Rev.1/26/01
10
CALIBRATION
Haloguard IR monitors are factory calibrated to the specific gas of interest. Field calibration is not
required for operation in typical machine room environments during the first twelve months of operation
unless a change in gas type is required.
For those who wish to check the factory calibration or change the gas type an optional Span Gas Kit is
available. Instructions for use are included with kit
TESTING
The Haloguard IR
TM
should be tested at start-up, after any changes to alarm protocol, and after each
alarm level condition has been corrected.
During testing, display will indicate TEST MODE
a. Alarm Test –Enter TEST mode with jumper, select alarm with cursor by using
UP/DOWN/ENTER pushbuttons. Check all alarms sequentially. Alarm relays, lights, audible
and remote alarms (if equipped) will activate if selected.
b. Reset Test - Push RESET/SILENCE button; alarm relays, audible and remote alarms (if
equipped) will become inactive for 20 minutes. Display will read RESET and indicate minutes
to completion of reset period.
TROUBLESHOOTING
The most frequent cause of nuisance alarms and fault is improper set-up, primarily due to:
a. Failure to install in accordance with instructions.
b. Not allowing sufficient warm-up time.
c. Poor sensor location.
To check Zero Calibration, fill a clean plastic trash bag with clean outside air, tie off with twist-tie, let
sample stabilize inside for 15 - 20 minutes. Insert sample tube into bag . For models equipped with
scanner allow up to 2.5 minutes per channel for clean air sample analysis
.
Observe LCD response, if displayed PPM value drops lower then Haloguard IR is detecting the presence
of the gas of interest or another gas which absorbs infrared light at the same frequency.
Remove sample tube from bag and observe LCD response. If displayed PPM value moves higher, look
for refrigerant leaks or possible sources of interfering gases (See “Before Installation). and relocate
sample point.. Keep in mind that the Haloguard IR is much more sensitive than hand held leak detectors,
it may detect a leak when hand held units show no response
We wish to aid with any problems you might experience with the Haloguard IR
. When contacting
Thermal Gas Systems, Inc. Service Department, please have the following information ready
1. Model Number and Serial Number.
2. Description of the problem.
3. Remove cover. Place jumper on Alarm setting function and record settings. Place jumper on
Setup function and record settings
4. Advise the condition of all LED’s and the information displayed on the LCD.