Micro Differential Pressure Sensor

I. Introduction

The differential pressure transmitter adopts high-precision, high-sensitivity gas differential pressure measuring elements, and converts the pressure

signal of the measured medium into a standard analog signal or digital signal through a stable, reliable and strong anti-interference ability amplifying

circuit. The packaging technology and perfect testing process ensure the excellent performance of the product, and it is widely used in the fields of

industrial automation such as petroleum, chemical industry, metallurgy, environmental protection, measurement, automation control engineering and production

process testing.

II. Parameters

Ø Test medium: gas compatible with the material       

Ø Measuring range: any interval within -0.1~0.1MPa

Ø Accuracy：0.1%FS、 0.25%FS、 0.5%FS

Ø Stability：±0.25%FS/年、 ±0.5%FS/year

Ø Output：4~20mA、0~10V、RS485

Ø Work voltage：12~36V DC（Default：24V±5%，Ripple＜1%）

Ø Power influence: less than 0.01%/V of output range

Ø Work temperature：-20~60℃    

Ø Compensate temperature：-20~60℃

Ø Temperature influence: ±1.55%FS/year, ±3.0%FS/year

Ø Overload：300%

Ø Load Resistance：4～20mA                     

(Among them: U is the power supply voltage, RD is the internal resistance of the cable)

III. Wire definition 

IV. Wire connection

Note 1: This parameter can compensate the deviation between the displayed value and the actual value. For example, the display value

 is 10.05, and the zero point correction is set to -0.05, then the display value after compensation is 10.00;

Note 2: This parameter can cut off the small signal displayed at the zero point. For example, 0 pressure is displayed as 0.05, and it

 can be reset to zero by increasing the setting value of the cutting range;

Note 3: This parameter can improve the stability of the display value, the larger the set value, the slower the display refresh；

V. Troubleshooting

VI. After sales service

Ø All orders of our company's products can enjoy one-year warranty；

Ø If the product fails during the warranty period, it is a quality problem detected by our company, and our company bears all maintenance costs；

Ø Failure to follow the specifications in this manual or disassembling the product without authorization has caused damage to the components or

damage to the pressure diaphragm, which is not covered by the product warranty。

Ø After the product fails, please contact our company. Please attach the following information to confirm the repair：

1. Product failure；

2. Product use site environment description；