801-2-31-A40 Datasheet, PDF (6/28 Pages) Magnetrol International, Inc. – KotronTM II Series 801 RF Capacitance Transmitter For Level/Flow/Volume

WIRING cont.
WIRING PROCEDURE
NOTE: Do NOT attempt to operate this unit at voltages other
than as shown in the Model Identification as it may damage
the unit.
CAUTION: This instrument is grounded through the
grounding connector of terminal block TB1 of the
mother board. The power input must include a
ground wire connected to a good earth ground.
Failure to ground the instrument may allow a shock
hazard to exist!
Transmitter Power Wiring
1. Open the cover of the transmitter enclosure by loosening
the six screws.
2. The main PC board (mother) is marked for 120/240 VAC
(L1, L2/N, GND) and 24 VDC (±) power connections.
Ensure proper connections are made on these three ter-
minals. Refer to Figure 6. Spade lugs should be used.
For optimum operator safety, observe the wiring colors
listed in Table 1.
U.S.
Europe
U.K.
Line 1 (HI)
Black
Blue
Brown
Line 2 Neutral White
Black
Blue
Ground Green/Yellow Green/Yellow Green/Yellow
Wiring Colors By Country/Continent
Table 1
Relay Wiring
Refer to Figure 6 on page 5 for terminal locations.
NOTES:
1. Relay 3 can be dedicated as a diagnostic alarm. (See
calibration section of the manual for the proper use of
this relay).
2. Equipment controlled by the Kotron relays is assumed to
be powered from one source, while the Kotron unit itself
is assumed to be powered from a different source.
3. "Fail" means a loss of power to the Kotron unit.
4. a. When the relay coil is de-energized, a connection is
made between the terminals CM (common) and NC
(normally closed), and there is no connection between
CM and NO (normally open).
b. When the relay coil is energized, a connection is
made between the terminals CM and NO, and there is
no connection between CM and NC.
Probe Preamplifier Wiring
To connect the preamplifier to the transmitter, use a shielded
twisted pair of 22 gauge stranded conductors (Magnetrol P/N
009-7146-001).
Transmitter Wiring
Output Wiring
Connect 4–20 mA output wiring to (+) and (–) terminals of
TB1 on the main printed circuit board. Refer to Figure 6.
Ensure proper polarity by connecting red wire to (+) terminal
and black wire to (–) terminal. The shield should be connect-
ed to earth ground to ensure proper noise immunity.
3. 16 AWG or 18 AWG stranded wire is recommended for
connection of power and control circuits.
4. Proceed to the Probe Preamplifier Wiring Section.
Power Wiring
1. Make sure power source is turned off.
2. Pull power supply wires through transmitter conduit
connection.
3. Connect the positive supply wire to the (L1) terminal,
the negative (neutral) supply wire to the (L2/N) terminal on
the transmitter, and the ground wire to the (GND)
terminal. Refer to Figure 6 on page 5.
4. Dress the wires together neatly and securely with cable
ties.
OBSERVE ALL APPLICABLE ELECTRICAL CODES AND
PROPER WIRING PROCEDURES.
6