Dual setpoint controller that is easy to program. Controls submersible pumps in lift stations, and is designed to field calibrate the Birdcage Level Sensor.

Standard Features:
  • Control ON-OFF for two pumps
  • Front-panel programming
  • Analog output for run times.
  • Secure menu for all other pre-set values
  • 24 VDC power for sensor
  • Accepts 4 - 20 mA or 1-5 VDC
  • Nonvolatile memory, no batteries
  • Alternation of pumps set as default
  • Setpoints continuously displayed, along with current level readings
The Bulldog is a setpoint controller designed primarily to accept the 4 - 20 mA output signal from the Birdcage level sensor, turn pumps on and off, and control alarm outputs.

This controller is simple and inexpensive. It is so simple that even the least-trained operator can program six standard level setpoints for the control of the pumps -the on/off setpoints for the two pumps and the settings for the two alarms. That's it! Everything else is defaulted to a secure menu, pre-programmed for the customer. Everything is readily available in case you have to change range or decimal placement, suppress the zero, or turn off the alternation, etc.
The flexibility and variety of options in the secure menu will be applauded by engineers, while the operators will never have to learn those programming steps. Nothing could be easier!
Unit of Measure


Setpoint Range

N/A Low and High points are selected independently


N/A Two 4 digit, 7 segment, 14.2mm (0.56") high LED's

Control Action

N/A Selectable for Reverse (pump up) or Direct (pump down); Selectable for alternation or not

Control Output Ratings

N/A Relays: 2 each SPDT, 10A@ 240 VAC resistive, 1/2 hp @ 120 VAC, 1/3 hp @ 240 VAC Alarm Relays: 2 each SPST 3A @ 240 VAC resistive, 1.5A @ 240 VAC inductive, pilot duty rating: 240 VA 2A @ 120 VAC or 1A @ 240 VAC

Additional Outputs

N/A Two switched voltage outputs mirror action of relays, for recording motor start cycles and run times


N/A ± 0.0025% of reading ± 1 least significant digit


N/A 1 count or 0.1 counts (sensor dependent)


N/A Relays and SSR outputs, 1500 VAC from all inputs and outputs; 24 VDC loop power, 500 VAC to all inputs and outputs

Power Consumption

N/A 5 VA maximum

Electrical Supply

N/A 100 to 240 VAC nominal, +10% to 15%, 50 to 400 Hz single phase; 132 to 240 VDC +10% to 20%

Loop Powered Supply

N/A isolated +24 VDC supplies power to the Birdcage or Pressure Sensor

Operating Temperature Range

N/A 10 to 55 ºC-14 to 130 ºF

Storage Temperature Range

N/A -40 to 80 ºC-40 to 175 ºF

Humidity Range

N/A 0 to 90% up to 40ºC for non-condensing

Memory Backup

N/A Non-volatile memory, no batteries

Panel Cutout

N/A 92 x 92 mm3.625 x 3.625 in

Depth Behind Mounting Surface

N/A 103 mm4.0 in


N/A 454 g16 oz

Front Panel Rating

N/A IP66 (Type NEMA 4X)