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Product Overview

CHR3700 is high-precision, integration, and digital pressure & temperature measuring instrument, and the core elements use the world’s leading VTI 3D-MEMS technology. CHR has proprietary intellectual property rights.

Product features

Advanced VTI 3D-MEMS technology;

High accuracy, hyper stable;

Pressure & temperature measurement contemporaneously, digital signal output;

Standard digital output interface, provide specialized software;

Four measuring modes plus power down mode;

Low power consumption, anti-interference, small size and easy installation;

Suitable for precision measurement of vacuum, micro pressure;

Performance parameters

Measuring medium: a variety of liquids, gases and steam compatible with 316L stainless steel

Pressure measurement:

            Range: -95kPa~+120kPa; -95kPa~+800kPa; -95kPa~+2500kPa

            Proof pressure: 50×FS

            Resolution: 1.5Pa

            Accuracy: 0.05% (min.), ±100Pa (max.)

            Long-term stability: ±100Pa/Year

Temperature measurement:

            Range: -20~70℃

            Resolution: 0.2℃

            Accuracy: ±1℃

Output signal: RS485

Power supply: 8~36VDC

Pressure port: 1/4 G standard external thread

Protection level: IP67

Electric connection

Remarks:

1 High-resolution, high-precision, ultra-low power to trigger the measurement mode need to be connected to the pin:

①TRIG ②DRDY ③DVDD ④DVSS ⑤PD ⑥AVSS ⑦AVDD ⑧SDA ⑨SCL

2 Simple measurement mode need to connect the pin:

①DVDD ②DVSS ③SCL ④SDA ⑤DRDY

Supporting software

The output mode can be selected by our supporting software which can be downloading via our website. For other application software, users need to self-development, or contact our customer service to jointly develop.