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VARIOTEC® 460 -Detecting Water Leaks using
Hydrogen Tracer Gas Tracer gas is an extremely useful
tool to find water leaks particularly on small diameter pipes, such as
customer services and internal plumbing.
Method of operation
The tracer gas, a mixture of 5% hydrogen and 95% nitrogen, is
introduced into the pipe with the suspected leak. The gas, being the
lightest element and made up of small molecules, will exit through the
leak and make its way to the surface where it is detected by the highly
sensitive Variotec® 460 gas detector.
Variotec® 460 - In use
The surface over the route of the pipe is searched for traces of gas
using one of a selection of probes.
The large LCD display instantly responds to any changes in gas
levels.
The escaping gas concentration is displayed both numerically and by a
pseudo analogue scale making it very clear where the highest readings
are obtained.
The sensors used (there are two to allow more precise readings) and
the measuring scale automatically switch between the most suitable range
but can also be scaled manually to refine the search area.
Why Hydrogen?
Hydrogen, at 5% in a balance of nitrogen, is:
- Non Flammable
- Non Toxic
- Non Corrosive
- Totally Safe
- Commonly used as a blanket gas in welding so is
cheaply and readily available from all the standard gas suppliers
- Is the smallest and lightest molecule so
permeates all surfaces including concrete, asphalt, block paving and
grass, rising quickly to the surface
- Rapidly disperses in air allowing you to home in
quickly on the source
- Hydrogen is renewable and cheap
- Hydrogen doesn't occur naturally, so no false
positives
Variotec 460 Locating Probes
- Carpet probes for long stretches of smooth
surfaces
- Bell probes which concentrate the gas for
localizing in undergrowth or on smooth surfaces such as kitchen
floors
- Hand probes both telescopic and flexible to reach
into awkward areas
- Cone probes for localization in bar holes you
make in the ground
Charging Carry Case
- Parts and accessories are stored neatly in the
hard protective carrying case
- The VT460 may be charged directly from a 12 V
vehicle socket or from the mains
- The detector can be charged whilst remaining in
the case
Specifications
| Sample intake: |
Via built-in membrane pump |
| Operating time: |
≈ 8 hours (with pump) |
| Power supply: |
AA x 4 (Rechargeable) |
| Weight: |
1.5 Kg |
| Dimensions (WxHxD): |
129x192x65 mm |
| Operating temperature: |
-10 °C ... +40 °C |
| Storage temperature: |
-25 °C ... +70 °C |
| Protected to: |
IP 54 |
| Calibration: |
Tracer gas |
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