PRODUCT SPECIFICATIONS
IMx-1 wireless sensor specifications
68 (84)
SKF Enlight Collect IMx-1 System
User Manual
Revision A
5.1.2 Operational states and battery
Table 5
Wireless sensor operational states and battery specifications
Model designation
IMx-1
Type
Non-replaceable lithium thionyl battery
Typical lifetime
4 years, configuration dependent
Modes
WPAN IEEE 802.15.1, Mesh and Flight modes
Mode switch
By Bluetooth/NFC from app or a timeout
Decommissioning by app: Bluetooth is used to
place the sensor in flight mode
Notes:
Typical battery lifetime is based on all four overall measurements being collected
three times per day, with time waveforms transmitted once per week. Lifetime range
reflects that actual lifetime is dependent on application/environmental temperature.
Wireless environment and battery life are linked: having more data to upload affects
mesh performance and physical obstacles to the wireless network can increase
transmission times and create heavily loaded nodes. Sensors used as measurement
only leaf nodes have a longer expected lifetime than mesh nodes that both perform
measurements and contribute to the sensor mesh.
5.1.3 Measurements
Table 6
Wireless sensor measurement specifications
Model designation
IMx-1
Enveloping
Band 3
Resolution
0.001 gE/bit
Acceleration
Yes
Dynamic range
50 g peak
Resolution
0.002 g/bit
Velocity
Yes
Dynamic range
100 mm/s (3.94 in/s) RMS
Resolution
0.2 mm/s (0.008 in/s) RMS
Temperature
Yes
Measurement range
Greater than IMx-1 operating range
Resolution
1
0
C (1.8
0
F)
Accuracy
±2
0
C (
–40 to +65
0
C), ±3
0
C (
–40 to +95
0
C)
±3.6
0
F (
–40 to +149
0
F), ±5.4
0
F (
–40 to +203
0
F)
Maximum and minimum temperatures
Stored by the sensor
Notes: