Bacharach H-SEM Specifications

Bacharach H-SEM Specifications
H-SEM
Halogen Safe Entry Monitor
Instruction 3015-4584
Operation & Maintenance
Rev. 0 – November 2005
Product Leadership • Training • Service • Reliability
WARRANTY
Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in material and
manufacture and will conform substantially to Bacharach Inc.'s applicable specifications. Bacharach's liability and Buyer's
remedy under this warranty are limited to the repair or replacement, at Bacharach's option, of this Product or parts thereof
returned to Seller at the factory of manufacture and shown to Bacharach Inc.'s reasonable satisfaction to have been
defective; provided that written notice of the defect shall have been given by Buyer to Bacharach Inc. within two (2) years
after the date of delivery of this Product by Bacharach, Inc.
Bacharach, Inc. warrants to Buyer that it will convey good title to this Product. Bacharach's liability and Buyer's remedy
under this warranty of title are limited to the removal of any title defects or, at the election of Bacharach, to the
replacement of this Product or parts thereof that are defective in title.
The warranty set forth in paragraph 1 does not apply to parts the Operating Instructions designate as having a limited shelflife or as being expended in normal use (e.g., filters).
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF (I) ANY
AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY
OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR NOT
ARISING FROM BACHARACH'S NEGLIGENCE, ACTUAL OR IMPLIED. The remedies of the Buyer shall be limited
to those provided herein to the exclusion of any and all other remedies including, without limitation incidental or
consequential damages. No agreement varying or extending the foregoing warranties, remedies or this limitation will be
binding upon Bacharach, Inc. unless in writing, signed by a duly authorized officer of Bacharach.
Register Your Warranty by Visiting
www.bacharach-inc.com
Notice:
Product improvements and enhancements are continuous; therefore the specifications and
information contained in this document may change without notice.
Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential
damages in connection with the furnishing, performance, or use of this material.
No part of this document may be photocopied, reproduced, or translated to another language without
the prior written consent of Bacharach, Inc.
Copyright © 2005, Bacharach, Inc., all rights reserved.
®
BACHARACH is a registered trademark of Bacharach, Inc. All other trademarks, trade names,
service marks and logos referenced herein belong to their respective owners.
A
Instruction 3015-4584
H-SEM
Contents
Table of Contents
1 INTRODUCTION ....................................................................................................................................... 1
1.1 How to Use This Manual.................................................................................................................. 1
1.2 Warning Statements......................................................................................................................... 1
1.3 Caution Statements.......................................................................................................................... 1
1.4 Hazard Symbols on Monitor............................................................................................................. 1
1.5 Safety Precautions ............................................................................................................................ 2
1.5.1 Explosive Atmosphere................................................................................................................ 2
1.5.2 Misuse and Modifications to Monitor ..................................................................................... 2
1.5.3 Altitude Limit............................................................................................................................. 2
1.5.4 Cleaning...................................................................................................................................... 2
1.6 Shipping Precaution ......................................................................................................................... 2
1.7 Unpacking and Initial Checks ......................................................................................................... 2
1.8 Features and Capabilities ................................................................................................................ 3
1.9 Functional Overview ........................................................................................................................ 3
1.9.1 General Description ................................................................................................................... 3
1.9.2 Response to the Presence of Multiple Refrigerants ................................................................. 3
2 SPECIFICATIONS..................................................................................................................................... 4
3 OPERATION.............................................................................................................................................. 5
3.1 Front Panel Display and Controls ................................................................................................... 5
3.2 Inspection .......................................................................................................................................... 5
3.3 General Operation ............................................................................................................................ 5
3.4 Battery – Testing and Charging ...................................................................................................... 6
3.4.1 Testing the Battery .................................................................................................................... 6
3.4.2 Charging the Battery............................................................................................................... 6
3.5 Display Screens................................................................................................................................. 7
3.5.1 Initial Power Up ......................................................................................................................... 7
3.5.2 Filling the Purge Air Bag .......................................................................................................... 7
3.5.3 Data Display Screen................................................................................................................... 7
3.5.4 Function Screens........................................................................................................................ 7
3.6 Standby Mode ................................................................................................................................. 10
3.7 Working with the Gas Alarm ......................................................................................................... 10
3.7.1 Gas-Alarm Light....................................................................................................................... 10
3.7.2 Silencing a Gas Alarm ............................................................................................................. 10
3.8 Working with System Faults ....................................................................................................... 10
3.8.1 Functional Overview................................................................................................................ 10
3.8.2 Clearing / Silencing a Fault Alarm ......................................................................................... 10
3.8.3 Viewing the Faults Log.......................................................................................................... 11
3.8.4 Fault Codes............................................................................................................................... 11
3.9 Clearing the PPM Log & Faults Log ............................................................................................. 12
3.10 Working with the DIAG Function ............................................................................................... 12
3.10.1 Overview ................................................................................................................................. 12
3.10.2 Keypad Functions .................................................................................................................. 12
3.10.3 First Diagnostic Screen.......................................................................................................... 12
3.10.4 Second Diagnostic Screen ...................................................................................................... 13
3.11 Working with the P-CHK Function ............................................................................................. 13
3.11.1 Overview ................................................................................................................................. 13
3.11.2 Keypad Functions .................................................................................................................. 13
3.11.3 Screen Display........................................................................................................................ 13
3.12 Entering Custom Refrigerant Calibration Values...................................................................... 14
3.13 Working with the Calibration Function ...................................................................................... 14
3.13.1 Calibration Procedure............................................................................................................ 14
3.13.2 Adjusting Calibration Factor................................................................................................. 14
Instruction 3015-4584
i
Contents
H-SEM
4 MAINTENANCE ...................................................................................................................................... 15
4.1 Disassembly .................................................................................................................................... 15
4.2 Internal Particulate / Hydrophobic Filter Replacement .............................................................. 16
5 PARTS AND SERVICE........................................................................................................................... 17
5.1 Replacement Parts ......................................................................................................................... 17
5.2 Service Centers............................................................................................................................... 18
ii
Instruction 3015-4584
H-SEM
Introduction
1 Introduction
1.1 How to Use This Manual
This manual provides important information on how to operate and service the H-SEM (Halogen Safe
Entry Monitor).
