GE DewPro MMY31 Installation And Operation Manual page 15

DewPro MMY31
MODE OF OPERATION
10. Input locking
Location in Matrix Description of Function
VH 89 Any number other than "50" will lock the instrument settings
from inadvertent or unauthorized changes. (The instrument is
only unlocked at "50".)
11. Displaying the present Error Code
Location in Matrix Description of Function
VH 90 In the event of a system fault, this field displays the diagnostic
error code for the fault encountered.
12. Displaying the previous Error Code
Location in Matrix Description of Function
VH 91 When a system fault condition is cleared, the value of the error
code is stored in this location. That is, during normal operation,
the most recent error code is displayed for reference.
GE General Eastern
Error Code Description
0 No error
1 Dewpoint underrange. The current
output has fallen below the 4.00 mA
point.
2 Dewpoint overrange. The current
output has exceeded the 21.92 mA
level.
3 The instrument is no longer reading
between -90 and -20 'C dewpoint while
in ppm-v mode and has fallen off of the
internal vapor pressure table.
4 ppm-v overrange. The current output
has exceeded the 20 mA level. Re-
range the ppm-v upper scaling limit to
keep this error from occurring.
5 Sensor is shorted.
7 Sensor is open.
Installation and Operation Manual
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