Bacharach H25-IR - Manual (Page 61)

H25-IR Operation
Instruction 3015-4342 55
0004 MANIFOLD
PRESSURE SENSOR ERROR
Manifold pressure
Is greater than 16.0psia
or less than 3.0psia
YES
NO
Correct over or under pressure
Condition, check probe input and
exhaust output for pressure or
vacuum
Does fault code
Also Indicate A/D failure
0400?
A/D defective
(other faults will also result)
Replace motherboard
YES
NO Snubber orifice blocked
Replace purple snubber
Stored atmospheric
pressure
Manifold pressure
Fault cleared?
NO Bad Pressure transducer
Replace motherboard
Bacharach Inc. CONFIDENTIAL for internal use only
H25 IR FAULT CODE TROUBLE SHOOTER
0010 LOOP OPEN
Shorting jumper on
Current loop connector
Is missing or loop
resistance
>500ohms
YES
NO
Reconnect Jumper or reduce
Loop resistance
Retest with shorting jumper in place
of loop
Shorting jumper is
Connected?
A/D defective
(other faults will also result)
Replace motherboard
YES
NO
Does fault code
Also Indicate A/D failure
0400?
Loop circuit defective
replace motherboard
NO
YES
Bacharach Inc. CONFIDENTIAL for internal use only
H25 IR FAULT CODE TROUBLE SHOOTER