INTEGRA Metering AMTRON S3 Installation And Operating Instructions Manual page 20

Then insert the screwdriver into one of the two openings at an angle of approx. 45° and carefully lift the handle up
to approx. 90° (see picture 2). The upper housing piece of the calculator is then no longer latched on this side.
Repeat this with the other opening. Now the upper housing piece can be taken off.
Plug the interface module on the right side of the PC board. The cables are to be fed through the rightmost cable
feedthroughs into the calculator after removing the blind grommets. Close the calculator.
Protect the calculator against unauthorized opening using one of the numbered adhesive seals enclosed to the
modules (stick it upon the seal destroyed). The added bar code label can be used for the purpose of
documentation.
10.3 Exchanging the battery
The meter's battery is easy to exchange by authorized technical personnel (our replacements only). Replaced
batteries must be disposed of according to relevant environmental regulations.
To exchange the battery open the meter´s calculator as described above in 10.2. Afterwards protect the calculator
against unauthorized opening using one of the numbered adhesive seals enclosed to the batteries (stick it upon the
seal destroyed). The added bar code label can be used for the purpose of documentation.
10.4 Mounting an optional power pack
If an external power supply is needed, only the power pack designed for our heat meter may be used.
To connect the power pack, first open the meter´s calculator as described above in 10.2. Then remove the battery
from the calculator and plug it into the battery connector in the power pack. Protect the power pack against
unauthorized opening using one of the numbered adhesive seals enclosed. The added bar code label can be used
for the purpose of documentation. (The battery is a backup in case of a power outage.)
The power pack cable (A) has two connectors; plug the one connector onto the contact fingers on the left hand side
of the PC board. Then feed the cable through the meter´s leftmost cable feedthrough (viewed from the front) after
removing the blind grommet. The other connector is to be plugged into the female connector on the PC board.
Page 20 of 37 Article no.: 1080621015 2022_01_18 Subject to technical change! Errors excepted.