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English
Pushbutton Functions
Button Fun ction
U
Press to select a pressure unit. All units are available when the
pressure sensor input is used. For higher pressure module inputs,
inappropriate units are not available.
Press
O
on while pressing
U
to source loop voltage.
D
ENTER
Press to toggle pressure reading damping on and off. With
damping on, the display does not update as quickly.
Press to confirm selection of 0% and 100% output parameters.
Z
Press to zero the pressure display. (Vent pressure to atmosphere
before pressing.)
With an absolute pressure module, see instructions below.
N
Press to read the minimum pressure and current readings since
power was turned on or the registers were cleared. Press again to
read the maximum pressure and current readings since power was
turned on. Press and hold to clear the MIN/MAX registers.
S
Press to perform switch test.
Z
a
Press to toggle the mA display mode between mA, mA
Percent, and mA Percent Error.
h
Y
Press
h
to freeze the display.
The
gsymbol appears on the display. Press h
again to resume normal operation.
In ZERO mode, press to decrease barometric pressure.
Switch Test
To perform a switch test, do the following:
Note
This example uses a normally closed switch. The procedure is the same for
an open switch but the display reads OPEN instead of CLOSE.
1. Connect the Calibrator mA and COM terminals to the switch using the
pressure switch terminals and connect an external pump between the
Calibrator and the pressure switch using a tee fitting. The polarity of the
terminals does not matter.
2. Make sure the vent on the pump is open and zero the Calibrator if necessary.
Close the vent after zeroing the Calibrator.
3. Press S to enter pressure switch test mode. The Calibrator will display
CLOSE instead of a mA measurement.
4. Apply pressure with the pump slowly until the switch opens.
Note
In the switch test mode, the display update rate is increased to help capture
changing pressure inputs. Even with the enhanced sample rate, pressuring
the device under test should be done slowly to ensure accurate readings.
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