Operation Manual

Job Card No.:
Engine:
Filing No.:
Pressure Transmitter
Noris VD 61 - 2,5
0178-48- 297 6502
Inspecting Pressure Transmitter
Pressure transmitters are available for the following
media, depending on the scope of monitoring equip-
ment:
lube oil, fuel, control air, starting and charge air pressu-
re. Settings are indicated on the pressure transmitter
in “bar”. The inspection is carried out during operation
according to the intervals specified in the Mainte-
nance Schedule. In the case of pressure transmitters
with measuring ranges different from that indicated
here, the inspection should be done analogously.
Job
Preparation
● Clean housing (3).
● Check that all bolts/screws are tight.
● Check stuffing box screw union for possible leak (4).
Be sure no lead nor line can chafe!
Inspection
● Close shut-off valve (1)
● Remove screw plug (2), connect hose with test
connection. Fit a test gauge respectively a test
pump combined with pressure gauge to this
hose.
● Connect ammeter.
● Subject pressure transmitter with test pump to a
higher working pressure than specified - 6 bar at
a maximum, however.
Pressure transmitter must indicate on the con-
nected ammeter, depending on the measuring
range (e.g. 0-10 bar)
0 bar, corresponding to 4 mA,
6 bar, corresponding to 13,6 mA.
After Completed Inspection
● Remove test hose.
● Detach ammeter.
● Turn in screw plug (2).
● Open shut-off valve (1).
© 0185
11.01.02
S/BVM 628
Fig. 1
Calibration parameters for VD 61-2,5
Serial-Nr.: 1119202013 Day: 08-01-1992
Calibr.point 1
P1 = 0,000 bar
I1 = 4,01 mA Intermediate measurement
0,5 (P2 - P1) = 1,250 bar
Calibr.point 2
P2 = 2,500 bar Iout = 11.97 mA
I2 = 19,95 mA
Inp. range: 0...2,5 bar Output: 4...20 mA
Tools:
- Standard tools
- Test gauge
- Test hose with test connection
- Commercial test pump
- Ammeter (range 4-20 mA)
© 50 637 2