SF6 Intelligent Micro Water Measurement Instrument Automatically Converts to Standard Value at 20℃
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
● Automatically converts to standard value at 20℃
Technical Parameters:
● Measurement range: -80℃～+20℃
● Accuracy: ≤1℃
● Resolution: 0.1℃ or 1PPm
● Response time: when dew point is +20℃～-20℃, ≤1min;
-20℃～-40℃, ≤3min;
-40℃～-60℃, ≤8min;
● Power supply: 220V AC/DC dual use, one charge can last 8 hours
● Operating environment: Temperature: -20℃ ～+60℃
● Relative humidity: 0 ～ 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 device under test;
● Open the flow regulating valve and adjust to about 0.6～0.7L/min;
● The measurement is completed automatically within a few minutes (the first sample takes about ten minutes, subsequent continuous detection usually only takes 2-5 minutes, if conversion is needed please refer to data conversion), press the storage key to save data, repeatedly press the display key to view historical data;
● For continuous measurement, do not turn off the instrument power, just repeat the above steps, which can 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℃, if the instrument test value is greater than the standard value (the allowable moisture content of SF6 equipment at 20℃ specified by national standards), it is necessary to convert the measured value to the data at 20℃. 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, then the measured value of the instrument is the data at 20℃.
● When the measured gas temperature is very unstable, wait until the measured value of the instrument is stable, then set the K value to +0.5, at this time the displayed value of the instrument is the data at 20℃.
● When the ambient temperature is lower than 20℃ or the measured value is lower than the standard value when the ambient temperature is higher than 20℃, conversion is generally not needed, and the K value should be 0.
