APPLIES TO FIXED QSTAR UFM (Continued)
35
Specify the variable to be output at the analog output:
Select the value to be assigned to the 4 mA output
(Example Flow).
Select the value to be assigned to the 20mA output.
The analog outputs only support unidirectional flow.
i
QStar UFM can only provide positive flows to the
outputs. The flow display must return positive
values. What happens if the value exceeds the
setup high or low limits? Example: You expect
a flowrate of 100m3/h and assigned this rate
a value of 20 mA. However, the flowrate may
reach 130 m³/h. This means that a value of 20
mA will also be output for flowrates higher than
100 m3/h.
SETUP RELAY PARAMETERS
QStar UFM is equipped with a relay output.
This output can be assigned a function or a range.
Example of an external circuitry:
The relay has a NO (normally open) contact.
The contact is only closed when triggered by
a setup parameter function. The contact will
retain its open state on power failure. You do
not have to observe the polarity of the wiring
since it is potential free.
CAUTION
To access the “Relay” menu:
In the primary measuring window “Flow 1”:
Select
“SETUP” -> “CMPL SETUP”. In the main menu, select
-> “I/O Setup” -> “Relay:
Choose value (lower limit) for activation of relay. Relay
will be activated when measured value fall below the
limit.