Description
Part Number: 9B2B
Measuring Principle:
Ultrasonic Flow
Product Headline:
The device for accurate, reliable biogas measurement with loop-powered technology. Inline flowmeter designed for measurement of wet biogas and digester gas under fluctuating process conditions.
Sensor Features:
- Optimized for Low Pressure Gas: Specialized sensor design.
- No Additional Pressure Loss: Full-bore design.
- Process Transparency: Diagnostic capability.
- Multivariable Device: Measures flow, temperature, and methane.
- Medium Temperature: 0 to 80 °C (32 to 176 °F).
- Process Pressure: 0.7 to 11 bar a (10.2 to 159 psi a).
Transmitter Features:
- Convenient Device Wiring: Separate connection compartment.
- Safe Operation: No need to open the device due to display with touch control and background lighting.
- Integrated Verification: Heartbeat Technology.
- Loop-Powered Technology.
- Robust Dual-Compartment Housing.
- Plant Safety: Worldwide approvals.
Nominal Diameter Range:
- Single-Path Version: DN 50 (2″), DN 80 (3″)
- Two-Path Version: DN 100 to 200 (4 to 8″)
Wetted Materials:
- Sensor: 1.4404/1.4435 (316L)
- Transducer: HNBR
- Temperature Sensor (Option): AFM 34
Measured Variables:
- Volume flow
- Corrected volume flow
- Corrected methane volume flow
- Energy flow
- Methane fraction
- Calorific value
- Temperature
Max. Measurement Error:
- Volume Flow (Standard):
- ±1.5 % o.r. for 3 to 30 m/s (9.84 to 98.4 ft/s)
- ±3.0 % o.r. for 1 to 3 m/s (3.28 to 9.84 ft/s)
- Volume Flow (Option):
- ±0.1 % o.f.s. for 0.3 to 1 m/s (0.98 to 3.28 ft/s)
- ±1.5 % o.r. for 1 to 30 m/s (3.28 to 98.4 ft/s)
Measuring Range:
- Standard: 1 to 30 m/s (3.28 to 98.4 ft/s)
- Option: 0.3 to 30 m/s (0.98 to 98.4 ft/s)
Max. Process Pressure:
11 bar a (159 psi a)
Medium Temperature Range:
0 to +80 °C (+32 to +176 °F)
Ambient Temperature Range:
- Flange Material Carbon Steel: –10 to +60 °C (+14 to +140 °F)
- Flange Material Stainless Steel: –40 to +60 °C (–40 to +140 °F)
Transmitter Housing Material:
AlSi10Mg, coated; 1.4404 (316L)
Degree of Protection:
IP66/67, type 4X enclosure
Display/Operation:
- Display: 4-line backlit display with touch control (operation from outside)
- Configuration: Via local display and operating tools possible.
Outputs:
- 4-20 mA HART (passive)
- 4-20 mA (passive)
- Pulse/frequency/switch output (passive)
Inputs:
- Current input 4-20 mA (passive)
Digital Communication:
HART
Power Supply:
- DC 12 to 35 V (4-20 mA HART with/without pulse/frequency/switch output)
- DC 12 to 30 V (4-20 mA HART, 4-20 mA)
- DC 12 to 35 V (4-20 mA HART, pulse/frequency/switch output, 4-20 mA input)
- DC 9 to 32 V (PROFIBUS PA, pulse/frequency/switch output)
Hazardous Area Approvals:
ATEX, IECEx, cCSAus, NEPSI, INMETRO, JPN
Metrological Approvals and Certificates:
Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025).
Pressure Approvals and Certificates:
PED
Material Certificates:
3.1 material (wetted parts)
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