DIEL MT 200 Manual De Instalacion Y Uso página 12

STATUS A, TAB 1), in case of failure of probes or feeding absence, the relay
switches off (FAULT STATUS B, TAB 1).
FAN relay is dedicated to the management of the fans of cooling of the transformer
or for the conditioning of the environment where the transformer is installed.
The ALARM and PRE AL relays switch on when the temperature is higher than one
degree of set level.
Each probe type PT100 is gifted with three wires, one of them is white and the other
two are red.
Connect the white wire to the terminal board which is marked as shown as sensor,
connectors (1-4-7-10)
The twelve terminal boards relevant to the four probes are divided as follows:
Probe N. 1 connectors 1-2-3, probe N. 2 - connectors 4-5-6
Probe N. 3 connectors 7-8-9, probe N. 4 - connectors 10-11-12
All measured signals cables must preferably be:
• Separated from the power cables
• Shielded, better if also stranded
• With a section of not less than 0.5 mm
Push and hold the buttons UP/DOWN for programming menù.
On the display appears the letter P (Pre-alarm) and the set temperature from the
last programming.
The pre-alarm temperature is set through UP/DOWN buttons.
After setting the pre-alarm temperature push ENTER.
The letter A (Alarm) appears together with the set temperature of the last
programming. If the new pre-alarm temperature is higher than old alarm, the device
proposes a new pre-alarm temperature more 1 degree.
Modify it pressing buttons UP/DOWN and confirm by ENTER.
Now on the display appears the letter L. for the choice of the lowest temperature
under which the fan switches off.
Modify it pressing buttons UP/DOWN and confirm by ENTER.
The letter H appears to choose the maximum temperature over which the fan
switches on.
Modify it pressing buttons UP/DOWN and confirm by ENTER.
On the display appears finally the letter F which allows to fasten the state of the
ENGLISH
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PROGRAMMING
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