Bacharach H-25C, Инструкция

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H-25C Instruction Manual
Instruction 3015-0216
50
6.2 Possible Causes of Malfunctions, and What to Do If They Occur
Table 6.1 lists the most common malfunctions (symptoms). Subsections 6.2.1 through 6.2.10 show what can
cause these symptoms, and what to do if they occur.
When it Happened Symptom What to Read
Doesn’t operate at all See Subsection 6.2.1 When power applied
“CAL FAIL” on steady during countdown See Subsection 6.2.8
Does not detect leaks See Subsection 6.2.2
Measured value is too low See Subsection 6.2.3
Measured value is too high See Subsection 6.2.4
“AIR FLOW’ on steady See Subsection 6.2.5
Frequent calibration requests See Subsection 6.2.6
During measurement
Very short sensor life See Subsection 6.2.7
“CAL FAIL” on steady See Subsection 6.2.8
Cal gas in tank used up to quickly See Subsection 6.2.9
During calibration
Won’t calibrate to proper value See Subsection 6.2.10
6.2.1 Does Not Operate at All
The three most likely causes are
(1) Blown Fuse - After making sure that power is actually being supplied, check the fuse. (See Section
5.6)
Note: If fuses are blowing frequently, have the instrument inspected by Bacharach.
(2) Broken Wire in Power Cable Replace with good cable.
(3) Transformer Burnt Out Return to Bacharach for repair (component replacement).
6.2.2 Does Not Detect Leaks
The four most likely causes are:
(1) Search mode trigger point value is too high. Increase the search mode sensitivity multiplier. (See
Subsection 2.2.9)
(2) Air is leaking into the probe through the probe seal (O-ring or gasket) Check whether or not the nut
(rod) is loose. For the L-type probe, check whether or not the 0 - ring is in place.
(3) Tubing not connected to sensor.
(2) Sensor failure. Replace with good sensor.
Note: If the sensor is not heating up, return the instrument to Bacharach for repair.
6.2.3 Measured Value is Too Low
The three most likely causes are:
(1) Not properly calibrated. Re-calibrate.