RMG Ultrasonic Gas Flow Meter
RMG USZ 08 In line ultrasonic Flow Meter
USZ 08 Ultrasonic Gas Meters are designated for measuring and calculation of the volume and flow rate of natural gas, petroleum gas, propane, butane, and other gases at operating conditions.
The operating principle of the meters is based on the measurement of the difference between the time of transmission of ultrasonic pulses along and against the gas flow. The time difference, as measured, proportionate to the flow speed is converted into the flow rate value.
USZ 08 Ultrasonic Gas Meter is a modern metering device that features high reliability, accuracy and stable operation. Big measuring range of the gas meter allows using it at gas stations having highly fluctuating gas flows.
Device for Custody-transfer Metering
- Suitable starting with absolute pressure pn = 1 bar
- High stability against turbulences thanks to 6 measuring paths in 3 levels
- Tested according to TR G13/OIML
- Air calibration with high-pressure test according to TR G7
- High flow rates (up to 40 m/s) – that means smaller pipe sizes may be used
- Exchange of sensors without recalibration
- High measuring accuracy
- Robust, dirt-repellent titanium sensors
- Easy operation using control computer with corrector function from flow computer Series ERZ 2000
- Design with dedicated meter and impulse outputs
- Diagnostic PC software RMGView
| DIN-DVGW-certified – PTB / MID-approved |
| Max. admissible pressure PS= 100 bar (optionally 250 bar) |
| Max. admissible pressure pmaxup to 100 bar (optionally 250 bar) |
| Meter sizes G 650 to G 25000(from Qmax 1000 m³/h to Qmax 40000 m³/h) |
| Measuring range max. 1: 50 bis 1: 125 |
| Connection DIN flanges PN 10/PN 16, PN 100 and Flanges according to ANSI 150, ANSI 300, ANSI 600 (optionally ANSI 900, ANSI 1500) in DN 100, DN 150, DN 200, DN 250, DN 300, DN 400, DN 500, DN 600 (optionally DN 750, DN 800, DN 900, DN 1000) |
| Uncertainty: | < ± 0.25% of the value measured (from 10% to 100% of Qmax) |
| < ± 0.15% with high pressure calibration | |
| Reproducibility: | ≤ 0.1% |
| Ultrasonic frequency: | 120 kHz/ 200 kHz |
| Measuring interval: | 1 update / s |
| Flow velocity: | 0.3 to 40 m/s (each direction) |
| Gas temperature range: | -20° to +55°C (optional -40°C to +55°C) |
| Power supply: | 24 V/DC |
| Power requirement: | Measuring element: < 15 W, computer: 35 W |
| Measured-value transmission (ERZ 2000): | DZU-interface (RS 485) |
| 2 pulse outputs | |
| current outputs (user-programmable, 0/4-20 mA, electrically isolated) | |
| Explosion protection | |
| ATEX | II2 G Ex de IIC T5/T6 / BVS 07 ATEX E 003 (sensor), BVS 07 ATEX E 035 (electr.) |
| IECEx | II2 G Ex de IIC T5/T6 / IECEx 10.0001 (sensor), IECEx 09.0034 (electronics) |
| CSA | Class 225802, 225882 / Cert. 2156089 |
| Protection class: | IP 65 |