To assure operator safety and the proper use of the monitor, please read, understand, and follow the
contents of this manual.
If you have a working knowledge of gas monitors, you will find this manual useful as a reference tool. If
you are new to the use of gas monitors, you can educate yourself about the principles of gas detection and
the proper operation of this device by reading this manual thoroughly.
1.2 Warning Statements
The use of the word WARNING in this manual denotes a potential hazard associated with the use of this
equipment. It calls attention to a procedure, practice, or condition, or the like, which if not correctly
performed or adhered to, could result in personal injury or death.
1.3 Caution Statements
The use of the word CAUTION in this manual denotes a potential hazard associated with the use of this
equipment. It calls attention to a procedure, practice, condition, or the like, which if not correctly
performed or adhered to, could result in damage to the equipment.
1.4 Hazard Symbols on Monitor
This symbol indicates the need to consult this operating
instruction manual when opening the enclosure.
WARNING: A potential risk exists if the operating instructions
are not followed.
This symbol indicates the presence of electric shock hazards when
the enclosure is opened.
WARNING: To avoid risk of injury from electric shock, do not open
the enclosure when power is applied.
Instruction 3015-4584
1
Introduction
H-SEM
1.5 Safety Precautions
1.5.1 Explosive Atmosphere
Do not operate this equipment in the presence of flammable liquids, vapors or aerosols. Operation of any
electrical equipment in such an environment constitutes a safety hazard.
1.5.2 Misuse and Modifications to Monitor
The protection provided by the monitor may be impaired if the monitor is used in a manner not specified
by these instructions. Changes or modifications to this monitor will void the warranty.
1.5.3 Altitude Limit
6,562 ft (2,000 m)
1.5.4 Cleaning
To clean the outside of the case, DO NOT use soap and water. USE a dry cloth.
1.6 Shipping Precaution
When shipping the instrument, deflate the purge-air bag to prevent it from bursting due to changes in air
pressure. Deflate the bag by selecting the EMTYBAG function as described on Page 8.
1.7 Unpacking and Initial Checks
Your Halogen Safe Entry Monitor was carefully inspected at the factory before shipment, and packed so as
to be highly resistant to damage while in transport. When you receive the instrument, however, please
unpack it promptly and make a visual inspection to make sure that no damage has occurred during
shipment. Also check that all the following items have been received.
Item
Halogen Safety Entry Monitor
External Inlet Filter
Soft Carrying Case with
Shoulder Strap
Battery Pack & Charger
Battery Charge Cable
Instruction Manual
Qty.
1
1
Part Number
3015-4484
3015-3420
1
3015-4474
1
1
1
3015-4654
3015-4405
3015-4584
If damage was found, immediately file a claim with the carrier. If an item is missing, please contact
Bacharach’s Service Department for assistance (refer to Section Service Centers).
2
Instruction 3015-4584
H-SEM
Introduction
1.8 Features and Capabilities
•
•
•
•
•
•
•
Detects and measures CFC, HCFC, HFC and halogen gases
Measures all gases up to 1,000 ppm with a sensitivity of 1 ppm
Automatically logs up to 200 gas readings that can be later be recalled for analysis
Eliminates false alarms with use of non-dispersive IR source and sample draw system
Visual and audible gas alarm indictors that are turned ON when the detected gas level exceeds
a user defined trip-point
Extensive self diagnostics, providing both visual and audible indications when a fault occurs
Battery powered, providing from 8–12 hours of operation
1.9 Functional Overview
1.9.1 General Description
The Bacharach Halogen Safe Entry Monitor (hereafter referred to as the H-SEM unit) is a portable
refrigerant gas monitor with a self contained purge-air supply. The H-SEM unit is designed to test an area
for a specific refrigerant gas for the purpose of determining the presence and level of that gas in the area
being tested.
The self contained purge-air supply allows an area to be tested for up to 40 minutes without needing to
take the monitor to an area of fresh air for zeroing purposes. The monitor self-zeros every 4 minutes to
ensure accurate gas measurements.
During normal operation the H-SEM unit displays the type of gas being monitored, along with displaying
both the current gas level and the peak gas level detected in that area on its front panel LCD. The monitor
retains a log of previous readings that can be easily accessed at a later time for analysis.
Front panel indicators and an audible alarm are provided to signal gas alarm and instrument fault
conditions. The audible alarm can temporarily be silenced by a push of a button, but will reactivate if the
gas level is still above the alarm trip point after a user defined time period has elapsed.
The H-SEM unit requires only minor periodic maintenance such as the occasional replacement of filters.
The monitor incorporates active diagnostics that continuously check the system for proper operation. A
front panel indicator is provided to alert an operator of system malfunctions, and fault codes are generated
that enable the operator to identify the cause of the fault.
1.9.2 Response to the Presence of Multiple Refrigerants
The H-SEM is a refrigerant level monitor, not a gas analyzer. You must program the monitor to test for a
specific refrigerant, and it will only return accurate concentration readings for that particular refrigerant.
When other types of refrigerant gas are present, the monitor may return incorrect readings.
