Name: BWD200-RS Mining Explosion-proof Temperature Transmitter
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BWD200-RS Mining Explosion-proof Temperature Transmitter

Mining Temperature Instruments

Product Overview

The instrument uses a Class A platinum resistance temperature sensor as the temperature sensing element and is equipped with a high-precision conversion circuit, a 4-digit LED display, and an RS485 output signal.

The instrument integrates local indication and digital signal output into a compact unit. It is available in various measuring ranges, process connection types, and material options, making it widely suitable for temperature measurement and control in underground and surface coal mining equipment, significantly improving the automation level of mining systems.

The instrument adopts a stainless-steel flameproof enclosure designed and manufactured in strict accordance with GB/T 3836 standards. The explosion-proof marking is Ex db I Mb.

Key Technical Specifications

Item	Technical Parameters
Accuracy	Transmitter output: Class 0.5
Power Supply	24 VDC (standard); operating voltage range: （9～36）VDC
Signal Output	RS485 • Quantity: 1 channel • Transmission mode: master-slave, half-duplex • Communication baud rate: 4800–115200 bps.
Explosion-proof Marking	Ex db I Mb
Temperature Compensation	（-20～70）℃
Protection Rating	IP54 (standard type), IP65 (special type), compliant with GB/T 4208
Vibration Resistance	＜20 m/s²
Explosion-proof Structural Features	The housing is made of stainless steel with a flameproof enclosure. The cable entry device complies with the Ex cable entry requirements of GB/T 3836.1-2021. Recommended cable outer diameter: Φ8～Φ12 mm.

Model and Specifications

Model	Maximum Measuring Range (°C)	Transmitter Output	Accuracy Class	Maximum Working Temperature
BWD200-RS	-20～200	RS485	Class 0.5	250℃

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