1.1 Brief Introduction
Automatic Sonic Nozzle Gas Meter Test Bench is an equipment to test domestic gas meter, the flow range 0.016m3/h~6m3/h, the method of standard device is sonic nozzle.

Feature:
1. The device can test 6PCS, 8PCS or 12PCS gas meters simultaneously, adopting series-connection compare method. The device is an ideal testing equipment for gas meter factory and testing institute.
2. The standard meter is sonic nozzle, none movable orifice union, which ensures stability and reliability of the test bench. The test bench can test flow points Qmax. 0.2Qmax. And Qmin of gas meter G1.6, G2.5 and G4. Each sonic nozzle is tested by national qualified institute.
3. Test bench adopts single chip microcomputer, high accurate A/D converter and accurate sensor technology, it can calculate the testing result with the tested environment temperature, pressure, this ensures stability and accuracy of test bench.
4. The test bench adopts minus-pressure method, adopting none-oil dry vacuum pump, and ensure the air passing nozzles at critical state.
5. All the testing procedures is controlled by PC and run automatically, the testing results can be saved, printed.
6. Test bench frame is made of industrial aluminum, with prefect outlook and strong structure.