Bacharach HGMSZ Supplementary Manual

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Brand: Bacharach

Category: Carbon Monoxide Alarm , Monitor , Test Equipment

Type: Supplementary manual for Bacharach HGM-SZ

Pages: 5 (0.08 Mb)

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NEW STYLE HGMSZ TECHNICAL SUPPORT NOTES
FOR ALL SERIAL NUMBER STARTING WITH NU XXX AND ABOVE (JULY 2008)
<4000> Zero Fault – IR Voltage out of tolerance
<4200> Zero Fault and Gain set Fault
<8000> Clipping Fault – Detector voltage out of tolerance
For both Zero Fault and Clipping Fault – Press the UP arrow key to locate the screen displaying
the following-
SILENCE ZONE TMP
SQUELCH CAL
Place curser on CAL – press right arrow key and ENTER at the same time.
The new screen will show the revision number. Note the revision number. Press the
SILENCE/QUIT key: the next screen will display the following –
DIGIPOT MODEL
P CAL IR
Place the curser on DIGIPOT – Press the ENTER key. The following screen will appear –
NOTE – To verify correct model number, put curser on model and press enter. Standard
refrigerant – 3015-4200, ammonia – 3015-4280.
DIGIPOT = XXX
IR VOLT = X.XXX
Adjust the IR reading using the up and down arrow until the IR VOLT = 4.245 volts or as close
as you can get it to that reading. Press SILENCE/QUIT key until you return to the screen reading
PURGE.
NOTE – The fault may not clear if the Digipot voltage is more then 0.15 volts away from 4.2
volts.
Revised 6/5/08
P. M. Pape