Kaye ValProbe RT, User Manual

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Chapter 2: Kaye ValProbe RT Hardware
Kaye ValProbe RT User Manual 15
2.3. Logger Battery
The Kaye ValProbe RT Logger contains a field-replaceable 3.6 VDC, Lithium
Thionyl Chloride ½ AA battery.
WARNING! To prevent ignition in a hazardous atmosphere, the battery
must be changed only in an area known to be non-
hazardous.
Do not heat the battery above 140ºC. For measuring
temperatures above 140ºC, a special probe and insulating
canister are required to keep the temperature of the Logger
below 140ºC for the duration of the study. (See Section 2.1.2
on Page 12.)
Use only the factory-specified battery (part number M3205)
in the Kaye ValProbe RT Logger. The use of non-specified
batteries will void the warranty and may damage the Logger
and/or cause burns to the operator. Replacement battery kits
are available from Kaye.
Batteries must be disposed of in accordance with local,
state, and federal regulations.
Battery life is affected by several factors, including sample rate, temperature,
and hours of use. In addition, individual battery characteristics and capacity
vary inherently from one battery to another by up to 10%. Refer to the battery
life tables in the Kaye ValProbe RT online help for the best approximation of
the number of runtime hours you can expect from the battery at different
sample rates and temperatures.
The Kaye ValProbe RT software tracks each Logger's battery life to within
10% of a potential low-voltage occurrence to help prevent interrupted or
incomplete studies. When determining the battery life remaining, the
software bases its calculations on the assumption that the battery can supply
a predictable amount of energy (mAh) over the temperature range.
When the batteries are used in environments at room temperature or above,
and the battery life runs down to a fixed percentage, that remaining
percentage is generally not available in environments below room
temperature due to battery chemistry. The battery life calculation is accurate
when a Logger is used exclusively for studies at or above room temperature,
or exclusively for studies below room temperature.
Kaye recommends that you replace the battery when there is 10% battery life
remaining. If the battery life falls below 10%, the study may stop early.
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If the battery is fully drained or is removed, the study setup and
data, as well as the calibration information, are maintained in
non-volatile memory inside the Logger.