Milesight EM500 Series Outdoor Environment Monitoring Sensor User Guide

4.1.1 NFC Configuration

1. Download and install the Milesight ToolBox App from Google Play or Apple App Store.
2. Enable NFC on your smartphone and launch the Milesight ToolBox App.
3. Attach your smartphone to the device's NFC area. Tap the 'NFC Read' button to read device information. You can then read and configure the device by tapping 'Read/Write device' on the App. For security, change the default password (123456) during the first configuration.

Notes:
4) Ensure your smartphone's NFC area is correctly positioned. It is recommended to remove the phone case.
5) If the smartphone fails to read/write configurations via NFC, move the phone away and try again.
6) EM500 series can also be configured using a dedicated NFC reader available from Milesight IoT.

4.1.2 USB Configuration

1. Download the ToolBox software from the Milesight official website.
2. Remove the enclosure of the EM500 transceiver and connect the device to a computer via a Type-C port.
3. Open the ToolBox software, select 'General' as the type, and enter the password (default: 123456) to log in.
4. After logging in, you can turn devices on/off and modify other settings. The software displays device status, serial number, firmware version, and sensor readings like Temperature, Humidity, and Battery level.

4.4.1 Data Collection Settings

Enable or disable data collection and upload for EM500-CO2 and EM500-SMTC sensors. Options include CO2, Barometric Pressure, Temperature, and Humidity.

4.4.2 Calibration Settings

Numerical Calibration: ToolBox supports numerical calibration for all items. Navigate to 'Device Settings > Basic' or 'Device > Settings > Calibration Settings' to input calibration values.

CO2 Calibration: For EM500-CO2, additional methods are available:

• Barometric Pressure Calibration: Works only when the barometric sensor is enabled.
• Manual Calibration: Place the device outdoors for 10 minutes and click the button to calibrate the CO2 value.
• Factory Calibration Restored: Resets manual calibration to factory settings.

Abnormal Value Prevention: For EM500-PT100/SWL/UDL, this feature helps ensure accurate results by discarding and remeasuring values outside a defined range (e.g., ±20% of the previous value).

4.4.3 Threshold Settings

Enable threshold settings to trigger alarms when collected values exceed preset thresholds. The device sends an alarm when a value crosses the threshold and returns to normal.

EM500-PT100/CO2/SMTC sensors support alarms for temperature mutation reaching threshold values.

4.4.4 Data Storage

EM500 series can store up to 1000 data records locally and export them via ToolBox App or software, even without network connectivity.

1. Sync device time via 'Status' in ToolBox software or 'Device > Status' in ToolBox App.
2. Enable the data storage feature.
3. Go to 'Maintenance > Backup and Reset' (software) or 'Device > Maintenance' (app), click 'Export', select the date range, and click 'Save'.

Note: ToolBox App can export up to 14 days of data. Use ToolBox software for longer data exports.

Click 'Data Cleaning' to clear stored data if necessary.

4.4.5 Data Retransmission

EM500 series supports data retransmission to ensure data integrity even during network outages. Two methods exist:

• Network server sends downlink commands to request historical data for a specific time range (refer to EM500 Series Communication Protocol).
• When the network is down and no response is received from LinkCheckReq MAC packets, the device records the disconnection time and re-transmits lost data upon reconnection.

Steps for data retransmission:

1. Enable data storage and data retransmission features.
2. Enable rejoin mode and set the number of packets sent. The device will send LinkCheckReq MAC packets to check network connectivity. If no response after 8+1 attempts, the join status changes to de-active, and a data lost time point is recorded.
3. After network reconnection, the device sends lost data according to the reporting interval.

Notes:
1) If the device is rebooted during retransmission, all data will be resent after reconnection.
2) If the network disconnects again during retransmission, only the latest disconnection data is sent.
3) Retransmission data format starts with "20ce"; refer to EM500 Series Communication Protocol.
4) Data retransmission increases uplinks and reduces battery life.

4.5.1 Upgrade

ToolBox Software:

1. Download firmware from the Milesight official website to your PC.
2. Navigate to 'Maintenance > Upgrade', click 'Browse' to select the firmware file, and upgrade the device.

ToolBox App:

1. Download firmware from the Milesight official website to your smartphone.
2. Open the ToolBox App, click 'Browse' to select the firmware file, and upgrade the device.

Notes:
1) Operations on ToolBox are not supported during the upgrade.
2) Only the Android version of ToolBox supports the upgrade feature.

4.5.2 Backup

EM500 devices support configuration backup for bulk configuration. Backup is restricted to devices of the same model and LoRaWAN® frequency band.