Most applications only require detection of a single refrigerant and the problems that are associated with
monitoring multiple gases are rarely an issue. If there is a possibility of multiple refrigerants leaking in
the same sampling zone, then you should carefully consider which refrigerant compound you program the
unit to monitor.
Instruction 3015-4584
3
Specifications
H-SEM
2 Specifications
Product Type........................ Portable refrigerant gas monitor with built-in purge-air source
Gas Library .......................... R-11, R-12, R-21, R-22, R-23, R-113, R-114, R-123, R-124, R-134A, R-227,
R-236fa, R-401A, R-402A, R-402B, R-404A, R-407A, R-407C, R-408A, R-409A,
R-410A, R-500, R-502, R-503, R-507, R-508B, H-1211, H-1301, H-2402, N-1230,
FA-188, CUSTOM
Measuring Range................. All gases 0 to 1,000 ppm
Warm-Up Time .................... 15 minutes
Operating Time.................... 40 minutes (approx.) before the purge-air bag needs refilling
Detector Type....................... Infrared, Non-Dispersive
Sensitivity ............................ 1 ppm
Accuracy............................... ±1 ppm
Response Time..................... 90% of response within 5 seconds; 100% in 7 seconds
Temperature Drift............... 1.5 ppm per °C between purge cycles
System Noise ....................... Less than 40dB(A) at 10 ft (3 m)
Operating Temp................... 32 to 122°F (0 to 50°C)
Ambient Humidity............... 5 to 90% RH (non-condensing)
Altitude Limit ...................... 6,562 ft (2,000 m)
Power.................................... DC power pack, provides 8–12 hours of operation
Power Consumption ............ 15 Watts
Front Panel .......................... 3 Indicator lights:
ON – Green LED flashes during warm-up, and then glows steady
during normal operation
FAULT – Yellow LED flashes when there is a system fault
ALARM – Red LED flashes when the gas level is above its alarm setting
Audible Alarm ..................... Internal audible alarm programmable for any of the following conditions:
OFF, FAULT/ALARM, ALARM
Dimensions .......................... 8D x 19L x 5W inches (203 x 483 x 127 mm)
Weight .................................. Less than 9 lbs (4 kg) including battery
Valid Calibration Period
to Specifications................... 12 months
Warranty.............................. 2 Years from date of shipment
4
Instruction 3015-4584
H-SEM
Operation
3 Operation
3.1 Front Panel Display and Controls
DISPLAY
SCREEN
ALARM LIGHT (Red)
SYSTEM FAULT
LIGHT (Yellow)
ENTER
• Press to zero peak reading
• When in the Control/Setup
Menu Mode*, press to save a
displayed value
MONITOR ON
LIGHT (Green)
Flashes during
warm-up
KEYPAD
When in the Control/Setup Menu
Mode*, use these buttons:
• To move the arrow (>) on the
display screen to the desired
function
• Scroll through data
• Change a function’s value
SILENCE / ESC
Press this button:
• To temporarily silence the
audible alarm
• Return to the previous
screen without saving data
* Enter the Control/Setup Menu Mode by pressing
the LEFT and RIGHT arrow buttons at the same time.
Power ON/OFF
Toggle Switch
3.2 Inspection
The H-SEM unit has been thoroughly inspected and tested prior to shipment from the factory.
Nevertheless, it is recommended that the monitor be re-checked prior to use. Inspect the outside of the
enclosure to make sure there are no obvious signs of shipping damage. Open the enclosure and inspect the
interior of the monitor for loose components that may have become dislodged during shipment. If damage
is discovered, please contact your supplier for assistance.
3.3 General Operation
WARNING: Operate the monitor in its horizontal position (handle facing upwards). Tilting the
monitor to a vertical position while in operation may cause inaccurate measurements to occur.
To turn ON the monitor, first lift up the shield located in front of the handle, and then press the red power
ON/OFF toggle switch.
Once the monitor has been powered ON, allow it to warm up for 15 minutes; after which, press the
ENTER button to fill the purge-air bag with clean, fresh air that is of the same temperature and
relative humidity as the area being checked for gas. DO NOT fill the purge-air bag in an area
that is contaminated with refrigerant gas.
After the purge-air bag has been filled, the monitor will automatically start making measurements in the
area being sampled. The results of those measurements are displayed on the front panel display.
MEASURE
00020pk
10ppm R134A
Instruction 3015-4584
MEASURE indicates when the monitor is actively measuring gas. The
screen to the left shows that currently 10 ppm of R-134A refrigerant gas is
being detected, and that a peak measurement of 20 ppm has been made. The
operator can reset the peak value to zero by pressing the ENTER button.
The measurement cycle runs for 4 minutes. A log of up to 200 previous
measurements can be viewed using the PPM LOG function (Page 8).
5
Operation
H-SEM
PURGE
00020pk
10ppm R134A
PURGE AIR EMPTY
<ENTER> TO FILL
PURGE indicates when the monitor is resetting its infrared detector to a
baseline of 0 ppm using the air stored in the internal purge-air bag. The
purge cycle runs for 10 seconds.
The monitor will operate approximately 40 minutes before the purge-air bag
needs refilling. When the message "PURGE AIR EMPTY" appears, take the
monitor to a clean, fresh-air environment and then press the ENTER
button to refill the bag.
If the detected gas level exceeds the preset gas-alarm point, the unit will respond by turning ON the front
panel ALARM (red) light. If the AUDALRM function is activated (Page 8), the audible alarm will also
turn ON. Pressing the front panel SILENCE button turns OFF the audible alarm, but the ALARM light
will continue to flash as long as the detected gas level is above the alarm point. The audible alarm will
reactivate if the gas-alarm condition is not cleared within the time period set by the SILENCE
function (Page 9).
