PICO pH - Mounting the Probe on the Probe Holder; Description of Tube Assembly on Injection Valve; Start-Up and Operation; Calibration Procedure

Instruction and Operator's Manual PICO pH
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2.3.6 Mounting the probe on the probe holder
2.3.7 Description of tube assembly on injection valve
3.0 START-UP AND OPERATION
3.1 Calibration procedure
This operation is used to specify the measurement of the pH sensor of the PICO pH.
Nut
Tube
Fitting
The hydraulic tube is fitted to the strainer and pump in
the same way.
1 : Slide tube through nut
2: Engage the tube at the bottom of the conical fitting
3: Hand-tighten nut onto fitting
Fig. 11
Saddle
O-ring seal
O-ring seal
Spacer
Nut
Fig. 9
Fig. 10
Spacer
Turn plug ¼ turn to close the
connection
Insert plug into bayonet
socket
Before proceeding with probe calibration, remember to :
• Stop the filtration pump.
• Close any existing isolation valves.
• Remove electrode from probe holder.
• Insert gasket “D” (fig. 1), then close with the plug the hole in
the probe holder left free by the probe.
• Open any existing isolation valves.
• Switch on the filter pump and check that the PICO pH displays
a pH value. If it displays “OFF”, press the “ON/OFF” button to
switch it on.
• Proceed to calibrate the probe, then repeat the above steps
to replace the electrode.
Fig. 12
Wintering plug
Probe holder
O-ring seal