS-485 Adjustment Example
Address
Addr:016
ACK
Address
Baud
*38400
S.P. Function - RS-485 Address Adjust
Use ▲ or ▼ keys to enter new address
New address selected
S.P. Function - RS-485 Address Adjust
S.P. Function - RS-485 Baud Rate Adjust
Press [E] to select or ▲ or ▼ to select another
Figure 19: Set-Up Configuration Part 2
*E
5.5 Maintenance Sub-Menu
The maintenance menu enables the operator to view sensor and software versions. Sierra Monitor technical
Key
M
▲
M
▲
M
▲
M
▲
M
▲
M
▲
E
▼
E
▼
E
▼
E
▼
E
▼
E
▼
Function
Mode
Mode
Mode
Mode
Enter
Enter
Display
XXXPPM
ALMRSET:
CALIB:--
SETUP:-
MAINT:--
3.XX
CCC001
Description
Default Display
Mode Function - Alarm Reset
Mode Function - Calibrate
Mode Function - Set Point Adjustments
Mode Function - Maintenance
Module Software Version Number
Module Custom Configuration Control number
Figure 20: Maintenance Menu
Reference
Page 29 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
CALIBRATION
6.1 Calibration Frequency
The Gas Sensor Module has been calibrated in the factory prior to shipment. It is recommended that the user calibrate before placing into service. The sensor module must be calibrated every 180 days at a minimum.
Periodic functional tests are advisable for critical applications and hostile environments. Oxygen sensors will require more frequent adjustment.
The sensor module microprocessor software includes high-level self-checking algorithms which provide continuous sensor diagnostic and self-adjustment. Users may select to increase calibration frequencies based on low-drift experience during first two calibration periods.
6.2 Calibration Preparation
Calibration of the sensor is accomplished by simple menu based steps and application of span gas.
NOTE: If an error is made during any stage of the calibration process, hold the magnet stick at the [M] for
10 seconds. A scrolling display will indicate “calibration aborted” and the sensor module will exit the calibration activity and return to normal operating mode. The calibration procedure can then be restarted.
Calibration must be performed only when the area is known to be clear of the gas of interest. When in doubt, use a portable instrument to confirm that there is no background.
For compliance with Factory Mutual (FM) Approvals, the Sierra Monitor Model 1250-01, 1260 -05 and 1260-45 are the FM Approved calibration gas delivery devices. Use the Model 5358-01 Calibration Adapter delivery fitting.
for information on use of permeation tube for 5100-25-IT and Appendix H.2
for 5100-26-IT calibration.
6.3 Calibration Gas Delivery Methods
Calibration gas can be delivered to the sensors via the Model 5358-01:
Calibration Adapter ( Figure 21 ) - used with portable calibrators.
Calibration Procedure
The Calibration Menu is described on Figure 22 .
The procedure requires that the menu “keys” be activated using the magnet stick.
Each key press steps through the process of setting the zero value for clean air and then setting the span value.
At each of these steps, apply calibration gas of the value corresponding to the setting accepted on the sensor module display.
Figure 21: Model 5358-01
Calibration Adapter
Page 30 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
6.4 Sensor Exposure to Gas
Calibration gas must be delivered to the sensor using the flow rate and duration listed below:
Model
5100-03-IT
5100-04-IT
5100-05-IT
5100-06-IT
5100-08-IT*
5100-10-IT
5100-12-IT
5100-21-IT
5100-25-IT
5100-26-IT
5100-88-IT
5100-04-IT
Calibration Gas Flow Period
Air
Carbon Monoxide
Hydrogen Sulfide
Chlorine
Chlorine Dioxide
Sulfur Dioxide
Nitrogen Dioxide
Hydrogen Chloride
Ammonia
Hydrogen Fluoride
Carbon Dioxide
Carbon Monoxide
300 cc of Zero Air or exposure to Ambient Air (3 minutes)
300 cc/min Until Stable (minimum 3 minutes)
300 cc/min
300 cc/min
300 cc/min
300 cc/min
Until Stable (minimum 3 minutes)
Until Stable (minimum 3 minutes)
Until Stable (minimum 3 minutes)
Until Stable (minimum 3 minutes)
300 cc/min
300 cc/min
Until Stable (minimum 3 minutes)
300 cc/min
300 cc/min
Until Stable (minimum 3 minutes)
Until Stable (minimum 3 minutes)
* Use 5PPM Cl
2
to calibrate (set module to 1.5 PPM ClO
2
)
Page 31 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
6.5 Calibration Sub-Menu
M E
M E
M E
M
E
M
E
Key Function
M
E
M E
M E
M
E
M
E
M
E
Mode
Mode
Enter
Enter
Enter
Enter
Display
XXXPPM Default Display
Description
ALMRSET: Mode Function - Alarm Reset
CALIB:-- Mode Function - Calibrate
CAL-0PPM--
Banner: Apply zero gas, enter <E> when done (not applicable for
5100-03-IT)
Operation: Confirm area clear of gas, or apply zero air to sensor
ACK
10PPM-SP
Zero gas setting acknowledged
Banner: Select span, enter <E> to calibrate sensor
Banner: (5100-03-IT) Specify Cal gas <E> when done
C 4 PPM Banner: Apply span gas, then enter <E> to calibrate gas sensor
C 4 PPM Operation: Apply calibration gas
CXXXPPM Operation: As gas is applied the reading will increase - wait 3 minutes
CAL-OK Calibration Passed - now remove gas
WAIT-300 Operation: Five minute time out before sensor is returned to service.
Down
Down
Enter
Enter
Enter
Mode
Sub-Routines
10PPM-SP Banner: Select span, enter <E> when done
25PPM-SP Operation: Change Span Gas Value to 25PPM
Adj-SPAN Operation: User adjustable value
25PPM-SP Operation: Ready for user adjustment
C 25PPM Banner: Apply 25PPM gas, then enter <E> to calibrate gas sensor
C 25PPM Operation: Apply calibration gas
CAL-FAIL
Operation: No calibration gas applied, or sensor did not respond correctly.
WAIT-300 Operation: Five minute time out before sensor is returned to service.
(Any)
Operation: Hold magnet over Mode Switch for ten seconds to abort calibration
Banner: Calibration Aborted
XXXPPM Default Display
Figure 22: Calibration Sub-Menu
Reference
*
Sub A
Sub B
Sub A
Sub B
Sub C
Page 32 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
6.5.1 5100-03-IT Oxygen Deficiency
It is recommended to use fresh Air as the calibration source for the Oxygen detector. If the area is known to be safe with adequate air flow, you may use the surrounding Air to set the instrument span at 20.9 %. If the condition of the environment is unknown, then the customer may use a cylinder of Zero Air as the span gas. Please note that the Oxygen concentration contained in Zero Air cylinders may have anywhere from 20.0 to 21.0 % Oxygen as it is not a precise standard.
