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Valves & Actuation
peaktronic series 94

Peaktronics Positioner

The DHC-100 positioner is a high performance, high resolution digital positioner. A simple three button control is used to configure ALL parameters that the unit needs for a variety of applications, and eliminates the need for special meters and/or tools for calibration. As long as there is supply power, the unit can easily be field calibrated

This positioner can be calibrated for various command types (such as 4-20mA, 1-5VDC, 0-5VDC, 0-10VDC, or digital) and also the default operation upon loss of command (such as fail open, fail close, or fail as is). The optional transmitter/auxiliary switch module is installed into the positioner card via plug and socket. This allows a user defined feedback signal of current or voltage, and provides 3-SPSt relay contacts for open position, closed position, and a fault condition.

Ideal Applications Include:

Precise throttling

Specifications

Power Requirements:

DHC-100: 117VAC +/- 10%, 50/60 Hz, 12 VA typical (not including output load)

Fuse Type:

5A TR5 Slo-Blo (replaceable)

Command Signal Input:

120 VAC 1Ph 50/60 Hz

Loss of command threshold:

<0.75V or >5.5V (1-5 VDC input), <3ma or >22mA (4-20mA input)

AC Motor Outputs:

State Leakage Current: <15mA
Maximum Load Current @ 150C: 5A

Input Impedance:

20K ohms (1-5 VDC, 0-5 VDC, 0-10 VDC), 251 ohms +/-1% (4-20mA input)

Feedback Signal Input:

Input Voltage: 0 to 2.5VDC
External Feedback Potentiometer: 1K ohm

Power Supply Inputs:

+15V OUT (J2-8): 125mA maximum (not including option module)
+5V OUT (J2-7): 5mA maximum
NOTE: Do not connect these outputs to other power supplies

Environmental

Operating Temperature Range: 32F to 150F
Storage Temperature Range: -40F to 185F
Relative Humidity Range: 0 to 90% (noncondensing) 

Features/Benefits

  • High resolution
  • Simple Pushbutton calibration
  • Calibrated as standard or reverse acting
  • Multi-meter not required for potentiometer calibration
  • Options install into positioner via plug and socket
  • Selectable fail position for loss of input signal: fail open, fail close, or fail as is
  • Selectable input signal: 4-20mA, 1-5VDC, 0-5VDC, 0-10VDC, or digital
  • Loss of command and feedback potentiometer fault detection
  • Motor stall detection will sense when the motor has reached a stall condition and remove power from the motor

Resources

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