Nordson EPC-30 - Electronic Section

Series EPC-30 Current-to-Pressure (I/P) Transducer
6
Part 331276B
02
E 2010 Nordson Corporation
Troubleshooting the Pneumatic Section
NOTE: If the diaphragm fails, the transducer will leak internally.
Problem Possible Cause Corrective Action
Supply air on and the signal is set
to 4 mA
S Make sure that the air supply is
clean and oil free
Diaphragm failure
No output regardless of the input
signal
clean and oil free
S Unplug the bleed orifice screw
S Unblock the bleed orifice screw
Diaphragm failure
Sluggish response to an input
signal
S Unblock the bleed orifice screw
Bleed orifice screw may be
plugged or partially blocked
Electronic Section
The electronic section of the transducer consists of three basic parts. See
Figure 4.
A. Magnet
B. Coil/flexure assembly
C. Circuit board