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__________________________ MODEL 2234 DIGITAL FLOW COMPUTER
Table 2-5. Error Code Diagnostic Chart
Error Code
Possible Cause
25
1. Pressure transducer
Line 5
not used for line 5.
differential
pressure over
range
2. Pressure out of
range, transducer
malfunctioning or mis-
calibrated, wiring
error.
26-28
UNUSED
29
1. Totalized rate
Excessive
exceeds capacity of
totalized
buffer accumulator.
display rate
Flow rate too high,
totalizing factor too
low.
30
1. Possibly 24-volt
One volt
circuit is out of
calibration
tolerance.
error
62
Check
1. Check VAR value
of read code 265
(H2O).
2. Check code number
entered for CONFIG
(system configuration),
command code 5.
1. Check station
totalizing factor value
(TK) per read code 17.
1. Check voltage on
PC Board 1 with a
digital voltmeter for
1.000 volt.
Check command code
98 for OE4.
(Continued)
Solution
1. Enter new
CONFIG code
number.
1. Check wiring.
2. Verify pressure.
3. Check transducer.
1. Enter a corrected
totalizer factor per
paragraph 3.6.5.
1. Adjust 24-volt
supply output for
1.000 volt per
paragraph 4.2.4.
2. Perform reference
and rate voltage
calibrations per
paragraphs 4.3.1 and
4.3.2.
SECTION 2
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