HAC-MLW Metering Module User Manual V1.0
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1. Overview
The HAC-MLW wireless remote meter reading system integrates acquisition,measurement,bidirectional
communication and valve control etc, and it conforms to the LORAWAN1.0.2 standard protocol which is
formulated by LoRa Alliance. The system contains wireless meter reading acquisition module HAC-MLW, gateway
LoRaWAN , LoRaWAN meter reading charging system (or we call it cloud platform).
2. Meter Module Feature
2.1. Electrical characteristics
No.
Item
Function description
1
Working frequency It’s compatible with LoRaWAN® (433~510MHz or 863~928MHz, which is
optional)
2
Maximum
transmitting power
21±1dBm (which is in accordance with the requirements of power limit in
different areas of the LoRaWAN protocol)
3
Receiving sensitivity <-136dBm
4
Working temperature -20℃
～
+70℃
5
Working voltage
+2.5V
～
+3.8V
6
Receiving current ≤9mA
7
Transmitting current ≤130mA (which is related to transmitting power)
8
Transmitting distance The maximum line of sight communication distance between the gateway and the
meter module is 15km
9
Valve electrical
parameter
+2.5V
～
+3.8V
10
Sleep current
≤15uA
11
Dimension
42.1mm*24.8mm*3.2mm
2.2
Feature Description
No.
Feature
Function Description
1
Data reporting
There are two data reporting methods.
Magnetic trigger to report data: The magnet triggers the hall components of the
meter module, and the trigger time must be greater than 2S.
Timed and active reporting: the reporting time slice is automatically allocated
according to the Device Eui of the meter module, and the data is reported every
24 hours.
2
Power management It will detect voltages of various states of metering module in real-time and
report.