25 95-852613.1
tRoublEShooting
A Fault status is indicated by a yellow LED and also by
the 4-20 mA outout. Refer to Table 6 to identify the fault
type using the 4-20 mA output. (The operator must know
which fault signaling mode has been programmed.)
Refer to Table 7 for assistance in correcting malfunctions
with the PointWatch Eclipse Detector.
dEvicE REpaiR and REtuRn
The Pointwatch Eclipse IR Hydrocarbon Gas Detector is
not designed to be repaired in the field. If a problem
should develop, first carefully check for proper wiring,
programming and calibration. If it is determined that the
problem is caused by an electronic failure, the device
must be returned to the factory for repair.
Prior to returning devices or components, contact the
nearest local Detector Electronics office so that a Service
Order number can be assigned. A written statement
describing the malfunction must accompany the returned
device or component to expedite finding the cause of the
failure.
Return all equipment transportation prepaid to the factory
in Minneapolis.
Table 6—Using the 4-20 mA Output Level to Identify a Fault Condition
Condition PIR9400 Fault Mode Eclipse Fault Mode User Dened Fault Mode
Gas Level (-10% to 120% Full scale) 2.4 to 20.5 2.4 to 20.5 2.4 to 20.5
Warm-up 0.00 1.00 Warm-up
Reference Sensor Saturated 0.20 1.00 General Fault
Active Sensor Saturated 0.40 1.00 General Fault
Calibration line active on power-up 0.60 1.00 General Fault
Low 24 volts 0.80 1.00 General Fault
Low 12 volts 1.20 1.00 General Fault
Low 5 volts 1.20 1.00 General Fault
Dirty Optics 1.00 2.00 Blocked Optics
Calibration Fault 1.60 1.00 General Fault
Calibration complete 1.80 1.00 Calibration
Span calibration, apply gas 2.00 1.00 Calibration
Zero calibration in progress 2.20 1.00 Calibration
Negative signal output fault 2.40 1.00 General Fault
Flash CRC 1.20 1.00 General Fault
Ram Error 1.20 1.00 General Fault
EEPROM Error 1.20 1.00 General Fault
IR Source Failure 1.20 1.00 General Fault
To Next Page
Loading...