To calibrate the Oxygen sensor module, place the module into the calibration mode using the magnetic wand.
Press the Mode key until CALIB is displayed. Press Enter to begin. Select Calibration value to be 20.9%. Press
Enter to confirm. Apply span gas or use the surrounding Air then press Enter to complete procedure.
6.5.2 5100-88-IT Carbon Dioxide
The CO
2
transmitter also has a span only calibration adjustment. There is no zero adjustment or requirement to apply Zero gas. To calibrate the CO
2
detector, place the module into the calibration mode using the magnetic wand. Press the Mode key until CALIB is displayed. Press Enter to begin. Select calibration value, typical 2500 ppm, and press Enter to confirm. Apply span gas for at least 3 minutes or until stable. Press Enter to complete procedure.
NOTE: The Analog output values to be transmitted during the calibration procedure are selected in the maintenance configuration. Normal 20.9% value provides 17.3 mA.
Page 33 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix A. Service
Appendix A.1. Sensor Module Configuration
The gas sensor module is comprised of the following sub-assemblies ( Figure 23 ):
5100-XX-IT
SPL21810
SPL21823
XXXXXXX
XXXXXXX
5200-XX-IT
Aluminum Enclosure
316SS Enclosure
Appendix A.2. Enclosure Replacement
The enclosure should be replaced if the cover threads or conduit threads have been damaged, or if the enclosure has been damaged sufficiently that it no longer meets the required NEMA classification.
To replace the enclosure follow the transmitter and sensor assembly removal instructions, remove the damaged enclosure from its conduit, install a new enclosure and continue the transmitter and sensor assembly replacement instructions.
Figure 23: Module Components
Page 34 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix A.3. Transmitter Replacement
The transmitter assembly should be replaced when it is determined that it is unreliable, noisy or cannot be adjusted for calibration. This may occur due to age, corrosion or failed components.
To replace the transmitter assembly:
1. Remove the cover of the main enclosure.
2. Unscrew the two thumb screws in the top of the cover plate, lift the assembly and rotate 90 o to relieve the wiring service loop.
3. Remove all wires from bond, marking them carefully so they can be correctly replaced.
4. Unplug the sensor connector from the transmitter.
5. Reverse the preceding steps to install the new transmitter.
6. Restore power and allow a minimum of 30 minutes for stabilization before re-calibration.
Appendix A.4. Sensor Replacement
NOTE: Refer to Appendix H for information on sensor electrolyte replacement for 5100-25-IT and
5100-26-IT.
The gas sensor which is located inside the sensor assembly housing can be replaced without replacement of the housing. The gas sensor needs replacement when:
• The “CAL-FAIL” message appears after calibration.
•
The sensor output signal is noisy, causing erroneous gas level readings.
• The “Sensor Failure” message displays.
To replace the sensor:
1. Confirm that system power has been removed.
2. Remove the gas sensor module enclosure cover.
3. Unscrew the two thumb screws in the top of the faceplate, lift the transmitter assembly and rotate 90 o to relieve the wiring service loop.
4. Unplug the sensor connector from the transmitter.
5. Unscrew the old sensor assembly from the enclosure conduit hub.Remove the sensor assembly with its harness.
6. Unscrew sensor housing cover from the sensor.
7. Carefully pull the old sensor straight up from the socket.
8. Press the new sensor into the socket.
9. Reverse the preceding steps to install the sensor assembly.
10. Allow the new sensor to stabilize for a minimum of 60 minutes and then calibrate using the procedure in
Section
Page 35 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix A.5. Installation Inspection
Prior to system start-up or trouble shooting, the entire system should be visually inspected. The following are guidelines for that inspection.
Appendix A.5.1. Controller Installation
•
Controller installed in conformance to instruction manual recommendations.
•
AC power is correctly grounded.
•
Hot AC and relay connections have safety covers installed.
Appendix A.5.2. Cabling Installation
•
All splices are soldered or via terminal block.
•
Cabling is away from sources of electrical noise or RFI where possible.
Appendix A.5.3. Sensor Module Installation
•
Module installation in conformance with this manual.
•
Modules accessible for calibration.
•
Wiring terminations clean and correct.
Appendix A.5.4. Moisture Traps and Rainshields
•
Conduit seals and drains installed to avoid moisture build up in electronics enclosure. Water accumulation in sensor module enclosures is a major cause of damage and system failures - take precautions to seal electrical conduits and provide moisture traps and drains to avoid water damage.
•
Rain-shields installed where applicable.
Appendix A.5.5. Standard Voltages
•
Regulated DC voltage to be applied to the sensor module must be between 10 VDC and 30 VDC.
Appendix A.6. Inspection and Troubleshooting Guide
The inspection and troubleshooting guide can be used to step through the system startup and to determine the appropriate corrective action if a fault occurs.
Appendix A.6.1. Ir Module Does Not Respond to Gas
1. Repeat calibration procedure.
2. Remove the gas and wait for the timer to completely count down.
3. Apply calibration gas and verify that the sensor sees calibration gas after calibration.
4. If the sensor still does not see gas, power cycle the unit and repeat calibration.
Appendix A.6.2. Module Displays “Starting” for more than 1 Hour
1. Make sure the sensor is placed in an ambient room temperature environment.
2. Power cycle the sensor.
3. Ensure that the sensor is not exposed to gas of interest during warm-up.
Page 36 of 62
Appendix A.6.3. Module Does Not Display the Correct %PPM
1. Power cycle the unit.
2. Recalibrate the sensor.
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix A.6.4. Display S hows ‘F’ – Sensor Missing or Bad Sensor
1. Power down the unit.
2. Open the enclosure and unplug the sensor assembly from the transmitter board.
3. Plug the sensor back into the transmitter board carefully and ensure a secure fit.
4. Check all other connections.
5. Power up the unit.
Appendix A.6.5. Module Shows “***Calibration Required***”
Calibrate the module.
Appendix A.6.6. Display Shows “H” or “L”
This means the local high or low alarm is active.
Appendix A.6.7. Display Shows “M” – Not Calibrated
Calibrate the module.
Appendix A.6.8. Display Shows “C” – Calibration Mode
Complete calibration and exit to operating mode.
