Servomex 2700 Quickstart Manual
Servomex 2700 Quickstart Manual
18
3.5.1 Testing the analogue outputs
This function allows the user to test and adjust the analogue
outputs. Select SET OUTPUTS, then mA OUTPUTS, then
0mA, 4mA or 20mA and then press ENTER to set all the
analogue outputs to 0, 4 or 20mA. If the span of the analogue
outputs needs adjustment, then potentiometers RV3 and RV4
on the control PCB may be used to set the 20mA point for the
combustibles and oxygen sensor outputs. Select QUIT or press
the MEASURE key to return to normal measurement. The test
function times out after 5 minutes.
3.5.2 Testing the relay outputs
This function allows the user to test the operation of the relay
outputs. Select SET OUTPUTS, then RELAYS and then SET
TO DISABLED or SET TO ENABLED to set all 4 of the relay
outputs to enabled or disabled state. Select QUIT or MEASURE
to return to normal measurement. The test function times out
after 5 minutes.
3.5.3 Delete history
Select SERVICE and then HISTORY. The option to delete the
alarm and fault history logs is then available.
3.6 Software filtration (Refer to Figure 3b)
Due to the fast response of the analyser, it maybe required to
'slow' the measurement signal, allowing it to be integrated into
certain control systems more easily.
This function allows the user to achieve this by setting a filtration
rate for the analyser from 0 to 9, in unit increments; 0 being
unfiltered and 9 being the maximum filtration rate. As a default
the filtration rate is set to 0.
CAUTION
Do not use this function if autocalibration is assigned to the
relays as this could cause damage to the transformer in the
utilities unit.