1Overview

The Dewey DW100 micro differential pressure transmitter uses high-precision sensor chips and intelligent embedded software algorithms to eliminate the zero drift problem of the sensor and accurately display small differential pressures. The product's micro differential pressure sensor has high sensitivity, and the entire measurement process ensures high accuracy of ± 1% of the full range; Equipped with a custom range function, customers can adjust the required range on-site according to their needs, fully meeting the on-site requirements; It has the characteristics of fast response and ultra-low range.

2、 Application scenarios

Suitable for pharmaceutical companies, electronic clean rooms, dust-free laboratories, biosafety laboratories, hospital negative pressure isolation wards, ICU intensive care units, operating rooms, negative pressure ambulances, biosafety cabinets and other scenarios; Suitable for industries such as intelligent buildings, HVAC unit filter monitoring, VAV and fan control, machine room ventilation, fire exits, and furnace fan ventilation monitoring and control.

3、 Product Features

Eight advantages of DW100 micro differential pressure transmitter:

1) Minimum range 0~60Pa, accuracy ± 1% FS

2) Zero point can be automatically calibrated

3) Autonomous range setting for batch stocking

4) Built in 19 units to choose from

5) 6 types of screen displays to meet different on-site display needs

6) Wind pressure and speed can be freely switched, with built-in conversion formulas

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

8) Using digital filtering processing technology, the signal output has small fluctuations

4、 Main technical parameters

Power supply: 24VDC

Measurement accuracy: ± 1% FS

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

Display mode: LCD display with 5 digits

Working temperature: -30~80 ℃

Temperature drift: 0.03%/℃

Shell material: High quality ABS

Installation direction: Vertical installation

Measurement medium: dry air and non flammable gas

Protection level: IP65

Maximum Overvoltage: Range FS * 10

5、 External dimensions

6、 Electrical connection

7、 Maintenance precautions

The transmitter encountered abnormal situations during debugging and use. Please call for technical support. The self inspection method is as follows:

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

2) Connect the ammeter in series to the 24V power circuit and check if there is an output current and if the current value output is normal.

Please follow the relevant instrument safety operating procedures throughout the entire use of the product.

8、 Selection List

For example, product code DW100-1-A-1 represents model DW100, with a range of 0-60~1000Pa, an output of 4~20mA, and a lead length of 1M.

• Dewey DW100 Micro Differential Pressure Transmitter Selection Manual. pdf