External Hold; Rs 485 Output - Crison MultiMeter 44 Manual Del Usuario

5.1.5

External Hold

5.2

RS 485 output

5.2.1 Connections
8. Select
OPTIONS SMS
SMS sending: Yes. Select NO when after SMS configuration, it is not required to
•
send messages.
Initial SMS: No. Possibility to send one SMS every time when the instrument is
•
switched on.
Remote requirement: Yes. Allows sending the measured value by one channel.
•
For this, it is necessary to send to the instrument one SMS with text "C1", "C2",
"C3" or "CT" (all channels) from the telephone number programmed in the
modem.
Sending frequency: 0 (0 to 9999 minutes). The instrument can send one message
•
with the measured values by the channels with programmed frequency.
Frequency of 0 minutes indicates that only alarm messages will be sent.
Response time: 30 (0 to 999 minutes). Time for responding to an alarm message
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sent by the instrument. If the instrument has not received a response during this
time, it sends a message again. All messages, except remote requirements and
the messages sent with programmable frequency, should be answered.
Otherwise, after the response time, the instrument will send the message again.
9. Perform the check for sending. From the main menu select
INSTALLATION > SMS
Format of SMS messages
Example for message sent by MultiMeter 44:
SENSOR ALARM >: <1> Serial N.60801
Bassin3 07-07-2008 09:36:08, Sensor alarm
C1 pH 7.01 25 ºC
Where:
<1> Number identifying the message. This number should be introduced as response message.
Bassin3: Instrument name. See
Example of response to the previous message: 1
Example of remote requirement for readings from Channel 1: C1
Selecting this option, it is possible to inhibit the regulation, for example by external relay.
This external relay should cross the signals Rx and Tx of the RS 232.
On the display of MultiMeter 44 there is the measured value and "L-OFF" indicating that
the regulation is inhibited.
Once the regulation is activated, the instrument will wait the programmed time in
"Regulation delay" before starting the regulation.
Always disconnect power to the instrument when making any electrical connections.
. Introduce the following data using the keypad:
.
4.4 Instrument configuration, page
D A N G E R
Advanced operations
SYSTEM > CHECK
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