TESTO 205 - 6 Service and Maintenance; Checking Electrolyte Gel; Cleaning Housing; Changing Probe

- Once calibration is complete, the amount of the gradient and
offset value is shown. If the amount of the gradient value is less
than 50mV / pH or the amount of the offset value is greater
than 60mV, the pH electrode is spent and must be replaced.
3
Return to measurement view: Press any button.
6. Service and Maintenance
6.1 Checking electrolyte gel
Check the electrolyte gel in the storage cap regularly for
contamination and ensure it is filled to the correct level.
Replace storage cap if necessary.
6.2 Cleaning housing
Clean housing with a damp cloth (soap water) if dirty. Do not
use abrasive cleaning agents or solutions!
6.3 Changing the probe
The instrument must be newly calibrated once a probe has
been changed (See 5.4 Calibrating instrument, P. 10)!
Instrument must be switched off. Plug contacts in the instrument
should not be touched!
1
Turn screw ring anti-clockwise and remove probe.
2
Attach new probe (watch for guide groove) and tighten screw
ring in a clockwise direction.
6.4 Changing battery
1
Pull out battery compartment.
2
Remove spent batteries and insert new
batteries (4x Type LR44).
Watch oout ffor
+/-..
3
Reinsert battery compartment.
5. Operation
11
en