Form creation date: 01.04.2008
Document creation date: 13.01.2020
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1.0 GENERAL DESCRIPTION
The METREX2 is a digital gas detection instrument which can be used for systematical survey of
natural and town gas networks and for leak detection outside as well as inside of buildings.
Due to its compact design and modest size the METREX2 can be transported easily and the large
LCD-display with the instantaneous reading of the gas concentration measured makes it simple to
work with this device. Furthermore, a selection of various types of probes makes it possible to use
it at points otherwise difficult to reach.
A microprocessor manages all the instrument performances: control of the sensor for the detection
of gas concentrations, the functions of the instrument which can be commanded by keyboard,
management of alarms, registration of data and serial communication for download on PC of
memorized data.
This unit is designed to comply the actual ATEX directive.
METREX2 works with a group of ecological harmless, rechargeable nickel metal hydride batteries
which allow - when fully charged - a working autonomy of at least 8 hours under normal working
conditions and a constant temperature of 20 °C.
Important: Recharging of batteries and I/O connection must be carried out in safe environments.
The METREX2 has three measuring ranges: PPM (part per million), %Vol (volumetric) and the LEL
(Lower Explosion Limit).
The METREX2 has three sensors: one semiconductor sensor, one pellistor pair sensors and one
volumetric thermal conductivity pair sensors.
