Specifications

NEW!
TRANSDUCERS
1420
NEW!
TRANSDUCERS
23
WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.
kele.com888-397-5353 USA
March 2014
Installation
Mount the UCP-422 inside a NEMA 1 control panel in a clean, dry environment. Barbed fittings are provided for terminating
1/4" (0.64 cm) plastic tubing. The UCP-422 must be mounted in an upright position (refer to arrow on unit). For best results, the
transducer should be mounted within five degrees of the upright position.
Wiring
Make all electrical connections in accordance with job wiring diagrams and in compliance with national and local electrical codes.
Wiring terminations are made on screw terminals labeled SIG IN + and COM. Other terminals are provided where options are
specified (see options for UCP-422 on the following pages).
Checkout
Verify with a meter that a 4-20 mA DC signal is present and that polarity is correct. Verify that 20 psig (138 kPa) main air is
present. Be sure the UCP-422 is mounted in the upright position. Note: This is a rough functional check only. The UCP-422 is a
highly accurate device, and laboratory quality meters and gauges are required to properly check calibration.
To check transducer operation:
1. Adjust the input signal to 20 mA (or appropriate max DC voltage input). Branch pressure should be 15 psig (103 kPa).
2. Adjust the input signal to 4 mA (or appropriate min DC voltage input). Branch pressure should be 3 psig (21 kPa).
CAUTION: The UCP-422 uses parts that can be damaged by supply air containing synthetic compressor oil vapor,
acid fumes, or other corrosive vapors. Synthetic compressor oils must not be used. Standard control air filtering
practices should be observed:
• Supply air must be dried, oil-separated, and filtered using a refrigerated air dryer, a particulate filter, and a
coalescing type filter.
• The system must be properly maintained such that all particles larger than 0.03 microns are filtered out and that
less than 0.1 ppm oil vapor exists.
• At the compressor, using an absorbent pre-filter followed by a coalescing oil removal filter, such as the K-337-1 or
K-339, is recommended.
ELECTRONIC / PNEUMATIC TRANSDUCER
UCP-422 SERIES
INSTALLATION
ORDERING INFORMATION
MODEL DESCRIPTION
UCP-422 Electronic/Pneumatic transducer, 4-20 mA / 3-15 psig (21-103 kPa)
OPTIONS (for more information on each option, see the following catalog pages)
F
M
M2
V#
43
44
44T
47
UCP-422 M 43
Feedback loop control allows remote electronic readout of the output pressure. Units equipped with
feedback loop control may be calibrated between 3 and 15 psig. Special input/output calibrations should
be specified at time of order entry (i.e., 4-20 mA/8-13 psig). (Factory-installed option only.)
Manual output adjust allows easy checkout and manual selection
of the output pressure (factory-installed option only)
UCO-43 Pressure gauge indication (0-30 psig/0-200 kPa) - allows for local pressure indication
without giving up valuable panel space (factory-installed option only)
UCO-44 Pulse-width modulation - features selectable pulse-width time bases of 0.1-2.65,
5.2, 12.85, 25.6, or 0.59-2.93 sec (factory-installed option only)
UCO-44T Tr i-state input - allows variable pneumatic output control based on a selectable
tri-state input time base (factory-installed option only)
UCO-47 DIN rail mounting adapter - allows the UCP-422 to be mounted along with other devices
on the same rail (factory-installed option only)
Loop-powered manual adjust
24V-powered manual adjust
Voltage input V1: 1-5V, V2: 2-10V, V3: 3-15V (factory-installed option only)
Example: UCP-422-M-43-47 Electronic/Pneumatic transducer, 4-20 mA to 3-15 psig,
manual output adjust, pressure gauge, DIN rail
47
RELATED PRODUCTS PAGE
EP3-24VAC 24 VAC three-way air valve 895