USI-1 Moisture Dew-point Meter Brief introduction:
This instrument is a digital the trace moisture meter . USI-1A -type and the USI-1B - improved . Instrument heart spiral ring electrolytic cell , the overall performance is more stable , more accurate measurement circuit automatic range switch , LED digital display , and features a rechargeable battery power for dry Technical indicators:
1. Measuring range:
volume ratio : 0 ~ 1000 PPmv
weight ratio : 0 ~ 120 ppmw ( SF6 ) of
Dew Point : -80 ~ -20 °C
absolute humidity : 0 ~ 0.75 g/m3
2. Reference error : better than ± 5%
3. The time constant : not more than 3min ( 63% )
4. Working conditions:
Power Supply : AC 22O ± 22V , 50 to 60Hz
DC ~~ 45V ( supply in dry selection )
Ambient temperature : 5 ~ 45 °C
Gas supply pressure: less than 0.1 MPa
Gas sample flow: measuring flow 100 ml/min
Bypass flow 1 l/min
5. The output signal: 0 ~ 10 mv and 4 ~ and mA
Brief introduction:
This instrument is a digital the trace moisture meter . USI-1A -type and the USI-1B - improved . Instrument heart spiral ring electrolytic cell , the overall performance is more stable , more accurate measurement circuit automatic range switch , LED digital display , and features a rechargeable battery power for dry
