K415 Issue No. 1 14
Current to Pressure Converter (I-P) Task
A - External pressure supply B - Pressure to current device (24V)
•Use the up and down cursor keys to adjust the loop current to the required
value. Alternatively, press ENTER and use cursor keys to enter a finite value. Cursor
keys can then be used to nudge the output either up or down. If required, change
pressure units with INPUT key.
Pressure Switch Test (P-SWITCH) Task
A - External pressure source (indicator instruments only)
B - Pressure regulator C - Pressure switch under test
• Contact state will be shown on display. When contacts close, buzzer sounds.
• To run switch test, close vent valve and press the RUN (F1) key.
• Using the hand-pump, increase the applied pressure to just below the switch
operating point. Screw the volume adjuster in until the switch operates (the display
then shows the operating pressure of the switch).
• Reduce pressure until the switch releases (indicated by the switch symbol). The
display then shows the release pressure and the hysteresis value.
P
I
+ (24V)
-
bar
F2F1
SORTIE
NOUV VAL
mA
OK
FCT. : I-P 24V OFF
MODE ENREG. RAPIDE
DPI 615
B
A
bar
F2F1
DEMARRER
ETAT CONTACT
A
B
FCT. : P-PRESSOS 24V OFF
MODE ENREG. RAPIDE
DPI 615
C
Taking Measurements