If a system fault occurs (see Fault Code list on Page 11), the monitor responds by turning ON the front
panel FAULT (yellow) light. If the AUDALRM function is activated (Page 8), the audible alarm will also
turn ON. Pressing the front panel SILENCE button turns OFF the audible alarm, but the FAULT light
will continue to flash as long as the fault is present. The audible alarm will reactivate if the fault condition
is not cleared within the time period set by the SILENCE function (Page 9). Both the FAULT light and
audible alarm will automatically turn OFF after the cause of the fault has been eliminated.
A log of the last 30 fault events can be viewed using the monitor’s FAULTS function (Page 9).
3.4 Battery – Testing and Charging
3.4.1 Testing the Battery
The monitor is powered by a rechargeable battery pack whose charge
state can be checked by pressing its TEST button and observing the
number of LEDs that light. A fully charged battery pack will power
the monitor for 8-12 hours.
A red flashing LED indicates that the battery pack needs to be
charged.
3.4.2 Charging the Battery
The battery pack can be recharged at any time, regardless of the battery’s current charge state.
1. Plug the charger’s AC line cord into any convenient 110/220 VAC, 50/60 Hz outlet.
2. Plug the charger’s output connector into the charge jack of the battery pack. For your convenience,
a battery-charge cable is connected to the battery’s charge jack. This cable provides a battery-charge
connector at the top of the soft carrying case, thus allowing the battery pack to remain inside the soft
carrying case during charging.
3. Observe the following:
6
•
The charger’s power indicator lights red while the battery pack is being charged.
•
The charger’s power indicator lights green when charging is complete.
•
Charging time is 3 to 4 hours for a fully discharged battery pack.
Instruction 3015-4584
H-SEM
Operation
3.5 Display Screens
3.5.1 Initial Power Up
When the monitor is first powered up, all front panel lights turn ON and a splash screen appears showing
the monitor’s current firmware revision level. After a brief moment the Warm Up screen is displayed
along with the front panel ON light (green) blinking.
BACHARACH
WARM UP
VERSION x.xx
900
The monitor requires 900 seconds (15 minutes) to warm up; after which, the ON light glows steady and
the Data Display screen is displayed.
3.5.2 Filling the Purge Air Bag
WARNING: Fill the purge-air bag in a clean, fresh-air environment that is at the same temperature
and humidity as the area being checked for gas. DO NOT fill the bag in an area that is
contaminated with refrigerant gas.
The following message is displayed when the monitor’s purge air bag is empty and needs refilling. Press
the ENTER button to start the refill process. After the air bag has been filled, the monitor will
automatically resume normal operation.
PURGE AIR EMPTY
RECHARGING PURGE
<ENTER> TO FILL
AIR...
3.5.3 Data Display Screen
MEASURE
00020pk
PURGE
10ppm R134A
00020pk
10ppm R134A
During normal operation, the Data Display screen shows when the monitor is performing the following
two functions:
MEASURE indicates that the monitor is actively measuring gas. In the screen shown above, 10 ppm of
R-134A gas is currently being detected, and that a peak measurement of 20 ppm has occurred sometime in
the past. The measurement cycle runs for 4 minutes.
To reset the peak value to zero, press the ENTER button.
PURGE is displayed when the monitor is resetting its infrared detector to a baseline of 0 ppm using the
air stored in the internal purge-air bag. The purge cycle runs for 10 seconds. The monitor will operate for
approximately 40 minutes before the purge-air bag needs refilling.
3.5.4 Function Screens
The Function screens are used to display stored data and to set up the monitor.
>FILLBAG EMTYBAG
ALRMLVL AUDALRM
>PPM LOG LOG INT
FAULTS
DIAG
>SILENCE
GAS
P-CHK
CLOCK
>CUST K1 CAL
CUST K2 CUST K3
Instruction 3015-4584
7
Operation
H-SEM
From the Data Display screen, press both the Keypad Left and Right buttons at the same time to
display the first Function Menu screen. Next, use the Keypad buttons to move the arrow (>) through
the menu screens until the arrow is next to the desired function, and then press the ENTER button to
select that function.
Once a function has been selected, use the Keypad to scroll through the displayed data or to change a
parameter associated with that function. Press ENTER to save any newly entered parameters. Press the
ESC button to return to the previous screen without saving.
Note that if no buttons are pressed within 90 seconds after selecting a function, the unit returns to the
Data Display screen.
FILLBAG – Press ENTER to manually fill the purge-air bag.
WARNING: Fill the purge-air bag in a clean, fresh-air environment that is
at the same temperature and humidity as the area being checked for gas.
DO NOT fill the bag in an area that is contaminated with refrigerant gas.
EMTYBAG – Press ENTER to manually empty the purge-air bag. Use
this function to drain the bag if it becomes contaminated with gas.
ALRMLVL – Sets the detected gas ppm level at which the unit goes into
an alarm state, as indicated by the front panel ALARM light turning ON.
AUDALRM – Allows the monitor’s internal audible alarm to be
associated with any function of the monitoring system. Factory default is
OFF. Use the Keypad to select the desired audible alarm function, and
then press ENTER to save that value and return to the previous screen.
FILLING BAG...
DRAINING BAG...
EDIT ALARM LEVEL
0100 ppm
AUDIBLE ALARM IS
OFF
Audible Alarm Settings: OFF, ALARM, ALARM/FAULT
PPM LOG – Contains records of the last 200 measurements. Each
record shows the measurement’s date, time, and ppm level.
