·Innovation Award
SF6 Electrical Equipment Gas Detector
SF6 Density Meter Calibrating Device
SF6 Leak Detector
Two Cases of SF6 CT Faults Detection Report
500KV Tank Lighting Arrestor Fault Detected by Our Compnay in Huanghua Power Plant
Inspection Report on 330KV GIS Fault in Weinan Substation in Shanxi Province
SF6 Density Meter Tester
Model: JHMD-1
JHMD-1 is a smart tester. By using high accuracy core units, pressure sensor, A/D, D/A transducer, 32 bit ARM MCU and TI company’s high speed signal chip, it can automatically calibrate the density relay, measure pressure at signal activity temperature, convert pressure from any temperature to 20℃ standard pressure, print test data and save for review. It identifies the fault during the test. The whole procedure is under automatically operation, JHMD-1 is a high accurate, high stable, reliable tester.
---   Portable design, easy for carrying and on site test.
---   Use high performance 32 ARM MCU, high accuracy core units. The tester has the high precision, excellent repeatability and stability.
---   LCD screen displays all data and condition, rotary mouse, easy operation design.
---   Automatically convert pressure from any temperature to 20℃ standard pressure, complete the compensation between pressure and temperature. Display pressure under measurement temperature, at 20℃ temperature and ambient temperature.
---   Automatically measurement procedure, avoid manually gas adjustment.
---   Print measurement result in list format, analyze the data intelligently.
---   Save 50 measurement data, power-cut data record function, convenient for reviewing and printing record data at any time.
---   No need thermostatic room, calibrate the SF6 density relay, pressure meter at any effective temperature.
---   Variety of adapter to meet the most of switchgear density relay and convenient to connect, no need to disassemble the relay.
---  Low consumption of SF6 gas. Flow rate 500ml/min
---  Fast test: test time 5 minutes.
---  On line revise the system clock and pressure.
---  Two temperature measurement mode: automatically measure or infrared measure the ambient temperature, to ensure the accuracy of test.
---  Gas cylinder pressure reducing valve withstands the pressure of 15Mpa, low pressure output adjustable. Suitable for Nitrogen test gas calibration.
---  Test of single alarm signal and double close signal at the same time is available.
0.2 grade
Pressure resolution
Pressure range
Ambient temperature resolution
Ambient temperature range
High speed, micro type
Printing format
Test type
Single alarm, single close, single alarm & single close, single alarm & double close
320×240 graphic dot matrix, LCD
Rotary mouse
50 tests record
Tester case: 365×300×220(mm3);Accessory case: 400×370×200(mm3)
SF6 density display
pressure under measurement temperature, pressure at 20℃
sate grid bid 
power equipment 
equipment diagnostic  
high voltage appraturs 
Add:Floor 3,Gaoxing Electric Power Building,Cangshan Science & Technology Zone,Fuzhou,Fujian,China
P.C:350026  Tel:0591-83302478  83537715  Fax:0591-83302648