Vertical Smart Digital Display Light Column Control Transmitter – For Level Sensors, Auto Pump/Valve Control
Empowering Global Industry with Advanced Precision Technology
Product Advantages
Vertical panel mounting structure saves cabinet horizontal space, neatly arranges multiple instruments side by side on control panels.
Dual display of digital value + light column bar graph, precise reading and intuitive trend observation available simultaneously.
Universal multi-signal compatible input, supports thermal resistance, thermocouple, standard current and voltage signals without extra converters.
Multi-channel relay output with adjustable limit values and hysteresis, realizes automatic interlock control of pumps, valves and other actuators.
Isolated retransmission output ensures stable long-distance signal transmission, seamlessly connected with PLC and DCS systems.
Optional RS485 Modbus-RTU communication supports remote parameter setup and centralized networking monitoring.
Built-in sensor excitation power supply directly powers two-wire transmitters, simplifying field wiring construction.
Built-in digital drift auto-correction module, low maintenance frequency and stable long-term operation.
Full internal electrical isolation design delivers strong anti-interference performance, adaptable to harsh industrial workshop environments.
Front panel reaches IP65 protection grade, dustproof and waterproof for on-site cabinet installation.
Introduction
Technical Parameters
Design features
Product Features and Model Parameters
Vertical embedded panel installation design, compact layout, convenient for dense arrangement of multiple instruments inside control cabinets.
Dual display mode: high-precision 4-digit LED digital reading + segmented LED light column display, both exact numerical value and full-scale percentage trend can be checked at a glance.
Universal programmable signal input, compatible with thermocouple, RTD, 4–20mA, 1–5V, mV small signal and resistance signals, signal type switched via panel keys without additional adapters.
Multiple relay alarm outputs optional, upper/lower limit trigger values and return hysteresis adjustable, supporting interlock control of pumps, valves and other field actuators.
Isolated analog retransmission output (4–20mA / 1–5V), high conversion accuracy, long-distance signal transmission, perfectly docking PLC and DCS.
Optional isolated RS485 Modbus-RTU communication interface, realizing remote data viewing, parameter modification and centralized networking monitoring.
Integrated DC12V/24V sensor excitation power supply, capable of directly supplying power to two-wire transmitters, simplifying field wiring.
Automatic digital calibration for zero and gain drift, low later maintenance workload and stable long-term measurement performance.
Complete isolation between power supply, input and output circuits, outstanding EMC anti-interference ability, applicable to complex industrial working conditions.
Front panel IP65 protection, dustproof and splash-proof, suitable for on-site industrial cabinet installation.
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
Simultaneously show accurate measured value via 4-digit LED digital tube and full-scale proportion with segmented light column for local on-site observation.
Accept multiple types of sensor signals including thermocouple, thermal resistance, standard current and voltage signals, switch signal types through panel buttons directly.
Multi-channel relay limit output with adjustable set value and hysteresis value, realizing automatic start-stop and interlock control of pumps, valves and other executing equipment.
Isolated 4–20mA/1–5V analog retransmission output, uploading process signals to PLC, DCS and secondary display instruments.
Optional isolated RS485 Modbus-RTU communication, supporting remote data reading, parameter modification and centralized system networking monitoring.
Built-in DC12V/24V excitation power supply to power two-wire transmitters independently, simplifying field wiring layout.
Digital automatic zero and gain drift compensation, long-term stable measurement without frequent on-site calibration.
Application Scenarios
Liquid level real-time display and pump interlock control for water supply pumping stations and sewage treatment workshops.
Real-time monitoring and valve adjustment of tank pressure, material level and temperature in chemical storage tank areas and reaction kettles.
Temperature, pressure and flow parameter local display and signal transmission for thermal power plants and metallurgical smelting production lines.
On-site measurement point data display and automatic control for energy management systems and industrial pipe networks.
Application Scope
Water treatment industry: water plants, sewage plants, lift pump stations, circulating water stations.
Chemical industry: chemical reactors, storage tanks, process pipeline parameter monitoring.
Power & energy industry: thermal power plants, substation auxiliary measurement points, distributed energy stations.
Metallurgy & machinery industry: smelting furnaces, rolling lines, automated workshop pipe network monitoring.
All industrial automation sites requiring vertical panel installation, local display, limit control and remote signal transmission.
Notes
Confirm input signal type, relay quantity, retransmission signal and communication options before placing orders to avoid model mismatch.
Separate strong-current relay terminals, power terminals and weak-current signal terminals during wiring to avoid signal interference.
This product adopts vertical panel embedded installation; keep the sealing gasket intact during installation to guarantee front panel IP65 dustproof and waterproof performance.
Special compensation wires must be used for thermocouple wiring, and cold junction compensation parameters shall be set correctly to ensure measurement precision.
Do not install the instrument in environments with explosive gas, strong corrosive gas or long-term dew condensation.
The load resistance of 4–20mA retransmission output shall not exceed the maximum rated load resistance.
Cut off the power supply before modifying internal parameters or re-wiring terminals to prevent short circuit and equipment damage.
The actual operating ambient temperature shall not exceed the specified range; excessive temperature will cause measurement drift and shorten service life.
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Vertical Smart Digital Display Light Column Control Transmitter – For Level Sensors, Auto Pump/Valve Control
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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.