Mido R311W User manual

Model：R311W
WirelessWater Leak Sensor
Water Leak Sensor
User Manual
MiDo Srl
FERRARA
Via Poledrelli 21 - 44121 (Fe)
[phone]
LAURIA
Via Vico II Cairoli, 4 - 85044 (Pz)
[phone]
EMAIL
[email protected]

1
Table of Content
1. Introduction...........................................................................................................................................................................................................................................................2
2. Appearance...........................................................................................................................................................................................................................................................3
3. Main Features .......................................................................................................................................................................................................................................................3
4.Set up Instruction...................................................................................................................................................................................................................................................4
5. Data Report...........................................................................................................................................................................................................................................................4
6. Installation ............................................................................................................................................................................................................................................................7
7. Important Maintenance Instruction.......................................................................................................................................................................................................................8
8. FCC Statement......................................................................................................................................................................................................................................................8

2
1. Introduction
MiDoMet water leak sensor R311W is a LoRaWAN device compatible with LoRaWAN protocol (ClassA). When the R311W sensor detects a leak, it
will send an alarm message to the gateway. When the sensor detects no leaks, it will send a message that shows no leak to the gateway.
LoRa Wireless Technology:
LoRa is a wireless communication technology dedicated to long distance and low power consumption. Compared with other communication methods,
LoRa spread spectrum modulation method greatly increases to expand the communication distance. Widely used in long-distance, low-data wireless
communications. For example, automatic meter reading, building automation equipment, wireless security systems, industrial monitoring. Main features
include small size, low power consumption, transmission distance, anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure interoperability between devices and gateways from different
manufacturers.

3
2. Appearance
3. Main Features
Compatible with LoRaWAN
2 sections of 3V CR2450 button battery power supply
Detectable voltage and door/window status
Simple operation and setting
Protection level IP30
Compatible with LoRaWANTM Class A
Frequency hopping spread spectrum technology
Configuration parameters can be configured through third-party software platforms, data can
be read and alarms can be set via SMS text and email (optional)
Available third-party platform: Actility / ThingPark, TTN, MyDevices/Cayenne  Low
power consumption and long battery life
Water
Sensor
Water
Sensor
Indicator
(
red/green
)
Battery
Cover
Water
Sensor
Connection
Port
Water
Sensor
Connection
Port
Function
Key
Function
Key

4
4.Set up Instruction
On/Off
Power on
Insert batteries.
(users may need a flat blade screwdriver to open); insert two sections of 3V CR2450
button batteries and close the battery cover.)
Turn on
Press any function key till green and red indicator flashes once.
Turn off
(Restore to factory
setting)
Press and hold both function keys for 5 seconds till green indicator flashes for 20 times.
Power off
Remove Batteries.
Note:
1. Remove and insert the battery; the device memorizes previous on/off state by default.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor inductance and other
energy storage components.
3. Press any function key and insert batteries at the same time; it will enter engineer testing mode.
Network Joining
Never joined the network
Turn on the device to search the network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
Turn on the device to search the previous network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Fail to join the network
(when the device is on)
First two mins:wake up every 15 seconds to send request.
After two mins: enter sleeping mode and wake up every 15 minutes to send request.
Note: Suggest to remove batteries if the device is not used to save power.
Suggest to check the device verification information on the gateway with your platform server provider.
Function Key
Press and hold for 5
seconds
Restore to factory setting / Turn off
The green indicator flashes for 20 times: success
The green indicator remains off: fail
Press once The device is in the network: green indicator flashes once and sends a report
The device is not in the network: green indicator remains off
Sleeping Mode
The device is on and in
the network
Sleeping period: Min Interval.
When the reportchange exceeds setting value or the state changes: send a data report according to Min Interval.
The device is on but not in
the network
First two mins: wake up every 15 seconds to send request.
After two mins: enter sleeping mode and wake up every 15 minutes to send request.
Note: Suggest to remove batteries if the device is not used.
Suggest to check device verification on gateway.
Low Voltage Warning
Low Voltage
2.4V
5. Data Report
When the device is turned on, it will immediately send a version package.
The transmission frequency of sending version package is once every 24 hours.
Data will be reported once per hour by default setting.
Maximum time: 3600s
Minimum time: 3600s
Default reportchange:
Battery ---- 0x01 (0.1V)
R311W sensor is triggered:

