Programmable level controller XY

with relay outputreal-time monitoringfor storage tanks

Product overview The XY Series Level Display Control Box is a centralized panel for remote liquid-level monitoring and pump and valve control. It accepts standard 4-20mA signals from level transmitters, pressure sensors or float switches, presents real-time level via LED digital or combined digital+bar-graph display, and provides configurable relay outputs to start/stop pumps, operate valves or trigger alarms. Designed for control rooms and field installations, it reduces the need for manual site visits to check levels or operate equipment.

Key Features

• Real-time level display — LED digital or dual digital + bar-graph readout for immediate level/volume visualization.
• Flexible input compatibility — Standard 4-20mA input; other signal types available on request.
• On-site programmable setpoints — Upper and lower control/alarm points adjustable via front-panel buttons; no PC required.
• Relay outputs for direct control — Multiple relay contacts (field-adjustable; typical rating 5 A or higher) for pumps, solenoid valves, alarms or actuators.
• Manual/Automatic operation — Front-panel manual override for maintenance and automatic control during operation.
• Communication options — Optional RS-485 (Modbus) or 4-20mA retransmission for SCADA/BMS integration.
• Rugged enclosure — Metal or polycarbonate wall-mount enclosure; weatherproof and explosion-proof variants available.

Technical specifications

• Input signal — 4-20mA (standard); other signals on request.
• Display type — LED digital or dual digital + bar-graph.
• Control outputs — Relay contacts (2 or more, field-adjustable; typical rating 5 A or higher).
• Control modes — Manual / Automatic.
• Programmable setpoints — Upper and lower limits adjustable on-site.
• Power supply — AC 220 V standard; DC 24 V optional.
• Enclosure — Metal or polycarbonate, wall-mount; optional weatherproof/explosion-proof variants.
• Options — RS-485 (Modbus), 4-20mA retransmission, additional I/O.

What It Controls

• Pumps (duty/standby, lead-lag)
• Solenoid valves
• Alarm buzzers and signal lights
• Fans and ventilation equipment
• Motorized valves and actuators

Where It's Used

• Water & wastewater — pump/lift stations, treatment tanks
• Buildings & facilities — water towers, sumps, roof tanks, boiler feedwater
• Industrial processes — chemical storage, food processing, oil/water separation
• Agriculture & irrigation — reservoir level control, irrigation pump management
• Fire protection — fire water tank level monitoring and pump control

Typical options

• Weatherproofing and NEMA/IP-rated enclosures
• Explosion-proof certified housings
• RS-485 Modbus communication
• 4-20mA retransmission and additional I/O modules