Main Caracteristics
Magnetic transmission
Maximum water temperature 40°C
Removable measuring machanism
Insentive to upstream disruptive elements 3550 orientable register
High resistance to water impurities
In option it may be eqipped with a removable bonnet for quick and easy maintenace
Equipable with an HRI Sensor
Applications
The 405S is a dry dial multijet water meter with a protected magnetic transmission between the measuring element and the totalizer. It is a PN 16 Meter suited to hard network conditions.
Its reliability resistance to bad water qualiti and noiseles operation will satisfy both end users network managers.
Available Options
- Copper/glass register (standard on DN25 to 40)
- HRI electronic sensor (Pulse Unit or Data Unit) for DN 15 – 40
- Cu/glass register for DN15 & 20 meters non return valve.
Accuracy
The special design of this meter combined with the precision of the plastic parts injected by own. Sensus injection departement results in an accuracy curve exceeding the requirement results in ab accuracy curve exceeding the requirements for the ISO 4064 standard.
The meter will remail its metrological characteristics even if it is subject to bad water quality charged with sand or other particles.
Reliability
Larger particles pcan be present in water can be filtered firdt by the tubular strainer, then by the seat stainer. The smallest particles can go trhrough the meter witout damage.
All the gears re situated in the dry part of the meter (totalizer), which removes any risk of blockage due to suspended matter in the water.
The 405S water meter keeps its metrological accuracy for many years of operation, even in very difficult working conditions.
Legability
The display on 8 drums (5 for m3, 3 for decimals ), and 1 pointer ensures perfect readability. The lowest resolution is 0.05 litres. The dial has a central indicator can be used to reveal a downstream leak.
The plastic register casingis equipped with a wiper for optimum legibility under all conditions. The 405S water meter operates in horizontal position and its dry dial can rotate to 3550.
The dial can therefore be easily read under all conditions of use.
As an option (standard for DN25 to 40 meters), The meter can be supplied with a cupper-glass register, making it perfectly water – tight (IP 68)
Marking
An arrow on both sides of the body shows the direction of flow.
The year of manufacture and the ndividual meter number are engraved to the cover.
The manufactures name, the type of meter, yhe nominal flowrate, the metrological class and the EC, patter approval number are printed on the dial.
Installation and Operating instruction
The 405S meter must be installed in a low point of the pipeline, with the arrow cast on the body showing direction of the water meter flow. Before fitting the water meter, all pipework must be flushed out to remove all impuriities.
An upstream stop valve is recomended to allow installation and removal of the water meter.
When connecting the meter with the water network yhe upstream valve must be opened slowly so that the water fills the meter as smoothly as possible.
No special maintenance required.
Technical Characteristics
Metrological characteristic – EEC Directive 75/33
| Nominal Flowrate (Qn) | 3.5 m3/h |
| Maximum Flowrate (Qmax) | 7 m3/h |
| Minimal Flowrate (Qmin) | 70 l/h |
| Transition Flowrate (Qt) | 280 l/h |
| Operation Charactristics | |
| Starting Flowrate | 20 l/h |
| Minimum Flowrate ±5% | 50 l/h |
| Transtional Flowrate ±2% | 100 l/h |
| Maximum registration | 105 m3 |
| Lowest resolution | 0.05 lh |
| Pressure loss at | 0.6 bar |
| Working Pressure | 16 bar |
| Sizes and Weight | |
| Length | 260 mm |
| Width | 102 mm |
| Total Height | 142 mm |
| Height from base centreline | 48 mm |
| Theread | diameter G1/1/4″B 41.91 mm |
| Theread | 2.309 mm |
| Weight | 2.3 kg |