Section 3 -
Section 4 -
Section 5 -
No attempt should be made to repair the meter.
mV Calibration and Measurement
Absolute mV
1.
Switch the mode dial to mV
2.
Connect the shorting plug to the BNC input and adjust the CAL control until the display
reads 000mV
3.
Remove shorting plug and connect electrode(s).
4.
Absolute mV readings may now be made by immersing the electrodes in the sample
and recording the reading.
Relative mV
1.
Switch the Mode dial to mV
2.
Connect electrode(s)
3.
Immerse electrode(s) in the standard or blank solution and adjust the CAL control until
the display reads 0mV. (Note, the maximum offset is 60mV).
4.
mV values relative to the standard solution may now be taken by immersing in the
sample and recording the reading.
Use of the recorder output
1.
Connect the recorder via the red and black 4mm sockets on the back panel. (Red
positive, Black negative)
2.
Ensure that the recorder is set for the appropriate range, as shown below.
MODE
RANGE (mV)
DISPLAY
RECORDER
pH
0-200
7.00pH
70.0mV
mV
±200
500mV
50.0mV
°C
±200
25.0°C
25.0mV
Troubleshooting
I
n the event of a malfunction, it is important to pinpoint the problem to either the meter
or the cell. If a spare cell is available, substitute it for the one in use.
There are no user serviceable parts in this instrument. Please ensure that the instrument,
together with all accessories, is returned to EDT Direct ION Ltd or the agent with a full
description of the symptoms.
