CE

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SF6 gas

Gas monitoring system (three-in-one)

B169R305

Gas type
SF6 
Sensors
percentage in N2 
Sensors
Humidity 
Sensors
SO2 

The device is used to monitor and record the quality of the SF6 gas in a gas compartment. The following quality parameters depending on version can be determined with only one measurement (Information on which parameters determine your device can be found in the technical data):

  • SF6 volume percentage (%)
  • Moisture concentration (°C atmosphere, °C pressure, °F atmosphere, °F pressure, ppmv, ppmw)
  • SO2 (ppmv)

The user can select between three measurement modes:

  • Continuous measurement
  • Pulse measurement with automatic measurement data recording
  • Single measurement

 

For the measurement, the gas compartment is equipped with two partially separated couplings. The gas is taken from one of the two couplings, temporarily stored in the internal gas collecting bag of the gas monitoring system and then pumped back into the gas compartment through the second coupling after the measurement has been taken. Alternatively, the gas outlet coupling of the device can also be connected to an external vessel where the gas is collected after the measurement. The gas monitoring system is characterised by simple and user-friendly handling and easy maintenance. All gas sensors are easily accessible and can be replaced by the user according to the „plug & play“ principle. The device is operated via a 3.5“ colour touch screen with intuitive menu navigation.
Due to the use of self-closing couplings, SF6 cannot escape into the atmosphere either during measurement or when pumping back. If the SF6 gas is to be stored in the liquid form after measurement, we offer to equip the system with a more powerful compressor (B100R30, final pressure 50 bar pe) instead of the standard compressor (B100R20, final pressure 9 bar).

 

Standard version

  • 2 m long connecting hoses with DILO couplings DN8
  • Operating instructions

Advantages & functions

Sensor data


SensorVol.- %MoistureSO2
Measuring principleVelocity of soundElectronic dew point measurementElectrochemical Reaction
Measuring range0 - 99,9 vol-%

-60 to +20 °C

-76 to +68 °F

10 to 24000 ppm

1,23 to 2959 ppmw

0 - 20 ppmv

0 - 100 ppmv

0 - 500 ppmv

Measuring accuracy±0,5 vol.-%

±2 °C (at -40 °C)

±3 °C (at -40 °C)

± 2% measuring range
Measuring gas pressureAtmospheric pressureAtmospheric pressureAtmospheric pressure
Flow rate0,3 - 0,5 l/h16 - 17 l/h1 - 3l/h
Reaction time 2 min 5 min 20 s
Recommended calibration interval2 years2 years2 years (Lifetime)
Long term stability

2% Signal loss per month
  • Inlet pressure max. 50 bar pe
  • Storage of up to 500 measurement results with name, date and time assignment
  • Adjustable user languages: DE, EN, FR
  • Selectable pressure and moisture units
  • LAN connection and SD cards slot
  • Export of measurement data as CSV file

Technical data

Inlet pressure pe 1.5 - 50 bar
Weight 40 kg
Operating temperature -10 to +50 °C
Limit value vol.-% 0.0 - 99.9 Vol.-% adjustable
Operating voltage 85 - 264 V AC
Number of max. measured values to be stored 500 
Dimensions (W x H x D) 600 x 550 x 430 mm
Interface LAN
Ambient moisture 90 % relative moisture non condensing during operation
Frequency 50 - 60 Hz
Moisture flow rate 16 to 17 l/h
SO2 flow rate 1 to 3 l/h
Flow rate vol.-% 0.3 to 0.5 l/h
Installation / Stand-alone stand alone
Long-term stability < 2 % signal loss per month (SO2)
Measuring range of moisture sensor -60 to +20 °C
Measuring range of SO2 sensor 0 to 100 ppmv
Measuring range of vol.-% sensor 0 to 99.9 vol.-%
Measuring accuracy of moisture sensor ±3 °C at < -40 °C
Measuring accuracy of moisture sensor ±2 °C at > -40 °C
Measuring accuracy of SO2 sensor ±2 % of measuring range
Measuring accuracy of vol.-% sensor ±0.5 vol.-%
Measuring principle of moisture sensor Electronic dew point measurement (capacitive)
Measuring principle of SO2 sensor Electrochemical reaction
Measuring principle of vol.-% sensor Velocity of sound
Response time of moisture sensor < 5 min
Response time of SO2 sensor < 20 s
Response time of vol.-% sensor < 2 min

Operating manuals

Note

Options (please inquire separately): All devices with percentage measuring system are additionally available for SF6 concentrations in SF6/CF4 gas mixtures (measuring accuracy: ±2.0 vol. -%). Thus, it is possible to switch over between the SF6/N2 and SF6/CF4 measurement.