Measurements are logged at an interval determined by the LOG INT
function (Page 8).
#025
100PPM @
06/07/05
15:35
1
Use the Keypad Up and Down buttons to change the record number by
a factor of 1. Use the Right and Left buttons to change the record
number by a factor of 10. Press ESC to return to the previous screen.
To the right, record #025 shows that a level of 100 ppm was measured on
06/07/05 at 15:35.
The PPM Log can be cleared as described under the heading Clearing the
PPM Log & Faults Log on Page 12.
LOG INT – Sets the interval at which measurements are logged to
memory from 1 to 9999 minutes. Factory default is 1 minute. The logged
measurements can be viewed using the PPM LOG function (Page 8). Use
the Keypad to enter the desired value, and then press ENTER to save
that value and return to the previous screen.
DIAG – Enters the diagnostic function. Refer to the heading Working
with the DIAG Function on Page 12.
8
LOG INTERVAL IS
0001 min
4.2159v
<0000>
29.05cD 14.58psi
Instruction 3015-4584
H-SEM
FAULTS – Contains records of the last 30 fault events. The most recent
event is displayed when the Fault screen is first displayed. After 30
events have been recorded, the newest record overwrites the oldest. Each
record lists an event’s numeric fault code (refer to Working with System
Faults on Page 10) plus the date and time at which the event occurred.
Use any of the Keypad buttons to scroll through the other fault events.
Press ESC to return to the previous screen.
Operation
#15 <1000> @
06/07/05
12:37
To the right, record #15 shows that a Purge Flow Fault (fault code
<1000>) occurred on 06/07/05 at 12:37.
SILENCE – Sets the length of time the internal audible alarm is turned
OFF when the front panel SILENCE button is pressed. The factory default
is 300 seconds (5 minutes). If the cause of the alarm/fault has not been
cleared at the end of this time period, the internal audible alarm is
reactivated. Use the Keypad to enter the desired time period, and then
press ENTER to save that value and return to the previous screen.
P-CHK – This Pressure Check function displays the current manifold
pressure and the stored ambient pressure in psia, along with the
difference between these two pressures and the current fault code. Refer
to the heading Working with the P-CHK Function on Page 13.
GAS – Used to select of any one of 31 gas types plus one custom gas for
monitoring. Factory default is R-134A. Note that the factory can program
a custom gas type as specified on the sales order, or a custom gas can be
programmed into the monitor at a later time using the CUST K1, K2, K3
function. Use the Keypad to select the desired gas type, and then press
ENTER to save the selection and return to the previous screen.
SILENCE TIMEOUT
0300 sec
14.59
AMB14.75
-0.16dif
<0000>
SELECT GAS TYPE
R134A
Gases Available for Selection: R-11, R-12, R-21, R-22, R-23, R-113, R-114, R-123,
R-124, R-134A, R-227, R-236fa, R-401A, R-402A, R-402B, R-404A, R-407A,
R-407C, R-408A, R-409A, R-410A, R-500, R-502, R-503, R-507, R-508B, H-1211,
H-1301, H-2402, N-1230, FA-188, CUSTOM
CLOCK – Sets the monitor’s date and time. Use the Keypad to enter
the correct date and time, and then press ENTER to save those values
and return to the previous screen. Note that time is displayed in a
24 hour format, while the date is displayed as mm/dd/yy.
CAL – Used to change a calibration factor for a specific gas. Factory
default is 1.000. Refer to the heading Working with the Calibration
Function on Page 14.
CUST K1, K2 & K3 – Used to enter custom calibration data for a blend
of refrigerant gases that is not part of the monitor’s standard refrigerant
gas library. Before using this function, the operator must contact the
factory and provide information about the blend of refrigerant gases to be
monitored. Custom calibration data will then be supplied to enable the
monitor to accurately measure that particular gas blend. To enter this
data, refer to the heading Entering Custom Refrigerant Calibration
Values on Page 14.
SET DATE & TIME
06/07/05
15:30
R134A CALFACTOR
1.000
CUSTOM CAL K^1
xxxx.xxx
CUSTOM CAL K^2
yyyy.yyy
CUSTOM CAL K^3
zzzz.zzz
Instruction 3015-4584
9
Operation
H-SEM
3.6 Standby Mode
After the monitor has been turned ON and allowed to warm up, the monitor can be placed into a Standby
Mode, ready for operation without waiting an additional 15 minutes before using. While in standby, the
monitor will stop taking gas samples and purging itself from the internal purge-air bag.
Place the monitor into its Standby Mode by pressing both the ENTER and ESC buttons at the same time.
STAND BY
Take the monitor out of standby by again pressing both the ENTER and ESC buttons.
When the monitor is taken out of standby, the operator must refill the purge-air bag by pressing the
ENTER button. Refilling the bag after coming out of standby re-establishes the monitor’s ambient
pressure reading and ensures that the purge-air bag is filled at the start of taking gas measurements.
WARNING: Fill the purge-air bag in a clean, fresh-air environment that is at the same
temperature and humidity as the area being checked for gas. DO NOT fill the bag in
an area that is contaminated with refrigerant gas.
.
PURGE AIR EMPTY
RECHARGING PURGE
<ENTER> TO FILL
AIR...
As soon as the purge-air bag has been refilled with fresh air, the Data Display screen appears and the
monitor resumes normal operation.
3.7 Working with the Gas Alarm
3.7.1 Gas-Alarm Light
If the detected gas level reaches the gas-alarm level as set by the ALARMLVL function (Page 8), the front
panel ALARM light will flash and the audible alarm, if activated (refer to AUDALRM function Page 8),
will start beeping. The ALARM light and audible alarm will automatically turn OFF once the detected gas
level drops below the gas-alarm level.
