For some applications, it is necessary to use batteries as a power source for the Dimetix sensor. The approximate battery lifetime can be calculated if the sensor’s current consumption and the battery capacity are known.
The table on the left provides an overview of the measured current consumption of the Dimetix sensors.
The current consumption varies depending on the supply voltage, the operation mode of the sensor, and the interface used. For an exact determination of the current consumption, it is generally recommended to carry out current measurements on the sensor under real operating conditions.
Recommendations for Battery-Powered Applications
Optimization of battery lifetime by minimizing power consumption.
- Measure only when necessary
- Single measurement instead of tracking
- Use tracking with timer
- Switch off power between measurements if possible
- Operation at low temperatures and/or outdoor applications
- Use of a thermally insulated protective housing (reduction of heating energy)
- Protect the sensor from environmental effects (see Dimetix Knowledge Base KB042)
Calculation Example
Example for the calculation of the battery lifetime.
- Battery: 12 V, 60 Ah
- Sensor without Industrial Ethernet
- Tracking: 0.065 A
- Quiescent current: 0.030 A
=> Calculation Tracking: 60 Ah / 0.065 A = 923 h
=> Calculation Quiescent Mode: 60 Ah / 0.030 A = 2000 h