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Zhonghe ZH1251A Speed Transmitter with No Relay Alarm Design Modular High Accuracy Rotational Speed Sensor

Name: Zhonghe ZH1251A Speed Transmitter with No Relay Alarm Design Modular High Accuracy Rotational Speed Sensor
Brand: OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED
SKU: ZH1251A
Price: 1.00 USD
Availability: InStock

Brand Name:	Zhonghe
Model Number:	ZH1251A
MOQ:	1
Price:	Negotiations

Detail Information

Product Description

Detail Information

Place of Origin:

China

Packaging Details:

New origina box

Highlight:

No Relay Alarm Design Speed Transmitter

Modular Design Speed Transmitter

High Accuracy Rotational Speed Sensor

Product Description

Zhonghe ZH1251A Pure Transmission Output Speed Sensor

No Relay Alarm Design for Industrial Speed Monitoring Applications

Product Overview

The ZH1251A series speed transmitter, when paired with magnetoresistive or magnetic speed sensors, provides precise rotational speed measurement for rotating machinery. This transmitter delivers current output proportional to rotational speed and interfaces seamlessly with DCS, PLC systems, and paperless recorders.

Key Features

Modular design for easy installation and maintenance
High accuracy with stable performance
Strong anti-interference capability
High reliability in industrial environments
Wide application across power, machinery, chemical, and metallurgical industries
Ideal for monitoring system design and technical renovation projects

Technical Specifications

Parameter	Specification
Model	ZH1251A
Working Power Supply	DC+24V
Power Consumption	< 5W
Input Signal	SZCB series reluctance speed sensor, SMCB-01 magnetic speed sensor, or DWQZ eddy current sensor
Measurement Range	0~15000 rpm (customizable per ordering instructions)
Number of Teeth	1 to 99 (customizable per ordering instructions)
Current Output	(4~20) mA or (0~10) mA Accuracy: ±1.0% of full scale Maximum Load: 500Ω
Alarm System	Maximum 2 points Arbitrarily set within full scale LED alarm indicator Relay switch output with normally open/closed contacts Capacity: 28VDC/2A, 250VAC/1A
Operating Environment	Free from corrosive substances and strong magnetic fields Operating Temperature: 0~50℃ Storage Temperature: -40~60℃ Relative Humidity: 20~90% (non-condensing)
External Dimensions	100113.545mm \| 100113.567.5mm \| 100113.522.5mm

Applications

Monitoring and protection of shaft speed for rotating machinery including steam turbines, compressors, blowers, and other industrial equipment requiring precise speed measurement and control.

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3 Phase Electric Motors

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Transformer Protection Relay

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Low Voltage Protection Devices

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IGBT Power Module

products details

Zhonghe ZH1251A Speed Transmitter with No Relay Alarm Design Modular High Accuracy Rotational Speed Sensor

Zhonghe ZH1251A Speed Transmitter with No Relay Alarm Design Modular High Accuracy Rotational Speed Sensor

No Relay Alarm Design Speed Transmitter

Modular Design Speed Transmitter

High Accuracy Rotational Speed Sensor