SF6 Intelligent Micro Water Measurement Instrument Has Automatic Conversion to Standard Value at 20°C
Functional Features;
Automatic zero calibration
● Advanced probe protection function
● Full curve tracking and correction
● Simple operation, easy to carry
● Unique large screen display
● Anti-pollution, anti-interference
● Unique large storage capacity
● Good repeatability, fast response
● *Curve display
● High sensitivity, good stability
● *Battery level display
● Automatic conversion to standard value at 20°C
Technical Parameters:
● Measurement range: -80°C to +20°C
● Accuracy: ≤1°C
● Resolution: 0.1°C or 1PPm
● Response time: For dew point from +20°C to -20°C, ≤1min;
-20°C to -40°C, ≤3min;
-40°C to -60°C, ≤8min;
● Power supply: 220V AC/DC dual use, one charge can last 8 hours
● Operating environment: Temperature: -20°C to +60°C
● Relative humidity: 0 to 95%
● Pressure: ≤1.0Mpa
● Volume and weight: Volume 300×220×130mm; Weight 4kg
Testing Method:
● First turn on the power and let the instrument perform automatic calibration for about five minutes;
● First connect one end of the intake pipe to the instrument and close the flow regulating valve; then connect the other end of the intake pipe to the equipment under test;
● Open the flow regulating valve and adjust to about 0.6-0.7L/min;
● The measurement will be completed automatically within a few minutes (the first sample takes about ten minutes, subsequent continuous testing usually only takes 2-5 minutes; if conversion is needed, refer to data conversion), press the storage key to save data, and repeatedly press the display key to view historical data;
● For continuous measurement, do not turn off the instrument power; repeat the above steps to greatly save measurement time;
● After use, be sure to turn off the power to protect the instrument battery;
Data Conversion
When the ambient temperature is higher than 20°C, if the instrument test value is greater than the standard value (the allowable moisture content of SF6 equipment at 20°C specified by national standards), it is necessary to convert the measured value to the data at 20°C. The method is as follows:
● When the measured gas temperature is stable, set the K value to +0.5 in the measurement parameter menu under the settings menu, and the value measured by the instrument will be the data at 20°C.
● When the measured gas temperature is very unstable, wait until the instrument reading stabilizes, then set the K value to +0.5; at this time, the display value will be the data at 20°C.
● When the ambient temperature is lower than 20°C or when the measured value is lower than the standard value at ambient temperatures higher than 20°C, conversion is generally not needed, and the K value should be 0.
