WIKA data sheet SP 62.10 ? 04/2013 Page 1 of 3
WIKA data sheet SP 62.10
SF6 gas excellence
Analysis instrument for determining the concentration
of SF6 gas
Model GA50
Analysis instrument, model GA50
Applications
Percentage measurement of the concentration of SF6 gas in
SF6 gas-filled equipment
Special features
■■ Fast test results, measurement duration approx. 2 minutes
■■ Compact and low weight
■■ Maintenance-free
■■ Operation via touchscreen
■■ Long battery life
Description
The model GA50 analysis instrument is a cost-effective
solution for determining the concentration of SF6 gas in SF6
gas-filled equipment. This analysis allows for the indirect
determination of contaminations in SF6 gas such as air or
CF4.
The GA50 is calibrated for the measurement of pure SF6 gas
or SF6/N2 mixtures. The instrument can also be calibrated for
SF6/CF4 mixtures on request.
Fast and safe
The GA50 was developed for the fast and accurate measurement
of SF6 gas. With its automatic pressure and flow
control, the measurement is reproducible and erroneous
measurement is eliminated.
The determined concentration is expressed as a percentage
and can be read directly from the touchscreen during the
measurement.
SF6-Purity-Meter
Environmentally friendly
The test gas should be intermediay stored at the outlet of
the GA50 with a gas recovery bag so that the environmentally
hazardous SF6 gas does not escape into the surrounding
atmosphere.
Once the recovery bag is full, the SF6 gas can be pumped
back into a gas cylinder using a model GTU-10 gas transfer
unit and subsequently recycled or, depending on the gas
quality, be reused directly.
Data sheets showing similar products and accessories:
Portable SF6 gas transfer unit model GTU-10; see data sheet SP 63.07
Gas recovery bag; model GA45; see data sheet SP 62.08
Page 2 of 3 WIKA data sheet SP 62.10 ? 04/2013
Specifications
Measuring principle
Sound velocity
Measuring range
0 ... 100 % SF6 gas
Accuracy
±0.5 %
Resolution
0.1 %
Flow rate
3 litres/hour
Gas consumption
approx. 0.1 litres per measurement （under atmospheric
pressure）
Inlet pressure
0.5 ... 35 bar （gaseous）
With automatic flow control
Control panels
Input via touchscreen
The ‘Purge’ button conducts the contents of the 4-metre-long
measuring tube directly to the outlet. This should be carried
out before each measurement.
Display
Touchscreen （240 x 128 pixel）
Voltage supply
Lithium-ion accumulator for approx. 24 h operating time
Charger: AC 100 ... 265 V, 50/60 Hz
Permissible temperatures
Storage: -10 ... +60 °C
Operation: 0 ... +50 °C
Permissible humidity
≤ 90 % r. h. （non-condensing）
Dimensions
W x H x D: 280 x 140 x 385 mm
Weight
approx. 7 kg
Calibration
Recommended every 2 years
Standard with SF6/N2
SF6/CF4 on request
WIKA data sheet SP 62.10 ? 04/2013 Page 3 of 3
04/2013 GB
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
Ordering information
Model / Measuring range / Accessories
© 2013 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.
Accessories
Designation Order no.
Adapter, measuring hose to DN 8 14017515
Adapter, measuring hose to DN 20 14013758
Gas recovery bag, model GA45
For specifications see data sheet SP 62.08
14013015
Inlet pressure control unit for gas analysis instruments
Model GA05
14050089