Appendix A.6.9. Display Shows “S” – Sentry Connection
Check connections with Sentry Controller
Appendix A.6.10. Diagnostic LEDs
LEDs 1 = 1 Hz Heartbeat normal, 2 Hz Panic Error
2 = Computation process
3 = 1 Hz Heartbeat normal
4 = HART or Sentry comms activity
Page 37 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix B. Specifications
Sensor
Type Electrochemical
Standard
Range (1)
Optional
Max Range
Zero Drift Repeatability Linearity Resolution
Response
Time (2)
Accuracy
Sensor
Life (3)
5100-03-IT O
2
5-25% Vol 0-25% Vol +/- 0.1% +/- 0.2%
5100-04-IT CO 0-500 PPM 1200 PPM +/- 1 PPM +/- 1 PPM
5100-05-IT H
2
S (5) 0-100 PPM 100 PPM
5100-06-IT Cl
2
0-10.0 PPM 10.0 PPM
+/- 0.5 PPM +/- 1 PPM
+/- 0.2%
+/- 1 PPM
+/- 0.1%
0.5 PPM
+/- 1 PPM 0.1 PPM
+/- 0.5 PPM +/- 0.5 PPM +/- 0.5 PPM 0.1 PPM
<10 sec. +/- 0.2%
<35 sec. +/- 1 PPM
2 years
2 years
<44 sec. +/- 3 PPM (6) 2 years
5100-08-IT ClO
2
0-3.0 PPM 3.0 PPM
5100-10-IT SO
2
0-100 PPM 100 PPM
+/- 0.5 PPM +/- 0.5 PPM
+/- 0.5 PPM +/- 1 PPM
+/- 0.5 PPM 0.1 PPM
+/- 1 PPM 0.5 PPM
<60 sec. +/- 0.5 PPM 2 years
<60 sec. +/- 0.5 PPM 2 years
<20 sec. +/- 0.5 PPM 2 years
5100-12-IT NO
2
0-20 PPM 20.0 PPM
5100-21-IT HCl 0-20 PPM 20.0 PPM
5100-25-IT NH
3
(4) 0-100 PPM 100 PPM
5100-26-IT HF (4) 0-10 PPM 10 PPM
+/- 0.5 PPM +/- 0.5 PPM
+/- 0.5 PPM +/- 0.5 PPM
+/- 1.0 PPM +/- 1.0 PPM
-- --
+/- 0.5 PPM 0.2 PPM
+/- 0.5 PPM 0.2 PPM
+/- 1.0 PPM +/- 1 PPM
-- 0.5 PPM
<35 sec. +/- 0.5 PPM 2 years
<35 sec. +/- 0.5 PPM 2 years
<30 sec.
<30 sec.
+/- 1 PPM
+/- 1 PPM
5100-88-IT CO
2
(8) 0-5000 PPM 5000 PPM +/- 1.0 PPM +/- 1.0 PPM +/- 1.0 PPM +/- 1 PPM <20 sec. +/- 2%
1 year
(7)
1 year (7)
2 years
(1) Optional ranges available
(2) Response time to 90% full signal value for applied concentration
(3) Sensor life typical for use at standard temperature and pressure with occasional exposure to gas of interest
(4) Diffusion via membrane. Requires electrolyte
(5) Max range, zero drift, linearity, resolution, and sensor life, have not been verified by FM Approvals
(6) Or +/- 10% of reading, whichever is greater
(7) Electrolyte recharge only
(8) Infrared
Output
Display
Relays Option
Analog Output
Signal Output
Input
Remote Alarm Reset
Power
Power consumption
Input voltage
Fixed and Scrolling LED
5 Amp, High Alarm, Low Alarm, .25 Amp Trouble all SPDT
Analog 4-20 mA (Trouble 1.5mA, Calibration 2.5mA)
Loop Resistance 800 ohm
Sentry digital bus
Analog 4-20 mA
3-wire Non-Isolated
4-wire Isolated
Serial RS-485 Modbus RTU
HART
Normally open digital input
2 watts (4 watts for 5100-88-IT)
24 VDC nominal: 10-30 VDC
Page 38 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Operating Range
5100-03-IT O
2
5100-04-IT CO
5100-05-IT H
2
S
(1)
5100-06-IT Cl
2
5100-08-IT ClO
2
5100-10-IT SO
2
Ambient Temp (
5 to 122
- 4 to 122 o o
F
- 4 to 122 o F
- 40 to 122 o
F
- 4 to 122 o F
F o F) Ambient Temp (
-15 to 50 o C
-20 to 50 o
-40 to 50 o
-20 to 50
-20 to 50 o o
C
C
C
C
5100-12-IT NO
2
5100-21-IT HCl
- 4 to 122 o F
- 4 to 122 o
F
- 4 to 122 o F
-20 to 50 o C
-20 to 50 o
C
-20 to 50 o C
5100-25-IT NH
3
5100-26-IT HF
5100-88-IT CO
2
+14 to 113
+14 to 113
- 4 to 140 o o o
F
F
F
-10 to 45 o C
-10 to 45 o C
-20 to 60
(1) Performance tested by FM Approvals to -40 o C/ o F o
C o C) Relative Humidity
15 – 90%
15 – 90%
15
– 90%
15 – 90%
15 – 90%
15 – 90%
15
– 90%
15 – 90%
20 – 95%
20 – 95%
15
– 90%
Enclosure
Material - Aluminum
Material - Stainless Steel
Polyester powder-coated, sand-cast, copper-free aluminum
316 Stainless Steel
Dimensions (HxWxD) (differs for 5100-25-IT & 5100-26-IT)
(A1 & A2) 7.9 x 5.7 x 3.9 in. (20.1 x 14.5 x 9.9 cm)
Weight
Housing
Hazardous Area Approval
(S1 & S2)
(A1 & A2)
(S1 & S2)
7.6 x 4.4 x 4.9 in. (19.3 x 11.2 x 12.4 cm)
3.4 lb. (1.5 Kg)
7.2 lb. (3.3 Kg)
NEMA 4X, NEMA 7
Explosion proof, Class 1, Div. I, Groups B, C, D
Group IIB + H2 IP66, IP65, NEMA 4X
Electrical Approvals
Factory Mutual (FM)
UL
ATEX (5100-XX-IT)
Performance Approvals
FM Performance Approval
Class 1, Div. I, Groups B, C, D
FM Standards 3600, 3615, 3810
UL Standard 508A
II 2 G Ex d IIB+H2 T6 Gb Ta = -40 o C to +50 o C
FM Performance Approval (5100-05-IT) ( Appendix J )
SIL-2 Certified (5100-04-IT, 5100-05-IT, 5100-06-IT)
CE Mark (5100-05-IT)
ABS (5100-05-IT)
CQST
Remote Sensor Option ( Appendix E )
Distance between sensor and transmitter
5100-03-IT
5100-04-IT
5100-05-IT
10 feet
15 feet
15 feet
Warranty
Limited Warranty 2 years
5100-06-IT
5100-08-IT
5100-10-IT
10 feet
10 feet
15 feet
Specifications subject to change without notice
Page 39 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Cross Sensitivity Data
Gas
HS
SO2
NO
NO2
H2
C2H4
HCN
5100-04-IT Carbon Monoxide
Conc.
