Bacharach Halogen Monitor User manual

Halogen Monitor
Portable Area Gas Monitor (PAGM) with
Infrared Sensor for Halogen Gases (Refrigerants)
Instruction 3015-4584
Operation & Maintenance
Rev. 9 – February 2013
Patent 6,590,690
Product Leadership • Training • Service • Reliability

Halogen Monitor
ii Instruction 3015-4584 Rev 9

Halogen Monitor
Instruction 3015-4584 Rev8 iii
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 shelf-life 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.mybacharach.com
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 © 2013, 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.

Table of Contents Halogen Monitor
iv Instruction 3015-4584 Rev 9
Table of Contents
1INTRODUCTION ....................................................................................................................................... 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
1.6 Unpacking & Initial Checks.............................................................................................................2
1.7 Shipping Precaution .......................................................................................................................3
1.8 Features & Capabilities ..................................................................................................................3
1.9 Functional Overview....................................................................................................................... 3
1.9.1 General Description ............................................................................................................3
1.9.2 Response to the Presence of Multiple Refrigerants ...........................................................3
1.10 Specifications .................................................................................................................................4
2OPERATION..............................................................................................................................................5
2.1 Front Panel Display & Controls ......................................................................................................5
2.2 Connecting Gas-Sample & Exhaust Lines.....................................................................................5
2.2.1 Overview .............................................................................................................................5
2.2.2 Connecting the Gas-Sample Line.......................................................................................5
2.2.3 Connecting the Exhaust Line..............................................................................................6
2.3 General Operation..........................................................................................................................6
2.4 Time Weighted Average (TWA) Operation ....................................................................................7
2.4.1 Overview .............................................................................................................................7
2.4.2 Starting a New or Continuing TWA/twa ..............................................................................7
2.5 Peak Reading Operation................................................................................................................8
2.6 Leak Detector Operation ................................................................................................................ 8
2.7 Standby Mode ................................................................................................................................8
2.8 Battery – Charging and Using........................................................................................................ 8
2.8.1 Charging the Battery........................................................................................................... 8
2.8.2 Using the Battery................................................................................................................. 9
2.9 Display Screens.............................................................................................................................. 9
2.9.1 Initial Power Up...................................................................................................................9
2.9.2 Filling the Purge-Air Bag..................................................................................................... 9
2.9.3 Data Display Screen ...........................................................................................................9
2.9.4 Function Screens ..............................................................................................................10
2.10 Gas Alarm.....................................................................................................................................12
2.10.1 Gas-Alarm Light................................................................................................................12
2.10.2 Silencing a Gas Alarm.......................................................................................................12
2.10.3 Viewing the Gas Alarm Log ..............................................................................................12
2.11 System Faults...............................................................................................................................13
2.11.1 Functional Overview..........................................................................................................13
2.11.2 Clearing / Silencing a Fault Alarm.....................................................................................13
2.11.3 Viewing the Faults Log......................................................................................................13
2.11.4 Fault Codes.......................................................................................................................14
2.12 Clearing the PPM, Alarms and Faults Data .................................................................................14
2.13 The DIAG Function.......................................................................................................................15
2.13.1 Overview ...........................................................................................................................15
2.13.2 Keypad Functions .............................................................................................................15
2.13.3 First Diagnostic Screen.....................................................................................................15
2.13.4 Second Diagnostic Screen................................................................................................15
2.14 The Calibration Function ..............................................................................................................16
2.14.1 Calibration Procedure .......................................................................................................16
2.14.2 Adjusting Calibration Factor..............................................................................................16
2.15 The P-CHK Function ....................................................................................................................16
2.15.1 Overview ...........................................................................................................................16
2.15.2 Keypad Functions .............................................................................................................16
2.15.3 Screen Display..................................................................................................................17
2.16 Print/Plot Logged Gas Levels.......................................................................................................17
2.17 Downloading Stored Data to a Personal Computer.....................................................................18

