ie-ms2-MS6-10
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This interface serves for data logger communication with GSM modem for reception and sending
of SMS messages. Interface is wired always to RS232 connector.
If data logger is set for communication with computer via other interface than RS232, then in
case of enabled SMS messages support data logger communicates in 10s intervals with modem to
evaluate state of received SMSs and sent alarm SMSs.
In case data logger is set to main interface RS232, then it is supposed, data logger has connected
GSM modem to this interface. Interface is used both for SMS and for communication with computer.
SMS messages evaluation is performed with the 2 minutes interval, but only in case, no
communication with the PC is in progress. If communication with the PC is in progress, SMS
interface waits until channel is free.
9.3.5
Data memory
Total memory capacity:
up to 480 000 analog values (count of binary values can be more)
9.3.6
Real time clock circuitry
Contains actual data with seconds, minutes, hours, days, months and years. Circuitry works even
if data logger is disconnected from power.
Error of time value:
maximum 255 ppm ± 5 ppm/year at temperature 23°C ± 10 °C
9.3.7
Internal battery
Serves to back-up recorded data and to power of real time clock (RTC) in case, data logger is not
connected to power.
Type of battery:
Lithium 3V, VARTA CR ½ AA
Estimated life:
10 years from date of production of data logger
9.3.8
Electromagnetic compatibility
Device is tested in accordance with EN 61326-1: 2006 article 6 table 1
radiation: EN 55022 ed. 2 class B
immunity: EN 61000-4-2: class B
(4/8 kV)
EN 61000-4-3: class A (3V/m)
EN 61000-4-4: class A (0,5/1 kV)
EN 61000-4-5: class A
EN 61000-4-6: class A (3 V)
9.3.9
Operating condition
Operating temperature:
(0..50) °C
Operating humidity:
(5 .. 85) %RH
Settling time after switching ON:
15 minutes
9.3.10
Storing condition
Storing temperature:
-
10 to +70 °C
Relative humidity:
5 to 95 %