Thermo Scientific AquaSensors
™
AnalogPlus
™
Contacting Conductivity Sensor User Guide
15
Detailed Insertion Mount Installation Instructions
1.
Wiring:
a.
Route the sensor cable through the 1.5 inch extension pipe.
b.
Apply Teflon® tape to the sensor threads.
c.
Attach the sensor to the 1.0 inch NPT reducing coupling by turning the sensor in a
clockwise direction until secure.
d.
Either route the cable directly to the C99 or splice the wires in a junction box and
use an extension cable.
e.
Insert the cable into the Model C99 controller through a watertight cord grip.
Conduit holes are provided for the cord grip on the bottom of the C99 controller.
f.
Connect the sensor wires into the C99 sensor terminal block as shown in the C99
manual.
2.
Calibrate:
a.
Power the C99 controller.
b.
Remove the protective cap from the sensor head. Connect and calibrate the
Conductivity sensor as explained in the C99 manual. Subsequent calibrations
should be scheduled based on process demands.
c.
If measurement response time is slow or if the sensor will not calibrate, refer to
Section 4 for maintenance, refurbishment and troubleshooting suggestions.
3.
Mount:
a.
Secure the pipe assembly so that the sensor is fully immersed in the process.
Handrail mounting hardware can be ordered from Thermo Fisher Scientific.
Be sure that the wire colors of the sensor cable match those of the
interconnect cable on either side of the terminal strip.
Do not route the interconnect cable conduit where there are AC or DC
power cables which create electrical noise that may interfere with the
sensor signal.
Route the interconnect cable through metal conduit to minimize electrical
noise that may interfere with the sensor signal.
