VARIOTEC ® 460 Tracergas

The specialist for leak detection withtracer gas and hydrogen

VARIOTEC ® 460 Tracergas
Rely on precision and safety
The VARIOTEC ® 460 Tracergas was developed especiallyfor leak detection on underground pipes by using tracer gas. It ischaracterised by an outstanding price to performance ratio.
Precise:The extraordinarily low cross sensitivity of thegas-sensitive semiconductor (SC) with regard tomoisture and methane ensures an absolutely sure
result and a resolution down to 0.1 ppm H2.

Functional: Thanks to an innovative operating concept, a large
display and simple menu structure, device operators
can quickly get reliable results.
Efficient:

In combination with the bell probe D80 you canachieve outstanding reaction times.

Flexible:

The expanded measuring range of thethermal-conductivity sensor, up to 100 % vol. H2easily allows for further measuring tasks.

Integrated: Save your measurements and transmit the results
using the USB interface on the computer.
Mobile:The 4 AA-size rechargeable batteries can be charged
in just 3 hours and the operating time is at least
8 hours. As an alternative, you can use disposable
batteries.

Reliable:

Sewerin measuring devices are well known for their
quality and durability.

A tried and tested method
Using tracer gas is a tried and tested method of pinpointing leaks. It can be used in gas and water distribution networks, pipelines inbuildings, heating systems, pressurised communication cables, gas-filled high voltage power lines and landfill sites sealed with double
membrane layers. It can also be used to test for leaks in industrial products such as pipes, pumps, engine blocks and airfoils.
Detecting gas leaks by tracer gas involves feeding a mixture of 95% nitrogen (carrier gas) and 5% hydrogen into the pipelines or otherequipment/products being tested. The hydrogen escapes through the leak and is detected by the highly sensitive, specialised sensor.
The low amount of hydrogen (just 5%) means that this method is safe: the gas is incombustible as per ISO 10156 thanks to the use ofnitrogen as the carrier gas. It is non-toxic, and therefore also permitted for use in drinking water networks, as well as non-corrosive.
Tracer gas is cheap and easy to obtain from technical gas or welding gas dealers. It is also environmentally-neutral and permeates allcover layers such as asphalt, concrete and other seal coats. Tracer gas always looks for the shortest route from the leak to the surface.

VARIOTEC ® 460 Tracergas

Inspection above ground

Inspections in houses

With the VARIOTEC ® 460 Tracergas and a bell or carpet
probe you can measure the smallest concentrations of gas above
a gas pipe laid in the ground, so you can reliably determine thedischarge location above a leak on gas or water pipe lines.

Detect the smallest traces of gas in buildings and pinpoint thesource of the gas, e.g. for leaks in internal, covered pipe
systems.

Measuring in bar holes

Gas measurement

In combination with a localisation probe you can measure the gas
concentration in the ground. In this way, you can exactly pinpoint
the suspected leak site.

Ensure that the lines are either completely filled with or completely
emptied of gas when commissioning or decommissioninghydrogen pipelines.

Applications
Application

Measuring range (H2)

Sensors

Inspection
above ground

0.0 ppm – 5 % vol.

Gas-sensitive semiconductor
Thermal conductivity sensor

Measuring in bar holes

0.0 % vol. – 100 % vol.

Thermal conductivity sensor

House0.0 ppm – 5 % vol.

Gas-sensitive semiconductor
Thermal conductivity sensor

Gas measuring

0.0 % vol. – 100 % vol.

Thermal conductivity sensor

Technical data
Dimensions(W × D × H):

approx. 148 × 57 × 205 mm

Weight:approx. 1000 g

Protection rating: IP54
Certificate:TÜV 07 ATEX 553353 X II2G Ex d e ib IIB T4 Gb
Basic device without leather bag for:
CH4, C3H8, C4H10, tracer gas with max. 5 % H2 in N2
II2G Ex d e ib IIC T4 Gb
Basic device with leather bag for:
CH4, C3H8, C4H10, tracer gas, H2Charging voltage: 12 V DC (max. 1 A)
Operatingtemperature:-20 ºC – +40 ºC

Storagetemperature:-25 ºC – +60 ºC

Atmosphericpressure:

800 – 1100 hPa

Humidity:

5 – 90 % r.h., non-condensing

Interface:USB

Memory:8 MB

Display:

320 × 240 pixels

Accessories that add value· Bell probe D80, carpet probe, localisation probe· Carrying case· Test gas generator PGG H2 for producing small amounts ofhydrogen for function control of the “Inspection aboveground” and “House” application ranges.

106901 – 07/12
Subject to technical changes.

Hermann Sewerin GmbH | Robert-Bosch-Straße 3 | D-33334 Gütersloh
Phone +49 5241 934-0 | Fax +49 5241 934-444 | www.sewerin.com | info@sewerin.com

RLWA-BI 010322012 GB

Please contact us for a comprehensive quotation, including additional technical specifications and information on accessories.