MRU GmbH USER MANUAL MFplus Part 2 OPTION TRGI
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Introduction
This manual is an important element of the delivery and explains in detail how to operate the MFplus but also
ensures the safety of the user and protects the environment.
This manual „USER MANUAL MFplus Part2 TRGI“ only addresses the TRGI functions.
For the general operation of the MFplus the manual „USER MANUAL MFplus” is essential!
It is the duty of each user to get familiar with the contents of these manuals and to follow the directions
especially regarding security.
This device must always be used according to the latest DVGW regulations!
The MFplus TRGI is used to determine gas leakage in low pressure gas tubes according to DVGW-worksheet G
600 (DVGW-TRGI)
The gas leakage rate will be determined according to device class D based on the pressure drop.
For the pressure the unit mbar and bar are used.
1 mbar <> 1 hPa
Before starting a measurement the device and accessories must be inspected for any damages. A
measurement is only possible after the zeroing procedure has been accomplished successfully.
The zeroing takes between 1 and 3 minutes (depending on sensor condition) and should be made in the
recommended measuring position.
For best visibility and operation the device can either be lying flat on the back or can be hanging using the
rear magnets. The position of the device doesn’t influence the test results (accuracy).
OVERLOAD
ATTENTION:
The device is protected against overload up to 2 Bar. In case the overload value is exceeded the pressure
sensor can be destroyed. In that case the warranty for this device will expire.
Calibration
The MFplus TRGI must be calibrated on a yearly basis.
