Energoflow EFS-R Reference Rotary Gas Meters is intended for installation on reference calibration rigs for calibration and verification of gas meters of any type with air as the operating environment.
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| Energoflow EFS-R Reference Rotary Gas Meters |
The meters are equipped with an electronics unit (EU) and rotary transducer with mounted binary pulse-frequency sensors and pressure sensors. The meter EFS-R is intended for measuring the volume of gas passing through its input channel of the circular section. The gas flow volume is transmitted to a PC via the EU.
The meters are designed for vertical installation on the reference equipment with DN 20mm, DN 25mm, standard size G 2,5, G 10, G 16. The connection between the meter and PC is carried out via RS-485. Exchange protocol - Modbus RTU. “Start-stop” synchronization is of two-wire type based on the communication line RS-485.
Energoflow EFS-R Technical Data
| Parameters | Value | |
|---|---|---|
| General industrial application design | Explosion-proof design | |
| Measuring medium | air | |
| Operating pressure, MPa | 1,6; 4,0; 6,3 | |
| Limits of basic relative permissible error, not worse % | ± 0,2 | |
| Repetition, at least % | ± 0,03 | |
| Repeating accuracy within 2 years, at least % | ± 0,1 | |
| Frequency output with adjusted multiplication factor Fmax, kHz | 5 | |
| Signal of flow rate excess for the emergency system shutdown | Type «dry contact» | |
| Loading capacitance of emergency output shutdown: voltage, V, max max current, mA | 24 20 | |
| Operating conditions: -The temperature of the operating environment and ambient air, °C, at least - Relative humidity of air at a temperature +25 °C, % - atmospheric pressure, kPa | 10 up to 30 up to 80 | |
| Power consumption, W, max | 0,5 | 6,0 |
| Supply voltage, DCV | from 9 up to 24 | |
| Lifetime, min. years | 10 | |
Download Catalog: Ultrasonic Gas Flow Meters
Ref: Energoflow.com
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