Halogen Monitor Table of Contents
Instruction 3015-4584 Rev 9 v
2.18 Importing Saved Data into a Spreadsheet ...................................................................................20
3MAINTENANCE ......................................................................................................................................21
3.1 Disassembly.................................................................................................................................21
3.2 Internal Particulate/Hydrophobic Filter Replacement...................................................................22
3.3 Updating Firmware.......................................................................................................................22
4PARTS AND SERVICE...........................................................................................................................23
4.1 Replacement Parts.......................................................................................................................23
4.2 Optional Accessories....................................................................................................................23
4.3 Service Centers............................................................................................................................23

Halogen Monitor Introduction
Instruction 3015-4584 Rev 9 1
1 Introduction
1.1 How to Use This Manual
This manual provides important information on how to operate and service Bacharach’s Refrigerant
Monitor.
To assure operator safety and the proper use of the monitor, please read, understand, and follow the
directions in 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.

Introduction Halogen Monitor
2 Instruction 3015-4584 Rev 9
1.5 Safety Precautions
HAZARDOUS AREA WARNING: This instrument has not
been designed to be
intrinsically safe for use in areas classified as hazardous locations. For your safety, DO
NOT use it in hazardous (classified) locations.
COMBUSTIBLE/FLAMMABLE GAS WARNING: This is NOT a safety device. Some
gases which this instrument can detect may be combustible/flammable. When properly
configured, this instrument is designed to alarm at concentrations that are lower than the
explosive limit of the gas. As such, it is the buyer’s responsibility to initiate an immediate
planned response to any gas leaks as soon as they are detected. This equipment should
NEVER be used to measure or sample gases at or above their respective lower explosive
limits.
WARNING: 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.
CAUTION: 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.
IMPORTANT: This device is designed for operation at or below an altitude of 6,562 ft
(2,000 m). Do not operate this device above this altitude limit.
NOTE: To clean the outside of the case use a dry cloth. DO NOT use soap and water.
1.6 Unpacking & Initial Checks
Your Refrigerant 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 Qty Part Number
Refrigerant Monitor 1 3015-4484
External Filter Assembly 1 3015-5324
Soft Carrying Case with Shoulder Strap 1 3015-5700
Battery Pack & Charger 1 3015-5739
Stainless Steel Probe 1 3015-5326
Instruction Manual 1 3015-4584
Elbow 1 3015-3234
Tubing (3 ft) 1 0003-6182
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).

Halogen Monitor Introduction
Instruction 3015-4584 Rev 9 3
1.7 Shipping Precaution
When shipping the instrument by air, 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 10.
1.8 Features & Capabilities
Detects and measures CFC, HCFC, HFC and halogen gases
Measures all gases up to 10,000 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 Refrigerant Monitor is a portable refrigerant gas monitor. The unit is designed to test for a
specific refrigerant gas for the purpose of determining the presence and level of that gas being tested.
The monitor self-zeros every 4 minutes to ensure accurate gas measurements.
During normal operation the HM 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 HM 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 HM 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.

Introduction Halogen Monitor
4 Instruction 3015-4584 Rev 9
1.10Specifications
Product Type.........................Portable refrigerant gas monitor
Gas Library:
CFC: R-11, R-12, R-113, R-114, R-502, HFP
HFC: R-404a (HP62), R-407a, R-407c (AC9000), R-134a, R-410a (AZ20),
R-507 (AZ50), R-508b (SUVA95), R236FA, R125, R245Fa, R422a, R422d,
R427a, R424a, R426a and R438a
HCFC: R-22, R-123, R-124, R-500, R-503, R-401a (MP39), R-402a (HP80), R-402b
(HP81), R-408a, R-409a, R-23, R21, R227
HALON: H1301,H2402, H1211, H1234YF
Other: FA188, FC72, N1230
Measuring Range..................All gases 0 to 10,000 ppm
Warm-Up Time......................5 minutes (300 seconds)
Detector Type........................Infrared, Non-Dispersive
Sensitivity ..............................1 ppm
Accuracy................................±1 ppm ±10% of reading from 0-1000 ppm
(For R11, R22, R113: ±10 ppm ±15% of reading from 0-1000 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 Temperature.........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 maximum
Front panel............................3 indicator lights:
ON Green LED flashes during warm-up, then glows steadily 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 (D x L x W).........9.0 x 14.5 x 5.0 inches (229 x 368 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

