12
Introduction
BF5 User Manual v
2.
3
Power Considerations
The BF5 is a powered sensor. There are four possible sources of power:
1. The internal 3V alkaline batteries, if fitted. These are optional.
2. Power from the data logger. This only needs to be applied when the
logger takes a reading. The BF5’s Total, Diffuse and Sun analogue
outputs are valid 100ms after power is applied, and are then updated
every 250ms. These analogue outputs are only enabled when there is
a voltage present on the data logger power input (via DL-Power).
3. Power from a 12V heater supply.