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3.1
Overview
This section describes the installation requirements and procedures for the 5000 TC toroidal probes and
associated mountings.
3.2
Location Requirements
Locate the sensor as close as possible to the measuring instrument in order to minimize electrical
interference and signal loss.
REFERENCE
When indirectly wiring the sensor to the instrument with interconnect cable and a junction box, use only
Honeywell cable part number 51451255-001. If a different cable is used, it must have equivalent
construction: five conductors and two separate isolated shields -- one shielding the signal, and one
shielding the overall cable. These specific cable characteristics protect the measurement signal from
electromagnetic interference. Using a cable with different construction may interfere with the measurement
system's performance.
3.3
Basic Mounting Types
Regardless of the mounting method, always use Teflon tape on the sensor and mounting hardware threads to
avoid leaks. Do not use pipe sealant.
Immersion (no adapter needed)
The convertible style sensor may be immersion mounted by threading it onto the end of a pipe of an
appropriate length (Figure 3-1).
Step
1
Screw a 3/4 x 1/2-inch NPT reducer coupling onto the cable end of the sensor. Use an adjustable or
open-end wrench on the flatted section below the sensor threads to carefully tighten the connection
to prevent leaks.
CAUTION
Do not tighten the sensor connection by holding and turning the "doughnut-shaped" end of the sensor. This
could crack the sensor body.
2
Route the sensor cable through a 1/2-inch diameter mounting pipe of an appropriate length. Screw
the pipe onto the reducer coupling.
3
Fasten the pipe-mount junction box onto the 1/2-inch NPT threads of the mounting pipe.
4
Route the sensor cable into the junction box. If the cable is too long, cut it to just the length needed
which minimizes electromagnetic interference. Then very carefully re-terminate the sensor wires and
shields by following the procedure described in Section 4.
4/00
Series 5000TC Toroidal (electrodeless) Conductivity Sensors - Operation and Maintenance
3. Installation of Mounting Types
Table 3-1 Mounting Procedure
Installation of Immersion, Sanitary or Union Mounting
Action
7
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