The KMW01 is an STS (Standard Transfer Specification) compliant electronic valve controlled water meter. It is compatible with both velocity and volumetric type water meters that comply with OIML R49 and ISO 4064 standards and conforms to the STS standard protocol. This makes it an ideal domestic water meter for revenue collection and consumer management.
General
| Application | - | Pre-paid Mechanical Water Meter |
| Ambient temperature | °C | +5 ... +50 |
| Storage temperature | °C | +5 ... +55 | max. –20…+85 |
| Humidity | % | 90 maximum |
| Battery supply | - | 3.6 VDC |
| Battery lifetime | - | up to 8 years |
| Numerical keypad | | 20 digit token for recharge input |
| Absolute temperature range | °C | +1 to +50 |
| Protection class | - | IP67 |
| Dynamic range (Qi/Qp) | - | 1:100 |
| Mounting position flow sensor | - | Any position |
Display
| Display indication | LCD-8 digit + special characters |
| Units | m³, °C, m³/h* |
| Total values | 99,999 |
| Values displayed (main loop) | Total Purchased - Total Volume - Purchase remaining
Special functions: Total consumption counter - Total recharge counter -
Current recharge balance - Over draft counter - Over draft limit - Warning limit - Last recharged balance |
Flow Sensor Technical Data
| Meteorological parameters |
| DN | mm | 15 | 20 | 25 |
| Size | Inch | 1/2” | 3/4” | 1” |
| Q4 Overload flow | m³/h | 3.125 | 5 | 7.875 |
| Q3 Permanent flow | m³/h | 2.5 | 4 | 6.3 |
| R80 | Q2 | m³h | 0.05 | 0.08 | 0.126 |
| Q3/Q1 | Q1 | m³/h | 0.031 | 0.05 | 0.079 |
| R100 | Q2 | m³/h | 0.04 | 0.064 | 0.1 |
| Q3/Q1 | Q1 | m³/h | 0.025 | 0.04 | 0.063 |
| R125 | Q2 | m³/h | 0.032 | 0.051 | 0.081 |
| Q3/Q1 | Q1 | m³/h | 0.02 | 0.032 | 0.05 |
| Max pressure | Bar | 16 |
| Pressure loss | | 0.63(as complete unit) |
| Max temperature | °C | 50 |
| Max reading | m³ | 99999 |
| Max permissible error(MPE) | % | Q1≤Q≤Q2: MPE
±5% = Q2≤Q≤Q4: MPE= ±2% |
Dimensions
| Nominal size | Width | Length | Height |
| mm | W | L | H |
| 15 | 99 | 165 | 104 |
| 20 | 9 | 195 | 106 |
| 25 | 103 | 225 | 114 |
