The Optional Display/User Interface (Option G) 4-7
November 2005
Mode of Operation (cont.) 11. Displaying the Present Error Code
12. Displaying the Previous Error Code
13. Instrumentation Identification Number
Location
in Matrix Description of Function
VH
90
In the event of a system fault, this field displays the diag-
nostic error code for the fault encountered.
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 pres-
sure table.
4ppm
v
overrange. The current output has
exceeded the 20 mA level. Re-range the
ppm
v
upper scaling limit in V1H2 to keep
this error from occurring.
5 Sensor is shorted.
6 Sensor is open.
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 dis-
played for reference.
Location
in Matrix Description of Function
VH
92
The instrumentation identification number should
always read “100.”
To Next Page
Loading...
