EUTECH INSTRUMENTS DO 6 - REV 2 Bedienerhandbuch PDF herunterladen (Seite 39)

Instruction Manual CON 6/TDS 6

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”.

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EUTECH INSTRUMENTS DO 6 - REV 2 Bedienerhandbuch Seite 39