FLOWSIC500
High pressure gas flowmeter for natural gas distribution
Overview
Product Description
The FLOWSIC500 ultrasonic flowmeter enables extremely accurate natural gas distribution measurement. It is overload-proof, accurate and is monitored by an intelligent diagnostics system. It can easily be integrated into existing measuring stations. It operates either in a self-sufficient energy configuration or in failsafe network operation with battery back-up. It complies with all pertinent standards and directives and provides the security of a continuous and blockage-free gas supply.
Key Benefits
- Highest measurement certainty and safety of continuous gas supply
- Reduction of installation costs due to integrated flow conversion
- Simple installation, compatible with conventional technologies (turbine and rotary displacement meters)
- Minimal operating costs due to being nearly maintenance-free
- Simplified recalibration due to straightforward cartridge exchange
- Reliable under dynamic load changes
- Self-sufficient operation
Specifications
- Nominal pipe size
- DN 50 (2") … DN 150 (6")
- Measuring Medium
- Natural gas (dry, odorized)
- Measured variables
- Volume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*) (*) additional function included with integrated volume correction
Measuring task
- Measured variables
- Volume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*) (*) additional function included with integrated volume correction
- Measuring Medium
- Natural gas (dry, odorized)
- Repeatability
- ≤ 0.1 %
- Accuracy
- Qmin up to 0.1 Qmax ≤ ± 1 % 0.1 Qmax up to Qmax ≤ ± 0.5 % Accuracy class 1; maximum allowed error limits Qmin up to 0.1 Qmax ≤ ± 2 % 0.1 Qmax up to Qmax ≤ ± 1 % After high pressure flow calibration: ±0.2 % at test pressure; otherwise ±0.5 %
- Medium temperature range
- -25 °C ... +60 °C Optional: –40 °C ... +70 °C (–13 °F ... +140 °F Optional: –40 °F ... +158 °F)
- Operating pressure range
- PN16 (EN 1092-1): 0 bar (g) ... 16 bar (g) / 0 psi(g) ... 232 psi(g) Class 150 (ASME B16.5): 0 bar (g) ... 20 bar (g) / 0 psi(g) ... 290 psi(g)
- Nominal pipe size
- DN 50 (2") … DN 150 (6")
- Metrological approvals and certificates
- MID: 2014/32/EU OIML R 137-1&2:2012 EN 12405: 2010 (for integrated flow conversion)
- Hazardous area approvals
- IECEx Ex ia [ia] IIC T4 Gb, Ex op is IIC T4 Gb ATEX II 2G Ex ia [ia] IIC T4 Gb, II 2G Ex op is IIC T4 Gb NEC/CEC (US/CA) CSA: I.S. for Class 1 Division 1 Groups C and D T4; Ex/AEx ia IIB T4 Ga
- Digital Outputs
- Configurations: LF pulses + malfunction, electrically isolated (fmax = 100 Hz) HF pulses + malfunction, electrically isolated (fmax = 2 kHz) Encoder + LF pulses, electrically isolated (fmax = 100 Hz) Encoder + HF pulses, not electrically isolated (fmax = 2 kHz) 2x pulses, HF and LF, electrically isolated (fmax = 2 kHz / 100 Hz)
- Digital communication
- R-S485 (external powered, in combination with LF- or HF pulses)