ANALOG INPUTS


Up to 4 analog signals can be connected at terminals 02-06 respect to negative terminal 01. Input mode and range can be selected by software for each input.

Unreliable values returned for measures outside the input range.




Voltage source here is connected to analog input A2 (terminal 03) respect to negative (terminal 01).

INPUT RANGE

0 ... 10 V

INPUT MAX

12 V

RESOLUTION

0,003 V

ACCURACY

± 1 %

IMPEDANCE

35 kohm



An NTC temperature sensor here is connected to analog input A4 (terminal 05) and powered by 3,3V internal power supply (terminal 06).

INPUT RANGE

-40 ... 100 °C

RESOLUTION

0,1 °C

ACCURACY

± 1 °C

NTC

10 kohm @ 25÷85°C

B: 3435 @ 25÷85°C

RSR001 103AT/11




Current source here is connected to analog input A2 (terminal 03) respect to negative (terminal 01).

INPUT RANGE

0 ... 20 mA

INPUT MAX

24 mA

VOLTAGE DROP

2 V @ 20 mA

RESOLUTION

0,001 mA

ACCURACY

± 1 %

IMPEDANCE

100 ohm


10 kohm potentiometer is connected to analog input A4 (terminal 05) to measure the voltage corresponding to cursor position between 0 and 3,3V (terminal 06).




An NTC temperature sensor 3K here is connected between analog input A1 and ground  (terminals 02 and 01) and powered by 3,3V internal power supply (terminal 06) through an external fixed resistor.

INPUT RANGE

-20 ... 50 °C

RESOLUTION

0,1 °C

ACCURACY

± 1 °C

NTC

3 kohm @ 25°C

B: 3950 @ 25÷50°C

RESISTOR

3,3 kohm 1% 0,25W


Measuring unit and returned value for FULL SCALE reading can be set for any input. The measure corresponding to ZERO can be set (i.e.: for 4÷20mA inputs set zero to 4, for 2÷10V input set zero to 2).


FULL SCALE VALUE

-1000000 ... +1000000

ZERO

0 ... 21

UNIT

any text


SHILEDED CABLE COULD BE USED FOR LONG LINES: SHIELD CONNECTED TO

NEGATIVE TERMINAL 01 ONLY, OTHER END MUST BE LEFT UNCONNECTED