1、 Product Introduction

The DW301 rail type micro differential pressure transmitter adopts a high-precision MEMS silicon piezoresistive sensor as the core design scheme, Dewey patented circuit digital compensation technology, and embedded software algorithm. While maintaining the high accuracy and good linearity of the silicon piezoresistive sensor, it eliminates the problem of sensor zero drift and can accurately display small differential pressures, outputting 4-20mA standard signals. The guide rail installation structure and blue ABS engineering plastic shell are sturdy, compact in size, and have the characteristics of high strength, light weight, and easy installation. Suitable for applications such as negative pressure ambulances, negative pressure wards, clean rooms, electronic factories, air conditioning unit filter monitoring, dust collectors, building automation, etc.

2、 Technical parameters

● 精度 （F.S）：±0.8% F.S、±0.4% F.S，Accuracy includes linearity, hysteresis, and repeatability

Stability:<0.5% F.S/year

● Stable work: -17~71 ℃

● Temperature drift: Zero point: ± 0.03% F.S/year,Full range:± 0.03% F.S/year

Output signal: 4-20mA

Power supply: 24V DC

● Reverse wiring protection

3、 Product Features

Pressure interface:1/4 "brass tower joint(Used for)1/4 "outer diameter 1/8" inner diameter connecting pipe);1/8 "NPT internal thread

● Electrical connection:European standard plug-in terminal block,receive12~26V power supply

● Shell:NEMA Type 阻燃性 ABS（符合UL 94-5VA）

Weight: Approximately 70 grams

Measurement medium: clean, dry, and non corrosive gas

Installation method: Threaded fastening, 35mm DIN standard rail

● Option: 1/2 "conduit/mounting plate and face mask

4、 Product size

5、 Product specifications