Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 49)

________________________________________________________________________________________________________________
42
switch source to current.
4. When sourcing current with internal power, the 24VDC loop power states must remain as ON. If the 24VDC power
state is OFF, it will be automatically turned back ON states after switching source to current with internal power.
5. Refer to the sections 8.3.1, 8.3.2, 8.3.3, 8.3.4 or 8.3.5, select a method to change the source value according to
your need.
8.3.12 Pressure source (only available for pressure
module)
Proceed as follows to pressure source:
1. Figure 8.16 shows the pressure source connections.
2. Connect the pressure module.
3. If source is active, press once, otherwise press
twice.
4. Press the navigation keys Up/Down to select the first
item from the pop‐up list, then press Enter orDone to
change the source to pressure.
5. You can press Units to view the pressure units list which
are supported by the calibrator. You can change the
pressure unit.
6. You can press Module to view the information about
the pressure module. Figure 8.16 Pressure Source