(1) Maximum allowable error of average flow rate: ≤±5%. (2) 24h zero point drift ≤ ±1% FS; one week zero point drift ≤ ±2% FS. (3) 24h range drift ≤±1%FS; one week range drift ≤±2%FS. (4) System response time ≤5s. (5) Zero flow reading ≤ 0.01m/s. (6) The insulation resistance between the power terminal and the ground terminal, the output terminal and the ground terminal of the flow meter is greater than 20MΩ. (7) The power terminal and ground terminal, output terminal and ground terminal of the flow meter can withstand a voltage with a frequency of 50Hz and an effective AC value of 1500V for 1 minute without arcing or breakdown. Confirmation of technical indicators is carried out through test methods to ensure that factory products can meet the requirements of technical indicators.
T/JSGT 002-2020 history
2020T/JSGT 002-2020 Exhaust gas ultrasonic velocity and flow meters