39
(22)
: Alarm relay delta value for setpoint 1 determines the
value of the correspondent alarm threshold by being added
to or subtracted from the setpoint value for a high (ON/
OFF 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 Poten-
tial Matching Pin must be left floating. Failure 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 without
the second setpoint .
(27)
: An SMS will be sent to this telephone number (if dif-
ferent 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
advising message will be sent to the phone number P .02
(and P .03) . This feature has been introduced to avoid the
discharging 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 .
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