- Turbine meter with electronic totalizer
- Short design
- Display of volume and flow rate
- Battery operation (6 years), external supply optional
- Serial interface (Modbus)
- Current output optional (with external supply)
- Very good reproducibility
- Durable, low maintenance and robust
- Horizontal or vertical mounting position possible
- Electronic linearization of the error curve
- Special versions for corrosive gases (e.g. raw biogas)
- Operation / parameter setting via the RMGViewTME diagnostic software
- DIN-DVGW tested
| Explosion Protection: | II 2G Ex ia IIC T4 Gb |
| Degree of Protection: | IP 65 |
| Ambient Temperature: | -25°C – +55°C |
| Medium Temperature Range: | -20°C – +60°C |
| Temperature Transmitter: | PT 1000 |
| Pressure Ranges: | 0.8 – 2,5 bar(a) 0.8 – 6,0 bar(a) 2.0 – 10 bar(a) 4.0 – 20 bar(a) |
| Power Supply: | Standard lithium battery with 3.6 V (service life 6+ years) Service life of the standby battery with 24 V/DC external power supply via interface or current output 10+ years |
| Outputs: | 3 transistor outputs: – HF – LF (puls width programmable) – Fault 4 – 20 mA analog output (only with external power supply), electrically isolated |
| Interface: | RS 485 (Modbus protocol) / external power supply |
Use of gas meters for different gases
| Gas | Tightness at 0°C and 1.013 bar | Meter Housing | Remarks |
| Natural Gas | 0.8 | Standard | |
| City Gas | Standard | ||
| Methane CH4 | 0.72 | Standard | |
| Ethane C2H6 | 1.36 | Standard | |
| Propane C3H8 | 2.02 | Standard | |
| Butane (C4H10) | 2.70 | Standard | |
| Air | 1.29 | Standard | |
| Argon (Ar) | 1.78 | Standard | |
| Helium (He) | 0.18 | Standard | |
| Carbon Dioxide (Dry) (Co2) | 1.98 | Standard | |
| Nitrogen (N2) | 1.25 | Standard | |
| Hydrogen (H2) | 0.09 | Standard | up to 20%. Generally, a reduced measuring range |
| Ethylene (Gaseous) (C2H4) | 1.26 | Special | Special version (also for humid gases): Teflon coating, special lubrication,, special material, etc. |
| Biogas | Special | Special version (also for humid gases): Teflon coating, special lubrication,, special material, etc. | |
| Sour Gas | Special | Special version (also for humid gases): Teflon coating, special lubrication,, special material, etc. | |
| Digester Gas / Sewage Gas | Special | Special version (also for humid gases): Teflon coating, special lubrication,, special material, etc. | |
| Sulfur Dioxide (So2) | 2.93 | Special | Special version (also for humid gases): Teflon coating, special lubrication,, special material, etc. |
RMG TME 400 Gas Volumeters are turbines designed for secondary metering (non custody transfer operation) with purely electronical totalizers. In contrast to mechanical turbine meters, in the TME 400 the volume flow is converted in the mechanical meter body to electrical impulses, which are transmitted to the electronical meter head where they are processed. In this way, the TME 400 can not only display and save the totalizer reading, but also, for example, the actual flow rate.
In addition, several totalizers can be realized and the meter can transmit its measured values as well as additional signals directly via various interfaces (pulses, analog, digital).
The TME 400-VM (Volume Meter) is the basic version of the TME 400 family. As the abbreviation VM indicates, it is a so-called volumeter, i.e. a pure operating volume meter for non-custody transfer applications.
