Dewetron DAQP-LA Series, Техническое справочное руководство

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10
DAQP-LA
IN+
IN-
Safety Banana plugs
red
black
INPUT
CONNECTOR
RS-485(A)
RS-485(B)
+9V
+12 V
reserved
reserved
-9 V
±5 V out
GND
2
3
5
6
7
8
9
1
4
OUTPUT
CONNECTOR
Shunt
Programmable
Gain amplifier
Isolation
2nd order
lowpass filter
(10 steps)
3rd order
Bessel filter
(350 kHz)
DAQP-LA module
9-pin DSUB
Screw terminals
10 mV
to 3 V
Operation with push buttons
LED state
The DAQP-LA series module has a set of 8 LEDs showing the current input range (constant active)
and filter range (flashing) setting. Further functions are described below.
LED indication:
Filter Range Range Filter
30 Hz 600 mA 6 mA 10
4
10 Hz 200 mA 2 mA 10
3
3 Hz 60 mA 10
2
1 Hz 20 mA 10
1
Standard functions:
Range button: Push the
RANGE
button several times shortly until the LED displays the
desired input range.
Filter button: Push the FILTER button once - the LEDs will flash for approx. 3 seconds and
display the current filter setting. Push the FILTER button within the three seconds
several times until the flashing LED displays the desired filter range.
Block diagram
The base block diagram of the DAQP-LA gives an idea of the internal structure.