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Turbidity Plus Sensor
998-2187 Rev. G Page 12
4. Integration
Once Turbidity Plus has been tested and/or calibrated you can proceed with
integration into your platform. Refer to the power requirements in Attachment A to
make sure that your system is set up correctly. Refer below for typical use with a
data acquisition system wiring configuration using
P/N 2200-170 Figure 5 and
Fondriest Cable Figure 6 .
Note: The wire colors are different for no housing or no connector versions,
refer to Appendix D for the colors.
4.1 Taking measurements:
1. Supply power to the sensor.
2.
The digital output to the wiper trigger should normally be a “1” or high and
the digital input from the Home Signal should read “0” or low.
3. Take readings if desired, readings are valid 3 seconds after full power is
applied.
4.2 To wipe:
1.
Take the digital output to the wiper trigger momentarily low or “0”. The wiper
will start rotating on the transition from high to low. Multiple rotations of the
wiper can be achieved by sending multiple pulses on the trigger wire while
the wiper is rotating, but after each triggered rotation there must be a 50
millisecond delay before the next triggered rotation. The wiper will rotate the
number of pulses it receives.
2. The home signal can be monitored on the digital input.
It is normally a “0” or
low.
When the wiper is rotating this signal will go to a “1” or high.
3.
While the wiper is rotating (when the home signal is “1”) readings are not
valid.
4.
When the digital input monitoring the home signal returns to “0” that means
the wiper is in the home position and readings are now valid.
Figure 5
– P/N 2200-170
* Black and White wires from the cable are not connected.
P/N
2200-170*
Turbidity Plus Acquisition System
Red Supply Voltage
Power Positive
Green Supply Ground
Power Ground
Brown Signal Ground Analog Input Ground
Blue Signal Out Analog Input Signal
Orange Wiper Trigger Digital Output
Yellow Home Signal Digital Input
+
-
PSU
Positive
3-15 VDC
PSU
Ground
0 VDC
Analog
Signal
+
Analog
Ground
-
Turbidity Plus Pigtail Cable
P/N 2200-170
Digital
Input
Digital
Output