15 PPM
5 PPM
35 PPM
Response
~38 PPM
~3 PPM
~10 PPM
5 PPM
100 PPM
100 PPM
10 PPM
~-3 PPM
<60 PPM
<100 PPM
~5 PPM
HCl
Gas
CO
SO2
NO
NO2
Cl2
H2
C2H4
NH3
5 PPM 0 PPM
5100-05-IT Hydrogen Sulfide
Conc. Response
400 PPM <.1 PPM
20 PPM
50 PPM
10 PPM
10 PPM
400 PPM
400 PPM
20 PPM
<10 PPM
<3 PPM
<-30 PPM
<-25 PPM
1 PPM
<0.1 PPM
<0.1 PPM
5100-06-IT Chlorine & 5100-08-IT Chlorine
Gas
Dioxide
Conc. Response
CO
H2S
SO2
NO
300 PPM
15 PPM
5 PPM
35 PPM
0 PPM
0 to -3.38 PPM
-0.05 PPM
0 PPM
NO2
H2
C2H4
HCN
HCl
ClO2
5 PPM
100 PPM
100 PPM
10 PPM
5 PPM
3 PPM
~5 PPM
0 PPM
0 PPM
0 PPM
0 PPM
10 PPM
Gas
H2S
NO
NO2
Cl2
NO2
H2
HCN
HCl
C2H4
5100-10-IT Sulfur Dioxide
Conc. Response
15 PPM
35 PPM
5 PPM
5 PPM
0 PPM
-7 to 0 PPM
-5 PPM
-1.5 to 0 PPM
5 PPM
100 PPM
10 PPM
5 PPM
100 PPM
~5 PPM
0 PPM
<5 PPM
0 PPM
0 PPM
Page 40 of 62
Gas
CO
H2S
SO2
NO
Cl2
H2
HCN
HCl
C2H4
5100-12-IT Nitrogen Dioxide
Conc.
300 PPM
15 PPM
5 PPM
Response
0 PPM
-1.5 to 0 PPM
-0.05 to 0 PPM
35 PPM
1 PPM
100 PPM
10 PPM
5 PPM
100 PPM
0 PPM
~1 PPM
0 PPM
0 PPM
0 PPM
0 PPM
Gas
CO
H2S
SO2
NO
NO2
Cl2
H2
HCN
5100-21-IT Hydrogen Chloride
Conc.
300 PPM
15 PPM
Response
<3 PPM
27 to 45 PPM
5 PPM
35 PPM
5 PPM
1 PPM
100 PPM
10 PPM
1.5 to 3.5 PPM
0 PPM
0.5 to 1 PPM
-0.05 to 0.1 PPM
<0.5 PPM
<0.3 PPM
Gas
CO
SO2
NO
NO2
H2
CH4
HCN
H2S
5100-25-IT Ammonia
Conc. Response
1000 PPM
15 PPM
100 PPM
0 PPM
>40 PPM
0 PPM
60 PPM
4%
4%
10 PPM
3 PPM
0 PPM
0 PPM
0 PPM
75 PPM
75 PPM
Gas
Cl2
HCl
NH3
SiH4
CO
SO2
NO
NO2
H2
H2S
5100-26-IT Hydrogen Fluoride
Conc.
5 PPM
Response
8 PPM
5 PPM
75 PPM
15 PPM
1000 PPM
5 PPM
100 PPM
15 PPM
4%
30 PPM
9 PPM
0 PPM
0 PPM
0 PPM
9 PPM
0 PPM
2 PPM
0 PPM
0 PPM
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix C. Model Numbers and Parts List
Sensor Module
Ordering Information: The following part number is essential in selection of the correct product. Please build up the desired part by inserting the code for each element into the appropriate space (ie. 5100-12-IT-S1-02-00-0-C).
Model Gas Series Enclosure
Relay/Connection
Output
XX
ATEX
5100
- 06 = Cl2 - 25 = NH
- 08 = ClO2 - 26 = HF
- 03 = O2 - 10 = SO
2
- 04 = CO - 12 = NO
- 05 = H2S - 21 = HCl
2
3
- 27 = ETO
-IT - A1 = AL ¾” NPT - 01 = No Relays (std) - -00 = std - 0 = Standard - 0 = None - C = ATEX/IECEX
- A2 = AL M20x1.5
- 02 = Relays Option
- S1 = SS ¾” NPT
- S2 = SS M20x1.5
- 05 = HART Option
- 1 = Conformal
Sensor
- 1 = Remote
Sensor
(5100-05-IT only)
5311-00
5311-02
1250-01
1250-02
1250-03
1260-00
1260-04
1260-05
1260-06
1260-10
1260-12
1260-13
5360-00
1256-01
1256-02
1265-03
5358-01
5358-51
9210-00
9211-09
SPX27057
SPX27061
Options
Rainshield
Rainshield with calibration port
Calibration Items
Gas Sensor Calibration Kit, Type A (CO, H2S, Air)
Gas Sensor Calibration Kit, Type B (SO2, NO2)
Gas Sensor Calibration Kit, Type C (Cl2)
Gas Cylinder, Air, (Type A), 105 liters
Gas Cylinder, CO 100 PPM, (Type A) 57 liters
Gas Cylinder, H2S in N2, 25 PPM, (Type A) 57 liters
Gas Cylinder, Cl2, 5 PPM, (Type C) 104 liters
Gas Cylinder, SO2, 50 PPM, (Type B) 74 liters
Gas Cylinder, NO2, 10 PPM, (Type B) 74 liters
Gas Cylinder, CO, 1000 PPM, (Type A), 105 liters
Calibrator Head Standard
Regulator Type A Calibrator
Regulator Type B Calibrator
Regulator Type C Calibrator
Calibration Adapter - Direct, Standard
Calibration/Configuration Magnetic Tool, 4501-XX
Calibrator, Permeation Tube
Permeation Tube, Ammonia, NH3
Kit, Sensor Recharge, for 5100-25-IT
Kit, Sensor Recharge, for 5100-26-IT
See Appendix E for 5100-25-IT and 5100-26-IT
Spare Parts
5200-03-IT Sensor, for 5100-03-IT
5200-04-IT Sensor, for 5100-04-IT
5200-05-IT Sensor, for 5100-05-IT
5200-06-IT Sensor, for 5100-06-IT / 5100-08-IT
5200-10-IT Sensor, for 5100-10-IT
5200-12-IT Sensor, for 5100-12-IT
5200-21-IT Sensor, for 5100-21-IT
SPL21834
Sensor Assembly, Aluminum, for 5100-03-IT -
Oxygen
SPL21832 Sensor Assembly, Aluminum, for 5100-04-IT - CO
Sensor Assembly, Aluminum, for 5100-05-IT -
SPL21830
H2S
SPL21833
Sensor Assembly, Aluminum, for 5100-06-IT /
5100-08-IT - Cl2 & ClO2
SPL21844
SPL21845
Sensor Assembly, Aluminum, for 5100-10-IT -
SO2
Sensor Assembly, Aluminum, for 5100-12-IT –
NO2
SPM21878 Sensor Assembly, Plastic, for 5100-26-IT
SPM27082
Sensor Assembly, 316SS, for 5100-03-IT -
Oxygen
SPM27083 Sensor Assembly, 316SS, for 5100-04-IT - CO
SPM27074 Sensor Assembly, 316SS, for 5100-05-IT - H2S
SPM27084
Sensor Assembly, 316SS, for 5100-06-IT / 5100-
08-IT - Cl2 & ClO2
SPM27087 Sensor Assembly, 316SS, for 5100-10-IT - SO2
SPM27088 Sensor Assembly, 316SS, for 5100-12-IT - NO2
SPL21824 Transmitter
SPL21810 Enclosure, Transmitter, Aluminum
SPL21823 Enclosure Transmitter, 316SS
SPL21825 Interface Board without Relay
SPL21829 Interface Board with Relay
Page 41 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix D. Limited 2 Year Warranty
Sierra Monitor Corporation warrants its products to be free from defects in workmanship or material under normal use and service for two years after date of shipment. SMC will repair or replace without charge any equipment found to be defective during the warranty period. Final determination of the nature and responsibility for defective or damaged equipment will be made by SMC personnel.
