Thermo Fisher Scientific CyberScan PC 510 - Manual (Page 45)

Instruction Manual PC 510
41
10 TROUBLE SHOOTING GUIDE
Problem Cause Solution
Press ‘ON’ key but no display. a) AC outlet power not is
switched on.
b) DC adapter socket is not
properly inserted.
a) Switch on the power supply.
b) Re-insert DC adapter
socket.
Not responding to key press. a) HOLD mode in operation.
b) Damaged keypad.
c) Internal program error.
a) Cancel HOLD mode by
pressing Hold key.
b) Return to dealer.
c) Reset all internal programs
by re-inserting the power
socket.
Unstable readings. a) Air bubbles in probe.
b) Dirty probe.
c) Probe not deep enough in
sample.
d) External noise pickup or
induction caused by nearby
electric motor.
e) Broken probe.
a) Tap probe to remove
bubbles.
b) Clean the probe and
recalibrate.
c) Make sure sample entirely
covers the probe sensors.
d) Move or switch off
interfering motor.
e) Replace probe.
“OR” on upper display. a) Probe is shorted.
b) Probe is in an out-of-range
solution.
c) Broken probe.
a) Test probe. Make sure
probe is fully connected to
meter.
b) Use different solution.
c) Replace probe.
Temperature reading erratic or
lower display reads “OR” a) Temperature of solution is
out of range.
a) Heat or cool solution.
Slow response a) Dirty/Oily probe. a) Clean probe. See “ Probe
Care and Maintenance”,
page 39.