1. Self calibration: The sensor probe can automatically calibrate the zero point, eliminate system errors caused by zero point and drift, and ensure the accuracy of each measurement.

2. Easy to operate, with a large touch LCD screen and WYSIWYG simple operation.

3. Fast gas saving: After starting up and entering the measurement state, the purity measurement time is about 2 minutes each time.

4. Self locking connector: using original imported self-locking connectors, safe and reliable, without air leakage.

5. Data storage: Designed with a large capacity, it can store up to 1000 sets of test data.

6. Clear display: The 4.3-inch ultra large touch LCD screen directly displays the current purity, gas flow rate, ambient temperature, time, and date.

7. Built in USB interface, can be plugged into a USB flash drive, and all internal data of the instrument can be uploaded to the computer for easy data analysis and processing.  

8. External micro printer, capable of printing test data or historical data at any time.

9. Equipped with a large capacity rechargeable lithium battery, it can work continuously for more than 10 hours on a single charge.

Technical Parameter

1. Purity

(1) Measurement range: 90% to 99.99%

(2) Measurement accuracy ± 0.3%

(3) Response time<2 minutes

2. Inlet pressure: 0-100 Kpa

3. Flow rate: 0.5-0.6 L/min

4. Environmental temperature: -20 ℃ to+80 ℃

5. Environmental humidity: 0-90% RH