Product Overview

EP-8000 Series Electro-Pneumatic Transducers Product/Technical Bulletin 7
9. Connect an input signal to the unit: 0 to 10 VDC
for voltage models, 4 to 20 mA DC for current
models.
10. Set the input signal to the desired low value
(V
L
or I
L
).
11. Turn the zero adjustment screw to obtain the
desired low pressure (P
L
). Clockwise rotation
increases the pressure; counterclockwise rotation
decreases the pressure.
12. Set the input signal to the desired high value
(V
H
or I
H
).
13. Turn the span adjustment potentiometer to obtain
the desired high pressure (P
H
).
IMPORTANT: For voltage models,
counterclockwise rotation
decreases the pressure, and
clockwise rotation increases the
pressure. For current models,
counterclockwise rotation
increases the pressure, and
clockwise rotation decreases the
pressure.
14. Repeat Step 10 to check that the desired low
value (P
L
) has not changed after adjusting the
span. If necessary, repeat Steps 11 through 13
to fine tune the unit.
15. Disconnect the test probe assembly and gauge
from the unit.
16. Feed the input DC wires through the wiring entry
slot molded in the transducer cover, and snap the
cover into place.
R
epair Information
Field repairs must not be made. For a replacement,
see Table 1 in the
Ordering Information section, and
contact the nearest Johnson Controls representative.
O
rdering Information
Table 1: EP-8000 Models Available
Product Code
Number
Output Input Range
Factory Output Range
psig (kPa)
EP-8000-1
Low Volume (non-relay) 0.5 to 9 VDC 1 to 18 (7 to 126)
EP-8000-2
High Volume (relay) 0.25 to 9.5 VDC 0.5 to 19 (3.5 to 133)
EP-8000-3
Low Volume (non-relay) 4 to 20 mA DC 3 to 15 (21 to 105)
EP-8000-4
High Volume (relay) 4 to 20 mA DC 3 to 15 (21 to 105)
Table 2: Accessories Available
Product Code
Number
Description
R-3710 Series
0.007 in. Restrictor (required for low-volume models)
EP-8000-101
Electro-Pneumatic Transducer Mounting Kit
A-4000-137
Inline Air Filter (required for all models)
JC 5361
Hypodermic Needle Test Probe Assembly
G-2010 Series
0 to 30 psig (0 to 210 kPa) Gauge