• Easy-to-use operator interface
• Duplex pump alternation, two runtime meters and adjustable on-delay
• Display each pump's runtime up to 99,999.9 hours

OPEN BOX ITEM: Refurbished by manufacturer. Confirmed to be fully-operational. Item has cosmetic damage. Small scuffs on rear of case near wiring terminal markings. Serial# 3521/4822R or 3420/4822R.

Controllers provide total control of one- or two-pump systems. Use them to monitor, control and display liquid level up to 34.6 feet deep using any 15-psi 4-20 mA transmitter (additional pressure ranges available). Control functions include duplex alternation and hand-off-auto switches. Additional features include run-time metering, level simulation and programming of up to five set points.

Each unit offers five output functions: low alarm, pumps off, level 1, level 2 and high alarm. Four heavy-duty 10A output relays provide pump control and alarm activation. Universal 1 to 30 second on-delay can be programmed to prevent outputs from closing on input fluctuations due to turbulent conditions. SPDT power loss relay allows activation of an autodialer or other emergency device. Use the 4-20 mA output with zero and span controls with a chart recorder or other external device. Built-in transmitter power supply allows for easy wiring.

Note: Use for signal/control duty only; not for direct pump operation.

• Range: 0 to 34.65 feet (15 psi); Accuracy: ±1% of scaled max (fixed conditions)
• Input: 4-20 mA, 2 or 3 wire, 250 max
• Transmitter power: 24 VDC regulated; Operating voltage: 120 VAC, 50/60 Hz
• Dimensions: 12"W x 5.5"H x 4.75"D