GE DPI 610 IS, User Manual

Page: 28 / 68

14
K249 Issue No. 4
P
I
-
PRESSURE INT
bar
F2 F1
External
Pressure
Supply
OUTPUT
NEW VALUE
CURRENT
mA OK
+
+
- -
BARRIER
SAFE
SAFE
EXT
SUPPLY
max 30V
TASK : I-P
SNAPSHOT MODE
DPI 615 IS
Current to Pressure Converter (I-P) Task
Taking Measurements
• 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. A flashing CHECK LOOP
message indicates either an open circuit supply loop (or no external
supply).
Pressure Switch Test (P-SWITCH) Task
• 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 handpump, increase the applied pressure to just below the
switch operating point. Screw the volume adjuster in until the switch
operates (the operating pressure of the switch is then written to the
display).
• Reduce pressure until the switch releases (indicated by the switch symbol).
The release pressure is then written to the display and the hysteresis
displayed.
PRESSURE INT
bar
F2 F1
External Pressure Source
(Indicator Only)
Pressure
Regulator
RUN
CONTACT STATE
max 30V
TASK : P-SWITCH
SNAPSHOT MODE
DPI 615 IS