User Guide

The information about SIM charge and expiration date are

not saved in the SIM card but are managed by the network

operator; the instrument can not get directly the information.

To prevent the discharge of the SIM card, the user has to

configure manually (accordingly with the credit stored on the

SIM card) the maximum number of SMSs that can be sent

(item P.04).

Note Every time an SMS is submitted, the item P.04 is updated and

it will always indicate the remaining number of messages that

can be sent by the instrument.

When the number of remaining messages is going to reach

zero (the lower limit depends on the value of item P.05), the

message “Rem_msg: xxx; Maximum number of Sms reached.

Please check the HI 504 SIM card charge level” will be sent

by the instrument to the programmed phone number(s). This

particular situation is managed as an error occurrence and

a confirmation of the SMS reception is waited.

In this case the user is supposed to extract the SIM card from

the cellular module as soon as possible and to check the

remaining credit (using its own cellular phone and calling

the network operator).

When a confirmation is given to the message, the “Cellular

error” is switched on and no more messages will be sent by

the instrument in case of error occurrences. To disactivate the

“Cellular error”, it is necessary to modify the item P.04.

Every time a recharge of the cellular module SIM card is

performed, the corresponding expiration date has to be manu-

ally updated in the Setup menu (items P.07 - P.09). A check is

performed daily between the current (see “Real time clock”

subgroup in Setup menu) and the expiration date. Two weeks

before the expiration date, the message “Rem_msg: xxx; The

HI504 SIM card will expire on: DD-MM-YYYY. Please recharge

or substitute it” is sent to the programmed phone number(s).

The same message will be sent again also one week before,

and the day before the expiration date.

Note This particular warning message does not need confirma-

tion.

In this case the user has to recharge or substitute the SIM

card. The sending of the repeated warning messages will be