Bacharach H25-IR - Manual (Page 63)

H25-IR Operation
Instruction 3015-4342 57
0100 LEAK PRESSURE FAULT
Internal leak pressure transducer reports a
pressure that deviates more that 15%
from the pressure predicted from the
box temperature sensor and the pressure
temperature curve for the leak gas type
Internal leak is low
Or empty
YES
NO
Replace internal leak, enter new leak
Parameters and store new “factory”
calibration
Leak pressure transducer
Cable disconnected
Or faulty
Reconnect or repair cable/connector
YES
NO Does fault code
Also Indicate A/D failure
0400?
A/D defective
(other faults will also result)
Replace motherboard
YES
NO
Recalibrate box temp sensor
In factory ‘sensors’ menu
Bad factory temperature
calibration
YES NO
Wrong gas type specified
In factory menu for
Internal leak
Correct entry to match tag on leak
YES
NO
Defective pressure transducer
Replace internal leak, enter new
Leak parameters and store
New factory cal
Pressure derived
from box
temperature
Leak transducer
pressure
DIAGNOSTIC / PRESSURE SCREEN
Bacharach Inc. CONFIDENTIAL for internal use only
H25 IR FAULT CODE TROUBLE SHOOTER
0200 DIGIPOT RANGE ERROR
Gain adjustment of digital potentiometer was
below the minimum value of 150
Sensor voltage is zero
Or near zero
YES
NO Sensor voltage below
4.2 volts
YES
NO
Detector cable loose
Or disconnected
Set digipot to 151 and go to beginning
NO
YES
IR Emitter resistance
Show **.* in diagnostic
Emitter screen
Emitter cable loose
Or disconnected
IR Emitter burned out, replace Optical sensor assembly, reset
digipot,re-cal box temp sensor and store new Factory calibration
Reconnect cable and readjust digipot
In factory menu
YES
NO
Reconnect cable and readjust digipot
In factory menu
Weak emitter, replace optical sensor
Assembly, reset digipot, re-cal
box temp sensor and store new
Factory calibration
YES
Emitter burned out or
cable disconnected
Emitter OK
Bacharach Inc. CONFIDENTIAL for internal use only
H25 IR FAULT CODE TROUBL E SHOOTER