Horizontal panel mounting design saves cabinet installation space with neat wiring layout, suitable for standard control cabinet unified assembly.
Combined dual display of digital numerical value and light column bar graph; on-site staff can quickly read measured data and level height intuitively at a glance.
Integrated control and transmission all-in-one machine, featuring local logic interlock, alarm output and standard signal transmission without additional secondary instruments.
Adopts industrial-grade MCU and full digital circuit design, strong anti-electromagnetic interference capability, stable operation under harsh industrial working conditions.
Multiple signal input compatibility, perfectly matched with radar, magnetostrictive, capacitance and other liquid level, pressure and flow sensors.
Rich output interfaces: 4–20mA analog signal, multi-channel relay alarm contacts and RS485 Modbus-RTU communication, easily connected to PLC, DCS and upper monitoring system.
Panel key parameter calibration and setting are supported, no upper computer required for on-site debugging, greatly shortening installation and commissioning cycle.
Complete built-in electrical protection including reverse power connection, overvoltage, short circuit and overload protection, effectively extending service life of the whole device.
Light column alarm segments can be freely partitioned; upper/lower limit thresholds and relay NO/NC modes are configurable to meet diversified process interlock requirements.
Modular structure facilitates individual module replacement and later maintenance, reducing equipment downtime and after-sales maintenance costs.
Introduction
Technical Parameters
Design features
Product Features and Model Parameters
Dual display design: 4-digit LED digital exact value display + segmented light column percentage indication, convenient for field reading.
Universal signal input: compatible with PT100/Cu50 thermal resistors, multiple thermocouples, 4–20mA, 1–5V and other standard analog signals, parameter switching via keys.
Multiple relay control outputs: up to 4 groups of relays, freely set upper/lower limits and hysteresis, realizing interlock control of valves and pumps.
Isolated 4–20mA/1–5V retransmission output, high conversion precision, long-distance signal transmission matched with PLC/DCS.
Optional isolated RS485 Modbus-RTU communication, remote parameter modification and centralized networking monitoring.
Built-in DC24V/12V sensor excitation power supply, directly power two-wire transmitters, simplify on-site wiring.
Digital automatic drift correction, no frequent field calibration required, stable long-term operation.
Horizontal panel embedded installation, complete input-output-power isolation, strong EMC anti-interference capability.
Transmitter output
4-20mA
Communication output
RS485
Product
Basic Meter Add Transmitter Output Add Communication Output
| Working Power Supply | AC/DC85~230V (High-Voltage Type), DC18-30V (DC Low-Voltage Type) |
| Measurement Accuracy | 0.2%FS |
| Transmission Accuracy | 0.5%FS |
| Sampling Rate | 5~10 Times/Second |
| Power Supply Output | DC24V/50mA (Precision Voltage Regulation, Output Short-Circuit Protection) |
| Relay Contact | AC250V 7A |
| Operating Temperature | -20~50℃, 20~90%RH |
Main Functions
Real-time display: LED digital exact measured value + segmented light column full-scale percentage visualization.
Multi-signal acquisition: compatible with thermal resistance, thermocouple, standard current/voltage and resistance sensors, one-key parameter switching.
Limit alarm & interlock control: multi-channel relay output, freely configure high/low limit values and hysteresis difference to control pumps, valves and executing devices.
Signal retransmission: isolated 4–20mA/1–5V analog output for access to PLC, DCS and secondary instruments.
Remote communication: optional isolated RS485 Modbus-RTU interface for remote data reading and parameter editing.
On-site power supply: built-in DC12V/24V excitation power to directly supply power to two-wire transmitters.
Automatic drift compensation: digital zero and gain correction to guarantee long-term stable measurement without frequent calibration.
Application Scenarios
Liquid level monitoring and pump start-stop interlock control for water supply and sewage treatment stations.
Tank pressure, material level and temperature real-time monitoring and valve regulation in chemical storage areas.
Flow, temperature and pressure closed-loop control loops of thermal power plants and metallurgical production lines.
On-site local display and signal transmission of various process measuring points in energy management systems.
Application Scope
Water industry: tap water plants, wastewater treatment plants, pumping stations, sewage lift stations.
Chemical industry: chemical reaction kettles, storage tanks, pipeline process parameter monitoring.
Energy & power: thermal power plants, distributed energy stations, substation auxiliary measurement points.
Metallurgy & machinery: smelting furnaces, rolling production lines, industrial pipeline monitoring stations.
Other industrial automatic control occasions requiring local display, limit control and signal remote transmission.
Notes
Confirm the input signal type, relay channel quantity, retransmission signal and communication function before ordering to avoid model mismatch.
Wiring must strictly separate strong current relay terminals, power terminals and weak current signal terminals to prevent signal interference.
The instrument is horizontally panel-mounted; keep the panel front IP65 sealing gasket intact during installation to avoid dust and water ingress.
For thermocouple wiring, use special compensation wires and complete cold junction compensation setting to ensure measurement precision.
Do not install the device in environments with strong corrosive gas, explosive gas or long-term condensation.
The load resistance of 4–20mA retransmission output cannot exceed the maximum allowable load value specified in parameters.
Disconnect the power supply before modifying internal parameters or rewiring terminals to prevent short circuit and equipment damage.
Ambient working temperature shall not exceed the rated range; high temperature will cause measurement drift and shorten service life.
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Horizontal Smart Digital Display Light Column Control Transmitter – For Level Sensors, Auto Pump/Valve Control
Shaanxi NuoYing Automation Instruments Co., Ltd.
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+86 182 1004 9286
+86 182 1004 9286
+86 182 1004 9286
Block V5, Ronghao Industrial Town, Gaoling District, Xi'an, Shaanxi, China.
