FMG - FMTB Series - Test Bench

The FMTB test bench series are compact test benches using air under atmospheric conditions.

The test bench is designed to calibrate to a high level of accuracy in the shortest possible test time. The FMTB is equipped with high quality sensors and instruments whose measurement results are traceable to international standards. The FMTB series units are fully automated and by reducing thermal expansion effects, the smart control makes it possible to calibrate meters in a very short time. Using a multi-channel data analyzer with built-in clock it is possible to sample and collect data with a very high accuracy.

The Flow setting is performed over a frequency regulated blower in combination with regulation valves that enable fast and accurate flow regulation over a wide range at any set point. The FMTB is pre-calibrated by FMG and ready for use. It is suitable for calibration of diaphragm meters, rotary gas meters, turbine gas meters and ultrasonic gas meters. The smart design, self-diagnostics and use of high quality components ensure that maintenance is kept to a minimum. Remote operation using the internet makes service and support by FMG easy.

Product DATASHEET - FMTB Series - Test Bench

Test Bench - FMTB Series


The FMTB series is suitable for testing several meter types in a large flow range. This makes the FMTB series attractive for manufacturers of gas meters and test laboratories, and also for companies with many field installed gas meters that have to be checked periodically. The compact design makes it possible to place the test bench in a small area. Due to the small volume of the FMTB and short test times the line pack effect (thermal expansion of the volume between the Meter Under Test and the reference meters during the test) is reduced to a minimum.

Technical Specifications

Type Flow range
Number of master
Power supply
W x D x H
FMTB-B650/IO 0,25 - 650 2 200 - 240 1350 x 1150 x 1500 500
FMTB-B1000/IO 0,25 - 1000 2 380 V 3 phase 1350 x 1150 x 1500 500
FMTB-B1600/IO 0,25 - 1600 3 380 V 3 phase 1350 x 1150 x 1500 600
FMTB-B2500/IO 0,25 - 2500 3 380 V 3 phase 1350 x 1150 x 1500 650