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Figure 27 - The mA under range screen
6.4.4 Calibrating the mA output
Use the following procedure to calibrate the mA output:
1.
Select
Service
mA output.
Figure 28 - The mA output service screen
2.
Select the required 'Calibrate' option.
Figure 29 - The mA output calibrate screen
3. As soon as the mA output calibrate screen is shown, the nominal mA output value
is set to 20 mA:
Use your control/monitoring equipment (connected to the instrument) to
monitor the actual output value.
Use the
and
soft keys to increase or decrease the actual
output value until your control/monitoring equipment indicates 20 mA output.
4. When the mA output has been correctly calibrated, press the
soft key: the
mA output service screen (Figure 28) will then be displayed again.
The actual mA output value is controlled from the mA output calibrate screen
as long as the screen is displayed. As soon as the mA service screen is no
longer displayed, the mA output value will be updated to reflect the
corresponding gas measurement.