5
When the R311W status changes, it will send warning report.
No water leak:0
Water leak:1
Note: The reported data is decoded by the MiDoMet LoRaWAN Application Command document and www.midosmart.com Data report
configuration and sending period are as following:
Min Interval
(Unit:second)
Max Interval
(Unit:second)
Reportable
Change
Current
Change≥
Reportable Change
Current
Change
Reportable Change
＜
Any
number
1~65535
between
Any number between
1~65535 Can not be 0. Report per Min
Interval
Report per Max
Interval
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
MaxTime MaxTime
REPORTS 2.8V REPORTS 2.7V REPORTS 2.5V
Note: MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BtteryVoltageChange value.
Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
0H
Wakes up and collects
data
REPORT 2.8V
Example#3
15th M
30th M
45th M
1H
2H
Wakes
up
and
collects data
2.8V
Does not report
Wakes up and
collects data
2.8V
Does not report
Wakes
up
and
collects data
2.8V
Does not report
Wakes up and
collects data
REPORTS
based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change2.8i.e.V BatteryVoltageChange= 0.1V.

6
MaxTime
Notes:
1) The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not collect data.
2) The data collected is compared with the last data reported. If the data change value is greater than the ReportableChange value, the device reports
according to MinTime interval. If the data variation is not greater than the last data reported, the device reports according to MaxTime interval.
3) We do not recommend to set the MinTime Interval value too low. If the MinTime Interval is too low, the device wakes up frequently and the battery will be
drained soon.
4) Whenever the device sends a report, no matter resulting from data variation, button pushed or MaxTime interval, another cycle of MinTime / MaxTime
calculation is started.
0H
15th M
30th M
45th M
1H 1H 10th M
1H 25th M
1H 40th M
1H 55th M
2H 10th M
Wakes up and
collects data
REPORTS 2.8V
Wakes
up and
collects data
2.8V
Does not
report
Wakes
up
collects data
2.7V
Does
report
and
not
Wakes up and
collects data 2.7V Does
not report
Wakes up
and collects
data 2.7V
Does
not
report
Wakes
up
collects data
2.7V
Does
report
and
not
Wakes up and
collects data
REPORTS 2.7V

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6. Installation
(1) This product does not have a waterproof function. After the screening is completed, please place it indoors.
(2) The door magnetic magnet part and the body part are installed on both sides of the door joint or the window joint, and the distance between the two
needs to be less than 2cm; the dust in the installation position of the equipment needs to be wiped clean and then affixed to the equipment.
(3)
(3) The battery installation method is shown in the figure below (battery with "+" facing outward).
Note: To install the battery, use a screwdriver or similar tool to assist in opening the battery cover.

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7. Important Maintenance Instruction
Your device is a product of superior design and craftsmanship and should be used with care. The
following suggestions will help you use the warranty service effectively.
•Keep the equipment dry. Rain, moisture, and various liquids or moisture may contain minerals
that can corrode electronic circuits. In case the device is wet, please dry it completely.
•Do not use or store in dusty or dirty areas. This can damage its detachable parts and electronic
components.
•Do not store in excessive heat. High temperatures can shorten the life of electronic devices,
destroy batteries, and deform or melt some plastic parts.
•Do not store in excessive cold place. Otherwise, when the temperature rises to normal
temperature, moisture will form inside, which will destroy the board.
•Do not throw, knock or shake the device. Rough handling of equipment can destroy internal
circuit boards and delicate structures.
•Do not wash with strong chemicals, detergents or strong detergents.
•Do not apply with paint. Smudges can block debris in detachable parts and affect normal
operation.
•Do not throw the battery into a fire to prevent the battery from exploding. Damaged batteries
may also explode.
All of the above suggestions apply equally to your device, battery and accessories. If any device is
not working properly.
Please take it to the nearest authorized service facility for repair.
8. FCC Statement
The OEM integrator has to be aware of not to providing information to end users regarding how to install or remove this RF module in the user manual of the end product.The
user manual which is provided by OEM integrators for end users must Include the following information in a prominent location.
“ To comply with FCC RF exposure compliance requirement, the antenna user for this transmitter must be installed to provide a separation distance of at least 20cm from all
persons and must not be co-located or operating in conjunction with any other antenna or transmitter .”
Label for the end product must include “Contains FCC ID :NRH-ZB-Z100B”or “A RF transmitter inside,FCC ID :NRH-ZB-Z100B”.
You are cautioned that changes or modifications not expressly approved by the party responsible for compliancecould void your authority to operate the equipment. This device
complies with Part 15 of the FCC Rules. Operation is to the following two conditions:(1)this device may not cause harmful interference and (2)this device must accept any
interference received, including interference that may cause undesired operation.
FCC RF Radiation Exposure Statement:
1This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
2.This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum
distance of 20 centimeters between the radiator and your body.
MiDo Srl
FERRARA
Via Poledrelli 21 - 44121 (Fe)
[phone]
LAURIA
Via Vico II Cairoli, 4 - 85044 (Pz)
[phone]
EMAIL
[email protected]