Hanna Instruments HI 504901 - Manual (Page 9)

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6. connect the battery cable to the connector;
7. connect the interface to the mains;
8. turn ON the power switch.
Note Pay attention that the battery cable is correctly connected to
the battery connector, otherwise an alarm SMS will be sent
immediately after the start-up procedure (see “Fault Condi-
tion” section for details).
Note If the interface is powered on immediately after a battery sub-
stitution, it is possible that an alarm SMS of “Battery failure”
is sent. Ignore that message and check if the error is still
active the day after. For avoiding this problem, connect the
unit to the mains and wait for at least 10 hours before turning
ON the power switch. In this manner the new battery can be
charged.
SIM CARD INSERTION
Before using the HI504901, insert a SIM card.
• Press the SIM card holder ejector on the cellular module
by using a sharp item (for example, a pen);
• Insert the SIM card in the holder and push it back in the
housing.
Note If the HI504901 has to be used for sending alarm SMS, be
sure that the SIM card can support voice calls. If the
HI504901 will be used for remote connection session, be
sure that the SIM card supports data calls. Please contact the
cellular network operator for information about SIM active
services.
Note Do not remove the SIM card while voltage is applied to cel-
lular phone. Before removing the card, turn off the interface.
Failure to do so may seriously affect the serviceability of the
HI504901.