Type 804 – External Power Electromagnetic Insertion Flowmeter
Valeport Water's Type 804 ExP and Type 804 ExP mini are fully waterproof, electromagnetic insertion flowmeters that offer industry-standard performance coupled with robust build quality and reliability, all backed up by Valeport Water’s exceptional customer service and support.
To set it apart from the standard Type 804, the Type 804 ExP can be powered by a 12 to 28V DC external power supply as well as a single, internal battery to cover power outages.
Valeport Water's Type 804 ExP and Type 804 ExP mini are fully waterproof, electromagnetic insertion flowmeters that offer industry-standard performance coupled with robust build quality and reliability, all backed up by Valeport Water’s exceptional customer service and support.
To set it apart from the standard Type 804, the Type 804 ExP can be powered by a 12 to 28V DC external power supply as well as a single, internal battery to cover power outages.
Our Type 804 ExP insertion flowmeters will measure bi-directional flow rates as low as 0.02m/s and up to 5 m/s with accuracies of better than 0.002m/s. Add a real-time temperature measurement we can help you 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 70mm (Type804 mini) to 2000mm.
- The External Power version of the Type 804 can be powered by a 12 to 28 V DC supply
– a single internal battery will cover power outages - The flexibility to interface to all data loggers, telemetry or SCADA systems through fully documented and open data protocols
– Pulse
– RS232 | RS485 | Modbus RTU
Key Features:
- High flow measurment accuracy at low velocities
- Bi-directional flow measurement
- Low power
- Digital signal processing
- Direct data output
– open protocol - Internal self check in accordance with OIML R49, type P
- Integrated temperature
- Pressure monitoring port (max 20bar)
- 3-year warranty
Operations:
- Flow monitoring
– night flow | meter testing - DMA & zoning surveys
- Leak detection
- Metering
– reservoirs | treatment and pumping stations - Expert mode for data diagnostic
- Hot tap installation with safety chain
- Permanent installation
- Temporary deployment
Technical Specifications
Sensor
The Type 804 Exp 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
to a maximum of 5.0m/s
less than 0.1m/s⠀-⠀±0.002m/s
greater than 0.1m/s⠀-⠀±2%
(minimum conductivity of 20μs/cm required)
to a maximum of: 50ºC
Accuracy ±0.5º unit
Operational Characteristics
to a maximum of +60ºC
to a maximum of +60ºC
(safety chain to be fitted)
User Selectable
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
Electrical Power
[male]
Physical Characteristics
Stainless Steel - 316 | Brass | Nickel plated Brass |
PVC | PVDF | Nitrile Rubber - 4470
Dimensions (mm)
Sensor diameter: 22
Stem diameter: 19
Electronics module: diameter 106 | height 80
Dimensions (mm)
Sensor diameter: 16
Stem diameter: 12.3
Electronics module: diameter 106 | height 80
Communications
The Type 804 has both serial and analogue output capability.
Setup is over serial COMs only - RS232 or RS485 (factory setting)
a PC App - Valeport Configure is supplied, licence free
Analogue
flow | direction
forward flow | reverse flow
forward flow | temperature
dose output | dose output
up to a maximum of 50Hz
Digital
4800 up to 38400
8N1 or 8E1
Totalisers: Positive | Negative | Net
(noise estimates available)
Temperature
Battery Capacity
Calibration
The Type 804 ExP is calibrated in a purpose built facility against multiple flow speeds to a traceable standard
Software
Valeport Configure - a Windows App for instrument set up
Ordering
Contact Valeport Water
2 = 500mm
3 = 700mm
4 = 1000mm
Product Enquiry
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