Halogen Monitor Operation
Instruction 3015-4584 Rev 9 5
2 Operation
2.1 Front Panel Display & Controls
2.2 Connecting Gas-Sample & Exhaust Lines
2.2.1 Overview
A single gas-sample line needs to be run from the HM unit to the area to be monitored. An optional purge-
air line can also be installed to bring fresh air into the monitor for the purpose of resetting its infrared
detector to a baseline of 0 ppm during the purge cycle. Also, an optional exhaust line can be installed to
vent refrigerant gas away from the monitor.
2.2.2 Connecting the Gas-Sample Line
To connect the gas-sample line to the monitor, simply push the tubing onto the elbow connector and
attach the elbow onto the Gas Sample Port on the front of the monitor as shown in the illustration below.
The gas-sample line can be up to 50 ft (15.2 m) in length. All tubing bends should have a radius of no
less than 5” to ensure proper airflow. If kinks or obstructions occur in the line the monitor may not function
properly.
The end of this line should be placed near the potential leak source and positioned to reduce the
possibility of mists, aerosols, oil, water, dust, or other contaminates being drawn into the monitor.
An external filter (P/N 3015-5324) should be attached to the end of this line (see figure below).

Operation Halogen Monitor
6 Instruction 3015-4584 Rev 9
2.2.3 Connecting the Exhaust Line
The exhaust line carries the exhausted gas sample away from the monitor, and is required if the monitor
is located in a confined, poorly ventilated area.
The exhaust line can be up to 50 ft (15.2 m) in length. Ideally this line should terminate outdoors in a
location that is not exposed to the elements.
Connect the exhaust line to the monitor by firmly pushing the tubing into the Exhaust Port’s push-to-
connect (PTC) fitting. See below. If the exhaust line terminates outside the building, position the tubing
so that no water or moisture can enter the line. Note that this line does not require a termination filter.
To connect the exhaust line to the exhaust
port’s PTC fitting, firmly push the appropriate
tubing into the hole in the center of the
connector until it seats in the connector. Refer
to the figures at the left.
To remove tubing from a PTC connector, push
and hold the spring-loaded collar inwards, then
simultaneously withdraw the tubing. Refer to
the figures at the right.
2.3 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, lift up the shield located in front of the handle and press the red power ON/OFF
toggle switch.
When the monitor has been powered ON, allow it to warm up for 5 minutes.
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.
MEASURE 00020pk
10ppm R134A

Halogen Monitor Operation
Instruction 3015-4584 Rev 9 7
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
10).
PURGE indicates when the monitor is resetting its infrared detector to a
baseline of 0 ppm. The purge cycle runs for 10 seconds.
If the detected gas level exceeds a preset gas-alarm point, the unit will respond by turning ON the front
panel ALARM (red) light. If the AUDALRM function is activated (page 11), 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 11).
If a system fault occurs (see Fault Code list on page 14), the monitor responds by turning ON the front
panel FAULT (yellow) light. If the AUDALRM function is activated (page 11), 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 11). 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 10).
2.4 Time Weighted Average (TWA) Operation
2.4.1 Overview
In addition to displaying the current gas level, the monitor can also calculate and display a Time Weighted
Average ppm value. This value is available in two formats (8 Hour or Continuous). This provides users
with the most appropriate data on their average ppm exposure in the working environment.
TWA operation is selected by using the 2ndUNIT function.
The two TWA formats are identified by the appearance of either “TWA” or ‘twa” in the upper-right corner
of the Data Display screen.
•TWA (upper case letters) is calculated over an 8-hour period. This format is designed to show the
uers’s average ppm exposure level during a typical work day. After 8 hours has expired, an
asterisk (*) will be displayed but the TWA will continue to be updated.
•twa (lower case letters) is continuously calculated over the operating time of the monitor. This
mode is useful for monitoring an area for a few minutes or more and is the preferred mode of
operation for checking operating room atmospheres.
2.4.2 Starting a New or Continuing TWA/twa
When the monitor is turned ON the following message appears if the monitor is set up to display
TWA/twa.
Press either . . .
•ENTER to start a new TWA/twa
•ESC to continue with the current TWA/twa.
PURGE 00020pk
10ppm R134A
PURGE 00TWA
100ppm R134A
PURGE 00twa
100ppm R134A
PRESS ENTER FOR
NEW TWA/twa

