SMART NOC-622A Muti-jet RFID Card Prepaid Water Meter

SMART NOC-622A Muti-jet RFID Card Prepaid Water Meter

IP68 Waterproof IoT Step Tariff Prepaid Water Meter with Optional LoRa RF Communication

NOC-622A Multi-jet RFID Card Prepaid Water Meter is an STS (Standard Transfer Specification) compliant, electronic valve controlled prepayment water meter. It adopts Philips Mifare S70 card for prepayment and bi-directional communication. The brass body base meter has been proven by millions of service connections. Excellent anti-tamper features like magnetic field protection help utilities for revenue water protection and consumer management.

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Basic Functionality

  • Prepayment: STS standard, recharge by smart RFID card
  • Low credit alarm: alarm value can be set by inputting corresponding TOKEN
  • Prepaid and post-paid switch: meter can switch between prepaid mode and post-paid mode
  • Non-return valve: inside for preventing back-flow
  • Anti-tamper: meter automatically closes the valve after detection of magnetic field and open cover event
  • Step tariff: can be set by management card
  • Overdraft collection: non-revenue water (overdraft) can be collected day by day or month by month
  • Communication: available with AMI system through LoRa RF or Bluetooth 4.0 on request
  • Information inquiry: consumer can check credit remain, total purchased and total credit by LCD display

Features

Multi-jet dry dial register construction
STS Standard compliant
Real-Time clock (RTC)
Low power consumption
8 years battery life
Pre-programmable low credit warning
Recharge by smart RFID card
Brass / plastic meter body on request
Step tariff and debt collection setting
LoRa RF communication (optional)
Non-return valve preventing back-flow
Electronic valve control
Magnetic field protection anti-tamper
LCD display for information inquiry

Specifications

Model NOC-622A
Nominal size DN15 (1/2") / DN20 (3/4") / DN25 (1")
Accuracy class R100
Overload flow rate (Q4) 3.13 m³/h (DN15) / 5 m³/h (DN20) / 7.87 m³/h (DN25)
Permanent flow rate (Q3) 2.5 m³/h (DN15) / 4 m³/h (DN20) / 6.3 m³/h (DN25)
Transitional flow rate (Q2) 0.04 m³/h (DN15) / 0.064 m³/h (DN20) / 0.1 m³/h (DN25)
Minimum flow rate (Q1) 0.025 m³/h (DN15) / 0.04 m³/h (DN20) / 0.063 m³/h (DN25)
Ratio (R) Q3/Q1 = 100
Maximum working pressure 16 Bar (1.6 MPa)
Maximum pressure loss 0.6 Bar (0.06 MPa)
Maximum reading 99,999 m³
Max temperature 50°C
Max permissible error (low) Q1 ≤ Q ≤ Q2: ±5%
Max permissible error (high) Q2 ≤ Q ≤ Q4: ±2%
Length (L) 165/190mm (DN15) / 190mm (DN20) / 225/260mm (DN25)
Width (W) 99mm (DN15) / 99mm (DN20) / 103mm (DN25)
Height (H) 104mm (DN15) / 106mm (DN20) / 114mm (DN25)
Connecting thread G3/4B (DN15) / G1B (DN20) / G1-1/4B (DN25)
Communication LoRa RF or Bluetooth 4.0 (optional)
Card type Philips Mifare S79/S70 card
Card dimension 86×55×4mm
Card protection class IP54
Card frequency 2.44GHz / M1 card 13.56MHz
Card communication speed 1Mbit/s / M1 106KBPS
Signal modulation GFSK
Card working life >5 years
Operating temperature -20°C to +50°C