Overview
This Enviro Testers Methane Biogas Flow Meter is based on Carmen Vortex Principle, which adopts piezoelectric crystal as testing components. It is a new kind of stress detecting vortex flowmeter. It has the advantages of wide range rate, high accuracy, low pressure loss, good medium generality, pulse signal output proportional to flow, convenient to connect with computers.
Technical Specifications
| Nominal Diameter (mm) | 25,40,50,65,80,100,125,150,200,250,300,(300 to 1000 Insert type) |
| Nominal Pressure (MPa) | DN25-DN200 4.0 ( > 4.0 Supply agreement),DN250-DN300 1.6 (> 1.6 Supply agreement) |
| Material | Stainless Steel |
| Allowable Vibration Acceleration | Piezoelectric type: 0.0004 lb (0.2 g)Capacitance type: 0.002 lb to 0.004 lb (1.0 g to 2.0 g) |
| Accuracy | ± 1 % R, ± 1.5 % R ,± 1 FS;Insert type: ±2.5 %R, ±2.5 % FS |
| Range Of | 1:6 to 1:30 |
| Medium | Gas Liquid Steam |
| Output | 4 mA to 20 mA |
| Display | LCD Digital Display |
| Communication | RS485 or Modbus // HART |
| Pressure | 1.0 Mpa |
| Diameter | DN15 to DN 300 |
| Power Supply Voltage | Sensor: +12 V DC, +24 V DC;Transmitter:+12 V DC ,+24 V DC; Battery type:3.6 V Battery |
| Output Signal | Square wave pulse ( not including the battery power supply type ): high level or low level5 V,1V; current: 4 mA to 20 mA |
| Pressure Loss Coefficient | In line with the JB or T9249standard Cd = 2.4 |
| Explosion Proof Marks | Intrinsic safety type: Exd IA CT2-T5 flameproof type: Exd CT2 to T5 |
| Protection Grade | The ordinary IP65 diving type IP68 |
| Environmental Conditions | Temperature – 20 % to 55,5 % to 90 % of relative humidity,atmospheric pressure is 86 kPa to 106 kPa |
| Applicable Medium | Gas, liquid, steam |
| Transmission Distance | Three wire system pulse output type: < 300 m, two line standard current output type (4 mA to 20mA): load resistance less than 750 ohm |
| Medium Temperature | Piezoelectric type:40 °F to 500 °F (-40 °C to 260 °C), 40 °F to 608 °F (-40 °C to 320 °C) Capacitance type: 40 °F to 572 °F (-40 °C to 300 °C), 40 °F to 752 °F (-40 °C to 400 °C), 40 °F to 842 °F (-40 °C to 450 °C (Supply agreement)) |
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