Operation Halogen Monitor
8 Instruction 3015-4584 Rev 9
Tip: If NO button is pressed within 60 seconds the monitor automatically continues
with the current TWA/twa.
Note: During the time the monitor is OFF, the gas measurement is assumed to be
zero and will be factored into the TWA/twa calculation.
After selecting whether to start or continue a TWA/twa, the next screen shows the current elapsed
TWA/twa time.
Where: xx is the accumulated time used by the monitor in calculating the TWA/twa.
2.5 Peak Reading Operation
In addition to displaying the current halogen level, the monitor can also be set up to display its peak ppm
measurement. The peak reading display is selected by using the 2ndUNIT function.
The display above shows that currently the monitor is detecting 100 ppm R31A and that a peak
measurement of 500 ppm has occurred.
The peak reading is reset by pressing the ENTER button.
2.6 Leak Detector Operation
The monitor can be configured to operate as a Leak Detector by setting the AUDALRM function (page
11) to LEAK DETECTOR.
When configured as a Leak Detector, the monitor will produce a leak detector type of audible feedback.
At zero ppm there will be a tic every 2 seconds with the tic rate increasing up to 20 tics/second when the
ppm level reaches the ALRMLVL setting.
2.7 Standby Mode
After becoming operational, the monitor can be placed into a Standby Mode. When taken out of standby
the monitor is ready for operation without waiting an additional 15 minutes to warm up. While in standby
the monitor will stop taking gas samples and stops purging itself from the purge-air bag.
Place the monitor into its Standby Mode by pressing both the ENTER and ESC buttons at the same time.
Take the monitor out of standby by again pressing both the ENTER and ESC buttons.
2.8 Battery – Charging and Using
2.8.1 Charging the Battery
The monitor is powered by a rechargeable battery pack located in a pouch on the side of the monitor’s
soft carrying case. The battery pack can be recharged at any time, regardless of the battery’s current
charge state.
The AC adapter provided accepts voltage inputs of 100 to 240 VAC. Plug the adapter into the wall, then
into the battery. Disconnect the adapter when the battery is fully charged. A fully charged battery pack
will power the monitor for approximately 8-12 hours.
PURGE 00020pk
10ppm R31A
STAND BY
ELAPSED TWA TIME
IS xx MINUTES

Halogen Monitor Operation
Instruction 3015-4584 Rev 9 9
2.8.2 Using the Battery
The PAGM is designed for a 16VDC input. Following the instructions for the particular battery in use, set
the output voltage to 16V. Plug the battery into the instrument's battery input port and the instrument is
ready for use.
2.9 Display Screens
2.9.1 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.
The monitor requires 5 minutes to warm up; after which, the ON light glows steadily and the Data Display
screen is displayed.
If the monitor is turned OFF and then turned back ON, the latter warm-up time may be less than
15 minutes depending on the temperature of the IR detector.
2.9.2 Filling the Purge-Air Bag
CAUTION: 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 gas.
The following message is displayed and an audible alarm is sounded when the monitor’s purge-air bag is
empty. This message appears immediately after warm-up, and approximately every 40 minutes during
normal operation. Press the ENTER button to start the refill process.
After the air bag has been filled, the monitor starts or resumes normal operation by displaying the
Data Display screen.
2.9.3 Data Display Screen
BACHARACH
VERSION x.xx
WARM UP
MEASURE 00020pk
10ppm R134A
PURGE 00020pk
10ppm R134A
PURGE AIR EMPTY
<ENTER> TO FILL
RECHARGING PURGE
AIR...

