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SF6 Gas Moisture Detector
 
Model: JH4000SF-1
     
SF6 gas moisture is not only a major item for gas quality acceptance but also a key index to evaluate installation, maintenance and operation of SF6 electrical equipments. In IEC60480-2004 Guidelines for the checking and treatment of sulfur hexafluoride (SF6) take from electrical equipment and specification for its re-use, moisture is listed as a detection item for SF6 fresh gas, equipment acceptance, preventive test and maintenance.
 
JHSF4000-1 quickly and accurately detects the moisture in SF6 filled equipment. With high performance capacitive sensor, temperature and pressure compensation, special gas path dry measure, best detecting procedure, it features high precision, good stability, good resistance to disturbance, quick response, wide linearity, convenient operation and little gas consumption etc. The gas flow for detection is 500ml/min, and the detection lasts for 3 – 5 minutes, applicable for on-site detection. As inspected by the National Institute of Metrology, it is of excellent performance.
 
Features

Fast detection, less gas consumption & environmentally friendly
 
---  Compact, light weight; 
---  Begin the next detection in a few seconds;
---  Flowrate 500ml/min, detection 3-5 minutes.
 
Complete function, leading technology
 
---  Big LCD display with user friendly operating interface.
---  World advanced high performance sensor plus optimized process of gas path ensure    excellent stability and accuracy.
---  Built-in temperature, pressure measurement and compensation improve the accuracy.
---  Built-in purge function with ambient air to reset value to zero quickly.
---  Built-in electronic flow meter displays gas flowrate while detecting.
---  Built-in micro printer, convenient for on-site data printing.
---  Test pressure 0.3~1.0Mpa. Gas inlet withstands the pressure of 1.0Mpa. Unique sensor and gas path dry technology.
---  Main parameter self-checking. 
---  Built-in diagnostic software analyses and judges the circuit breaker and other equipment according to the operation condition and test data of the equipment.
---  Powerful diagnostic and data management software with features of data storage, transmission, query, edition, analysis, graph generation and printing functions.
---  Display the moisture content in ppm and dew point in ℃.

Specifications
 
Item
Parameters
Resolution
-20 ℃~ -60℃, ≤0.5
Accuracy
-20 ℃~ -60 ℃,  ≤±1.0
Linearity
-60 ~ 0℃, linearity ≥99.9%
Repeatability
≤±0.5℃
Range
-100℃~ +20℃
Flowrate
500±50ml/min
Detection time
3-5 mins
Sampling system
Inner needle valve, filter, temperature, pressure measurement, electronic flow meter, display flow during detecting
Operation condition
Temperature: -25℃~ +50℃
Humidity: 10 ~ 95%RH
Altitude: ≤4000m
Communication
USB
Input pressure
0.15 ~ 1.0Mpa
Power supply
AC/DC; AC 110-240V, 50/60HZ; Built-in Lithium-ion battery works continuously over 30 hours; Battery volts display.
Display
Color finger touch screen, back lit
Dimension(W*D*H)
305*250*190mm
Weight
4.5kg
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