1、 Overview

Duwei DW100 micro differential pressure transmitter adopts high-precision sensor chip and intelligent embedded software algorithm to eliminate the zero drift problem of sensor and accurately display micro differential pressure. The micro differential pressure sensor has high sensitivity, and the whole measurement process can ensure ± 1% of full scale and high precision; it has the function of custom range, and the customer can adjust the required range according to the demand on site to fully meet the site requirements; it has the characteristics of rapid response and ultra-low range.

2、 Application scenarios

It is suitable for pharmaceutical enterprises, electronic clean workshop, dust-free laboratory, biosafety laboratory, hospital negative pressure isolation ward, ICU intensive care unit, operating room, negative pressure ambulance, biological safety cabinet and other scenes; it is also suitable for intelligent buildings, HVAC filter monitoring, VAV and fan control, room ventilation, fire passage, furnace fan ventilation monitoring and control, etc 。

3、 Product features

Eight advantages of DW100 micro differential pressure transmitter:

1) The minimum range is 0 ~ 60Pa and the accuracy is ± 1% FS

2) The zero point can be calibrated automatically

3) The range can be set independently and the goods can be prepared in batches

4) Built in 19 units

5) 6 kinds of screen display, to meet the needs of different field display

6) Wind pressure and wind speed can be arbitrarily switched, built-in conversion formula

7) The instrument adopts anti-interference circuit design, and the output signal is stable

8) Using digital filter processing technology, the signal output fluctuation is small

4、 Main technical parameters

Power supply: 24 VDC

Measurement accuracy: ± 1% FS

Output signal: 4 ~ 20mA, voltage 0 ~ 10V, digital RS485 (Modbus)

Display mode: LCD 5 bits

Working temperature: - 30 ~ 80 ℃

Warm bleaching: 0.03% / ℃

Shell material: high quality ABS

Installation direction: vertical installation

Measuring medium: dry air and nonflammable gas

Protection grade: IP65

Maximum overpressure: range FS * 10

5、 Dimensions

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6、 Electrical connection

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7、 Maintenance precautions

Please call 400-161-8008 for technical support in case of abnormal conditions during debugging and use of the transmitter. The self inspection methods are as follows:

1) Check whether the power supply of transmitter is normal.

2) Connect the ammeter into the 24 V power supply circuit to check whether there is output current and whether the current value is normal.

In the whole process of using the product, please follow the relevant instrument safety operation regulations.

8、 Selection list

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For example: product code dw100-1-a-1, indicating model DW100, measuring range 0 ~ 60 ~ 1000Pa, output 4 ~ 20mA, lead length 1m.

• 杜威DW100微差压变送器选型说明书.pdf