Dwyer Pump Controller, Series MPCJR
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Series MPCJR Pump Controller

Brand: Dwyer Instruments, LLC
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The Mercoid MPC Junior Pump Controller provides versatile level control in a standard 1/4 DIN package.

Designed for use with almost any style level transmitter the unit displays the present level and main set point value.

 Incorporated in the MPC Jr. is programmable level differential for on/off control of one or two pumps, valves, or other devices through two SPDT relays.

Also featured are two additional programmable alarm contacts with front alarm light indication.

The MPC Jr. is flexible and incorporates a user-friendly programming menu. The front face meets NEMA 4X for outdoor panel mounting.
Features
  • Selectable pump alternation when used with two pumps to minimize pump wear Integral 24 Vdc power supply for transmitter
  • User selectable security lock-out of programming and/or set points
  • Optional process input retransmission as a current (4 to 20 mA) or voltage (2 to 10 Vdc) Analog signal
  • Analog output on pump “on” condition for activation of separate pump run time meters

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Specifications

Brand

Accuracy

  • ± 0.25 % of Span, ± 1 Least Significant Digit

Ambient Temperature Range

  • -10° to 55° C (14° to 131° F)

Approvals & Certifications

  • CE
  • cUL

Communication

  • RS-232 & RS-485 Modbus RTU Serial Communications
  • RS-232 with Modbus Communication Protocol
  • RS-485 Modbus Communication Protocol

Consumption

  • 7.5 VA, Max.

Display

  • 0.56” High LED’s
  • 4-Digit LED
  • 7-Segment

Electrical Rating

  • 10 A at 240 Vac Resistive, 1/4 hp at 120 Vac, 1/3 hp at 240 Vac - Control Relays
  • 3 A at 240 Vac Resistive, 1/10 hp at 120 Vac - Alarm Relays

Environmental Protection

  • IP66
  • NEMA 4X
  • Weatherproof

Humidity

  • 0 to 90 % up to 40° C (104° F) Non-Condensing
  • 10 to 50 % at 55° C (131° F) Non-Condensing

Input

  • 0-10 Vdc - Re-transmission of Input
  • 2-10 Vdc
  • 4-20 mA - Re-transmission of Input

Input Impedance

  • 10 ohms - Current
  • 5 kiloohms - Voltage

Power Options

  • Loop Power: 24 Vdc at 50 mA

Power Requirement

  • 100 to 240 Vac Nominal, +10 %-15 %
  • 132 to 240 Vdc Nominal, +10 %-15 %
  • 50/400 Hz

Resolution

  • One Count - Display

Switch Type

  • SPDT - Control Relays
  • SPST - Alarm Relays

  • Water and Wastewater
  • Sump and Sludge Pits, Clarifiers, Digesters
  • Chemical Storage Tanks
  • Oil Tanks
  • Reservoirs

Documentation

Catalogs

Manuals

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