Hanna Instruments HI 504 User Manual

Page 21

(29): Every SMS sent by the instrument requires a reception
confirmation from the user (phone call to the instrument). If
this confirmation does not arrive (for example because the
message was lost or did not reach the Short Message Service
Center), it is possible to set the instrument in order to send
again the message. The maximum number of repeated mes-
sages is set through this item (see P.06 for the delay between
two subsequent messages). If this item is set to 0, then no
confirmation is waited by the instrument.
(30): This item sets the delay between the sending of two
subsequent messages. It has effect only if item P.05 value is 1
or greater.
(31): The SIM’s expiration date has to be inserted manually
through these items (P.07 - P.09). The user is supposed to up-
date these items every time a recharge of the card occurs. Three
advising messages are sent to the telephone number config-
ured in item P.02 (and P.03) when the card is going to expire
(two weeks before, one week before and the day before).
If the user sets the item P.04 to “222” then no check will be
made on the SIM expiration date.
(32): A “temperature level” error is generated whenever the
measured temperature is greater than the “maximum tem-
perature level” or lower than the “minimum temperature level”.
The difference between maximum and minimum must be at
least 2°C. A small fixed hysteresis (0.3°C) must be passed to
have the alarm turned off.
(33): The modem present in the HI 504902 module is cer-
tified by Telecom to work in the following countries: Argen-
tina, Australia, Austria, Belgium, Brazil, Canada, Chile,
China, Cyprus, Czech Republic, Denmark, Finland, France,
Germany, Greece, Hong Kong, Hungary, Iceland, India,
Indonesia, Ireland, Israel, Italy, Japan, Korea, Liechtenstein,
Luxembourg, Malaysia, Mexico, Netherlands, New Zeland,
Norway, Philippines, Poland, Portugal, Russia, Singapore,
Slovak Republic, South Africa, Spain, Sweden, Switzerland,
Taiwan, Turkey, United Kingdom, United States.
If your country is not present in the list, please contact your
Hanna dealer.
If the country code is shorter than 3 characters, fill the code
with zeros in front.

or PID) or low (ON/OFF or PID) setpoint respectively. The
same is true for Alarm relay delta value for setpoint 2. A
small fixed hysteresis (0.2 pH for pH and 30 mV for ORP)
must be passed to have the alarm turned off (for a high
alarm the alarm is turned off below high alarm - hysteresis,
while for a low alarm the alarm is turned off above low alarm
+ hysteresis).

(23): The actual start of a cleaning action depends on how
relay 3, relay 4 and the Advanced Cleaning parameters have
been configured.
(24): If the item is set to “On”, the “m” tag near the second-
ary display will be fixed on.
If the item is set to “OFF” the connector for the
Potential Matching Pin must be left floating. Fail-
ure to do so may cause damage of the reference
electrode.
(25): When the Digital Transmitter is in use, the correspon-
dent setting in the digital transmitter is used and this item is
not visible.
(26): This item is not visible for models without PID or with-
out the second setpoint.
(27): An SMS will be sent to this telephone number (if differ-
ent from “- - - - - - - - - - - - - - - - - - - -”) when an error
(configured for the SMS sending) occurs.
(28): This item sets the maximum number of SMS that the
instrument can send. Before this number reaches 0, an ad-
vising message will be sent to the phone number P.02 (and
P.03). This feature has been introduced to avoid the discharg-
ing of the credit of the SIM card. Once all the available
messages have been sent, the user is supposed to extract the
SIM card from the instrument and check the remaining credit
and expiration date of the card.
The item shows always the remaining available number of
SMS that can be sent, so its value is decremented every SMS
submission.
If the user sets this item to “222”, then no check will be made
on the maximum number of SMS and the instrument could
send an unlimited number of messages. In this case the item
value will not be decremented and no check will be made on
the SIM expiration date.