Instructions

UM-0085-B09 DT80 Range User Manual Page 287

Figure 120: DT80/ 82I/ 85 series 4 internal power subsystem

Figure 121: DT82E/ 80L/ 85L series 2 and 3 internal power subsystem

Figure 122: DT82E/ 80L/ 85L series 4 internal power subsystem

External Power

The DT80 is normally powered by an external 10-30V DC supply. This might, for example, be:

• a mains supply (e.g. using the supplied plug pack)

• a 12V or 24V solar charged external battery

• a 12V or 24V vehicle supply

This external power supply may be connected in one of two ways, using either:

• the round plug pack power socket (inner pin is positive), or

• the rightmost two terminals (- and +) of the adjacent 4-way removable screw terminal power connector. This

provides a more robust connection

Internally these two connectors are wired in parallel, so you can for example power the unit via the plugpack and then

draw power from the screw terminals for powering external relays or sensors.

Note: Switch mode power supplies can introduce noise into analog readings and are therefore not normally recommended for powering

the DT80.