Specifications

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kele.com 888-397-5353 USA
March 2014
Shown with Optional Pressure Gauge
UCP-422
UCO-44, UCO-44T OPTIONS
DESCRIPTION
The UCO-44 and UCO-44T Options are designed to be
used with the Kele UCP-422 Series electronic/pneumatic
transducer. The UCO-44 Option allows the UCP-422 to be
controlled by a pulse-width modulated (PWM) signal. The
UCO-44T Option allows the UCP-422 to be controlled by
a tri-state input signal. These options are mounted in an
expander ring attached to the UCP-422.
OPERATION
UCO-44 Option
The UCO-44 Option accepts a pulse-width modulated input
and produces an internal 4-20 mA current signal that controls
the UCP-422. The standard time base is 25.6 seconds but is
switch-selectable for any of the other four ranges. The UCO-
44 Option responds to the elapsed time when the controlling
computer closes the contacts wired in series with the signal
SIG IN + or SIG IN - terminals. Each pulse received will
produce a corresponding pressure output. The transducer will
hold this signal until given a pulse with a different value.
UCO-44T Option
The UCO-44T Option is controlled from two discrete contact
closures or one tri-state output from a controlling computer.
Each signal given the transducer will ramp an internal 4-20
mA signal up or down to control the UCP-422. A contact
closure wired in series with the SIG IN + terminal will increase
the output in proportion to the length of the signal given. A
contact closure wired in series with the SIG IN - terminal will
decrease the output in proportion to the length of the signal
given.
LED INDICATION
PWR LED - On when 24V is present
SIG LED - On only when an input signal is present
SPECIFICATIONS
UCP-422
Enclosure
UCP-422 Enclosure
Side View
in
(cm)
3.0
(7.6)
4.8
(12.2)
4.0
(10.1)
4.8
(12.2)
UCO-44/UCO-44T
Option
Expander Ring
Power LED
Signal LED
AUX
24
VDC
FBK
OUT
SIG
–
COM
SIG
+
FEATURES
• Selectable PWM time base 0.1-2.65, 5.2, 12.85, 25.6, or
0.59-2.93 sec
• Selectable tri-state time base 2.55, 5.1, 12.75, 25.5, 59.9,
90.5, or 119.9 sec
• 255-step resolution
• Positive or negative input reference
• AC/DC voltage
• LED indication
DIMENSIONS
Model Supply Voltage Supply VA Input Output
UCP-422-44
24 VAC/VDC
100 mA maximum (half-wave)
at 24 VAC, 50 mA at 24 VDC
PWM; time base 0.1 to 2.65, 0.1
to 5.2, 0.1 to 12.85, 0.1 to 25.6
(factory setting), or 0.59 to 2.93
seconds (internally DIP switch
selectable)
3-15 psig (21-103 kPa)
UCP-422-44T
Tri-state; time base 2.55, 5.1,
12.75, 59.9, 90.5, 119.9, or
factory-set 25.5 seconds (inter-
nally DIP switch selectable)