Digital recorder TRE37-001

shocknetworkdata logger

Description
The TRE37 measures and records the conditions under which goods are transported, tracing shocks and variations in temperature and humidity. Each event is time-stamped. The data can be downloaded and analysed on a PC.

Operating modes

• Live/Record: Before sending the parcel, the user activates the 'record' mode. As soon as it is activated, the TRE stores the values in its memory. The recorded data can be read using RF Monitor. At the end of transport, the user stops recording and can retrieve the data from memory.
• Monitoring: Real-time monitoring applications: the TRE sends measured data to the PC in real time. If communication is not possible, the logger stores the data in memory and sends it as soon as a connection is possible. A silent mode can be used for air transport; in this case, to retrieve the recorded data it is necessary to use the 'find products in silent mode' function in the RF Monitor software.

Equipped with

• IP65 enclosure
• Internal antenna
• Power supply: 1 A Lithium battery

Sensors overview
Accelerometer: -16g to +16g on 3 axes
Temperature: -40°C to 85°C
Humidity: 0…100% RH
Brightness: ------

Shock sensor
1 accelerometer that measures on 3 axes (XYZ)
Measurement range: -16g to +16g on each axis
Minimum threshold: -1g to +1g on each axis (XYZ)
Resolution: 14 bit - 3.9 mg
Accuracy at 25°C: ±0.5g from -16g to +16g (without resonance). If the shock is too high over this range, the TRE saturates at 16g and will record the measurement.
Noise: 65 mg
Calibration: Calibration carried out at the factory by the manufacturer
Drift of accuracy: Possible drift of 10 mg/year on each axis for 4 years. Not guaranteed after 4 years.
Bandwidth: 1600 Hz

Temperature sensor
Measuring range: -40°C to 85°C
Accuracy: ±0.2°C for (0… 60°C)
Resolution: 0.015°C
Response time: <10 seconds
Long-term drift: <0.05 K / year

Humidity sensor
Measurement range: 0…100% RH
Accuracy: ±1.8% RH (0…80% RH) at 23°C
Resolution: 0.003% RH (Dew point max 80°C)
Response time: <10 seconds
Long term drift: <0.5% RH / year

Power supply / Battery
Primary: 1 Lithium Thionyl battery size A (3.6V) with connector
Secondary: 1 AA Alkaline battery (1.5V) in the battery holder
Operating temperature range with lithium batteries: -40°C to +60°C (up to 85°C peak) but the case may be damaged
Operating temperature range with alkaline batteries: -10°C to +50°C
Recommended temperature range to maximise product autonomy: +5°C to 35°C
Battery life at 25°C: almost 2 years (lithium) / approximately 1 year (alkaline)
Battery supplier: Newsteo (lithium) / Any supplier (alkaline)
User replaceable: Yes (connector-to-plug for lithium; battery holder for alkaline)

Time, memory and communications
RTC: Integrated real-time clock for timestamping measurements. Resolution: 1 s. Maximum drift: 2 minutes/month at 25°C. The time is set in production.
Flash memory: 16 Mbits flash, or 129,000 measurement blocks (shocks take 2 blocks). Example capacity in a 2-year campaign: 1 inclination and temperature measurement every 15 minutes = 70,080 records; 29,000 shock recordings.
Wireless communication: Operates on ISM band, short range device (designed for the European market using the 868 MHz band).
Antenna: Internal antenna
Range: 100 meters in open space
ILS: Magnetic sensor for user actions (wake up the product in hibernation mode; trigger a measurement outside the defined measurement frequency)

Physical
Color: Black
Material: Plastic
Case characteristics: The case includes 2 holes for fixing to a wall or inside a package
Dimensions (without flange cover / with flange cover): Length: 84.80 mm / 110.15 mm
Width: 56 mm / 56.20 mm
Height: 22 mm / 26.2 mm
Weight approx.: 160 g (lithium batteries included)
IP level: IP65

Caractéristiques / spécifications techniques

• Model: TRE37-001
• Sensors: 3-axis accelerometer, temperature sensor, humidity sensor
• Shock measurement range: -16g to +16g per axis; resolution 14 bit (3.9 mg); accuracy ±0.5g at 25°C
• Temperature range: -40°C to 85°C; accuracy ±0.2°C (0…60°C); resolution 0.015°C
• Humidity range: 0…100% RH; accuracy ±1.8% RH (0…80% RH) at 23°C; resolution 0.003% RH
• Memory: 16 Mbits flash (≈129,000 blocks)
• Wireless: ISM band (868 MHz for Europe); internal antenna; typical range 100 m open space
• Battery: Lithium Thionyl A (3.6V) primary or 1.5V AA alkaline; user-replaceable
• Protection: IP65 enclosure
• Weight: ≈160 g (with lithium battery)