3.7.2 Silencing a Gas Alarm
Pressing the SILENCE button while the alarm circuit is activated causes the internal audible alarm to
turn OFF for a period of time as set by the SILENCE function (Page 9). The front panel ALARM light will
continue to flash, however, as an indication that an alarm condition still exists. The audible alarm will
reactivate at the end of the silence period if the detected gas level is still above the gas-alarm level.
3.8 Working with System Faults
3.8.1 Functional Overview
If a system malfunction occurs (see Fault Code list, Page 11), the front panel FAULT light will flash and
the audible alarm, if activated (refer to AUDALRM function Page 8), will start beeping.
3.8.2 Clearing / Silencing a Fault Alarm
The FAULT light and audible alarm will automatically turn OFF after the cause of the fault has been
eliminated.
Pressing the SILENCE button while a fault condition still exists causes the internal audible alarm to turn
OFF for a period of time as set by the SILENCE function (Page 9). The front panel FAULT light will
continue to flash, however, as a reminder that a fault condition still exists. The audible-alarm circuit will
reactivate at the end of the silence period if the cause of the fault has not been corrected.
10
Instruction 3015-4584
H-SEM
Operation
3.8.3 Viewing the Faults Log
From the Data Display screen, press both the Keypad Left and Right buttons at the same time to
display the first Function Menu screen. Next, use the Keypad buttons to move the arrow (>) until it
points to the FAULTS function, and then press the ENTER button to display the Faults Log screen.
#03 <0800> @
07/11/05
08:17
#04 <0000> @
07/11/05
09:00
FAULT CODE<1800>
12
SAMPLE FLOW
FAULT CODE<1800>
13
PURGE FLOW
The Faults Log screen shows the monitor’s current fault status. If the
fault is still present when the FAULTS function is selected, then the
current cause of the fault is displayed along with the date and time it
occurred. If the cause of the fault has been cleared, then the Faults Log
screen will show <0000> along with the date and time the fault was
cleared. Use the Keypad buttons to scroll through the fault log. In the
screens shown to the left, record #03 shows that a Sample Flow Fault (fault
code <0800>) occurred on 07/11/05 at 08:17, while record #04 shows that
the fault was cleared on 07/11/05 at 9:00.
The cause of the fault is identified by a numeric fault code. To convert the
fault code into a text description of the fault, first press the ENTER button
and then use the Keypad buttons to scroll through the display until the
text description of the fault appears. If the fault code is a combination of
two or more faults, then continue to use the Keypad buttons until all fault
text descriptions have been displayed. For example, the fault code <1800>
represents the combination of both a Sample Flow <0800> and a Purge
Flow <1000> fault as shown to the left.
The Fault Log can be cleared as described under the heading Clearing the
PPM Log & Faults Log on Page 12.
3.8.4 Fault Codes
FAULT CODES ARE ADDITIVE. For example:
A fault code of <0003> indicates that both a Box
Temperature Fault <0001> and a Bench Temperature Fault <0002> have occurred.
<0200> Gain Set Fault: The digipot autotune
sequence has failed. This fault will only occur on
first boot up or after a firmware upgrade. Call the
factory for further instructions.
<0001> Box Temperature Fault: Enclosure
temperature is outside normal range (or IR detector
has failed). Check that the monitor is not being
subjected to extreme temperatures. Use the DIAG
function to check the Box Temperature.
<0400> A/D Fault: A fault has occurred in the
analog-to-digital circuitry. Contact the factory with
this information for further instructions.
<0002> Bench Temperature Fault: Optical
bench is outside normal operating range (or IR
detector has failed). Check that the monitor is not
being subjected to extreme temperatures.
<0004> Manifold Pressure Fault: The manifold
pressure is outside its normal operating range (or
IR detector has failed). Enter the DIAG function and
record ALL data. Call the factory with this
information for further instructions.
<0040> Fill Flow Fault: The purge-air bag’s
pressure drop is outside expected limits. Check for
a punctured bag or disconnected tubing.
<0800> Sample Flow Fault: Check for:
A restriction in the gas-sample inlet or exhaust; a
blocked internal filter; or a failed pump.
<1000> Purge Flow Fault: Check for:
A restriction in the gas-sample exhaust; a blocked
internal filter; or a failed pump. Once the purge air
stream has been restored, the monitor will return
to normal operation after it completes a purge
cycle.
<2000> Bag Fill Fault: The purge-air bag did not
fill within the expected time allotment. Check for a
punctured bag or disconnected tubing.
<0080> Over Range Fault: Monitor exposed to a
gas level that exceeded 65,000 ppm.
<4000> Zero Range Fault: The IR detector’s
output voltage is out of tolerance. Enter the DIAG
function and record all data. Call the factory with
this information for further instructions.
<0100> Zero Filter Fault: The air-purge bag is
contaminated with gas. Take monitor to a clean-air
area and use the EMTYBAG and FILLBAG functions
to decontaminate the air-purge bag.
<8000> Clipping Fault: The detector voltage may
be out of tolerance. Use the DIAG function to check
the IR detector voltage. Call the factory with this
information for further instructions.
Instruction 3015-4584
11
Operation
H-SEM
3.9 Clearing the PPM Log & Faults Log
Up to 200 gas measurements, and 30 fault events are stored by the monitor.
To clear stored data, first display the data to be cleared by selecting the PPM LOG or FAULTS function
(Pages 8 & 9). Next, press both the ENTER and Keypad Right buttons at the same time. A single, long
tone should be heard when the data has been successfully cleared.
