Omega MPCJR User guide

4-1/2

PA

SERIES MPC JR

E

PUMP CONTROLLER

One or Two Pump Control with Built-In Alternation

LEVEL

E

O

D

I

V

O

N

L

I

N

The Series MPC JR 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.

BENEFITS/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 (4-20 mA) or voltage (2-10 VDC)
analog signal

• Analog output on pump “on” condition for activation of separate pump run time
meters

APPLICATIONS

• Water and wastewater

• Sumpandsludgepits,clariers,digesters

• Chemical storage tanks

• Oil tanks

• Reservoirs

[114.3]

17/32
[13.5]

3-19/32

[91.3]

NEL CUT-OUT: 3.620 X 3.620 IN, +0.032/-0.000

ALLOW FOR 0.5 IN [13 MM] CLEARANCE

AT THE REAR OF THE INSTRUMENT.

[92 X 92 MM, +0.8/-0.0].

3-25/32

[95.9]

MAX. PANEL
THICKNESS 0.25 [6.35]

3-25/32

[95.9]

MEETS IP66 [UL TYPE 4X]

SPECIFICATIONS
Inputs: 4 (or 0) to 20 mA DC or 2 (or 0) to 10 VDC selectable.
Input Impedance:Current=10Ω;Voltage=5KΩ.
Output Ratings: Control relays: SPDT, rated 10 A @ 240 VAC res.,1/4 hp @ 120

VAC,1/3hp@240VAC;Alarmrelays:SPST,3A@240VACres.,1/10hp@120
VAC;Others:15VDC@20mAforoutputoneandoutputtwo.

Control Type: On/off, reverse (pump out) or direct (pump in) acting.
Power Requirements:100-240VACnominal,+10%-15%,50to400Hz,single

phase;132-240VDCnominal,+10%-15%.

Power Consumption:7.5VAmax.
Accuracy:±0.25%ofspan,±1leastsignicantdigit.
Display:Two4-digit,7segment0.56˝highLED’s.
Display Resolution: 1 count.
Memory Backup: Nonvolatile memory (no batteries required).
Serial Communications:OptionalRS-232orRS-485withModbus

®

protocol.

Ambient Operating Temperature/RH:14to131°F(-10to55°C)/0to90%upto
104°F(40°C)non-condensing,10to50%at131°F(55°C)non-condensing.

Front Panel Rating:MeetsULType4X(IP66).
Loop Power Supply (Isolated):24VDC@50mA,regulated.
Weight:16oz(454g).
Compliance: cULus.

Level/Pump

Controllers

MODEL CHART
Model Description
MPCJR Pump controller

OPTIONS
To order add sufx: Description

-232

-485

-RC

-RV

ACCESSORIES

Weatherproof Enclosures, NEMA 4X (IP66).u

RS-232 Modbus

RS-485Modbus

Retransmission of input, 4-20 mA
Retransmission of input, 0-10 VDC

®

RTU serial communications

®

RTU serial communications

A-901

Modbus®isaregisteredtrademarkofSchneiderElectricUSA,Inc.

See page 330 (Series PBLT2)

Compatible Level Transmitters: See page 328 (Series SBLT2)

uSee page 339 (Series A-900 & A-901)

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