Operation Halogen Monitor
10 Instruction 3015-4584 Rev 9
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.
2.9.4 Function Screens
The Function screens are used to set up the monitor and display stored data.
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 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 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 – Detected gas level that causes the front panel ALARM
(red) light to turn ON and the audible alarm to sound (if AUDALRM
function is set to ALARM or ALARM/FAULT).
AUDALRM – The internal audible alarm is programmable to function as
follows:
•OFF – Audible alarm is disabled.
•ALARM – Alarm sounds when detected gas level exceeds the
ALRMLVL level as evidenced by the front panel ALARM (red) light
turning ON.
•ALARM/FAULT – Alarm sounds when either the detected gas level exceeds the ALRMLVL value, or if
a system fault occurs, as evidenced by the front panel ALARM (red) light or FAULT (yellow) light
turning ON.
•LEAK DETECTOR – When selected, the monitor will produce a leak detector type of audible
feedback. At zero ppm there will be a tic every 2 seconds with the tic rate increasing up to 20 tics per
second when the ppm level reaches the ALRMLVL setting.
>FILLBAG EMTYBAG
ALRMLVL AUDALRM
>PPM LOG LOG INT
FAULTS DIAG
>SILENCE P-
CHK
GAS CLOCK
FILLING BAG...
DRAINING BAG...
AUDIBLE ALARM IS
ALARM
EDIT ALARM LEVEL
300 ppm
>2ndUNIT PRINT
PLOT PC-DUMP

Halogen Monitor Operation
Instruction 3015-4584 Rev 9 11
•TWA ALARM – Audible alarm sounds when the TWA or twa, whichever is selected by the 2ndUNIT
Function, exceeds the ALARMLVL value.
The audible alarm can be temporarily silenced by pressing the SILENCE button.
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. After all 200 locations are filled the newest entries overwrite
the oldest entries.
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 gas level of 7 ppm was
measured on 07/11/2005 at 3:35 PM.
The PPM Log can be cleared using the information discussed in
Clearing the PPM, Alarms and Faults Data on page 14.
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.
Use the Keypad to enter the desired value, and then press ENTER to
save that value and return to the previous screen.
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 Section
2.11.4 Fault Codes on page 14) 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.
To the right, record #15 shows that a Purge Flow Fault (fault code
<1000>) occurred on 07/11/2005 at 12:37 PM.
DIAG – Enters the diagnostic function. Refer to Section 2.13.
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 30 seconds. If the cause of the gas-alarm has not been cleared at the
end of this time period, the internal audible alarm will reactivate. 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 – The 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 Section 2.15.
#025 7PPM @
07/11/05 15:35
14.07 * AMB14.05
-0.02dif <1000>
LOG INTERVAL IS
0001 min
4.2159v <0000>
29.05cD 14.58psi
SILENCE TIMEOUT
0030 sec
#15 <1000> @
07/11/05 12:37

Operation Halogen Monitor
12 Instruction 3015-4584 Rev 9
GAS – Used to select one of any of the gas types available for
monitoring. Factory default is R-134A. Note that the factory can
program a custom gas type as specified on the sales order. Use the
Keypad to select the desired gas type, and then press ENTER to save
the selection and return to the previous screen.
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.
2ndUNIT – One of following second measurements can be selected
to appear in the upper-right hand corner of the Data Display Screen:
•NONE – Blank
•Peak PPM – Peak gas reading
•Cont twa – Time Weighted Average calculated on a continuous basis
•8hr TWA – Time Weighted Average calculated over an 8 hour period
PRINT – Refer to Section 2.16 Print/Plot Logged Gas Levels on page 17.
PLOT – Refer to Section 2.16 Print/Plot Logged Gas Levels on page 17.
PC-DUMP – A personal computer can be connected to the monitor’s
DB9 RS-232 connector for the purpose of downloading logged ppm
measurements. These measurements can later be analyzed using any
common spreadsheet program. Refer to Section 2.17 Downloading
Stored Data to a Personal Computer on page 18 for detailed instructions
on how to transfer stored data to a personal computer.
2.10Gas Alarm
2.10.1 Gas-Alarm Light
If the detected gas level reaches one the gas-alarm levels as set by the LEAKLVL,SPILLLVL, or
EVACLVL functions, the front panel ALARM light will flash and the audible alarm, if activated (refer to
AUDALRM function page 10), will start beeping. The ALARM light and audible alarm will automatically
turn OFF once the detected gas level drops below the gas-alarm level.
2.10.2 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 11). 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.
2.10.3 Viewing the Gas Alarm Log
From the Data Display screen, press any of the Keypad buttons to display the first Function Menu
screen. Next, use the Keypad buttons to move the arrow (>) until it points to the ALARMS function, and
then press the ENTER button to display the Alarm Log screen.
SET DATE & TIME
07/11/05 15:30
SELECT GAS TYPE
R134A
MEASURE 00500pk
100ppm SF6
2ndUNI >PRINT
PLOT PC-DUMP
2ndUNIT PRINT
>PLOT PC-DUMP
2ndUNIT PRINT
PLOT >PC-DUMP

