Channel Setup
MXD70 pH / Redox
Setup and Operating Guide
- 25 -
Channel Setup
Units
The channel can be configured as a pH, Redox or an
exclusively temperature input.
When “pH (XX.XX)” is selected the channel will
automatically apply the correct temperature
compensation and probe type to the electrodes raw
mV input to provide a display of pH. Note, the
instrument can also display the raw mV as a
secondary value on the front screen, see User
Interface guide for more details.
When “pH (XX.XXX)” is selected the channel will do as
above but will display pH to three decimal places.
When “Redox (mV)” is selected the instrument
displays the unprocessed input voltage to the
electrode terminals.
When “Temperature” is selected the channel only
shows the temperature input. All other sensor inputs
are ignored.
/ – Select Option
EXIT
– Cancel
– Save Selection
Probe Type
The input channel can scale its readings to operate
with either a glass or antimony probe. This sets the
isopotential point, for a glass electrode this is 7.00pH,
for an antimony electrode it is 0.00pH.
! A sensor calibration must be performed when
using a new sensor, see page 29 for details.
/ – Select Option
EXIT
– Cancel
– Save Selection
Temperature Input Sensor
Select the input channel’s temperature sensor type
for use with the sensor measurement’s automatic
temperature compensation.
If a temperature sensor is not connected to the input
channel then this menu item should be set to
disabled, else temperature input error messages will
be shown.
Note. When disabled is set a manual temperature
compensation value must be set.
/ – Select Option
EXIT
– Cancel
– Save Selection
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