Project Description
ISW1598 Multi-jet postpaid water meter is an IMPELLER (turbine) water meter with magnetic transmission, dry type register for residential application with sizes from Dn15 to Dn50 designed and manufacture by our company and meets to the requirements of Directive 2004/22/EC on measuring instruments; the European Standard EN14154+A1+A2: Water Meter; the International Organization of Legal Metrology OIML R-49: 2006(E): Water meters intended for the metering of cold potable water and hot water.
It reserves the interface to adopt LoRa module with modulation technology to send and receive data wirelessly, which is a wireless remote module with features of ultra-small size, ultra-low power consumption, superior performance and long-range transmission distance. The RF chip of the module is based on the spread spectrum frequency hopping technology and has the characteristics of high anti-interference and high reliability. The stability, anti-interference ability and receiving sensitivity greatly exceed the existing modulation technologies such as GFSK, which solves the traditional design that can’t take into account the distance, interference and power consumption. It is the best choice for long distance transmission and reliability-critical applications.
Function&Feature
| Meter can realize long-range wireless wake-up, real-time response PC processing instructions. |
| It can achieve a variety of forms of sampling, such as pulse with high accuracy, etc. |
| All the Materials in contact with water, consciously selected by the known resistance to corrosion. |
| Cold water meter under current standard for lower than 30℃(T30), but it can be used safely in water temperature up to 50℃(T50). |
| The indicator register is of 5 Rollers and 4 Pointers; the register with 7 Rollers and 2 Pointers as option. |
| The Impeller is the only moving parts in contact with water permitting the most reliable. |
| The inlet filter at the inlet of the meter body permits cleaning it without breaking the metrological seal. |
| The conception of the Magnetic Protection to against the external influences. |
| Non Return Valve to avoid the reserve flow Rate(AS OPTION). |
Main Parameters
| Item | Description |
|---|---|
| Standards | GB/T 778.1-3-2007 and CJ/T 133-2012 |
| Temperature level | Cold water meter: T50(0.1℃to 50℃)
Hot water meter: T50(0.1℃to 50℃) |
| Dial type | Dry or wet type as per requirement |
| Accuracy | Class B |
| Level of EMC | E1 |
| Level of upstream flow field sensitivity | U10 |
| Level of downstream flow field sensitivity | U5 |
| Dimension | DN15: 165x94x107.5mm
DN20：190x94x106mm DN25：260x98x117.5mm |
| Connecting | DN15: G3/4B
DN20: G1B DN15: G5/4B |
| Q3/Q1 | DN15: 160
DN20: 160 DN15: 160 |
| Life span | 10 years |
| Relative humidity | 0~95% |