Halogen Monitor Operation
Instruction 3015-4584 Rev 9 13
The alarm log shows the type of alarm (LEAK, SPILL, or EVAC), plus the date and time it occurred. If
CLEAR is displayed, this indicates that an alarm was acknowledged at the date and time shown.
Immediately after selecting the ALARMS function, the most recent alarm
event is displayed. In the example to the right, record #03 shows that a
Spill Alarm occurred on 06/10/05 at 15:06. Note that if more than 30 alarm
events have occurred, then the newest event overwrites the oldest.
Note that the Alarm Log can be cleared as described in Section Clearing PPM, ALARMS & FAULTS Data
(page 15).
2.11 System Faults
2.11.1 Functional Overview
If a system malfunction occurs (see Fault Code list, page 14), the front panel FAULT light will flash and
the audible alarm, if activated (refer to AUDALRM function page 10), will start beeping.
2.11.2 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 11). 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.
2.11.3 Viewing the Faults Log
From the Data Display screen, press any of the Keypad buttons 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.
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 in Clearing the PPM, Alarms
and Faults Data on page 14.
FAULT CODE<1800>
12 SAMPLE FLOW
FAULT CODE<1800>
13 PURGE FLOW
#03 <0800> @
07/11/05 08:17
#04 <0000> @
07/11/05 09:00
#03 SPILL @
06/10/05 15:06

Operation Halogen Monitor
14 Instruction 3015-4584 Rev 9
2.11.4 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.
Code Fault Name Description
<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 DIAGNOS function to check the Box Temperature.
<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 (Sensor 1)
The manifold pressure is outside its normal operating range (or IR detector
has failed). Enter the DIAGNOS function and record ALL data. Call the factory
with this information for further instructions.
<0020> Manifold Pressure
Fault (Sensor 2) See fault code <0004>.
<0040> Fill Flow Fault The purge-air bag’s pressure drop is outside expected limits. Check for a
punctured bag or disconnected tubing.
<0080> Over Range Fault Monitor exposed to a gas level that exceeded 65,000 ppm.
<0100> Zero Filter Fault The purge-air bag is contaminated with gas. Take monitor to a clean-air area
and use the EMPTYBAG and FILLBAG functions to decontaminate the purge-
air bag.
<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.
<0400> A/D Fault A fault has occurred in the analog-to-digital circuitry. Contact the factory with
this information for further instructions.
<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.
<4000> Zero Range Fault: The IR detector’s output voltage is out of tolerance. Enter the DIAGNOS function
and record all data. Call the factory with this information for further
instructions.
<8000> Clipping Fault The detector voltage may be out of tolerance. Use the DIAGNOS function to
check the IR detector voltage. Call the factory with this information for further
instructions.
2.12 Clearing the PPM, Alarms and Faults Data
Up to 200 gas measurements and 30 alarm and fault events are stored by the monitor.
To clear stored data, first display the data to be cleared by selecting the PPM LOG, ALARMS or FAULTS
function. 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.