Aquametrix AM-TBR Turbidimeter User Manual - Manual (Page 13)

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The sensor drain tubing MUST be routed to a suitable drain. DO NOT reintroduce the drain
sample to the process stream. This is due to the fact that the wetted materials are not FDA
approved. See below for more information.
3.2.2. Wetted Materials:
Water Analytics accepts no responsibility for damage caused by the introduction of vapors, fluids
or other materials into the instrument process stream which is not compatible with the
instrument’s wetted materials. A list of the wetted materials can be found in the specifications on
page 1 of this manual.
3.3. Electrical Connections
All of the electrical connections to the instrument are made through the field terminal box, which
should be located directly under the sensor portion of the instrument. The connections are
labeled within the terminal box and are self-descriptive (see Figure 5). Please follow all local and
government recommendations and methods for installation of electrical connections to and
between the instrument and other peripheral devices.
Plugs are inserted into the alarm and 4-20mA/RS-485 cable bulkheads when shipped, to ensure
a watertight seal. These plugs should be removed and discarded when cabling to either of these
connections.
The power cable bulkhead will accept cable diameters from 5.8mm (.230 in.) up to 10 mm (.395
in.). All terminals are designed to accept wires in the range of 14-28 AWG. All wires should be
stripped to a length of 6 mm (¼”). A strain relief strap is provided to reduce tension on the power
terminals.
It is the user’s responsibility to assure that the watertight seal is maintained after the terminal box
has been wired for operation. If any of the bulkheads are not tightened properly around a cable
or plug, the ratings of the instrument will be jeopardized and there is a possibility of creating a
shock hazard.
Note: Only qualified electricians should be allowed to perform the installation of the instrument
as it involves a line voltage that could endanger life.