43
LRGT 1x-x - Installation & Operating Manual -
819877-00
Bringing into service
Changing the display unit (µS/cm or ppm)
You can choose between µS/cm and ppm (parts per million) for the unit shown on the display.
The conversion for µS/cm to ppm is: 1 µS/cm = 0.5 ppm
Pay attention to the setting instructions on page 38 / 39 and proceed as follows:
1.
Select the parameter “
Unit
”.
2.
Press and hold the rotary knob until the current value flashes on the display.
3.
Set the desired display unit (µS or ppm).
Viewing the set unit via the LEDs (see “Fig. 17” on page 45):
■
■
LED 3
(green) = µS/cm
■
■
LED 4
(green) = ppm
4.
Save your setting by pressing the rotary knob for approx. 1 second.
Manually initiating a display test
Pay attention to the setting instructions on page 38 / 39 and proceed as follows:
1.
Select the parameter “
diSP
”.
2.
Press and hold the rotary knob until the display test starts and shows “
....
”.
3.
The following numbers and decimal points run across the display from right to left:
“...., 1, 2, 3, 4, 5, 6, 7, 8, 9, ....”
4.
Check that all numbers and decimal points are displayed correctly.
The display test runs automatically until it has finished, and cannot be interrupted.
5.
The display test ends with “
donE
”.
Replacing faulty equipment
Faulty equipment jeopardises system safety.
■
■
If numbers or decimal points are displayed incorrectly or not at all, you must replace the
conductivity transmitter with an identical one from GESTRA AG.
