Combined meter
WPV with GWFcoder® MP
Product categories
Combined meter with GWFcoder® MP counter for cold water up to 50 °C
Water
Drinking Water
Mechanical
Smart City
Your benefits
- Revolutionary multiprotocol interface (IEC and M-Bus in one meter):
Investment protection due to meter interoperability - Transmission of the actual register reading:
No data loss and therefore secure consumption billing - No battery limiting operating time:
Maintenance-free - Measurement from very low to very high flow rates:
Improved efficiency
Applications
- Measurement of high, strongly fluctuating flow rates, e.g.:
- Commercial and industrial installations
- School and sports complexes
- Apartment blocks
- Hotels - Specified pipe sizing for fire-fighting water demand
- Automated mobile or fixed network readout of billing-relevant data
- Wired or wireless remote readout of hard-to-access metering points, e.g. pits
Options
- High-resolution pulse transmitter HRI
Documentation: HRI - EPe10213 - Radio module RCM® split
Documentation: RCM® - EPe40232 - Radio module RCM®-LRW...
Documentation: RCM®-LRW... - EPe40261
Properties
- Achievement of the largest known measuring range with defined low error limits
- Horizontal installation position
- No inlet straight pipe section required
- Maximum operating pressure PN 16 bar
- Temperature up to 50 °C
- Hydrodynamic vane balancing of the main meter
- Optimal corrosion protection by powder coating
- Starting flow approx. 8 l/h
- Spring-loaded changeover valve with low pressure loss
- Minimum pressure of 0.5 bar upstream of the meter required
- SVGW certification
Conformity according to the European Measuring Instruments Directive (MID)- Flood-proof main and secondary registers (IP68) with multiprotocol interface (MP), 5 m cable and one interface each for an HRI pulse transmitter
- M-Bus standard load: 2 loads (3 mA)
Product information
Installation positions
| Pipeline: | horizontal |  |
| Head of meter | upwards |  |
Dimension Diagram
Technical Data
| Nominal diameter | DN | mm | 150 |
| Nominal diameter secondary meter | DN | mm | 40 |
| Nominal pressure | PN | bar | 16 |
| Permanent flow rate | Q3 | m3/h | 400 |
| Maximum flow rate (1x24h) | Q4 | m3/h | 600 |
| Transitional flow rate ±2% | Q2 | m3/h | 0,15 |
| Minimum flow rate +/- 5% | Q1 | m3/h | 0,035 |
| Changeover at increasing flow rate | m3/h | 8,3 | |
| Changeover at decreasing flow rate | m3/h | 4,7 | |
| Temperature | max.°C | 50 | |
| Dimensions and weights | |||
|---|---|---|---|
| Length | L | mm | 500 |
| Hight | H | mm | 214 |
| Hight | h | mm | 135 |
| Measuring insert removal height | g | mm | 393 |
| Width | B | mm | 275 |
| Width | b | mm | 145 |
| Meter weights | approx. kg | 60 | |
| MID approval data | |||
|---|---|---|---|
| Permanent flow rate | Q3 | m3/h | 250 |
| Temperature | max.°C | 30 | |
| Measuring range | R2500 | ||
Materials
| Housing primary meter: | Grey cast iron |
| Housing secondary meter: | Brass |
| Measuring insert primary and secondary meter: | Plastic |
| Spring-loaded changeover valve: | Plastic / Stainless steel |
Measuring error curve
Pressure lost curve
Commissioning note
During commissioning, the pipes must be filled with water slowly (ensure slow venting).
Pulse value of the HRI pulse transmitter
| Meter size | DN 150 Impuls = ...liters |
|---|---|
| WPV-MS primary meter | 1000 10000 |
| WPV-MS secondary meter | 100 1000 |
Bestellangabe
| Direction of flow | Position of secondary meter |
|---|---|
| left-right | ...in flow direction right |
| right-left | ...in flow direction left |
Register dials
GWFcoder® technology
In the GWFcoder® system, the individual rollers of the mechanical counter are scanned optoelectronically. The asymmetrically arranged slots of varying lengths in the number rollers are scanned for their position using 5 light barriers (optical fiber transmitters and receivers). The light barriers are implemented with phototransistors, LEDs, and optical fibers, which are all scanned and evaluated in sequence. The precisely defined position of each individual number roller is coded as an absolute number roller position and read out as part of the protocol via the GWFcoder® interface. This operating principle is patented by GWF. Compared to a meter with a pulse output, the GWFcoder® interface has an incomparably higher information content and increases readout reliability. A GWFcoder® meter does not require a battery, which means that existing audit cycles are not affected. The energy for the readout is supplied by the readout device.
In addition, products with the suffix “MP” (multi-protocol) offer the flexibility to choose between wall reading (inductive or CL), wired M-Bus, or radio reading, and to put the system into operation quickly and easily via “plug & play.”
GWFcoder*®** data set
SCR: IEC 62056-21 Mode A (IEC 1107)
Medium: Water
Absolute register reading: 123654 m3
Serial number: 43215678
Meter size: DN 50
M-Bus: EN 13757 ECO: EN 13757-3
Commissioning note
When starting up, it is essential to fill the pipes slowly with water (slow venting).
Application example
Radio reading
Meters with GWFcoder® counters are read automatically using mobile infrastructure (e.g., RCM® radio module and MEx).
