Specifications

Section 3. Instrumentation Installation
FIGURE 3.1-3. An enclosure attached to two tower legs.
3.1.2 Datalogger and Power Supply
The datalogger includes hardware for mounting it to an enclosure backplate
(see Figure 3.1-4). Either a BPALK or PS100 power supply is also typically
housed in the enclosure if a CR800, CR850, or CR1000 is used. These power
supplies also include hardware for mounting them to an enclosure backplate
(see Figure 3.1-4).
3.1.3 BPALK Alkaline Power Supply
The BPALK battery pack houses eight alkaline "D" cell batteries. To install the
batteries, loosen the thumb screw and remove the cover.
1. Make sure the red and black wires attached to the left end of the BPALK
are connected to the “12 V” and “G” terminals on the datalogger.
2. Disconnect the battery pack from the external connector on the left end of
the BPALK. Remove the battery pack and insert eight alkaline “D” cell
batteries. Replace the battery pack.
3. Connect the battery pack to the external connector labeled “INTERNAL
BATTERY” and replace the cover.
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