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109118-1 Rev. A,10/96
2
2.7
Changing the Resolution
The resolution in pH can be changed between one and two
decimal places. Start by pressing
to freeze the display.
Use the
to change resolution from 0.0 to 0.00
Use the
to change resolution from 0.00 to 0.0
Press
to resume normal operation.
2.8
Chart Recorder
REC
Socket Polarity
The
REC
socket (2.5 mm phone jack) provides a voltage
proportional to the displayed reading in pH and mV modes. The
polarity of the output is the same as the polarity of the input
signal.
Approximate Recorder Outputs
pH
- Output follows display and provides approximately
60 mV output per pH unit. This value will vary with
changes in electrode slope.
mV - Output follows display, i.e. as display varies from –1999
to 1999 mV, output varies from –1999 to +1999 mV.
The recorder output is not available for temperature readings.
<
<
read
read
—ve
+ve
