1. Measurement deviation: ≤ ± 0.5%F@S± 1. 2. Sampling cycle: 0.5S. 3. Control cycle: Relay output 2~120S, other is 2S... 4. Relay output contact capacity: AC250V/7A (resistance load) or AC250V/0.3A (perceptual load). 5. Driving controllable pulse output: ≥ 3V scope, ≥ 40us width's over zero or trigger contact pulse. 6. Driving solid relay signal output: Driving electric current≥ 15mA, voltage≥ 9V... 7. Continuous PID: 0~10mA (load 500± 200Ω ), 4~20mA (load 250± 100Ω ), or 0~5V (load≥ 100kΩ ), 1~5V (load≥ 100kΩ ). 8. Power supply: AC90V~242V, 50/60Hz. 9. Working condition: Temperature 0~50.0, relative humidity≤ 85%RH, without corrode and strong electric radiation. 10. Exterior and hole size(mm): 160× 80× 120 152× 76;