VWR 662-2283, Operating Manual

Page: 23 / 33

PH20 Operation | 8
B-H86.0.11.DB201-1.0 23 / 33
8 Operation
8.1 Commissioning
8.1.1 Explanation
Description
The product is switched on with the
On/Off button
. It may be necessary to configure
the product after switching on. See Configuration [
}
p. 23] .
Prerequisite – Sufficiently full batteries are inserted in the product.
– A suitable pH electrode is plugged in.
Instruction
– Press
On/Off button
.
Outcome of an action Information about the configuration of the product appears in the display.
POFF Automatic shut-
off Automatic shut-off activated. The product is
switched off if no buttons have been pressed after
the adjusted time
T.OF
Zero point correc-
tion If a zero point correction of the temperature sensor
was made
T.SL Gradient correc-
tion If a gradient correction of the temperature sensor
was made
(AL
Calibration Blinks if no valid calibration is available
The product is now ready for measurement.
NOTE
The product must be calibrated to the electrode prior to starting the measurement. If
the electrode is chosen, re-calibration is necessary. See Calibration and adjustment
service.
8.2 Configuration
8.2.1 Explanation
The following steps describe how to adapt the product for your purposes.
NOTE
There are various configuration parameters available depending on the product ver-
sion and configuration. They can differ depending on the product version and configur-
ation.
8.2.2 Opening the configuration menu
Description
In order to configure the product, you must first open the
Configuration
menu. The
menu is opened as shown in the illustration.
Prerequisite
– The product is switched on.
Instruction
1. Press the
Function key
for 2 seconds to open the
Configuration
menu.
2.
(ONF
appears in the display. Release the function key.