SF6 Measuring Analyzing Instrument

This SF6 moisture analyzer is an up-to-date instrument, measuring moisture content in hydrogen, nitrogen, and any other inert gases and non-corrosive gases, especially SF6 gas, in high precision, used in distribution station SF6 switches, hydrogen station and hydrogen-cooling generators, also used in petrochemical industry, metallurgy industry, environmental protection industry, scientific research institutes and other departments.

It adopts high precision humidity sensor, high accuracy, good repeatability, quick measuring speed, small shifting. It is an ideal choice for those industry environments which is low dew point, but need controlling dry point.

Main features

-- Aluminum carrying case

-- Automatically converted to standard value under 20°C

-- Zero point automatic calibration

-- Whole course curve tracking rectifying

-- Big LCD displaying

-- Super high saving memory

-- Curve displaying and electricity displaying

-- Advanced probe protection function

-- Simple operation, portable

-- Anti-pollution, anti-interference

-- High sensitivity, good stability

-- Equipped with couplings suitable for any kind of SF6 switches

Main technical data

-- Measuring range: -80°C ~ 20°C (dew point)

-- Precision: ± 0.5°C

-- Resolution ratio: 0.01°C or 0.1ppm

-- Response time: ≤ 5 minutes when dew point reaching -35°C~-60°C

-- Displaying: dew point, PPMV, temperature, pressure, flux

-- Power: AC/DC, lithium ion battery with over-charge protection, lasting for 8 hours

-- Output interface: RS232 or 4~20mA current (dew point output)

-- Size: 360 x 260 x 130mm

-- Weight: 3.5kg

     For successful SF6 Gas Recycling and Reuse it is essential to know three impurity values. These are:

·      Purity of SF6 Gas

·      Moisture Content

·     Concentration of SF6 Decomposition Products

This multi-function analyzer can analyze those three values, therefore providing a very convenient way to determine the reusability of SF6 gas and on-site validation of recycling efforts.

This analyzing meter can finish three measurements one time so saving gas used and reducing air pollution.

This meter adopts world famous sensors from overseas. Sensor for moisture is from Finland; Sensor for purity is from Germany; Sensor for decomposition products is from UK special for SF6 gas.

Main features

-- Big size sunlight readable LCD, graphic menu

-- With data communication interface

-- Electron flux and electricity displaying

-- Measured data automatically saved and printed

-- Instrument self-diagnosing function

-- AC/DC power supply, built-in rechargeable Lithium ion battery

-- Compact, light and portable, low maintenance

-- With data management system software

Main technical data

1) SF6 moisture:

-- Measuring range: -80°C ~ 20°C (dew point)

-- Precision: ± 0.5°C

-- Resolution ratio: 0.01°C or 0.1ppm

-- Response time at 63% (90%)

  20→-20°C Td 5s (45s)

  -20→-60°C Td 10s (240s)

-- Repeatability: /-0.4°C

-- SF6 gas flux adjustment at 0.5~0.9L/min

-- Probe protection: stainless steel sintering filter

2) SF6 purity

 -- Measuring range: 0~100%

 -- Precision and repeatability: /-0.4%, not related to flux

 -- Response time: 15s at 90%

3) SF6 decomposition by-products

 -- H₂S: 1~200ppm

 -- SO₂: 1~100ppm

 -- HF: 0~10ppm (optional)

 -- Precision: /-1ppm

4) Other main parameters

 -- Built-in rechargeable lithium ion battery, 3500mAH, with over-charge protection

 -- Working pressure: 0~1.0MPa

 -- Sample gas flux: no relation

 -- Equipped with electron flux meter

 -- Output interface: USB1.1

 -- Dimension: 285mm (W) x 165mm (D) x 320mm (H)

 -- Weight: about 3.5kg

This instrument is the most up-to-date meter special for analyzing volume percentage in SF6 gas tank or SF6 switches.

Conventional thermal conductivity method for volume percentage detection has big problem of error caused by temperature drift. However, our new analyzer doesn’t affected by ambient temperature, higher precision, better stability!

This instrument adopts most advanced micro thermal conductive sensor with temperature compensation in the world and so can check percentage very quickly and preciously. Life can be 10 years!

Main features

--Long life micro thermal conductive sensor with temperature compensation, not affected by ambient temperature

-- Built-in pressure maintaining valve and electronic mass flowmeter

-- LCD graphic displaying

-- Dual DC & AC power supply, chargeable lithium ion battery

-- Quick test speed

-- Portable instrument

Main technical data

-- Measuring range: 0~100%

-- Measuring precision: ±0.1%

-- Resolution: 0.1%

-- Response time: about 2 minutes

-- Sampling system: built-in pressure maintaining valve, filter and electronic mass flowmeter

-- Sampling flux: 500~600mL/min

-- Continuous working duration: 8 hours (by lithium ion battery)

-- Ambient temperature: -10℃~ 45℃

-- Weight: about 3kg

-- Dimension: 360 x 260 x 130m

This instrument is special for detecting leakage of SF6 gas, most suitable for power supplying company, installation & overhaul company, electric test institute and manufacturers of SF6 high voltage switches.

Main features

--Very small size, light and portable, handheld serpentine probe, flexible connection wire

-- Super-high sensitivity, corresponding to very slight halogen gas, can detect gas minimum 3g annual leakage!

-- Big measuring range: may detect SF6 leakage within the leakage rate of SF6 switches, two grades can be shifted.

-- High accuracy: advanced method of calibration, high accuracy standard line

-- Digital LCD displaying, acoustic & optical alarming when there is SF6

-- Quick reaction speed, short resuming duration

-- Long site servicing time: chargeable battery, one time charge can work more than 5 hours

Main technical data

--Min. detecting value: 1 (x 10^-6 volume)

-- Detecting range: 1~1000 (x 10^-6 volume)

-- Corresponding time: < 1s

-- Resuming time: < 10s

-- Displaying value error: ≤±3%

-- Repeatability error: ≤1%

-- Max. sensitivity when sensor in static: 3g per year

-- Displaying method: digital displaying and acoustic & optical signals

-- Probe detecting length: handheld, no limit

-- Continuous working duration: 5 hours

-- Power supply: chargeable battery and AC

-- Ambient temperature: -5℃~ 45℃, RH≤85%

-- Weight: about 2kg

-- Dimension: 400 x 230 x 90mm