Soap film gas flow standard device

1、 Product Introduction

Soap film gas flow standard deviceSuitable for calibration, verification, and measurement of high-precision, low flow gas flow meters, as well as flow calibration and verification of gas samplers, gas chromatographs, and other instruments with corresponding ranges.adopt standardsJJG 5862006 "Verification Regulations for Soap Film Flowmeters"

2、 Main features

1. High measurement accuracy and good repeatability. Can be used to calibrate gas flow meters with level 1 accuracy
2. Adopting large screen display technology, the human-machine interface is friendly and easy to operate.
3. By using infrared sensing devices and microcomputer data processing technology, automatic measurement and calculation of data are achieved with fast detection speed and high measurement accuracy, effectively reducing errors caused by manual timing.
4. Capable of automatically measuring environmental temperature, atmospheric pressure, gas path medium temperature, and pressure values.
5Soap film gas flow standard deviceEquipped with timing output interface and RS232 output interface.

6. High measurement time accuracy, with a time resolution of 0.001 seconds.
7. Automatic display of measurement data function: Automatically display measurement time, operating condition flow rate (under standard device and tested instrument conditions), and standard condition flow rate (0 ℃, 101.325kPa). thirty-six
8. It has the function of correcting temperature, pressure, and volume values, and can correct temperature, pressure, and volume values.
9. Designed with electromagnetic compatibility technology, it has strong anti-interference ability.
10. Different specifications of soap film tubes can be combined and configured according to user needs to meet different range requirements.

3、 Technical indicators

1. Flow measurement range: default (10-2000) mL/min, different specifications of soap film tubes can be configured according to user needs,Soap film gas flow standard deviceExpand the range to (0.8-50000) mL/min.

2. Traffic accuracy: 0.5%
3. Repeatability: 0.25%
4. Flow resolution: 0.001 mL/min
5. Measurement time resolution: 0.001s
6. The atmospheric pressure sensor has a measurement range of (70-110) kPa, a resolution of 0.01 kPa, and an accuracy better than ± 300 Pa.
7. The measuring range of the pre pressure sensor is (0.000-2.500) kPa, with a resolution of 0.001 kPa and an accuracy better than ± 2.0% FS.
8. The temperature measurement range is (0.0-50) ℃, with a resolution of 0.01 ℃ and an accuracy better than ± 0.2 ℃.
9. Working conditions:
Working environment temperature: (0~40) ℃
Working power supply: AC (220 ± 22) V/50Hz