TX 20

Product Description

TX-20 Single Input Dual Output Signal Isolator is a compact signal conditioning instrument designed for reliable signal conversion and electrical isolation in industrial applications. It accepts a single dedicated current or voltage input and provides two isolated outputs in the form of 4–20 mA or voltage signals. Powered by a 24 V DC supply, the unit ensures stable operation with high isolation of 1.5 kV between input, output, and power supply. With accuracy better than ±0.25% of full scale and fast response time, it delivers precise and dependable signal transmission. The DIN rail–mounted, space-saving design allows easy installation and low maintenance. The TX-20 is an ideal solution where a single process signal must be safely distributed to multiple control systems.

Product Parameters

Configure the transmitter and electronics based on application, environment, and compliance requirements.

Performance Characteristics

No. of Input	01 No.
No. of Output	02 Nos.
Type of Input	Dedicated
	1) Current (4-20 mA)
	2) Voltage (0-5 V / 1-5 V)
Type of Output	Dedicated
Type of Output	1) Isolated mA (4-20 mA)
	2) Isolated Volt (0-5 V DC)
Accuracy	+/- 0.25% F. S.
Isolation	1.5 KV between Input, Output & Power Supply
Power Supply	24 V DC
Power Consumption	< 4 VA
Response Time	< 50 mSec
Temperature Coefficient	+/- 0.01% per °C
Enclosure	ABS Plastic
Dimensions	75 mm (H) x 22 mm (W) x 110 mm (D)
Mounting	Din Rail Type
Weight	250 gms
Operating Conditions	Temperature -20 to 70 °C / Humidity 5 to 95% non condensing

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Applications

Electronet instruments are widely deployed across multiple industries and utilities for reliable monitoring and control of critical process parameters.

Industry	Key Applications (TX 20)
Water & Wastewater Treatment	Splitting a single 4–20 mA field transmitter signal (flow, level, or pressure) simultaneously to a local pump control panel and a remote central SCADA telemetry RTU with complete galvanic isolation.
Automation & Manufacturing	Dual-output re-transmission of sensor signals to feed both a local machine operator HMI/indicator and a plant-wide MES or line PLC without causing ground loop interference.
Oil & Gas / Petrochemical	Splitting critical pressure, level, or temperature transmitter signals between a safety shutdown system (ESD/SIS) and the regular process DCS, ensuring loop faults on one side never affect the other.
Nuclear Power & Power Generation	Duplicating boiler steam drum level, turbine speed, or bearing vibration 4–20 mA signals to feed independent digital data loggers and centralized turbine control consoles simultaneously.
Textile Industry	Splitting dyeing vessel temperature or stenter heat signals to drive a local operator panel indicator and send a duplicate isolated signal to the central boiler/plant control room.
Pulp & Paper Industry	Distributing stock chest level or drying cylinder steam pressure signals concurrently to the local machine operator console and the main DCS mill monitoring system.
OEM Equipment Manufacturers	Providing dual isolated outputs on packaged skid systems (boilers, air compressors, chillers) to drive skid-mounted displays while supplying isolated customer tie-in analog signals.
Sugar & Distillery Industry	Routing evaporator vacuum or boiler steam pressure signals simultaneously to the boiling house operator console and the central power plant co-generation DCS.