SS2000 Operator’s Manual
H
2
S in Natural Gas A–5
Pressure too Low or Pressure too
High
fault
Check that the actual pressure in the
measurement cell is within specification
(Table B-1 on page B–1).
If the pressure reading is incorrect,
check that the pressure/temperature
cable on the bottom of the electronics
enclosure is tight (see Figure 3–4 on
page 3–11). Check the connector on
the pressure transducer. Check the
pressure connector on the backplane
board.
Temperature too Low or
Temperature too High fault
Check that the actual temperature in
the measurement cell is within specifi-
cation (Table B-1 on page B–1).
If the temperature reading is incorrect,
check that the pressure/temperature
cable on the bottom of the electronics
enclosure is tight (see Figure 3–4 on
page 3–11). Check the connector on
the cell temperature sensor. Check the
temperature connector on the back-
plane board. (Note: A temperature
reading greater than 150 °C indicates a
short circuit on the temperature sensor
leads; a reading of less than –40 °C
indicates an open circuit).
Front panel display is not lit and no char-
acters appear
Check for correct voltage on terminal
block input. Observe polarity on DC
powered units.
Check for correct voltage after fuses.
Check for 5 VDC on red wires, 12 VDC
on yellow wires, and 24 VDC on orange
wires from power supply (black wires
are ground).
Check connections on display commu-
nication and power cables.
Strange characters appear on front panel
display
Check connections on display commu-
nication cable.
Pressing keys on front panel do not have
specified effect
Check connections on keypad cable.
Table A–1 Potential instrument problems and their solutions.
To Next Page
Loading...
