Specifications

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kele.com 888-397-5353 USA
March 2014
Supply Voltage
CP-8551 None, 4-20 mA loop-powered
CP-8552, -8511 20 to 30 VAC, 50/60 Hz or
24 to 30 VDC
Supply VA 3.9 VA (CP-8552)
Supply Watts
CP-8552 1.6 W maximum
CP-8511 3.8 W
Input
CP-8551 4-20 mA
CP-8552 4-20 mA, 0-10 VDC, 6-9 VDC,
jumper selectable
CP-8511 4-20 mA, 1-5 mA, 6-9 VDC, 1-5 VDC,
0-10 VDC, 1-11 VDC, 2-10 VDC,
jumper selectable
Input Impedance
CP-8551 550Ω
CP-8552 550Ω (current input); >10 kΩ
(voltage input)
CP-8511 250Ω @ 4-20 mA; 1000Ω @ 1-5 mA;
>10 kΩ for voltage inputs
Wiring Terminations Screw terminals for 16 to 22 AWG
wire
Action
CP-8551, -8552 Direct acting
CP-8511 Direct or reverse acting,
jumper selectable
Air Capacity 550 scim (150 ml/s)
Air Connections Barbed fittings for 1/4" OD tubing
Air Consumption 0.012 scfm (5.66 ml/s) @ 20 psig
(138 kPa) supply
Maximum Pressure 30 psig (207 kPa) maximum
Media Compatibility Clean, dry air, 20 psig nominal
supply pressure
Linearity ± 1% of span @ 75°F (24°C)
Hysteresis 0.75% of span @ 75°F (24°C)
Output 3-15 psig (21-103 kPa)
Output Voltage 20 VDC auxiliary output (CP-8511
only), 50 mA maximum
Adjustments
CP-8552 Adjustable start point and span
potentiometers for voltage input
CP-8511 Field adjustable zero potentiometer
Manual Override Auto/manual switch enables output
override using a manual output
potentiometer, LED goes off when in
Manual mode (CP-8511 only)
Feedback Auto/manual feedback provided
by isolated open collector output
transistor (TP1, TP2) (CP-8511 only)
Operating Temperature 32° to 140°F (0° to 60°C)
Operating Humidity 5 to 95% RH, non-condensing
Mounting Vertical, within 5°
Enclosure Rating NEMA 1
Dimensions
CP-8551, -8552 4.6"H x 2.8"W x 2.6"D
(11.8 x 7.1 x 6.8 cm)
CP-8511 4.6"H x 5.0"W x 2.6"D
(11.8 x 12.7 x 6.8 cm)
Weight
CP-8551, -8552 0.4 lb (0.2 kg)
CP-8511 0.8 lb (0.4 kg)
Approvals UL 873, file #E9429; CSA,
C22.2 No. 24-93;
CE, EMC Directive 89/336/EEC,
low voltage directive 72/23/EEC
Warranty 1 year
ELECTRONIC / PNEUMATIC TRANSDUCER
CP-8500 SERIES
DESCRIPTION
The Kele CP-8500 Series Electronic / Pneumatic
Transducers handle a wide variety of pneumatic valve and
damper applications that require a 3-15 psig control signal
from an electronic controller output. The CP-8551 is a basic
two-wire loop-powered unit with 4-20 mA input. The CP-8552
is a 3-wire unit with a jumper-selectable input for 4-20 mA,
6-9 VDC or 0-10 VDC. The CP-8511 has a variety of jumper-
selectable inputs, a pressure gauge, manual override, and
20 VDC power output for auxiliary components.
FEATURES
• Panel or DIN-rail mount for quick snap-on installation
• High accuracy and low hysteresis for precise control
• Long-term, driftless operation with high repeatability
for long life and high performance
• Low air consumption to save energy
• High airflow capacity to handle large pneumatic
components and long tubing runs
• Models with field-selectable inputs
• Integral 20 VDC auxiliary power supply, pressure
gauge and manual override on CP-8511
SPECIFICATIONS
CP-8551 CP-8511-024