ST-408N – user's manual
GSM Module is an optional device which, cooperating with the controller,
enables the user remote control of the CH boiler operation via mobile phone. The
user is sent an SMS each time an alarm occurs. Moreover, after sending a certain
text message, the user receives feedback on the current temperature of all the
sensors. Remote change of the set temperatures is also possible after the
authorisation code is entered.
GSM Module may operate independently of the CH boiler controller. It has two
additional inputs with temperature sensors, one contact input to be used in any
configuration (detecting closing/opening of contacts) and one controlled output
(e.g. a possibility of connecting an additional contractor to control any electric
circuit)
When any of the temperature sensors reaches the preset maximum or
minimum temperature, the module automatically sends an SMS message with such
information. A similar procedure is used in the case of opening or closing of the
contact input, which may be used as a simple means of property protection.
If the GSM Module is to be used with the ST-408N controller, it should be
activated by selecting ON option (MENU>Fitter's menu>GSM Module>ON)
IV.h) External temperature measurement
This parameter defines how often the temperature value measured by the
external sensor should be averaged. The temperature is measured continuously and
the value is averaged and refreshed every 60 seconds (factory setting). The setting
range available is 1-600 seconds.
IV.i) External sensor calibration
External sensor calibration is performed when mounting the regulator or after it
has been used for a long time, if the external temperature displayed on the sensor
differs from the actual temperature. Calibration setting range is from -10°C to
+10°C with the accuracy of 0,1°C.
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