All warranties hereunder are contingent upon proper use in the application for which the product was intended and do not cover products which have been modified or repaired without SMC approval or which have been subjected to accident, improper maintenance, installation or application, or on which original identification marks have been removed or altered. This Limited Warranty also will not apply to interconnecting cables or wires, consumables (i.e. calibration gases, batteries, sensors), nor to any damage resulting from battery leakage.
In all cases SMC’s responsibility and liability under this warranty shall be limited to the cost of the equipment. The purchaser must obtain shipping instructions for the prepaid return of any item under this warranty provision and compliance with such instruction shall be a condition of this warranty.
Except for the express warranty stated above, SMC disclaims all warranties with regard to the products sold hereunder including all implied warranties of merchantability and fitness and the express warranties stated herein are in lieu of all obligations or liabilities on the part of SMC for damages including, but not limited to, consequential damages arising out of/or in connection with the use or performance of the product.
Page 42 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix E. Remote Sensor Drawing
NOTE: Drawing using aluminum enclosure available from Sierra Monitor.
Figure 24: Remote Sensor Drawing
Unless otherwise specified, NOTE the following:
•
Provide access for sensor replacement during installation.
•
For field upgrade, relocate 5100-XX-IT-A1/A2 Sensor to 5394-50 as shown in Detail A ( Figure 24 ).
•
Use belden cable #9925 or SMC P/N 53056 (see
•
Terminal blocks float in each enclosure.
•
The remote sensor assembly is meant to be supported by rigid conduit.
•
Calibrate post installation.
•
For conduit with M20 thread, install adapter 39218 (2X) where shown (see
NOTE: The distance between the sensor and transmitter is 15 feet for models 5100-04/05/10-IT. However, the distance is 10 feet for Model 5100-03-IT.
Typical Wire Connections at all Terminations:
Color
Red
Black
White
Bare Wire
Position
1
2
3
4
Page 43 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix F. Modbus Memory Map
Register
40001
40002
40010
40011
40012
40013
40014
40015
40016
40017
40003
40004
40005
40006
40007
40008
40009
40018
40019
40020
40021
40022
40023
40033
40034
40035
40036
40037
40038
40039
40040
40024
40025
40026
40027
40028
40029
40030
40031
40032
40041
40042
40043
40044
40045
40046
40047
40048
40049
40050
Description
Concentration
Temperature
Alarm Relay
Warning Relay
Warning Setpoint
Alarm Setpoint
CCC detail
Software Revision U
Software Revision L
Modbus Map Revision
Trouble Bits
Trouble
Alarm Immediate
Warning Immediate
Serial Number U
Serial Number L
Run time U
Run time L
Gas (MAX) value
Model
Range
Units
Module Status
Gas Scale
Cal Concentration level
Calibration due, in days
Calibration Count
Display Gas Output
Gas (MIN) value
Alarm Time U
Alarm Time L
Warning Time U
Warning Time L
Trouble Time U
Trouble Time L
Max Gas Time U
Max Gas Time L
Min Gas Time U
Min Gas Time L
Rotary Switch
Restart Count
Alarm Relay Action Setup
Warning Relay Action Setup
4-20mA CalibOut Value
4-20mA TroubleOut Value
Gas Factor
Force Value
Module Number
Command Register
Last command executed
Read/
Write
R
R
Comments
Gas concentration multiplied by Gas Scale (e.g. 209 = 20.9%)
Temperature in degrees Celcius scaled by a factor of 10
Boolean indicating the Alarm relay status (0 = No Alarm, 1 - (High) Alarm).
R/W Clearing bit will reset alarm.
R/W Boolean indicating the Warning relay status (0 = No Alarm, 1 - Warning Alarm). Clearing bit will reset alarm.
R/W Warning Alarm set point, used for activating Low Alarm multiplied by Gas Scale
R
R
R
R
R/W Alarm set point, used for activating High Alarm multiplied by Gas Scale
R e.g. 0001, 0007, etc
R
R e.g. 201 denotes version 2.01
e.g. version aA is denoted by 0x6141 e.g. version 2 is denoted as v2 = 0x7602
0 = no trouble
1 for any trouble, 0 = no trouble
Like 40003, but never latched
R
R
R
R
Like 40004, but never latched
Serial Number - 24 bits (presently set to Random ID)
R
R
R
RW
In seconds
In seconds
Gas concentration multiplied by Gas Scale
Read as 51028 for IR, 51002 for Cat Bead, 51005 for TOXIC H2S etc.
