Instructions

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A response by SMS is only given to the phone numbers that have sent a correct command and are stored in the control software.
Example:
Test=1
The relay for SMS output 1 (figure 1, item 9) is switched on after receipt of the SMS. The indicator LED lights up.
This condition remains active until the SMS output 1 is deactivated again with a new SMS. For this, send an SMS with the following text:
Test=0
The relay for SMS output 1 (figure 1, item 9) is switched off after receipt of the SMS. The indicator LED goes out.
If the „SMS output 1“ function was correct, this function can be freely used from now on. To control a function, connect a device to the „SMS
output 1“ relay contacts. For this, observe the maximum permissible voltages and currents in the technical data and the diagram note for
connection of a consumer by relay at the end of the operating instructions.
A relay is already connected to the output „SMS1“.
The SMS outputs 2 to 4 (figure 1, item 9) work according to SMS output 1. No relays are connected to these outputs. At your own discretion,
the control voltage (approx. 4 V, max. 100 mA) can also directly affect other electronic circuits when the output is active. However, a relay
(Conrad item no. 502892) or the relay PCB (Conrad item no. 585498) can also be be directly connected to these outputs.
c) Temperature Outputs „TMP1“ to „TMP4“
Two temperature sensors (Conrad item no. 198896, not included in the delivery) can be connected
to the two temperature inputs „T1“ and „T2“ (figure 1, item 3). Plus/+ (white) is connected to the
left terminal, the signal (red) to the centre and Minus/- (black) to the right terminal. The sensor’s
temperature level can range between -40 °C to +125 °C.
If only a single temperature sensor is used, the input „T1“ must be selected.
If no sensor is connected, the middle input should be connected to the minus connection
(-), for 0 °C to be measured by it and issued.
The outputs „TMP1“ to „TMP4“ (figure 1, item 10) are logically linked with the temperature control.
A relay (Conrad item no. 502892, not included in the delivery) or a relay PCB (Conrad item no.
585498, not included in the delivery) can be directly connected to each of these outputs.
There are two different operating modes: Area measurement and differential measurement.
Area measurement:
You can set a MAX, MIN and a TARGET temperature value for both temperature sensors. The
TARGET value is the defined temperature for the control: If the MAX value is exceeded, output
„TMP1“ (for sensor „T1“) or „TMP3“ (for sensor „T2“) is activated automatically (e.g. for a ventilator)
until the temperature undercuts the TARGET value again.
If the MIN value is undercut, the output „TMP2“ (for sensor „T1“) or „TMP4“ (for sensor „T2“) is activated (e.g. for a heater) until the TARGET
value is exceeded again.
This generates a hysteresis that prevents the outputs from switching on and off in turn all the time.
Example:
If you set the temperature value „MIN“ to 10 °C, the „TARGET“ temperature value to 20 °C and the „MAX“ temperature value to 25 °C), the
output „TMP1“ is switched on when exceeding the MAX value (26 °C) and switched off when reaching the TARGET value (20 °C). When the
temperature drops below the MIN value (9 °C), the output „TMP2“ is switched on and only switched off again when the target temperature
(20 °C) is reached.