Flowserve PM15E Electro-Pneumatic Valve Positioner - Manual (Page 10)

14. TROUBLESHOOTING
NOTE: All PM15E positioners are serialized and date coded. Please
note date, and provide the serial number when contacting the factory
for troubleshooting or service.
Signal change results in actuator running to end positions:
_____ Check coupling between positioner and actuator.
_____ Check cam position and locking screw.
_____ Check input signal.
Signal change has no effect on the actuator position:
_____ Check indicator and screw.
_____ Check air supply to positioner and tubing to the actuator.
_____ Check input signal to positioner.
_____ Check diaphragm for damage or leakage.
_____ Check pilot valve function.
_____ Check cam for correct setting.
_____ Check I/P output.
Inaccurate positioning:
_____ Dirty or worn pilot valve.
_____ Defective or leaking diaphragm.
_____ Input signal fluctuates.
_____ Incorrect sizing of actuator.
_____ Valve/actuator “stiction”.
_____ High valve/actuator breakaway torque.
_____ Loose cam.
15. TECHNICAL DATA
Input Signal 4-20 mA
Linearity < 0.75%*
Hysteresis < 1%*
Repeatability < 0.5%*
80% Load (Supply Pressure 87 psi) 1,000 (kPa/kPa) (psi/psi)
50% Load (Supply Pressure 87 psi) 1,250 (kPa/kPa) (psi/psi)
Air Consumption at Supply Pressure ± 20%
0.2 MPa/29 psi 6.1 nl/min 0.22 SCFM
0.4 MPa/58 psi 13.6 nl/min 0.48 SCFM
0.6 MPa/87 psi 22 nl/min 0.78 SCFM
0.8 MPa/116 psi 30.5 nl/min 1.08 SCFM
1 MPa/145 psi 39 nl/min 1.38 SCFM
Air Delivery at Supply Pressure ± 20%
0.2 MPa/29 psi 200 nl/min 6.9 SCFM
0.4 MPa/58 psi 370 nl/min 12.8 SCFM
0.6 MPa/87 psi 540 nl/min 18.8 SCFM
0.8 MPa/116 psi 710 nl/min 24.7 SCFM
1 MPa/145 psi 880 nl/min 30.6 SCFM
Supply Pressure 0.15-0.9 MPa/21.8-125 psi
Temperature Range -20°C to +85°C
(-4°F to 185°F)
Connector Threads 1 /
4
" NPT
Gauge Threads 1 /
8
" NPT
Weight Std. 1.5 kg/3.4 lbs.
Weight with Gauges 1.8 kg/3.9 lbs.
Ingress Protection IP 66/NEMA Type 4
*Percent of full scale.
Flow Control Division
Worcester Controls
10 Model PM15E Electro-Pneumatic Valve Positioner WCAIM2017