Santec PEM-340 - Troubleshooting

Polarization Extinction Ratio Meter PEM-340
12-1
12
Troubleshooting
If the unit is still not operating correctly after checking the above, please contact Santec's technical support
division.
Problem Possible Cause Remedy
Power cable is unplugged. Make sure the cable is plugged in.
Fuse blown.
No fuse.
Wrong supply voltage.
Measurement speed is set to 5Hz or
10Hz.
Change measurement speed to
2.5Hz.
Connector polish does not match
units specifications.
Check specification of the unit and
the optical connector.
Unable to use front
panel.
In GPIB remote mode.
If the GPIB remote LED is lit, press
local key to be released from the
GPIB remote mode. Note this
function will not work if the Front
Panel lockout command has been
issued via GPIB.
GPIB address is not set correctly.
Press Local key for 2 seconds to
check GPIB address and set if
necessary.
Delimiter setting is incorrect. Check the delimiter setting.
Cable is not connected properly. Check the connection of the cable.
Communication protocol is incorrect. Check the communication protocol.
Delimiter setting is incorrect. Check the delimiter setting.
Cable is not connected properly. Check the connection of the cable.
Cable is not wired correctly.
Check the pin assignment of the
cable.
RS-232C
Communication is not
possible.
Open the fuse holder cover on the
rear panel and check the fuse.
Unable to switch on.
GPIB Communication is
not possible.
Unable to measure PER
values above 30dB.