Choosing the right version of the ReLog vibration data logger

Highlighted features for all ReLogs

Configurable sample rate between 100 - 25,000 Hz

Acceleration range: +/- 50 g

Resolution: 0.002 g to 0.0000039 g

Premium 3-axis MEMS accelerometer

Temperature sensor and IMU

Mounting accessories are always included

3 versions of the ReLog

These are the differences

ReLog S

  • 2,600 mAH battery size
  • 32 GB of internal memory

ReLog M

  • 3,000 mAH battery size
  • 64 GB of internal memory
  • Logging-while-charging

ReLog L

  • 3,400 mAH battery size
  • 128 GB of internal memory
  • Logging-while-charging

VibInspect

Vibration analysing software

To ensure you are able to analyse and interpret the data you’ve just acquired, each ReLog comes with an included software that allows you to perform analyses on the vibration or to convert the measurement data to a file format you can use in your own system.

Detailed technical specifications

Physical & Environmental properties

Parametervalue
Weight220 g
Dimensions103 x 61 x 25,8 mm​
Operating temperature-20°C – 60°C (-4°F to 140°F)
Recommended storage temperature+10°C – 30°C (50°F to 86°F)
Charging temperature0°C – 40°C (32°F to 104°F)
Shock limit2,000g
Casing materialAnodized aluminum
Environmental protectionIP67
EX/ATEX classificationNo

Battery specifications

Parametervalue
ChemistryRechargable Lithium Ion
Nominal capacityReLog S: 2,600 mAh
ReLog M: 3,000 mAh
ReLog L: 3,400 mAh
Minimum capacityReLog S: 2,500 mAh
ReLog M: 2,900 mAh
ReLog L: 3,300 mAh
Operating temperature-20°C – 60°C (-4°F to 140°F)
Storage temperature1 month : -20°C – 60°C (-4°F to 140°F)
3 months: -20°C – 45°C (-4°F to 49°F)
1 year: -20°C – 20°C (-4°F to 4°F)
Battery time at full sampling rateReLog S: 80 h
ReLog M: 95 h
ReLog L: 110 h

Primary accelerometer

Parametervalue
AccelerometerCapacitive MEMS
Main featuresHigh frequency, high G and low noise
Sample rate per axis32,000 Hz 16,000 Hz 8,000 Hz 4,000 Hz
Bandwidth-3dB at 10 kHz
Measurement range+/- 50 g
Shock resistance10,000 g
Resolution1.5 mg
Noise density26 μg/√Hz
Analog anti-aliasing filter cutoff frequency10 kHz
Digital filter32 tap FIR

Secondary accelerometer

Parametervalue
AccelerometerCapacitive MEMS
Main features DC accurate, long-term stability and minimal drift versus temperature
Sample rate per axis 4000Hz, 2000Hz, 1000Hz, 500Hz, 250Hz, 125Hz
Bandwidth3 dB at 550 Hz
Measurement range+/- 2.048 g
+/- 4.096 g
+/- 8.192 g
Shock resistance5,000 g
Resolution3.9ug at +/- 2.048 g
7.8g at +/- 4.096 g
15.6g at +/- 8.192 g
Noise density25 μg/√Hz
Analog anti-aliasing filter cutoff frequency1.5 kHz
Digital filterSinc type
Drift 0.15 mg/C maximum, 0.02mg/C typical

Features

Parametervalue
RTC (Real-time-clock)Yes
CE, RoHs comliantYes
Logging while charging over
USB (can be connected to power outlet)
Yes

Storage

Parametervalue
Type of storageInternal SD Card
Transfer of datavia USB-cable to PC
Storage sizeReLog S: 32 GB
ReLog M: 64 GB
ReLog L: 128 GB
Max. recording length with
32,000 Hz sample rate
ReLog S: 46 hours
ReLog M: 93 hours
ReLog L: 155 hours

Temperature sensor

Parametervalue
Temperature range−40°C to +150°C (-40°F to 302°F)
Accuracy±0.20°C from −10°C to +85°C at 3.0 V ±0.25°C from −20°C to +105°C from 2.7 V to 3.3 V
Total temperature drift0.00073 °C
Resolution0.00078 °C

Applications areas for the ReLog

Vibration monitoring

Monitor vibrations in your environments with high accuracy and precision. Ensure that high quality data is captured and analyse it correctly with our free software

Failure mode analysis

The ReLog can efficiently be used to discover and analyse unexpected vibration patterns and provide basis for explanations why products fail unexpectedly.

Transportation monitoring

Monitor your cargo or vehicles by attaching the ReLog to an area where vibrations are likely to occur and could be an indicator of damage

Vibration monitoring

The ReLog is perfectly usable for sophisticated testing institutes that wish to conducting high precisions measurements without needing to use cables and wires to set up the accelerometer

Product evaluation

Measure vibrations with the ReLog to understand how your product is performing during the development stage and ensure that all potential failure modes are detected

Shock monitoring

Use the ReLog to monitor if your products or assets are being exposed to shocks that could potentially be dangerous for the equipment itself.

Condition monitoring

Use the ReLog to monitor a system, asset or vehicle in semi-real time to detect failure modes and use the data to predict the failures before they occur.

Machine health monitoring

Similar to condition monitoring but rather use the ReLog on several different machines and occasion to ensure that the machines are in good health.

Looking for additional resources?

No problems! We have compiled all necessary information around the ReLog and its specifications, application areas and other useful pieces of advice to make it as simple as possible for you to understand how, when and where to use the ReLog.