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Troubleshooting
5
Troubleshooting
Fault
The status LEDs are not lit,
Receiver and transmitter not ready for
operation
4 to 20 mA output and status LEDs
indicate "Beam Block"
4 to 20 mA output or status LEDs
indicate "Fault"
No communication possible via the
communication connection
No 4 to 20 mA signal
Status LEDs on the transmitter
indicate "Warning"
The measuring points of the
transmitter are not displayed in
alignment mode
Zero calibration not successfully
completed
58
Cause
Power supply incorrect
Measuring path between receiver and
transmitter blocked
Lens on the receiver or transmitter soiled
Transmitter and receiver not correctly aligned
Receiver and transmitter set to different
channels
Transmitter is not active (e.g. no power supply) Ensure that the transmitter is
If the "Beam Block" state lasts too long, the
state changes to "Fault".
Other causes of fault possible
Batteries in the Pulsar interface adapter empty Replace batteries.
The connector is not fully inserted.
Gas warning system not supplied with voltage Connect the power supply.
Communication connection faulty
4 to 20 mA line not connected correctly
DIGITAL LINK connection damaged
No DIGITAL LINK connection installed
Transmitter is in "Fault" state
Lens on the receiver or transmitter soiled
Transmitter and receiver not correctly aligned
Gas in the measuring path
Other causes of fault possible
Remedy
Establish correct power supply.
Clear the measuring path.
Clean lenses.
Align the transmitter and receiver.
Set the same channel on the receiver
and transmitter.
functioning.
Check for obstructions in the
measuring path. Remove any
obstructions.
®
Connect the HART
handheld terminal
or PC software and read and rectify the
fault.
Inform Dräger Service if necessary.
Establish correct connection.
Return device or contact Dräger
Service.
Check the 4 to 20 mA line.
Establish a correct connection.
Switch the transmitter to alignment
mode.
Rectify the cause and align the gas
warning system.
Clean lenses.
Align the transmitter and receiver.
Ensure that there is no gas in the
measuring path during the zero
calibration.
®
Connect the HART
handheld terminal
or PC software and read and rectify the
fault.
Inform Dräger Service if necessary.
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