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MAMAC - Electropneumatic Transducers

 
  • No air consumption

  • 100% solid state piezoresistive silicon pressure sensor

  • High air flow capacity

  • Field selectable 4-20 mA, 0-5 VDC or 0-10 VDC input

  • Universal 24 VAC/VDC supply voltage

  • Short circuit and reverse polarity protected inputs and outputs

  • Auto/manual switch with separate increase/Decrease pushbuttons (EP-313)

  • Precision pressure gauge for branch line indication

  • Non-interactive zero and span trimmers

  • Smallest size in the industry

  • Conforms to EMC standards EN50082-1/ EN55014/EN60730-1

The EP-311/313 incorporates a quiet low-wattage poppet valve and pressure sensor to measure and adjust the branch line pressure proportional to the input. This unit has no air consumption and is immune to mounting orientation or supply line pressure fluctuations. The EP-313 incorporates a manual override switch and, in the manual mode, the pressure can be increased or decreased with two pushbutton switches. This feature is most desirable for check out/commissioning and manual operation in case of controller failure. Universal 24 VAC/24 VDC supply voltage and field selectable 4-20mA, 0-5 VDC, or 0-10 VDC inputs ensures single unit compatibility to most of the systems. Unique steel chassis design substantially reduces the overall size of the unit and, at the same time, provides for ease of installation in a control panel directly or with a snap track. A precision gauge is provided for the branch line pressure. Rugged aluminium manifold, brass barb fittings, floating poppet solenoid valves, silicon pressure sensor, high performance electronics and a liberal two year warranty are some of the features which make the EP-311/313 the highest performance and the most reliable electropneumatic transducer in the industry.

 

SPECIFICATIONS:

Accuracy*: ± 1% FS

Maximum Supply Pressure: 40 psig

Pressure Differential: (Supply to Branch) 0.1 psig

Supply Voltage: 18-28 VAC/VDC

Supply Current: 150 mA

Enclosure: 18 Ga C. R. Steel Chassis

Finish: Baked on enamel-PMS2GR88B

Compensated Temp Range: 25°F-150°F (4°C-65°C)

Conformance: EMC Standards EN50082-1(1992) EN55014(1993)/EN60730-1(1992)

*Includes non-linearity, hysteresis and non-repeatability

T. C. Error: ±0.025%/°F (.03%/°C)

Media Compatibility: Clean dry air or any inert gas

Port Connection: 1/4"OD poly tubing

Environmental:10-90%RH Non-Condensing

Termination: Screw terminal block

Wire Size: 12 Ga max.

Input Impedance: 301 ohms (4-20 mA)

10K ohms (0-5/0-10 VDC)

Weight: 1.0 lbs. (.45 kg)

 


ORDERING INFORMATION: EP-



          311 (without)

          313 (with)

315 (3-15 psig)

020 (0-20 psig)