beautypg.com

Figure 133: loosening thumbscrews, Table 112. internal lithium-battery specifications – Campbell Scientific CR3000 Micrologger User Manual

Page 422

background image

Section 9. Maintenance

422 

 

 

o Time. Clock will need resetting when the battery is replaced.

o Final-storage data tables.

A replacement lithium battery (pn 13519) can be purchased from Campbell
Scientific or another supplier. Table Internal Lithium-Battery Specifications

(p. 422)

lists battery specifications.

Table 112. Internal Lithium-Battery Specifications

Manufacturer Tadiran

Model

TL-5902S (3.6 V)

Capacity 1.2

Ah

Self-discharge rate

1%/year @ 20°C

Operating temperature range

-55°C to 85°C

 

Figure 133: Loosening thumbscrews

Turn off the CR3000 by switching off power at the switch located on the base,
and / or remove the external power connection. Loosen the two thumbscrews on
the face of the CR3000 and remove it from the base. If the CR3000 has a battery
base, carefully disconnect the internal power plug that connects the base to the
CR3000 module.