Flow measurement
Electromagnetic insertion flow meter, Type 804 EM
OIML R49
Fully waterproof, battery-powered electromagnetic insertion flow meter for water distribution networks, for pipes from 100 mm to 2000 mm; installed and recovered with no interruption to supply.
- High accuracy at low velocities; bi-directional flow measurement
- Low power, digital signal processing
- Direct data output with open protocols
- Integrated temperature; pressure monitoring port (max 20 bar)
- Hot-tap installation with a safety chain; permanent or temporary deployment
- Uses: night flow, meter testing, DMA and zoning surveys, leak detection, metering of reservoirs, treatment and pumping stations
Specifications
- Brand
- Teledyne ISCO · 604480005 +3
- Measuring principle
- Electromagnetic induction (Faraday's law)
- Flow measurement
- Bi-directional, 0.02 to 5.0 m/s
- Accuracy (steady, fully developed flow)
- ±0.002 m/s below 0.1 m/s; ±2% above 0.1 m/s
- Minimum conductivity
- 20 µS/cm
- Pipe diameters
- 100 mm to 2000 mm
- Operating temperature
- 0 to 50 °C
- Temperature measurement
- −20 to +60 °C, ±0.5 °C
- Maximum pressure
- 20 bar
- Insertion lengths
- 300, 500, 700 or 1000 mm
- Sensor / stem diameter
- 22 mm / 19 mm
- Pipe connection
- 1" NPT
- Weight
- <3 kg
- Ingress protection
- IP68 / NEMA 6 (10 m for 72 h, connector mated)
- Outputs
- 2 isolated pulse outputs (up to 50 Hz); RS485 Modbus RTU, 4800 to 38400 baud
- Wetted materials
- WRAS approved: stainless steel 316, brass, nickel-plated brass, PVC, PVDF, nitrile rubber
- Self check
- In accordance with OIML R49, type P
- Power
- Internal lithium primary cells (2 × 19.0 Ah); 0.7 mA typical
On request
Variants & pricing
- Version
- 300 mm insertion depth
604480005On request- Version
- 500 mm insertion depth
604480010On request- Version
- 700 mm insertion depth
604480015On request- Version
- 1000 mm insertion depth
604480030On request
