Hanna Instruments HI 504, Инструкция по эксплуатации

Страница: 78 / 116

78
In this case the user has to recharge or substitute the SIM
card . The sending of the repeated warning messages will
be reset when the expiration date is changed . If the expira-
tion date is reached without any updating of the items P .07
- P .09, then the “Cellular error” will be switched on and
no more messages will be sent by the instrument until the
error is disactivated .
To disactivate this error it is necessary to update the SIM
expiration date .
If the user has unlimited credit on the SIM card, the item P .04
has to be set to “222”, which is interpreted by the instrument
as unlimited number of SMSs that can be sent . In this case
the value of remaining messages will not be decremented
and no check will be performed on the SIM card expiration
date . Moreover, at the beginning of each SMS it will not be
present the remaining-messages information (“Rem_msg:
xxx”) .
Note
It is possible to ask information (about the current pH, ORP
and temperature readings and active errors) to the HI504
also from a cellular phone different from the one(s) selected
through the item P .02 (and P .03) . This is accomplished by
sending to the instrument the SMS “+Pxx”, where “xx”
indicates the ID of the
HI504 (setup item G .11) .
The instrument will recognize the command and reply send-
ing the requested information .
Note
If a communication problem occurs during the normal
functioning of the instrument, the “Cellular error” will be
switched on and no SMS can be submitted until this error will
be disactivated (when this error occurs, the instrument will
try repeatedly to initialize the cellular engine and the error
will be disactivated only after a successful initialization, or
if the SMS service is disabled by setting item P .00 to “PC”) .
All the settings of the SMS group in the Setup menu are the
same for both pH and ORP configuration .