Page 228 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
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Maintenance
Replacing the Battery
The battery (BR2032) has a life expectancy of ten years, and is affected by ambient
temperature. If the device loses external power the battery will maintain the SITRANS
LUT400’s Real Time Clock (date and time) until power is restored.
The flash memory is updated constantly. Therefore, data logs are unaffected by the loss
of power.
WARNING: Disconnect power before replacing the battery.
Notes:
• To replace, remove the existing battery from the holder as shown below, and
reinstall replacement battery (BR2032).
• Battery Type: Lithium metal coin cell
Battery Chemistry: solid-cathode Carbon Monofluoride
Dispose of battery in an environmentally safe manner, and according to
local regulations.
1. Open the enclosure lid.
2. Slide the end of a
screwdriver under the lip
of the plastic battery
cover, and lift cover with
fingers. (Do not press
back on fold.)
3. While holding cover in
raised position, place end
of screwdriver at an angle
into slot below battery,
and pry upward.
4. Lift out battery.
5. Insert new battery and
press down on face of
battery to secure in
holder.
6. Press down on plastic
battery cover to secure in
place.
7. Close enclosure lid and
tighten screws.
8. Reset the Real Time Clock
(See Date and Time (2.14.)
on page 188.)
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