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Daviteq Industrial Ambient Temperature Sensor
LoRaWAN
Sigfox
Sub-GHz
NB-IoT

Daviteq Industrial Ambient Temperature Sensor

SATE

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1. Introduction

ATE is an industrial-grade ambient temperature sensor designed for use in various industries, including food and beverage, warehousing, manufacturing, and agriculture. It utilizes a digital temperature sensor to deliver highly accurate measurements within a range of -35∼70℃.

ATE could be integrated into the wireless transmitter from Daviteq, such as Sub-GHz WS433, LoRaWAN WSLRW, and Sigfox WSSFC, to build the complete wireless temperature sensor.


Specifications

Sensor: Digital type, factory calibrated, IP68, immersible to ice-water for quick validation

Measuring range: -35∼70℃

Accuracy & Resolution" < ±0.5℃, 0.125℃

Sensor material: PA plastic with PVC cable

Cable length: Selectable 300mm, 500mm, 900mm

2. Principle of Operation

The digital temperature sensor includes the IC temperature sensor and communication module. The IC will measure the temperature and convert to digital signal to sent out via communication module

3. Calibration

To calibrate a complete temperature sensor, follow these steps:


  1. Isolate the sensor from the process.

  2. Immerse the sensor fully into a dry-well or bath that can cover the required temperature range.

  3. Change CONSTANT_A = 1 and CONSTANT_B =0 on Daviteq temperature sensor's memory by offline tool or downlink

  4. Adjust the temperature of the bath or dry-well to each of the test points. At each test point, record the readings of the standard temperature and sensor's temperature. Record 2 test points (calibrated minimum temperature point and calibrated maximum temperature point)

  5. Calculate CONSTANT_A and CONSTANT_B based on the standard temperature and sensor's temperature at minimum temperature point and maximum temperature point.

  6. Standard Temperature = CONSTANT_A * sensor's temperature + CONSTANT_B

  7. Change calculated CONSTANT_A and CONSTANT_B on Daviteq sensor memory by offline tool or downlink

4. Application Notes

5. Installation Notes

1. Choose the Location: Select a location where you want to measure the temperature. Ensure it's away from large electromagnetic devices or fluorescent lights to avoid interference.


2. Configure the Sensor: Use the web interface or offline tool of your monitoring device to configure the sensor. This might involve setting up alarms or thresholds for temperature readings.


3. Test the Installation: Verify that the sensor is working correctly by checking the readings on your monitoring device.

6. Troubleshooting

1. The measured value is not within the expected value

  • The sensor is drifted over time: Re-calibrate the sensor.

  • The sensor was spoiled due to some reasons. Replace the new sensor


2. HW_Error = 1

  • Loosed connection of sensor module and wireless transmitter: Check the internal wiring.

  • The sensor module got a problem: Please consult the manufacturer for a warranty or replacement.

7. Maintenance

1. Regular Inspection:

- Visual Check: Inspect the sensor for any signs of physical damage, such as cracks, corrosion, or loose connections

- Functional Check: Verify that the sensor is providing accurate readings by comparing it with a known reference

2. Cleaning:

- Surface Cleaning: Use appropriate cleaning agents and tools to remove dirt, dust, or debris from the sensor. Avoid harsh chemicals that could damage the sensor

3. Calibration:

- Regular Calibration: Calibrate the sensor periodically using a reliable reference source to maintain accuracy

- Calibration Methods: Use methods such as dry-well calibration or comparison with a reference thermometer

4. Testing:

- Performance Testing: Test the sensor's performance under different conditions to ensure it operates correctly across its entire range

- System Testing: Check the entire measurement system, including the sensor and any connected devices, to ensure overall accuracy

8. Default Configuration

This temperature sensor has the default configuration, however, those parameters can be changed. The user can change the configuration on the wireless transmitter so that the complete sensor (transducer + wireless) delivers the proper output value. Please check the Payload document for more information.

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