Multi-flow meter dry type (valve control) water meter

Multi-flow dry valve-controlled water meter is mainly a water inlet direction, through which water flows into the water meter movement and scours the impeller of the water meter, thus obtaining a kind of water meter for measurement. The counter adopts dry counter, which can keep clear reading for a long time. Choose high-quality materials, reliable performance, small initial flow, high measurement accuracy, beautiful and durable appearance; Magnetic sensor is adopted, which has stable performance and high reliability.

  • Model: HKT-WM10
  • Brand: HKT
  • Size:
  • Application:
  • Packing way: Carton box
  • Warranty: 1 year

Product Specification

Multi-flow dry valve-controlled water meter is mainly a water inlet direction, through which water flows into the water meter movement and scours the impeller of the water meter, thus obtaining a kind of water meter for measurement.

The counter adopts dry counter, which can keep clear reading for a long time. Choose high-quality materials, reliable performance, small initial flow, high measurement accuracy, beautiful and durable appearance; Magnetic sensor is adopted, which has stable performance and high reliability.

However, it also has disadvantages. Because the stress points of a stream of water are relatively concentrated, the impeller of the water meter will be worn to some extent after long-term use, thus affecting the measurement and service life of the water meter.

Implementation standard: GB/T 778-2018 "Drinking Cold Water Meter and Hot Water Meter" CJ/T 535-2018 "Internet of Things Water Meter"


Specification

Caliber

DN15

DN20

DN25

Minimum Flow (Q1)

0.031

0.05

0.079

Boundary Flow (Q2)

0.05

0.08

0.126

Maximum Flow (Q3)

2.5

4

6.3

Nominal Flow (Q4)

3.1

5

7.9

Range Ratio = (Q3/Q1)

80

Maximum allowable error

Q3 ± 2%, Q2 ± 2%, Q1 ± 5%

Accuracy grade

Class B

Working pressure

1. 6MPa

Pressure loss

0. 1MPa

Level of protection

IP65

Working water temperature

0 ~ 30

Communication mode

Lorawan/NB/GPRS/RS485

Power supply

3.0 V

Outline Dimensions




Weight






Working Principle

The working principle of the rotor-type multi-flow dry valve-controlled water meter is that the water flow tangentially impacts the impeller from the water inlet of the watch case to make it rotate, and then continuously records the number of revolutions of the impeller through the gear reduction mechanism, thus recording the cumulative flow through the water meter.


Function List


Serial Number

Functions

Comments

1

Metering function

Accumulated flow of real-time Hall counter

2

Water metering data history storage local

1. For the latest 90 days, the measurement data is stored every hour

2. The latest 180 days, the measurement data is stored every day

3. Monthly storage of measurement data in the latest year

3

Power supply

1. Battery powered

2. External power supply

4

Main battery capacity level indication

The suffix of that current battery capacity level is report to the server in each metering data message uplink report

5

LED indication

Communication events; Screen Cutting Event

6

Manual triggering (triggering varies according to different models)

Button triggers an escalation event

Magnet triggers report event

Trigger 1 second switch screen

Trigger 2 seconds to report data

Trigger more than 9 seconds to restart the device

7

Wireless technology

Lorawan/NB/GPRS

8

External Interface

RS485/Mbus

9

Periodic reporting

1 The default period is 24 hours

Latest cumulative measurement data

Water meter status: valve status/power supply

Battery Capacity Level

Downlink Signal Strength Indication

10

Timed reporting

1 Fixed time (for example, 23:00, also configurable) triggers metering data reports every day, and the message payload is the same as the periodic report

Latest cumulative measurement data

Water meter status: valve status/power supply

Battery Capacity Level

5LoRaWAN Downlink Signal Strength Indication RSSI/SNR

11

Alarm Message Uplink Report

Battery Capacity Low Level Alarm

Backup Battery Switch Alarm

Valve fault alarm

12

Screen digital display

1 Display content: current reading, electric quantity, balance and valve status (default valve opening status of non-valve controlled water meter)

2 Display mode: normally bright (low power consumption screen)

13

Mode of transport

In the transportation mode, log is closed, communication is closed, pulse is not metered, and the operation with minimum power consumption is maintained

14

Antenna (Nb/Lorawan/GPRS)

Built-in antenna (spring/soft antenna)

External antenna (chuck antenna)

15

Infrared Configuration (Optional, Default None)

Infrared Setting/Read Table Parameters

Infrared Update Program

16

Communication mode

Supported Band


M66 (GPRS Communications)

850/900/1800/1900MHz


BC26 (NB Communications)

B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66


BC35G (NB Communications)

B1 @ H-FDD: 2100 MHz

B3 @ H-FDD: 1800 MHz

B8 @ H-FDD: 900 MHz

B5 @ H-FDD: 850 MHz

B20 @ H-FDD: 800 MHz

B28 @ H-FDD: 700 MHz


BG96 (NB/GPRS/CATM Communications)

Cat M1/Cat NB1:

LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/

B19/B20/B26/B28

LTE TDD: B39 (For Cat M1 Only)

EGPRS:

850/900/1800/1900MHz

BG96-M

Cat M1:

LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/

B19/B20/B26/B28

LTE TDD: B39


BC66 (NB Communications)

B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/

B25/B26*/B28/B66


Lorawan Newsletter

CLASSA, CLASSB and CLASSC modes are supported, and the supported frequency bands are shown in the attachment


RS485 communication

Four lines: red +, black-, yellow A, blue B

Product structure and size

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