1
3.10 Working with the DIAG Function
3.10.1 Overview
The DIAG function displays sensor data and status information useful to a service technician for
troubleshooting various fault conditions. Explanations of the data shown in these screens are given below.
3.10.2 Keypad Functions
From the Data Display screen, press both the Keypad Left and Right buttons at the same time to
display the first Function Menu screen. Next, use the Keypad buttons to move the arrow (>) until it is
next to the DIAG function, and then press ENTER to display the first of two Diagnostic screens.
Press the Keypad Up button to toggle between the First and Second Diagnostic screen.
3.10.3 First Diagnostic Screen
4.20885v
<0000>
Bench Voltage
Fault Code
29.05cD 14.58psi
Detector Temperature °C ∗ Pressure Reading
0.00075n
Noise
<0000>
35.40cB 14.59psi
Box Temperature °C
Fault Code
∗
Pressure Reading
In the First Diagnostic screen, the user can toggle between displaying Bench Voltage / Detector
Temperature, and Noise / Box Temperature by pressing the Keypad Right button.
Bench Voltage – This is the current peak-to-peak output of the IR detector. In the absence of gas this
value can range from 3.90000V to 4.50000V.
Noise –The Noise value is a 16 point running average of the noise portion of the IR detector’s output. This
reading is valuable mainly when gas is NOT present.
Detector Temperature – This is the current detector temperature in °C.
Box Temperature – This is the current internal enclosure temperature in °C.
Fault Code – Current fault code. A value of <0000> indicates that no faults are being detected.
Pressure Reading – This is the pressure as measured every purge cycle with the sample pump off and
the gas-sample inlet open. Its value is weather and altitude dependent and can range from 10.0 to
15.5 PSIA.
Purge Valve Asterisk (∗) – The purge valve can be opened and closed by pressing the Keypad Left
button. An asterisk appears on the display when the purge valve is open causing the monitor to draw air
from the purge-air bag.
12
Instruction 3015-4584
H-SEM
Operation
3.10.4 Second Diagnostic Screen
0.1ppm
0.01
0.00004au 4.210v
PPM Level
Avg. Absorption Unit
µMole/Liter
∗
Detector Voltage
PPM Level – Parts Per Million Level is the current detected gas level, and is the volume concentration
referenced to standard temperature and pressure.
Average Absorption Unit – This is the optical absorbency. In the absence of gas the absorbency is
0.00000 au. When sampling gas, its value varies proportionally with the gas concentration.
µMoles/Liter – This is the absolute concentration in micro-moles per liter of gas.
Detector Voltage – This is a running average of the IR detector’s bench voltage.
Purge Valve Asterisk (∗) – The purge valve can be opened and closed by pressing the Keypad Left
button. An asterisk appears on the display when the purge valve is open causing the monitor to draw air
from the purge-air bag.
3.11 Working with the P-CHK Function
3.11.1 Overview
The P-CHK function (Pressure Check Function) (Page 9) is useful to a service technician for
troubleshooting a flow-fault problem. The monitor will trigger a flow fault if the pressure drop from
ambient is less than 0.2 psi during a purge cycle, and 0.5 psi during a measurement cycle.
3.11.2 Keypad Functions
From the Data Display screen, press both the Keypad Left and Right buttons at the same time to
display the first Function Menu screen. Next, use the Keypad buttons to move the arrow (>) until it
points to the P-CHK function, and then press ENTER to display the Pressure screen.
The Keypad Left button toggles the purge valve open and closed. Note that an asterisk (*) appears when
the purge valve is open causing the monitor to draw air from the purge-air bag.
The Keypad Down button toggles the pump ON and OFF.
Pressing the ENTER button stores the current manifold pressure shown on the left to the ambient
pressure shown on the right (must be done with the pump OFF).
3.11.3 Screen Display
14.59
AMB14.75
-0.16dif
<0000>
Current Manifold Pressure
Pressure Difference
∗
Stored Ambient Pressure
Fault Code
Current Manifold Pressure – Current manifold pressure in psia.
Stored Ambient Pressure – Stored ambient pressure in psia.
Pressure Difference – The difference between the current manifold pressure and the stored ambient
pressure.
Fault Code – Current fault code (Page 11).
Purge Valve Asterisk (∗) – The purge valve can be opened and closed by pressing the Keypad Left
button. An asterisk appears on the display when the purge valve is open causing the monitor to draw air
from the purge-air bag.
Instruction 3015-4584
13
Operation
H-SEM
3.12 Entering Custom Refrigerant Calibration Values
CUSTOM CAL K^1
xxxx.xxx
CUSTOM CAL K^2
yyyy.yyy
In addition to the pre-programmed refrigerant gases available for selection,
a custom gas can be added by using the CUST K1, K2 & K3 function.
Before using this function, the user must contact the factory and provide
information about the gas to be monitored. The factory will then supply
values for K1, K2, and K3, which are the coefficients of a polynomial
equation that represent the calibration curve of the custom gas.
From the Data Display screen, press both the Keypad Left and Right
buttons at the same time to display the first Function Menu screen. Next,
use the Keypad buttons to move the arrow (>) until it points to the CUST
zzzz.zzz
K1 function, and then press ENTER to display the CUSTOM CAL K^1
screen. Use the Keypad buttons to enter the 1st coefficient value (K1) as received from the factory. Press
ENTER to store this value. Repeat this procedure to enter the values for K2 and K3.
CUSTOM CAL K^3
Select the custom gas for monitoring by using the GAS function (Page 9).
3.13 Working with the Calibration Function
If greater than standard accuracy is desired, the factory’s default calibration factor of 1.000 may be
adjusted by performing the calibration procedure as described below, and then selecting the monitor’s
CAL function to enter the new calibration factor.
