Turner 2180-000, Руководство пользователя, Страница: 8 / 21

Turbidity Plus Sensor
998-2187 Rev. G Page 8
With Turbidity Plus connected as shown in Figure 1 and 2 perform functional
tests to answer the following questions:
1. Is there voltage output?
The multi-meter should be reading some voltage >0 VDC
2. Does the voltage output change?
Move the palm of your hand towards the optical head and check if the
voltage output increases
Note: A visual test of the LED for Turbidity Plus is not possible because it is
IR, which is not visible.
2.5 Functional test of the wiper for Turbidity Plus with connector with P/N 2200-
170 .
To perform a functional check on the wiper, connect the Pigtail colored wires to
the power supply and multi-meter following the steps below, shown in Figure 3.
1. Disconnect the blue wire from the meter and connect the yellow wire in its
place. It should read about 0 volts.
2. Briefly touch the orange wire to the power supply ground.
3. The wiper should start rotating and the meter should read about 3.2 volts
until the wiper returns to its home position.
Figure 3.
Note: The sensor has built in protection if the wiper becomes blocked and
cannot move. In this case the wipe will stop and will try to return to the home
position the next time it is triggered.
Warning: Do not move the wiper by hand. This can cause permanent damage
to the sensor.
12.00 .015
+ -
DC Power Supply
PSU Positive Connection
(Red)
Supply Ground
0 VDC (Green)
3.20
Multimeter
10 VDC
+
-
Home Signal
(Yellow)
Analog Ground
“-” (Brown)
Black White
No Connection
Turbidity Plus Pigtail Cable
Output Signal
“+” (Blue)
Wiper Trigger
(Orange)