Campbell CR3000 Micrologger, Руководство оператора

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Section 7. Installation
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6. Reconnect the white power connector to the datalogging module. Re-seat the
module and tighten down the knurled thumbscrews. Re-seat the terminal strips
if necessary.
7. Switch the power switch to ON.
8. Check for normal datalogging function before leaving the site.
Sealed Rechargeable-Battery Safety
There are inherent hazards associated with the use of sealed rechargeable
batteries. Under normal operation, lead acid batteries generate small quantities of
hydrogen gas. This gaseous by-product is generally insignificant because the
hydrogen dissipates naturally before building-up to an explosive level (4%).
However, if the batteries are shorted or overcharged, hydrogen gas may be
generated at a rate sufficient to create a hazard. Campbell Scientific makes the
following recommendations:
•
A CR3000 equipped with standard, sealed-rechargeable batteries should
NEVER be used in applications requiring INTRINSICALLY SAFE
equipment.
•
A sealed, rechargeable battery should not be housed in a gas-tight
enclosure.
CR3000 Base Sealed-Rechargeable Battery Specifications
Feature Specification
Battery Type Sealed Rechargeable
Manufacturer Yuasa
Model Number Yuasa NP7-6
Campbell Scientific Part Number 8216
Float Life @ 25 °C 3 years minimum
Capacity 7.0 Ampere-hours
Shelf Life, Full Charge 6 months
Charge Time (AC Source) 40 hr full charge, 20 hr 95% charge
Operating Temperature –15 °C to 50 °C charge
–20 °C to 60 °C discharge