Teledyne Valeport Water’s Type 804 EM is a fully waterproof, electromagnetic insertion flow meter that offers industry standard performance coupled with robust build quality and reliability, all backed up with Teledyne’s exceptional customer service and support mechanisms.
- Brand
- OVERVIEW
- FEATURES
- SPECIFICATIONS
- DOWNLOADS
Brand
Isco Flowmeters
OVERVIEW
The Type 804 flow meter will measure bi-directional flow rates as low as 0.02 m/s-1 (0.07 f/s) and up to 5 m/s-1 (16 f/s) with accuracies of better than 0.002 m/s-1 (0.006 f/s) possible. Add a real-time temperature measurment and flexible interfacing protocols, here is a tool that can help manage your water distribution networks.
A highly cost effective solution due to reliability, ease of installation and recovery, with no interruption to supply, for pipe diameters from 100 mm to 2000 mm (4 in to 80 in).
The 804 is powered by an internal battery
- The flexibility to interface to all data loggers, telemetry or SCADA systems through fully documented and open data protocols
- Pulse
- RS485 | Modbus RTU
FEATURES
Key Features
- High accuracy at low velocities
- Bi directional flow measurement
- Low power
- Digital signal processing
- Direct data output
- open protocols
- Internal self check in accordance with OIML R49, type P
- Integrated temperature
- Pressure monitoring port (max 20 bar, 290 psi)
Operations
- Flow monitoring:
- night flow
- meter testing
- DMA & zoning surveys
- Leak detection
- Metering:
- reservoirs | treatment and pumping stations
- Expert mode for data diagnostics
- Hot tap installation
- with a safety chain
- Permanent installation
- Temporary deployment
SPECIFICATIONS
Sensor
|
The Type 804 EM measures the flow of water based on Faraday’s law of induction to generate a voltage proportional to the flow speed of the water. |
Operational Performance
|
Bi-Directional Flow |
|
|---|---|
|
Range |
Minimum: 0.02 m/s-1 (0.065 f/s-1) Maximum: 5.0 m/s-1 (16 f/s-1) |
|
Accuracy |
in steady, fully developed flow: < 0.1 m/s-1 ±0.002 m/s-1 < .33 f/s-1 ±0.0065 f/s-1 > 0.1 m/s-1 ±2% > .33 f/s-1 ±2% minimum conductivity of 20 μs/cm required |
|
Temperature |
Operational: 0 °C to 50 ºC (32 °F to 122 °F) Storage: -20 °C to 60 ºC (-4 °F to 140 °F) Accuracy: ±0.5º unit |
Operational Characteristics
|
Temperature Resolution |
Electronics: -20 °C to +60 °C (-4 °F to 140 °F) Sensor element: -20 °C to +60 °C (-4 °F to 140 °F) Accuracy: ±0.5° unit |
|---|---|
|
Pressure Internal to Pipe |
Maximum 20 bar (300 psi) safety chain to be fitted |
|
Humidity |
Potted electronics for all environments |
|
IP68 | NEMA 6 |
10 metres for 72 hrs with connector mated |
|
Units – User Selectable Options: |
10 Meters (33 ft) for 72 hrs with connector mated |
|
Units – User Selectable Options |
mm | Metre | Foot Second | Minute | Hour | Day Litre | Megalitre | metre3 | Kilometre3 Ft3 | Kilo Ft3 Imp Gallon | Kilo Imp Gallon | Mega Imp Gallon US Gallon | Kilo US Gallon | Mega US Gallon Centigrade | Fahrenheit |
Power
|
Battery |
Internal: Lithium primary cell (19.0 Ah x 2) |
|---|---|
|
Consumption |
0.7 mA—typical scenario |
Calibration
|
The Type 804 is calibrated in a purpose built facility against multiple flow speeds to a traceable standard. |
Software
|
Valeport Configure, a Windows software App is available here for instrument set up. |
Physical Characteristics
|
Materials |
All materials in contact with the water are approved by WRAS: Stainless Steel – 316 | Brass | Nickel plated Brass | PVC | PVDF | Nitrile Rubber – 4470 |
|---|---|
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Dimensions |
Insertion Length: 300 | 500 mm (12 | 20 in) Sensor Diameter: 22 mm (.866 in) Stem Diameter: 19 mm (.748 in) |
|
Electronics Module |
diameter: 106 mm (4.17 in) height: 80 mm (3.15 in) |
|
Pipe Connection |
1” NPT |
|
Weight |
<3 kg |
Communications
|
The Type 804 EXP has both serial and analogue output capability. Setup is over serial COMs only – RS485 a PC App – Valeport Configure is supplied, licence free. |
|
|
Analogue |
2 pulse outputs – isolated, four options: flow | direction +’ve flow | -’ve flow +’ve flow | temperature dose output +’ve | dose output -’ve up to a maximum of 50Hz |
|
Digital |
RS485 Modbus RTU: 4800 up to 38400 | 8N1 or 8E1 Data Available: Point Velocity | Average Velocity | Flow (Noise estimate available) Totalisers: Positive | Negative | Net Temperature |
Ordering
|
Contact Teledyne ISCO |
Type 804 EM Insertion Flow Meter External Power (12 to 28 Vdc) |
|---|---|
|
604480005 |
300 mm (12 in) insertion depth |
|
604480010 |
500 mm (20 in) insertion depth |
|
604480055 |
Type 804 | PC interface cable |
|
604480060 |
Type 804 System Interface cable (4m) |
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