Specifications

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kele.com 888-397-5353 USA
March 2014
Supply Voltage 24 VAC ±10% or 24 VDC ±10%
Supply Current 120 mA half wave @ 24 VAC, or 50
mA @ 24 VDC
Input
PWA-1A, -2A Pulse-width-modulation (PWM)
PWA-1T, -2T Tri-state/Floating, two dry contacts
Input Signal
PWA-1A, -2A PWM: Time base 0.1-2.56, 5.2,
12.85, 25.6 or 0.59-2.93 seconds,
DIP switch selectable
PWA-1T, -2T Tri-state/floating: time base 2.55,
5.1, 12.75, 25.5, 59.9, 90.5, or 119.9
seconds, DIP switch selectable
Wiring Terminations Screw terminals
Accuracy ±1% of span
Output Simultaneous current and voltage
outputs
Output Burden 650Ω maximum (4-20 mA); 25 mA
maximum combined current and
voltage
Output Current Factory set at 4-20 mA, adjustable
0-20 mA zero and span
Output Resolution 255 steps
Output Voltage Factory set 1-5 VDC, adjustable
(18 VDC maximum)
Operating Temperature 32° to 158°F (0° to 70°C)
Operating Humidity 5% to 95% RH (non-condensing)
Dimensions
PWA-1A, -1T 3.4"H x 2.0"W x 4.8"D
(8.6 x 5.1 x 12.4 cm)
PWA-2A, -2T 3.3"H x 4.6"W x 1.5"D
(8.3 x 11.8 x 3.8 cm)
Weight 0.8 lb (0.36 kg)
Warranty 18 months
DESCRIPTION
The Kele PWA-1A Pulse-to-analog Transducer converts a
DIP switch selectable pulse-width modulation (PWM) input
to 0-18V and 0-20 mA outputs (factory set for 1-5V and 4-20
mA). The PWA-1A is furnished in a unique slim-line design
housing, which saves panel space, and can be ordered with
an optional DIN rail mounting adapter. The PWA-2A is a
snap-track mounted version of the PWA-1A.
The PWA-1T tri-state-to-analog transducer converts two
contact closure inputs (tri-state/floating control) to 0-18V
and 0-20 mA outputs (factory set for 1-5V and 4-20 mA). It is
mounted in a unique slim-line design housing, which saves
panel space, and can be ordered with an optional DIN rail
mounting adapter. The PWA-2T is the snap-track mounted
version of the PWA-1T.
On all models, the outputs are zero and span adjustable for
a wide variety of ranges (factory set for 4-20 mA and 1-5 V).
Current and voltage outputs are active simultaneously.
FEATURES
• 255-step resolution in any range
• Adjustable zero and span
• Positive or negative input reference
• 0-20 mA and 0-18 VDC outputs (field adjustable)
• 4-20 mA and 1-5 VDC factory-set outputs
• User-selectable time base
• Jumper-selectable manual output
SPECIFICATIONS
PWA-1A
(PWA-1T)
PULSE / TRI-STATE-TO-ANALOG TRANSDUCERS
PWA SERIES
PWA-2A
(PWA-2T)