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TDS values in setup (excluding the temperature compensation table and the con-
centration curves) are automatically updated, so that the "new value / new f.s."
= "previous value / previous f.s."
( 9 )
A life check error is generated if the reading does not vary more than 0.5%
of the current f.s. within the time period selected through the "life check time"
setup item.
( 1 0 ) When a Digital Transmitter is used, temperature and conductivity are mea-
sured by the transmitter, and sent to the process controller. The calibration data
set for the digital transmitter is separated from the one regarding the inductive
probe input. This means that the calibration data is automatically switched from
inductive probe set to digital transmitter set, and vice versa, each time the mea-
surement input is changed from "Inductive probe" to "Digital transmitter", and
vice versa. For example, if measurements are performed with an inductive probe
directly connected to the controller, then through a transmitter, and again with
the direct probe, it is not necessary to re-calibrate the conductivity input.
( 1 1 ) The alarm relay can be energized continuously (by selecting "Level" option)
or with a pulse (by selecting "Pulse" option). The pulse span is fixed at approxi-
mately 5 seconds.
( 1 2 ) Both relays 3 and 4 must be set to "Advanced cleaning" for enabling the
advanced cleaning feature. If only one of them is set to "Advanced cleaning", it
will behave as if it were set to "Off". Once the advanced cleaning is enabled,
relay 3 is used for water pouring and relay 4 for detergent pouring.
( 1 3 ) "Previous value" and "User selected value" are effective only when items
O.10 and O.20 are set to "Recorder", otherwise the analog output is automati-
cally set to the minimum value upon hold mode (i.e. items O.14 & O.15, O.24
& O.25 have no effect if O.10 = Control-setpoint 1 and O.20 = Control-
setpoint 2, respectively).
( 1 4 ) "Measured value" is the reading with no reading offset adjustment.
( 1 5 ) If the device is set for MTC, items b.50 and b.51 can not be modified nor
viewed. When setup item b.01 is changed from ATC to MTC, item b.11 is auto-
matically zeroed.
( 1 6 ) When relays set to "Simple cleaning" are all changed to another option,
the simple cleaning action in progress, is aborted immediately. When relay 3,
relay 4 or both of them are set to an option different from "Advanced cleaning",
the cleaning action in progress, is aborted immediately, but a complete rinsing is
always performed before the actual end of the advanced cleaning session.
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( 1 7 ) If the relay 1 (or relay 2) mode is set to "Control-setpoint 1", the analog
output 1 can not be set to "Control-setpoint 1", and vice versa. Similarly, if the
relay 1 (or relay 2) mode is set to "Control-setpoint 2", the analog output 2 can
not be set to "Control-setpoint 2", and vice versa.
( 1 8 ) The alarm turns off only when the alarm hysteresis (setup item C.34) has
been passed. For high alarm, the alarm turns off below "high alarm - hysteresis",
while for low alarm, the alarm turns off above "low alarm + hysteresis").
( 1 9 ) The actual start of a cleaning action depends on the configuration of relay
3, relay 4 and advanced cleaning parameters.
( 2 0 ) When using the digital transmitter, this item is not visible, and the corre-
sponding digital transmitter setting is used.
( 2 1 ) An SMS will be sent to this telephone number when an error configured for
SMS sending, occurs. No SMS will be sent if no number has been entered.
( 2 2 ) This item states the maximum number of SMSs that the meter can send.
Before this number reaches 0, a warning message will be sent to the programmed
telephone numbers (items P .12 and P .13). This function has been introduced for
avoiding the discharge of the SIM card credit. Once all available messages have
been sent, the user should extract the SIM card from the GSM module and
check remaining credit and expiration date.
The item always shows the remaining number of SMSs. This value is obviously
decremented at each SMS submission.
If this item is set to "222", no check will be done and the instrument can send an
unlimited number of messages. The item value will not be decremented upon
SMS sending, and the SIM expiration date will not be checked.
( 2 3 ) Each SMS sent by the instrument requires a confirmation phone call. If this
confirmation does not arrive, it is possible to set the instrument for repeated
message sending. The maximum number of repeated messages is set through
this setup item, while the delay between to subsequent messages is set through
the item P .16. If the repeated message number is set to 0, then no receiving
confirmation is needed.
( 2 4 ) The delay between two subsequent messages acts only if P .15
( 2 5 ) The SIM expiration date has to be entered manually through items P .17 to
P .19. The user should update these values at each card recharge. Three warning
messages are sent to the programmed telephone numbers (items P .12 and P .13)
to advise the user that the card is expiring (two weeks before, one week before
and one day before the expiration date).
0.
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