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VARIOTEC 480 EX |
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VARIOTEC 480 EX - Cost-effective gas detector for distribution
networks |
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The VARIOTEC® 480 EX range gives network technicians
an efficient and cost effective means of carrying out all common measurement
tasks in gas distribution networks.
The VARIOTEC® 480 EX instruments utilise the same accessories
and probes as previous generations of Sewerin gas measuring instruments
so if you are upgrading there is no need to purchase new ones.
The 480 EX and 460 EX can incorporate
an optional ethane detector to quickly distinguish between natural and swamp
gas. No more false indications from swamp gas rather than natural gas.
All variants, except for the VARIOTEC® 400 EX, can have
optional oxygen and carbon monoxide sensors fitted. |
VARIOTEC
480 EX FEATURES |
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VARIOTEC 480 EX - Operation |
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- Unique and simple to use operating system, with jog dial, soft keys
and easy to follow task orientated menu navigation
- Large matrix display with backlight, clearly showing all gas levels
- Rapid charging in 4 hours – More usage time
- Power supply via 4 AA rechargeable or disposable batteries
- On board data logging with PC communication via USB port
- The carrying handle doubles as a clever display stand allowing versatile
positioning and easy carrying
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VARIOTEC 480 EX - Efficiency |
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- Simple, task orientated menu structure means new users are up and
running with very little training
- No complicated setup required even after extended periods of disuse
- Cost-effective operation thanks to low capital cost, high up time,
low maintenance costs, and paperless inspection regime
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VARIOTEC 480 EX - Measuring technologies |
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- Fast and highly-sensitive semiconductor sensor for measuring very
low gas concentrations in the ppm range
- Electrochemical sensors for measuring oxygen and carbon monoxide (optional)
- Integral gas chromatograph to measure ethane. This differentiates
between natural gas and swamp gas without any other accessories (optional)
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Application: Inspection above ground |
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Measuring low gas concentrations above ground and above gas
pipes.
Example: Inspection of underground gas pipes |
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Application: House |
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Measuring low gas concentrations in buildings and locating
the source of gas leaks.
Example: Leak detection in accessible gas installations |
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Application: Work area monitoring |
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(Warning EX and Warning ExTox)
Monitoring and protecting the work environment, property and personnel during
work on gas pipes and/or gas installations where there is a risk of explosion.
Example: Work on gas pressure regulating stations, biogas plants, responding
to reports of the smell of gas |
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Application: Enclosed spaces |
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Measuring gas concentrations in enclosed spaces where there
is increased potential of gas build up.
Example: Telephone switch boxes, lamp posts, sewers |
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Application: Measuring in bar holes |
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Measuring the gas concentration and determining gas dispersal
in the ground, leak classification and location of suspected gas leaks.
Example: Reducing the area of leak search |
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Application: Gas purity measurement |
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Proving gas purity / absence of natural gas and or oxygen
in gas pipes.
Example: Decommissioning and recommissioning of gas pipes |
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Application: Ethane analysis |
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Determining the methane, ethane, and propane components of
a gas sample
Example: Distinguishing between natural gas and swamp gas if a leak occurs |
Ethane analysis – Natural gas or swamp gas? |

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The VARIOTEC® 480 product family helps the
user pinpoint leaks in underground pipes.
Before making an expensive excavation you need to be sure the gas detected
is really emanating from a natural gas pipe and that it is not swamp gas
or coming from another gas source.
The optional integrated ethane detector can quickly and easily distinguish
between natural gas and swamp gas. There are no accessories or any specialist
training required. The user is guided through the ethane analysis process
with clear prompts. The result can then be saved and stored on a PC for
record keeping. |
Ethane analysis – Accessories |

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- Charging equipment for 12 V=, 24 V= or 230 V~
- Docking station/wall bracket
- System case
- Testing equipment and test gases
- Flexible hand probe with probe hose
- Localisation probe
- Bell probe
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