Dräger PIR 7000 Notice D'utilisation page 26

Fault – Cause – Remedy
The yellow status light and an analogue output signal of < 1.2 mA (default setting) are used to
indicate faults or errors of the gas transmitter. To read out detailed error information, you can
use a computer and the Dräger PolySoft software (see Online Help for software) or a manual
®
control unit made by HART .
4-20 mA signal Fault
output
<1.2 mA Beam block
<1.2 mA Calibration errors
<1.2 mA Measuring range far
below tolerance.
<1.2 mA or 0 mA Error in 4 to 20 mA
signal
Should the described measures fail to clear the fault, the cause could be a serious device error,
which means that you will have to contact the Service of Dräger to solve the problem.
How to Dispose of the Device
This product must not be disposed of as household waste. This is indicated by the
adjacent symbol.
You can return this product to Dräger free of charge. More information is available from
the national sales organizations or from Dräger.
26
Cause Remedy
Either beam – Check beam path for
path blocked or contamination.
optical surfaces – Clean optical surfaces.
contaminated. – Check accessories for
correct assembly and
damages.
Calibration – Carry out zero-point and
incomplete or span calibration.
faulty.
Either beam – Check beam path for
path blocked, contamination.
optical surfaces – Clean optical surfaces.
contaminated, or – Check accessories for
zero-point has correct assembly and
drifted. damages.
– Carry out zero-point and
span calibration.
Analogue signal – Check for power
transmission interruptions or too high
circuitry is faulty. resistance.
(Fault is self-
retaining)