Campbell CR5000 Specifiche Pagina 37

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Section 1. Installation and Maintenance
1-13
While powered from an external source, the CR5000 measures the voltage of
the lithium battery daily. This voltage is displayed in the status table (Section
1.6) A new battery will have approximately 3.6 volts. The CR5000 Status
Table has a “ Lithium Battery” field. This field is either “ True” (battery is
good) or “False” (replace battery). If the lithium cell is removed or allowed to
discharge below the safe level, the CR5000 will still operate correctly while
powered. Without the lithium battery, the clock will reset and data will be lost
when power is removed.
A replacement lithium battery can be purchased from Campbell (part number
13497). Table 1.10-1 lists the specifications of the battery.
Table 1.10-1 CR5000 Lithium Battery Specifications
Model Tadiran TL-5955 (3.6 V)
Capacity 1650 mAh
self discharge rate 1%/year @ 20°C
Diameter 14.5 mm
Length 33.5 mm
Operating temperature range -55°C to 85°C
The CR5000 must be partially disassembled to replace the lithium cell.
The battery is replaced as shown in Figures 1.10-4 to 1.10-6. The battery is
held in place by a band clamp. It can be removed by gently prying the band
from the sides of the battery holder.
SANYO
FIGURE 1.10-4. Removal of CR5000 back plate and lithium battery
location.
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