1. On the App, go to the 'Template' page and save current settings as a template. Template files can also be edited.
2. Select a saved template file and click 'Write', then attach it to another device to apply the configuration.

Note: Slide template items left to edit or delete. Click a template to edit its configurations.

4.5.3 Reset to Factory Default

Choose one of the following methods to reset the device:

• Via Hardware: Hold the power button (internal) for more than 10 seconds.
• Via ToolBox Software: Go to 'Maintenance > Backup and Reset' and click 'Reset'.
• Via ToolBox App: Go to 'Device > Maintenance', click 'Reset', then attach your smartphone with NFC to the device to complete the reset.

5.1 EM500 Transceiver Installation

The EM500 transceiver supports wall, pole, and DIN rail mounting. Ensure the mounting bracket is securely attached to the device via screws before installation.

Wall Mounting:

1. Drill two holes on the wall according to the mounting bracket's position and insert wall plugs.
2. Fix the mounting bracket to the wall using screws.
3. Mount the device onto the bracket and secure it with two fixing screws.

Pole Mounting:

Straighten the hose clamp, slide it through the rectangular holes in the mounting bracket, wrap it around the pole, and tighten the locking mechanism clockwise with a screwdriver.

DIN Rail Mounting:

Use two M3 x 6 flat head Phillips screws to fix the mount clip to the bracket, then hang the device onto the DIN rail. The DIN rail width is 3.5 cm.

5.2 EM500-CO2 Sensor Installation

Follow these guidelines for proper EM500-CO2 installation:

• Mount the CO2 sensor 12-18 inches above the floor, as CO2 is heavier than air and will settle downwards.
• Consider the room layout for installation. Enclosed or varied spaces may benefit from installing an additional sensor.

5.3 EM500-LGT Sensor Installation

The light sensor can be mounted on a wall or flat surface. Ensure the sensor's round area is always on top and oriented towards the sun for accurate readings.

5.3 EM500-PP Sensor Installation

For proper EM500-PP installation, consider the following:

• Select an installation position that reflects the actual pressure situation. Install the sensor in a straight-flowing section of the pipe, avoiding bends, splits, or dead corners where vortices may form.
• Ensure the pressure sensor is not too close to valves or pumps, as their operation can impact the diaphragm and cause damage.
• Install the sensor in an environment with low vibration.
• For high-pressure hydraulic or liquid equipment, install a damper to prevent pressure spikes or surges.
• In freezing conditions, use anti-freezing measures to prevent liquid expansion due to icing, which can damage the sensor.
• When measuring steam or high-temperature gas, use a condenser (e.g., buffer tube/coil) and ensure the operating temperature does not exceed the sensor's limit.
• Do not insert foreign objects into the pressure diaphragm, as this can cause permanent damage.
• Clean the sensor periodically, especially in corrosive or dusty environments.

5.4 EM500-SMT/SMTC Sensor Installation

Follow these guidelines for proper EM500-SMT/SMTC installation:

• Abnormal data may occur if sensor prongs are exposed to air.
• Foreign materials (sticks, bark, roots) stuck between prongs can affect readings. Air gaps or excessive soil compaction around the sensor also influence results.
• Do not install the sensor near large metal objects.
• Be careful when inserting the sensor into dense soil to avoid breaking prongs due to sideways force.
• In lightning-prone areas, ensure proper lightning protection is in place.
• When removing the sensor from soil, do not pull by the cable, as this can damage internal connections and render the sensor unusable.

5.5 EM500-SWL Sensor Installation

Lower the sensor via cable into tanks or ponds until it is near the bottom. Avoid hitting the bottom hard or touching objects like sand or sludge, which can damage the sensor.

Notes:
Ensure the gas holes of the SWL sensor are not blocked during mounting or use.
To prevent separation of the SWL sensor and transceiver due to water shock or gravity, fix the sensor cable with a bracket or wrap it around the pole.

If used in wells or turbulent environments, install a protective pipe with holes at different heights to allow water flow and remove hydrodynamic pressure. The pipe should not be bent.

5.6 EM500-UDL Sensor Installation

When installing the EM500-UDL, keep the following in mind:

• The device must be positioned vertically on the object, ensuring a clear path to it.
• Place the device more than 30cm away from side-walls and free from internal obstructions that could block the ultrasonic signal (Position 1). Position 2 is ideal.
• Avoid placing the device in the center of arched or circular container tops, as this can cause multiple echoes (Position 3).
• Do not place the device above the container inlet orifice (Position 4).