RW 1 = %LEL, 2 = %VOL
A bit is defined for each of the following states:
(no bit set also means some sort of trouble)
Module State - In Calibration (0x40) = cal failed
Module State - In Calibration (0x20) = cal passed
R
Module State - In Calibration (0x10)
Module State - Trouble (0x08)
Module State - Warming (0x04)
Module State - RUN (ALARM) (0x02)
Module State - RUN (0x01)
R
R
R
R
R Value like 1, 10 or 100
R/W Gas concentration value used during calibration, multiplied by Gas Scale
R
R
R
Gets reset to 365 / 180 if cal successful, Less then 0 = calibration due
Counter increments if cal successful (0 = not calibrated)
Gas value seen on display (i.e. useful during calibration)
Minimum gas value multiplied by Gas Scale
In seconds
In seconds
R
R
R
R In seconds
In seconds
R
R
R
R In seconds
Module address (If value < 16, the value reflects position of rotary switch)
R Restart count
RW Alarm Relay Action Setup - Latch/Sentry/Non-latch
RW Warning Relay Action Setup - Latch/Sentry/Non-latch
R
R
RW Applies only to -02
RW
RW
0 indicates command failed, 1 = passed, supported commands:
Lock keys = 101
Unlock keys = 102
Abort calibration = 103
Apply zero gas = 104
RW
Apply span gas = 105
Ack alarms = 106
Reset sensor = 107
Clear mem = 108
Speed up startup = 109
Clear eeprom = 110
Force address disp= 111
Clear address disp= 112
R Displays last executed command from register 40049
Page 44 of 62
Appendix G. HART
Model 5100-XX-IT Toxic Gas Sensor Module
Figure 25: Wiring Connections Table
Page 45 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Figure 26: 4-20 mA Circuits Types 5100-XX-IT – Connections - HART
Page 46 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Hart Protocol Menu
HART (Highway Addressable Remote Transducer) Protocol is the global standard for sending and receiving digital information across analog wires between smart devices and control or monitoring system. HART is a bidirectional communication protocol that provides data access between intelligent field instruments and host systems. A host can be any software application from technician's hand-held device or laptop to a plant's process control, asset management, safety or other system using any control platform. The HART protocol used on this gas sensor module has been developed to comply fully with the HART specifications outlined by the HART
Communication Foundation (HCF).
If the HART interface board has been provided with the gas sensor module, then HART will operate via the 4-20 mA interface automatically. While no specific handheld device is necessary for HART operation, the gas sensor module does comply with the HART standard so any handheld or PC-based HCF certified tool will work.
The information below provides the operator instructions on connecting HART and the HART Protocol Menu.
Common Practice Commands
The following Common Practice commands are implemented.
Command
Number
38
48
48
48
48
48
48
Byte Number
N/A
0
1
2
3
4
5
Description
Reset Configuration Changed Flag
Returns Module Status:
Module State - In Calibration
Module State - Trouble
Module State
– Warming
Module State - RUN (ALARM)
Module State
– RUN
Returns Alarm Relay Status :
0x01 = Alarm Relay ON
0x02 = Warning Relay ON
(0x10)
(0x30 = cal passed)
(0x50 = cal failed)
(0x08)
(0x04)
(0x02)
(0x01)
0x03 = Both Relays ON
Returns Trouble Status (non-zero value indicates Trouble)
Returns maximum gas value
Returns gas value used during calibration
Returns IT-Series Model Number:
0x28 = 5100-IT-28
Device Specific Commands
The Device Specific commands are used for accessing the unique features of the 5100-IT Series of gas sensor modules.
A response code of 0 indicates SUCCESS. This applies to all commands. As per HART specification, all command responses will have a response code and status byte, plus any command specific data bytes as indicated in the following tables.
Page 47 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Device Specific Commands Summary
140
141
142
143
144
145
146
147
148
149
150
Command
Number
130
131
132
133
134
135
136
137
138
139
Description
Key Press
Set Alarm Level
Set Warning Level
Set Alarm Relay Action
Set Warning Relay Action
Reset Alarms
Abort Calibration
Set Calibration Gas Level
Apply ZERO Gas
Apply SPAN Gas
RESERVED
Force Gas Value
Reset Force Gas Value
Read MODBUS RTU Register
Set Transducer Serial Number
Set Calibration Mode output current
Set Trouble Mode output current
RESERVED
RESERVED
Set Gas Factor
Write MODBUS RTU Register
Command 130: Key Press
This command mimics the front plate key inputs.
Request Data Bytes:
Byte Format
0 Unsigned-8
Description
1=Enter
2=Down
4=Up
8=Menu
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Description
Returns same value as passed
Command 131: Set Alarm Level
Request Data Bytes:
Byte
0
Format
Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Description
Alarm level, range 0 to 60. Default is 60
Description
Returns new Alarm Level
Command 132: Set Warning Level
Request Data Bytes:
Byte
0
Format
Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Description
Warning level, range 0 to 60. Default is 20.
Description
Returns new Warning Level.
Page 48 of 62
Command 133: Set Alarm Relay Action
Request Data Bytes:
Byte Format
0 Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Model 5100-XX-IT Toxic Gas Sensor Module
Description
0=Latching (default)
2=Non-Latching
Description
Returns new Alarm Relay Action value
Command 134: Set Warning Relay Action
Request Data Bytes:
Byte
0
Format
Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Description
0=Latching
2=Non-Latching (default)
Description
Returns new Warning Relay Action value
Command 135: Reset Alarms
This command will reset any alarm relays that have been latched, providing the alarm condition is no longer present on the sensor.
Request Data Bytes: None
Command Specific Response Data Bytes: None
Command 136: Abort Calibration
This command aborts the calibration procedure.
Request Data Bytes:
Command Specific Response Data Bytes:
None
None
Command 137: Set Calibration Gas Level
Request Data Bytes:
Byte
0
Format
Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Description
Calibration Gas Level, range 0 to 100
Description
Returns new Calibration Gas Level
Command 138: Apply ZERO Gas
This command will signal the module to accept the present sensor output to as the ZERO gas condition.
Request Data Bytes:
Command Specific Response Data Bytes:
None
None
Command 139: Apply SPAN Gas
This command will signal the module to accept the present sensor output to as the SPAN gas condition.
Request Data Bytes:
Command Specific Response Data Bytes:
None
None
Page 49 of 62
Command 141: Force Gas Value
Request Data Bytes:
Byte
0
Format
Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Model 5100-XX-IT Toxic Gas Sensor Module
Description
Sets the Force Gas Value, range 0 to 100
Description
Returns new Force Gas Value
Command 142: Reset Force Gas Value
This command will signal the module to set the Force Gas Value to 0.
Request Data Bytes:
Command Specific Response Data Bytes:
None
None
Command 143: Read MODBUS RTU Register
This command allows the reading of sensor module data as defined in the MODBUS RTU register map.
