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Satellite XT 4-20 mA Versions
This section will help to determine the source of a fault or
warning condition and will provide a corrective action.
7.1
Warning and Fault Messages
There are two general indications, warnings and faults, which require different attention.
If a fault or warning message does not appear in this section or if further assistance is
required, contact our service department.
7.1.1
Warnings
A warning condition indicates that the instrument requires some attention, but the
instrument is still able to monitor and operate as programmed.
The following will occur when the instrument detects a warning condition:
- the green status LED is flashing
- an alternating signal (2.8 to 4.0 mA, 0.1 Hz) is sent to external control systems;
depending on the configuration, this function can be enabled or disabled.
- depending on the configuration, the fault relay will be activated.
Press the <set> key to acknowledge and reset a Warning Condition.
Low Zero !
This message indicates that the zero point of the sensor is out
of the optimum range.
To correct this problem, check the zero adjustment and
recalibrate, if necessary.
Check Sensor !
This message indicates that the sensor sensitivity does not
comply with the specifications.
The sensor must soon be replaced.
To receive this message, the function Auto Selftest must be
configured enabled; refer to Section 6, Configuration.
! This function is not available for instruments with
oxygen sensor or catalytic sensor.
L OW Z E R O !
A s H 3
p p m
0 . 00
C H E C K S E N S O R !
A s H 3
p p m
0 . 00
Troubleshooting - Section 7
7-1