RHF1S052

Wireless LoRaWAN Water meter with Valve control

RHF1S052 is a LoRaWAN Smart water meter designed by RisingHF. It supports dual- input pulse counter to achieve water meter reading.

RHF1S052 Smart water meter sense meter reading real time, and uplink to LoRaWan server periodically. It also support reading the history data via the downlink command.
The sensor with local data storage offered a backup support for the meter reading in
data management which offered an alternative mean for the database server to
collect the data.

RHF1S052 is designed for Cold /hot/warm water meter which has built-in motor engine to support Valve control and work in LoRaWAN class A or B, to improve the downlink control respond time.

Applications

Smart water meter
Valve control
Pulse counting

Features

Radio Power up to 21dBm, Receiver sensitivity Down to -137dBm@SF12.
Support Global LoRaWAN standard，easy to plug and
Internal antenna, 0dBi Peak
Support dual battery power supply, one of them will be a backup and switched automatically if the main battery power down. More safe power
Dual- input pulse counter to achieve water
Strong magnetic field detect and alarm enabled for abnormal
Accumulated water metering data uplink periodically, period time can be configured, battery capacity will be reported together with water metering
Support downlink read history accumulated water metering
Support downlink accumulated water metering data
Support downlink valve control, better response time via Class
History accumulated metering data stored locally to enable backup data
Manual trigger the metering data uplink for field test and
Optimized power consumption design, battery life time 10 year for RHF1S051, 8 year for RHF1S052 typical use
Operation temperature range: -20 to +85℃.

Specifications:

Water medium temperature: 1~50℃
Dry-dial water meter, with no condensation problem
Normal Flow rate Q3: 5m3/h
Flow ratio Q3/Q1: 100
Accuracy: Class2, ≤5% (Q1~Q2), ≤2% (Q2~Q4)
Built-in ball valve for controlling open or close
Dual Pulse counter, magnetic
Operation pressure: ≤6Mpa
Ingress protection: IP68
Installation: horizontal
Global LoRaWAN® Standard, easy to deploy: ClassA and Class
LoRa communication, long range of
Automatic time synchronization with Server
Support periodical Metering data report by uplink
Support valve control by downlink to Open/Close water
High security, Real time device status and alert report by uplink
Historical metering data is available as a backup in need.
Low power consumption, typical 8 years battery life

LoRaWAN parameter

Frequency plan	LoRaWAN regional optional: CN470, EU868, ID920, AS923, AU915, US915 ( Requested by order
LoRaWAN Protocol	1.0.3
LoRaWAN Class	Class B (Class A compatibility)
LoRaWAN Activation	OTAA

Operation conditions

Temperature

Ambient temperature: 0.1~85℃

Water medium temperature: 0.1~50℃

Supply voltage

built-in Battery inside, 1.8v~3.6v

Power consumption	Sleep current 12uA, LoRa TX maximum 100mA, LoRa RX 6mA
Battery life time*	Typical 8 years

Note: * typical use case:

RHF1S052 LoRaWAN transmit water meter data every hour, battery type CR26500

Mechanical Specifications:

Dimension	165mm x 86mm x 132.3mm
Weight	About 1.55kg
Pipe Size	DN15

Water meter fundamental parameter

Metering accuracy	Class 2, accuracy From Q1 inclusive up to but excluding Q2 is ± 5%, Above Q2 is ± 2%
Water pressure	≤1.6MPa
Pipe diameter	DN15 inner pipe 15mm
Q4 max rate flow	3.125 m³/h
Q3 normal rate flow	2.5 m³/h
Q2 transition rate flow	0.04 m³/h
Q1 minimal rate flow	0.025 m³/h
Q3/Q1	100
IP grade	IP68
Metering reading in dial register	0.0000~99999 m³
Digital sensor metering reading range	0~FFFFFFFF (hexadecimal), Unit: litre (L) I.e. 0~4294967 m³

Datasheet: RHF1S052 Datasheet.pdf

Documents: RHF1S052 user guide

Documents: RHF1S052 Product specification

Documents: RHF1S052 Payload

Documents: Payload example explain

RHF1S052 - Wireless LoRaWAN Water meter with Valve control