Reference Rotary Gas Meters EFS-R Energoflow - Wiratama Mitra Abadi | Industrial Equipment

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30.12.20

Reference Rotary Gas Meters EFS-R Energoflow

Reference Rotary Gas Meters EFS-R
 Reference Rotary Gas Meters EFS-R

Reference Rotary Gas Meters EFS-R is intended for installation on reference calibration rigs for calibration and verification of gas meters of any type with air as the operating environment.

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.

Technical Data

ParametersValue
 General industrial application designExplosion-proof design
Measuring mediumair
Operating pressure, MPa1,6; 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, kHz5
Signal of flow rate excess for the emergency system shutdownType «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
from 84,0 up to 106,7

Power consumption, W, max0,56,0
Supply voltage, DCVfrom 9 up to 24
Lifetime, min. years10
 
Ref: Energoflow.com

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