IMPORTANT: Changing the calibration factor will VOID the factory calibration. Typically, the monitor will
remain within the factory-calibrated accuracy indefinitely and no calibration is required. Complex software
algorithms adjust for temperature drift, IR source aging, and pressure changes in order to keep the unit
within factory accuracy specifications.
3.13.1 Calibration Procedure
The calibration factor is determined by sampling a known concentration of R-134A refrigerant gas. A
cylinder of a certified calibration gas must be used to ensure that the gas sample is a known concentration
at ambient conditions. A minimum sample size of 5 liters is required.
Calibration is best performed at or near full scale (1,000 ppm). It can, however, be done at any
concentration and ideally in the range where maximum accuracy is desired down to, but not below,
100 ppm.
The monitor should be operating for at least one hour prior to performing a calibration.
Prepare the monitor for sampling by using the CAL function to set the calibration factor to 1.000. Also,
use the LOG INT function to set the log interval to 1 minute.
With the monitor operating normally, connect the gas-sample bag directly to the gas-inlet port and allow
the monitor to sample the entire bag. When sampling is complete, view the logged ppm values using the
PPM LOG function. If the bag was large enough for multiple samples, average the most stable ones. The
new calibration factor is computed by dividing the known gas concentration value by the measured value.
Typically this number will be between 0.95 and 1.05. Use the CAL function as described below to enter
the new calculated calibration factor
3.13.2 Adjusting Calibration Factor
R134A CALFACTOR
1.000
From the Data Display screen, press both the Keypad Left and Right
buttons at the same time to display the first Function Menu screen. Next,
use the Keypad buttons to move the arrow (>) until it is next to the CAL
function, and then press ENTER to display the Calibration screen.
With the Calibration screen displayed, use the Keypad buttons to enter the new calibration factor. Press
ENTER to save this value.
14
Instruction 3015-4584
H-SEM
Maintenance
4 Maintenance
4.1 Disassembly
When servicing the parts inside the H-SEM unit, disassemble the monitor’s metal chassis as follows:
Items Required:
•
Medium Phillips head screwdriver
Procedure:
1. Remove monitor and its battery pack from the soft carrying case.
2. Unplug battery pack from monitor.
3. Remove a total of 10 screws from the locations shown in the illustrations below.
4. Carefully separate the metal enclosure, being careful not to puncture the purge-air bag.
Instruction 3015-4584
15
Maintenance
H-SEM
4.2 Internal Particulate / Hydrophobic Filter Replacement
Items Required:
•
Replacement filter (07-1654)
•
Medium Phillips head screwdriver
Procedure:
1. Disassemble the monitor’s metal chassis per Section 4.1.
2. See illustration below and locate the internal particulate / hydrophobic filter.
3. Pull off tubing from both ends of filter and remove filter from instrument.
4. Attach tubing to new filter, being sure to position the filter as shown in the illustration.
5. Reassemble monitor.
4.3 Flashing Memory
An RS-232 connector, located on the top panel, is used to flash the monitor’s memory. This connector is for
factory and service technician use only.
16
Instruction 3015-4584
H-SEM
Parts and Service
5 Parts and Service
5.1 Replacement Parts
Item Description
Part Number
Halogen Safe Entry Monitor ........................................................ 3015-4484
External Filter .............................................................................. 3015-3420
Internal Particulate Filter ........................................................... 07-1654
Battery Pack & Charger............................................................... 3015-4654
Battery Charge Cable................................................................... 3015-4405
Soft Carrying Case w/ Shoulder Strap ........................................ 3015-4474
Instruction 3015-4584
17
Parts and Service
H-SEM
5.2 Service Centers
Service and replacement parts can be obtained by contacting any of the following Bacharach
Service Centers:
United States
México
California
Bacharach de México
Playa Regatas No. 473 Tercer Piso
Col. Militar Marte
Delegación Iztacalco, 08830
México D.F. México
Phones: +52-555-634-7740
+52-555-634-7741
FAX: +52-555-634-7738
Email: [email protected]
7281 Garden Grove Blvd.,
Suite H
Garden Grove, CA 92841
Phone: 714-895-0050
Fax: 714-895-7950
Email: [email protected]
New Jersey
7300 Industrial Park
Rte. 130, Bldg. 22
Pennsauken, NJ 08110
Phone: 856-665-6176
Fax: 856-665-6661
Email: [email protected]
Pennsylvania
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: 724-334-5051
Fax: 724-334-5723
Email: [email protected]
Canada
Bacharach of Canada, Inc.
250 Shields Court Unit #3
Markham, Ontario L3R 9W7 Canada
Phone: 905-470-8985
Fax: 905-470-8963
Email: [email protected]
18
Europe
European Headquarters
Bacharach Instruments
Sovereign House, Queensway
Leamington Spa
Warwickshire CV31 3JR
United Kingdom
Phone: +44-1926-338111
Fax: +44-1926-338110
Email: [email protected]
Sales / Service Center - Denmark
Bacharach Instruments Int'l
P.O. Box 44
39 Lindegade
DK 6070 Christiansfeld Denmark
Phone: +45-74-563171
Fax: +45-74-563178
Email: [email protected]
Instruction 3015-4584
H-SEM
Parts and Service
Notes:
Instruction 3015-4584
19
Headquarters:
621 Hunt Valley Circle, New Kensington, PA 15068
PH: 724-334-5000 • Toll Free: 800-736-4666 • FAX: 724-334-5001
Website: www.bacharach-inc.com • E-mail: [email protected]
Printed in U.S.A.
® Registered Trademark of Bacharach Inc.
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