Portable Pumback SF6 Gas Analyzer Transdox 6101 SF6

The Transdox 6101A SF₆ PumpBack is the latest in fully-automatic gas analyzers, designed for controlling and monitoring the quality of SF₆ in gas insulated sub-stations and circuit breakers with zero waste and emissions. The analyzer is housed within a rugged IP66 Peli transport case (including wheels and handle) weighing 17kg. A lithium battery gives up to eight hours of operation, making this a truly portable field instrument.
More info about features and operation of a SF6 Gas Analyzer: the Transdox 6101 SF6

Once connected the Transdox automatically samples the gas from the GIS / circuit-breaker, allowing the operator to stand at a safe distance. Up to five measurements can be taken, with the gas stored inside the analyzer before being pumped back automatically. A vacuum purge cycle and gas storage system ensures that no air is allowed to contaminate the gas sample and no SF₆ is allowed to escape during the testing period.

The analyzer simultaneously measures SF₆, SO₂ and H2O content. Using a high-precision infra-red SF₆ detector, the analyzer offers exceptional accuracy and stability when measuring the purity of SF₆. Additional sensors such as HF, O₂, CO, H₂S, CF₄ & R12 are available. Due to the modular design up to six sensors can be fitted within a single analyzer in order to suit a variety of customer requirements.

SF₆ gas pressure in the internal sample compartment is recorded and logged by the analyzer. All measured gases are analyzed and data-logged simultaneously and just a few minutes are required to achieve a stable analysis. A powerful 10 bar compressor with a separate lithium battery power supply then returns the gas to the compartment, or the gas can be stored internally for recycling at a later time.

Incorporating a 7” (18cm) full color touch screen interface with soft menu keys and a thermal printer for permanent record keeping, the Transdox is easy to operate and configure. The analyzer is fully compliant with all current IEC and CIGRE test configurations and offers the facility to create custom tests. All data is permanently logged. The test location / user name is fully editable using an alphanumeric key-pad. Data is MS Excel formatted and can be downloaded via a USB memory stick. A 2m armored sampling hose with sealed fittings is supplied and is fully compatible with.

Features:

• Fully automatic SF₆ testing of GIS & circuit breakers
• Zero waste and emissions testing of SF₆ purity
• Lithium battery powered 8-hour operation
• SF₆, SO₂ and H2O (dew-point) measured as standard
• Up to 3 other gas sensors available (HF, O₂, CO, H₂S, CF₄ & R12)
• Up to five separate tests performed with the gas sample stored internally
• Housed in a rugged IP66 Peli transport case. Total weight: 17kg
• Thermal printer fitted as standard
• 7” (18cm) full colour LCD display with touch screen operation
• Compatible with IEC & CIGRE test standards for fast operation
• Full data-logging and MS Excel compatible data download onto memory stick
• Multi-Language (English, French, German, Spanish, Portuguese, Mandarin)
• Password protection feature
• Supplied with a 2m armored sampling hose with DILO compatible fittings

Applications:

• Controlling SF₆ quality in switches, bus bars and circuit breakers in Gas Insulated Substations (GIS)
• Checking for the buildup of corrosive decomposition products such as SO₂ present in the SF₆
• Measuring the moisture content of SF₆ gas by using a dew-point analyzer
• Applying a condition based maintenance program (CBM) to extend the life cycle of the SF₆
• Detecting the presence of leaks and SF₆ discharge
• Indication of arcing and breakdown through the buildup of corrosive by-products

Specifications Transdox 6101 SF₆

Technical Data: Analyzer
Voltage	90-260Vac, 50/60Hz
Analyzer dimensions	L:560mm x W:450mm x D:270mm
Weight	17 kg (Total instrument and case)
Display	7” (18cm) full colour LCD display with touch screen operation
Warm up time	3-4 minutes at 20°C
Operating temperature	-20°C to 55°C
Gas Sampling	Up to 5 samples taken before internal reservoir is full
Compressor	Up to 10 bar with up to 25 cycles per battery charge
Pressure Range	3.5-10 bar; displayed on-screen
Battery	2 Li-ion batteries in excess of 8 hours with 4-6 hour charge time.
Data Output	Excel compatible data via USB memory stick. 4GB internal data storage allowing for approximately 1 year of continuous monitoring.
Printer	Integrated thermal printer.
Sample connections	2m Steel braided pressure tested hose, all fittings closed connector.

Technical Data: Sensor
SF6 Sensor	Infra-Red 0-100%; ± 0.5% FS accuracy; Resolution 0.1%
H2O Sensor	-65°C to +20°Cdp; ± 2°Cdp accuracy of reading*; Resolution 0.1°Cdp
SO2 Sensor	Electrochemical Cell 0-100ppm or 0-500ppm; ± 2% FS accuracy; Resolution 0.1ppm
Life expectancy	2-3 years: SO2; >5 years: SF6 & H2O
Measurement time	3-5 minutes
Calibration	SF6 and SO2 user selectable cal gas values. H2O sensor factory fixed
* Minimum accurate reading possible with this sensor is -60°Cdp. Sensor will respond from wet to dry in approximately three minutes.

For more information:

Features and operation of a SF6 Gas Analyzer: the Transdox 6101 SF6