Description
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
Configure
Specifications
Specifications
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
Applications
Applications
- Water and Wastewater
- Sump and Sludge Pits, Clarifiers, Digesters
- Chemical Storage Tanks
- Oil Tanks
- Reservoirs