Request Data Bytes:
Byte
0-1
Format
Unsigned-16
Description
Address of Requested Modbus Register
40001 = lowest address
65535 = highest address
Command Specific Response Data Bytes:
Byte
0-1
Format
Unsigned-16
Description
Returns contents of selected Modbus Register
Command 144: Set Transducer Serial Number
This command allows user to add a device specific serial number, if required. This is different from the serial number assigned by the Manufacturer.
Request Data Bytes:
Byte
0-2
Format
Unsigned-24
Command Specific Response Data Bytes:
Byte
0-2
Format
Unsigned-16
Description
Serial Number
Description
Returns new Serial Number
Command 145: Set Calibration Mode output current
Request Data Bytes:
Byte Format
0-1 Unsigned-16
Description
Current output required during calibration, in microamperes
Command Specific Response Data Bytes:
Byte
0-1
Format
Unsigned-16
Description
Returns new Calibration current value
Page 50 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Command 146: Set Trouble Mode Output Current
Request Data Bytes:
Byte Format
0-1 Unsigned-16
Description
Current output required to indicate Trouble, in microamperes
Command Specific Response Data Bytes:
Byte
0-1
Format
Unsigned-16
Description
Returns new Trouble current value
Command 149: Set Gas Factor
Request Data Bytes:
Byte
0
Format
Unsigned-8
Command Specific Response Data Bytes:
Byte
0
Format
Unsigned-8
Description
Sets the Gas Factor value, range 30-200
Description
Returns new Gas Factor value
Command 150: Write MODBUS RTU Register
This command allows the writing of sensor module data as defined in the MODBUS RTU register map.
Request Data Bytes:
Byte Format
0-1 Unsigned-16
Description
Address of Designated Modbus Register
40001 = lowest address
65535 = highest address
Data for Designated Modbus Register 2-3 Unsigned-16
Command Specific Response Data Bytes:
Byte
0-1
Format
Unsigned-16
Description
Returns MODBUS register value
Page 51 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
Appendix H. Gas Sensor Module Calibration
Appendix H.1. Calibration for 5100-25-IT
NOTE: Supplement to Instructions in Section
1. Equipment Required
The following tools and equipment will be required for calibration:
•
Permeation Device Calibrator (Model 9210-00), with Ammonia
Permeation Tube (Model 9211-09).
•
Calibration Adapter (Model 5358-01)
2. Permeation Device Calibrator Operation
The calibrator is a portable device with a pump that operates from a 1.5 V alkaline size D battery. A fresh battery should allow 8 hours of continuous operation. The permeation device will probably be shipped separately, usually in a pipe with screw cap ends, one of which will be marked for opening. The permeation device should come fitted with a scrubber, but, as a precaution, open the pipe and remove the permeation device in a well ventilated area. a) Remove the scrubber from the permeation device and attach the device to the stainless steel “Tee” assembly inside the calibrator box. Tighten the connection with a wrench, with the device resting inside one of the openings in the rack. b) Close the door of the calibrator and turn on the pump switch. c) Set the flow rate for the desired ppm of ammonia. The desired flow rate for calibration of the Model 5100-25-IT is 300-500 cc/min. and the concentration range should be set between the high alarm point and
100 ppm full scale.
Figure 27: Electrolyte
Replacement
The carrier gas flow rate can be calculated from the formula:
P = (CxF)/K
Where P = the permeation rate in nanograms/min., and C = ppm of span gas, F = carrier gas flow rate in ml./min. and K = 1.437 for ammonia. The permeation rate for the temperature read on the front of the calibrator can be obtained from permeation rate vs. temperature chart. d) Run the gas calibrator for 30 min. before attaching the output hose to the ammonia sensor. e) When the use of the calibrator is completed, do not turn off the pump unit until the permeation device has been removed from the “Tee” and the gas scrubber reattached. Failure to remove the permeation device when the pump has been turned off will contaminate the system with high amounts of the permeating gas and result in erroneous concentrations. The device, with scrubber, can be stored in the storage rack overnight, but should not stay in the gas calibrator for longer storage periods.
3. Sensor Assy. Rebuild Procedure
Follow procedures outlined in Electrolyte/Membrane Replacement ( Figure 28 ).
The electrolyte needs to be replaced at least every six months, or if there is evidence of low sensor output. The membrane and O-Ring should be replaced at the same time that the electrolyte is replaced.
Page 52 of 62
Model 5100-XX-IT Toxic Gas Sensor Module
4. Equipment Required
•
Electrolyte Recharge Kit (SPX27057 for Model 5100-25-IT and SPX27061 for Model 5100-26-IT) consisting of the electrolyte, package of 5 membranes, 5 0-Rings and alcohol wipes to clean the electrode.
•
Tweezers to aid in removing and replacing the membrane.
5. Preparation a) Transfer the necessary electrolyte into a plastic wash bottle. b) Confirm that system power has been removed. c) Remove the transmitter electronics board from the main housing and unplug the sensor harness from the transmitter electronics. d) Unscrew the sensor assembly from the bottom of the enclosure. e) Remove the assembly cover from the sensor assembly.
CAUTION: Only remove the sensor cover from the assembly, DO NOT attempt to unscrew the sensor from the mounting assembly or you could damage the wiring.
6. Electrolyte Replacement ( Figure 27 )
a) Invert the sensor assembly so that the membrane is upward. b) Insert the sensor assembly in a clamp, if available, and unscrew the box nut counterclockwise, and take out the hold-down ring, membrane and O-Ring. Then pour out the old electrolyte into a beaker for disposal.
CAUTION: Avoid contact of the electrolyte with skin, eyes and clothing. In case of contact wash immediately - rubber gloves and safety glasses are recommended. c) Clean the electrode with the alcohol wipes included in the electrolyte replacement kit. All oxidation residue must be removed before re-assembly. When dirt is found inside the sensor assembly, wash the dirt off with electrolyte. d) Hold the sensor assembly with the sensing electrode up. Close the pressure compensation port with a tissue. Pour approximately 10cc of fresh electrolyte from the wash bottle into the sensor, and rinse the inside of the sensor. Empty the electrolyte into the beaker. e) Place the O-ring on top of the washer. Then transfer one drop of electrolyte from the plastic wash bottle to the exposed electrode surface. f) Place a new membrane into the hold-down ring and carefully place the plastic hold-down ring on top of the sensor body with the ring ears in the slots of the sensor body. Then fasten the sensor cover over the assembly.
