Electrical Power Connection; Terminal Block (P1) Connections - Xylem WTW Turb PLUS 2000 Operating Manual

Process turbidimeter
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Installation

5.4.1 Electrical Power Connection

Make all connections at Junction Box and securely close BEFORE making connections to a
power source and energizing Turb PLUS 2000.
DANGER
To avoid risks of possible death, personal injury, property damage, and
failure of the instrument to perform as intended ONLY licensed
electrician should perform the installation. ALWAYS take proper
precautions to recognize, evaluate, and control electrical hazards.
1. First, make sure that Turb PLUS 2000 is completely de-energized and disconnected from all power.
2. Perform required LOCK OUT/TAG OUT of electrical power.
3. Confirm that a breaker or method of disconnecting power is located All of the electrical connections to
the instrument are made through the Turb PLUS 2000 Junction Box (see Figure 5), which should be
located directly under the upper portion of the instrument.
4. Carefully open the Turb PLUS 2000 Junction Box (see Figure 5) by removing the four cover screws.
5. With the Junction Box cover removed, the connections are visible as shown in Figure 5.
6. The power cable glands 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 12-30 AWG.
7. Obtain and cut proper wires to make connections for your specific installation and facility. All wires
should be stripped to a length of 6 mm (¼ in).
8. The connections are labeled within the terminal box and are self-descriptive (see Figure 5).
9. Make connections following all local, state, federal and other governmental requirements, and all
building and construction codes and standards for all electrical connections.
DANGER
Earth or Ground wire must be connected to a terminal on the Turb
PLUS 2000 marked "G".
10. A strain relief strap is provided to reduce tension on the power terminals. Pull this tight after completing
the connections.
11. Perform all checks necessary to confirm proper wiring and safe electrical connection.

5.4.2 Terminal Block (P1) Connections:

DANGER
Shut off and disconnect all electrical power BEFORE making or
changing any connections. The terminal block (P1) is located close
to the power connection.
The terminal block for RS-485 (Modbus), 4-20 mA and Alarms has spring loaded connections.
To open the connection, insert a 3mm (1/8 in) flat blade screwdriver into the slot right above the
electrical connection. Pulling up slightly on the screwdriver opens the terminal block connection.
Removing the screwdriver tightens the connection.
There are two stacked rows of connections which are labeled on the PCB. The alarm connections
100193 Rev 0 ba77254e01 11/2020
Turb PLUS 2000
19

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