Thermo Fisher Scientific EcoScan Salt 6 - Manual (Page 30)

Instruction Manual Salt 6
26
8 TROUBLE-SHOOTING GUIDE
Problem Cause Solution
Power on but no
display a) Batteries not in place
b) Batteries not in
correct polarity (+ and
– position).
c) Weak batteries
a) Check that batteries
are in place and
making good contact.
b) Re-insert batteries
with correct polarity.
c) Replace batteries.
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
re-calibrate.
c) Make sure sample
entirely covers the
probe sensors.
d) Move or switch off
interfering motor.
e) Replace probe.
Slow response a) Dirty / Oily probe. a) Clean probe. See
“Probe Care &
Maintenance”.