Brochure

EP-8000 Series Electro-Pneumatic Transducers Product/Technical Bulletin
2
Operation
A change in the electrical input signal modulates the
amount of air that exhausts from the leakport,
producing an output pressure directly proportional to
the input signal. Input and output pressure and flow
relationships are detailed in Figures 3 through 5.
A potentiometer located next to the wiring terminal
block is provided for field span adjustment, and a screw
located on the side of the EP-8000 is provided for zero
adjustment. (See Figure 2 for adjustment locations.)
The low-volume models are 1-pipe instruments, which
require a 0.007 inch restrictor (R-3710 Series, ordered
separately) in the supply air line.
Input Versus Output Relationship
Figure 2: EP-8000-1 Adjustment Points (Cover
Removed)
Figure 3: EP-8000-1 and EP-8000-2,
Output (psig) versus Input (Volts DC)
Figure 4: EP-8000-3 and EP-8000-4,
Output (psig) versus Input (mA DC)