Table 6-1 Troubleshooting List - Ulvac MBD Series Instruction Manual

MBD CRYO-METER Instruction Manual
Trouble shooting procedure
Problem Check Point
Power lamp does AC main supply
not light on, when Power supply cord
turn on the MBD. Fuse
Power lamp is DC power cable
lighted but no MBD POWER OUT
lamps of the
MBS-C on.
Power lamp is Signal cable
lighted but the Inside of MBD
temperature value
is not displayed.
The displayed Signal cable
temperature on the
MBD does not
correspond with
the Displayed
status on the
MBS-C.
Table 6-1 Troubleshooting List (1/2)
Possible causes
1.Supply power is low or
none.
2. Wiring problem
3. MBD failure
1. Wiring problem
2. MBD failure
3. MBS - C failure
1. Wiring problem
2. MBD failure
1. Wiring problem
2. MBD failure
3. MBS - C failure
ULVAC CRYOGENICS INCORPORATED
Action
Check the AC main supply voltage for the
MBD. If there is no problem with the voltage,
then check the Power supply cord and the
connection (UCI supplied cable should be
used).
Also ensure the regular voltage comes in to
MBD through the cable.
If no problem is found with the points above,
there is a possibility of MBD failure.
Please contact our customer support for
replacement of the product.
Check the connections and damages of the
DC power cable between MBD and MBS-C.
(UCI supplied cable should be used.)
Also check that the regular DC voltage
comes out at MBD POWER OUT.
If no problem is found with the points above,
there is a possibility of MBD failure.
Please contact our customer support for
replacement of the product or refer to
MBS-C manual to proceed troubleshooting.
Check if there is any damage on the Signal
cable.
Also check that the wiring and conduit are
done properly.
If no problem is found with the points above,
there is a possibility of MBD failure.
Please contact our customer support for
replacement of the product.
Check the connections and damages of the
Signal cable between MBD and MBS-C.
(UCI supplied cable should be used.)
If no fault is found, check the voltage at the
cable plug and refer to MBS – C manual to
find the corresponding temperature.
If the temperature and displayed number on
MBD don't match, there is a possibility of
MBD failure. please contact our customer
support for replacement of the product or
refer to MBS - C manual to proceed
troubleshooting.
9