The renewal of 30 years supply record GF series gas flowmeter. Equipped with ultrasonic thermometer, widescreen display and multi-level output interface. Maximize the performance of GF-2500, controls, and monitors any gas flow save energy and cost.
Feature
- Wide-screen LCD and various display function
- High noise tolerance design
- No pressure loss
- Various output port (analog x2, digital x1, contact x4)
- Automatic pressure and temperature correction
- Easy replacement with the compatibility of the existing sensors.
- Wider measurement range
Specification
Pipe
- Fluid Condition: Gas and Steam
- Applicable pipe diameter: Nominal diameter 50mm ∼ 5000mm (*1)
- Spool piece :
- Pipe diameter: 50mm∼500mm (*2)
- Flange: JIS10K standard (*3)
- Material: SGP, STPG, SUS316, SPTY (*4)
- Socket: Standard type :
- Screw Type
- Flange Type (Screw type with sensor)
- Flange Type (Large sensor type)
Sensor Probe
- Sensor Probe :
- Gas :
Standard (Screw type) Large ( Flange Type) Nominal Diameter 50mm∼10000mm (*5) 1000m∼(*5) Temperature -30ºC∼180ºC -30ºC∼180ºC Pressure -0.05Pa∼1MPa (0.5∼10kgf/cm³) -0.05Pa∼1MPa (0.5∼10kgf/cm³) - Steam : Standard (Flange type) 1MPa (10kgf/cm³) type
- Custom (*6)
- Gas :
- Seal :
- Probe fittings: Combine with gas seal unit
- Gas seal unit: Standard, steam, large, custom
- Gas Seal Adaptor: instead of a gas seal unit (not used)
- Installation Requirement :
- Upstream side: 15D
- Downstream side: 5D or more (D is inner diameter)
- Cable: Distance from sensor probe to converter, 6m or 10 (standard)
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Converter
- General :
- Measuring method: Ultrasonic transit time flow meter
- Chordal path : 1 path or 2 path (option)
- Traverse: Z or V
- Measurement compensation range: temperature ±25ºC, pressure ±30%
- Accuracy : ±1.0% FS (flow velocity 5 ∼ 60m/s)
- Reproducible : 0.2%
- Flow velocity resolution : less than 0.5mm/s
- Averaging : Default 10 sec (0.5∼180 sec variable)
- Ultrasonic Thermometer: Measure temperature (in case of air) by ultrasonic transit time
- Ambient temperature: -10 ∼ +50ºC
- Power Supply :
- Power supply: AC100V±10%, 50/60Hz, AC115V, 220V (option)
- Surge protection: Built-in surge absorber
- Power dissipation: Max.25W
- Output
Analog output1 Range: DC4∼20mA, Over range: DC0∼24mA Load resistance: Less than 1000Ω Analog output2 reverse flow, temperature, pressure Range: DC4∼20mA, isolated Over range: DC0∼24mA Load resistance: Less than 1000Ω Pulse output1 Integrated pulse Open collector standard 0V, 0.2A Pulse width: 1.6ms or 50ms Pulse output2 Integrated pulse, alarm, normal and reverse flow, upper I and lower limb Open collector standard 30V, 0.2A Pulse output3 Alarm, normal and reverse flow, upper I and lower limit Open collector standard 30V, 0.2A Pulse output4 Alarm, normal and reverse flow, upper I and lower limit Open collector standard 30V, 0.2A Power supply for pressure and temperature DC24V +/-0.5V 0.2A Digital output RS422 x 1 Input Temperature : DC4 ∼ 20mA Pressure: DC4∼20mA Display LCD : 128 x 240 dos LED back right Character: Alphanumeric, mathematical symbol (ex, +, -, Σ) Display content :
- Measurement display
- Instantaneous flow rate (analog1, 2)
- Input temperature, pressure, ultrasonic temperature meter
- It can display the content of 4 in all contents
Configuration view: diameter, temperature, pressure, flow range Adjustment view: zero-point adjusting, change of time constant, low-cut
Catakog : GF-2500 ultraonic gas flowmeter
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