KARAT-523 is the water meter employs the highly accurate ultrasonic technology. Every drop is measured due to the dynamic range of 250:1 reducing loss. Contrary to mechanical water meters Karat-523 has no moving parts, is magnet-resistant and maintains its pinpoint accuracy throughout its entire lifetime.
KARAT-523 is comes with option of being read remotely using LoRaWAN or M-Bus. KARAT -523 is equipped by communication module that allows for safe and easy remote reading without any add-on devices.
Water meter is made of eco-friendly and durable materials approved for drinking water.
Technical data
| Temperature range (2 in 1, for cold and hot water) | 0 °C…70 °C |
| Ambient temperature | 5…50 °C (indoors). Max. 30 °C for optimum battery lifetime |
| Protection class | IP 65 |
| Ambient temperature | 5…50 °C |
| Environmental class | Indoors (closed position), non-condensing |
| Medium temperatures | 0…70 °C |
| Medium in flow sensor | water |
| Storage temperature | 0…50 °C |
| Pressure stage | PN16 |
| Weight | 0.6 kg |
| Meter types Q₃ | 1.6 m³/h, 2.5 m³/h |
| Type name |
Nominal flow, m³/h [Q3] |
Maximum flow, m³/h [Q4 ] |
Minimum flow, l/h [Q1] |
Min. cut-off, l/h |
Threaded connection on meter |
Length |
| 523-15-1.6-IP-3I | 1.6 | 2 | 6 | 3 | G¾ | 110 |
| 523-15-1.6-IP-3I-М-Bus | 1.6 | 2 | 6 | 3 | G¾ | 110 |
| 523-15-1.6-IP-3I-LW | 1.6 | 2 | 6 | 3 | G¾ | 110 |
| 523-15-1.6-OP-3I | 1.6 | 2 | 6 | 3 | G¾ | 110 |
| 523-15-1.6-OP-3I-М-Bus | 1.6 | 2 | 6 | 3 | G¾ | 110 |
| 523-15-1.6-OP-3I-LW | 1.6 | 2 | 6 | 3 | G¾ | 110 |
| 523-20-2.5-IP-3I | 2.5 | 3.1 | 10 | 5 | G1 | 130 |
| 523-20-2.5-IP-3I-М-Bus | 2.5 | 3.1 | 10 | 5 | G1 | 130 |
| 523-20-2.5-IP-3I-LW | 2.5 | 3.1 | 10 | 5 | G1 | 130 |
| 523-20-2.5-OP-3I | 2.5 | 3.1 | 10 | 5 | G1 | 130 |
| 523-20-2.5-OP-3I-М-Bus | 2.5 | 3.1 | 10 | 5 | G1 | 130 |
| 523-20-2.5-OP-3I-LW | 2.5 | 3.1 | 10 | 5 | G1 | 130 |
Electrical data
| Calculator data | |||
| Data logger | 1440 hours, 460 days, 144 months, 256 events | ||
| Display | LCD – 8 digits | ||
| Measurement accuracy: | Fulfills OIML R49 Class 2 | ||
| Data communication | |||
| Optical communication IRDA (standard) | Modbus RTU protocol,communication speed is 57600 Baud | ||
| M-Bus (option) | M-Bus protocols,communication speed is 2400 Baud | ||
| LoRaWAN 868 MHz (option) | LoRaWAN protocol, communication speed from 300 to 50000 baud. | ||
| Battery | |||
| Lithium cell |
3.6 VDC |
||
| Battery lifetime | 6/11 years* | ||
| *Frequent data communication and high ambient temperature reduce the battery lifetime. Extended battery is supplied optionally. | |||
Material
| Flow sensor case | CW617N brass |
| Calculator case | ABS; РС; PPS, 65% Mineral / Glass Reinforced; TPE; POM |
| Cables | PVC |
Modification
| KARAT | -523 | -XX | -XX | -XX | |
| Type | 223 | ||||
| Connection | |||||
| DN15 (G¾) | 15 | ||||
| DN20 (G1) | 20 | ||||
| Flow sensor | |||||
| 1.5 m³/h | 1.5 | ||||
| 2.5 m³/h | 2.5 | ||||
| Communication | |||||
| No communication option | - | ||||
| M-Bus | M-Bus | ||||
| LoRaWAN | LW | ||||
| Pulse output | Pulse | ||||
Price
| Name | DN | Description | Price, € |
|---|---|---|---|
| Water meter КАRАТ-523 | 15 | Qn=1,6m³/h; Tmax = 70ºC | 61.7 |
| Water meter КАRАТ-523 | 20 | Qn=2,5m³/h; Tmax = 70ºC | 63.8 |
| Water meter КАRАТ-523 | 15 | Qn=1,6m³/h; Tmax =70ºC; with pulse output | 67.4 |
| Water meter КАRАТ-523 | 20 | Qn=2,5m³/h; Tmax =70ºC; with pulse output | 69.5 |
| Water meter КАRАТ-523 | 15 | Qn=1,6m³/h; Tmax =70ºC; LoRaWAN | 72.1 |
| Water meter КАRАТ-523 | 20 | Qn=2,5m³/h; Tmax =70ºC; LoRaWAN | 74.2 |