13
P4/P5/EP5 is when shipped from PMV pre-
calibrated for 90
±
0,5 deg rotation, (can also
be 30, 45 or 60 deg, see installed cam). For
most applications the valve closed position
is more critical than valve open position,
most attention should be paid at valve closed
position. Always start calibration procedure
by applying 0 % input signal, then adjusting
zero. P4/P5/EP5 is calibrated by turning
thumb wheels 1 & 4.
Arrows on arm 5 indicate turning direction
of thumb wheels.
< “+“ = Increase zero/span
> “–“ = Decrease zero/span
Calibration procedure
Check cam seating, section 6 before starting
calibration procedure.
1. Apply 0 % input signal (0% =
20 kPa/3 psi or 4 mA)
2. Wait for steady state.
3. Adjust zero by turning the silver (lower)
thumb wheel 4 with finger or with screw-
driver 7 from the outside.
4. Apply 100% input signal (100% =
100 kPa/ 15 psi or 20 mA)
5. Wait for steady state then memorize
result.
6. Apply 0% input signal.
7. Adjust span if necessary. This is done by
first loosing screw 2, then turning the
yellow (upper) thumb wheel 1 “+“ or
“–“ and finally tighten screw 2. Spring
top must not be in contact with spring
guide 3.
8. Check zero and adjust if needed.
9. Repeat steps 2 to 8 until desired
calibration is achieved.
7. Calibration
3
2
1
4
5
6
7
Summary of Contents for PMV EP5
Page 1: ...IOM Instructions P4 P5 EP5 alve Control System ...
Page 11: ...11 X Port plugged C1 C2 S C1 C2 S C1 C2 S I I I Direct function ...
Page 27: ...27 Dimensional drawing P4 ...
Page 30: ...30 Spare parts P5 EP5 84 ...
Page 32: ...32 84 Spare parts P5 EP5 ...
Page 34: ...34 18 Certificates Cenelec Atex black label ...
Page 35: ...35 Cenelec Atex black label ...
Page 36: ...36 ...
Page 37: ...37 Cenelec Atex white label ...
Page 39: ...FM White label ...
Page 40: ...CSA White label ...
Page 41: ......