CAUTION: Never touch the membrane with your hands. Use rubber gloves or tweezers. g) Invert the sensor so that the membrane is down. If this is the first time that electrolyte has been replace, there should be a round Mili-Seal covering the pressure compensation screw. This Mili-Seal prevented loss of electrolyte during shipment. Remove and discard the round Mili-Seal and remove the screw to expose the electrolyte supply port.
is at the maximum level line on the side of the sensor body. i) Replace the pressure compensation screw into the electrolyte supply port. j) Replace the sensor housing cover. k) Install the sensor assembly into the enclosure hub and tighten firmly. l) Reconnect the sensor harness to the transmitter, carefully install the transmitter into the housing and restore system power.
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Model 5100-XX-IT Toxic Gas Sensor Module m) Recalibrate the transmitter following the instructions in
( WHITE )
Spare Parts
SPX27057
SPX27061
SPX57009
SPX99017
SPX99018
5200-25-IT
5200-26-IT
Figure 28: Sensor Assembly – Exploded View
Recharge Kit NH3
Recharge Kit HF
Membrane Kit (both)
Electrolyte NH3
Electrolyte HF
Sensor Assy NH3
Sensor Assy HF
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Model 5100-XX-IT Toxic Gas Sensor Module
Figure 29: Model 5100-25-IT-A1/A2 and Model 5100-26-IT-A1/A2
Figure 30: Model 5100-25-IT-S1 and Model 5100-26-IT-S1
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Model 5100-XX-IT Toxic Gas Sensor Module
Appendix H.2. Calibration for 5100-26-IT
NOTE: Supplement to Instructions in Section
1. The calibration of the Model # 5100-26-IT HF gas sensor module is accomplished by using a 5 ppm Chlorine standard (Type C kit with # 1260-06 cylinder). Scale range is 0-10 ppm with 5 ppm being mid-scale. 5 ppm
Cl2 is equivalent to 5 ppm HF.
wand to activate the keys and confirm each entry step. Follow prompts on the module display as navigation is
3. Enter actual span gas concentration that is printed on the cylinder being used when prompted.
4. Refer to the sensor rebuild and electrolyte replacement procedure as detailed in Appendix H.1
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Appendix I. 5100-88-IT Dimensions
Model 5100-XX-IT Toxic Gas Sensor Module
Figure 31: Model 5100-88-IT-A1 Dimensions
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Appendix J. 5100-05-IT FM Performance Approval
Model 5100-XX-IT Toxic Gas Sensor Module
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Model 5100-XX-IT Toxic Gas Sensor Module
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Model 5100-XX-IT Toxic Gas Sensor Module
Appendix K. 5100-XX-IT SIL-2 Certificates
Our SIL-2 Certificates for the 5100-04-IT, the 5100-05-IT and the 5100-06-IT can be found on our website at: http://www.sierramonitor.com/gas/support/downloads.php
Appendix L. 5100-05-IT ATEX Certificate
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Model 5100-XX-IT Toxic Gas Sensor Module
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Model 5100-XX-IT Toxic Gas Sensor Module
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Table of contents
- 7 Product Description
- 7 General
- 8 Product Configuration
- 8 Theory of Operation
- 8 Modes of Operation
- 8 Sentry Interface
- 8 Modbus Operation
- 8 Analog Operation
- 8 Remote Sensor
- 9 HART Connection
- 9 Remote Alarm Reset
- 9 Optional Integral Relays
- 9 Mechanical
- 9 Enclosure
- 11 Transmitter Electronics
- 11 Sensor Assembly
- 11 Interconnect Wiring
- 11 Power Requirements
- 12 Cautions & Warnings
- 12 Introduction
- 12 – General
- 12 Wiring Warnings
- 12 Calibration Frequency
- 13 Quick Start
- 13 Overview
- 13 Wiring
- 13 Module Installation
- 13 Transmitter Installation
- 14 Startup and Operation
- 14 Zero Stabilization
- 15 Installation
- 15 Sensor Module Locations
- 16 Wiring
- 16 Analog 4-20 mA Operation
- 16 Modbus Operation Using RS-485 Connection
- 16 Termination Resistor Jumpers
- 16 Bias Jumpers (BIAS A, BIAS B)
- 16 Sentry Operation Using Sentry Connection
- 17 General
- 17 Enclosure Installation
- 18 Transmitter and Sensor Installation
- 19 Module Address Switch
- 25 Operation
- 25 Introduction
- 25 Data Entry Keypad
- 26 Main Menu
- 27 Set-Up
- 29 Maintenance Sub-Menu
- 30 Calibration
- 30 Calibration Frequency
- 30 Calibration Preparation
- 30 Calibration Gas Delivery Methods
- 31 Sensor Exposure to Gas
- 32 Calibration Sub-Menu
- 33 5100-03-IT Oxygen Deficiency
- 33 5100-88-IT Carbon Dioxide
- 34 Appendix A. Service
- 34 Appendix A.1. Sensor Module Configuration
- 34 Appendix A.2. Enclosure Replacement
- 35 Appendix A.3. Transmitter Replacement
- 35 Appendix A.4. Sensor Replacement
- 36 Appendix A.5. Installation Inspection
- 36 Appendix A.5.1. Controller Installation
- 36 Appendix A.5.2. Cabling Installation
- 36 Appendix A.5.3. Sensor Module Installation
- 36 Appendix A.5.4. Moisture Traps and Rainshields
- 36 Appendix A.5.5. Standard Voltages
- 36 Appendix A.6. Inspection and Troubleshooting Guide
- 36 Appendix A.6.1. Ir Module Does Not Respond to Gas
- 36 Module Displays “Starting” for more than 1 Hour
- 37 Appendix A.6.3. Module Does Not Display the Correct %PPM
- 37 Display Shows ‘F’ – Sensor Missing or Bad Sensor
- 37 Module Shows “***Calibration Required
- 37 Display Shows “H” or “L
- 37 Display Shows “M” – Not Calibrated
- 37 Display Shows “C” – Calibration Mode
- 37 Display Shows “S” – Sentry Connection
- 37 Appendix A.6.10. Diagnostic LEDs
- 38 Appendix B. Specifications
- 41 Appendix C. Model Numbers and Parts List
- 42 Appendix D. Limited 2 Year Warranty
- 43 Appendix E. Remote Sensor Drawing
- 44 Appendix F. Modbus Memory Map
- 45 Appendix G. HART
- 52 Appendix H. Gas Sensor Module Calibration
- 52 Appendix H.1. Calibration for 5100-25-IT
- 56 Appendix H.2. Calibration for 5100-26-IT
- 57 Appendix I. 5100-88-IT Dimensions
- 58 Appendix J. 5100-05-IT FM Performance Approval
- 60 Appendix K. 5100-XX-IT SIL-2 Certificates
- 60 Appendix L. 5100-05-IT ATEX Certificate