Fluid Components International FS2000L - Manual (Page 5)

NuTec ® Series Fluid Components International LLC
Doc. No. 06EN003348 Rev. D 5
This page is subject to the proprietary rights statement on the last page
Input Power, 100-240 Vac
1. FCI recommends installing an input power disconnect and a fuse near the instrument to interrupt power during installation, maintenance,
calibration, alarm selection and troubleshooting procedures. Conduit should also be installed according to the local electrical codes
or hazardous location requirements. If the wires are to be pulled through the enclosure it is recommended that the control circuits be
removed from the housing.
2. Ensure the power is off to the instrument before wiring the instrument.
3. With the enclosure cover removed, locate the 4-40 hold down screw next to the serial number block on the top control circuit (see Figure
12). Loosen the screw to release the edge of the top control circuit and flip up the top circuit to expose the bottom circuit.
Note: The 4-40 screw is captive on the control circuit.
4. If the control circuit requires removal, disconnect the sensor element wires from TB3 using a 3/32” flat head screwdriver. Remove the
two Phillips screws on the bottom control circuit and pull the control circuit assembly out of the enclosure enough to expose the ground
wire. Disconnect the ground wire and remove the control circuit assembly from the enclosure. After pulling wire to the enclosure, reas-
semble the control circuit assembly back into the enclosure before wiring the power and output. Make sure the green ground wire is
reconnected to the enclosure.
5. Attach the ac power leads to TB4 as indicated on the control circuit. Make sure that an earth ground wire is attached to the earth ground
terminal. See figure 9.
6. Attach the relay load wires to TB5. The relay contact conditions are shown in the alarm state (de-energized). The relay’s maximum rating
is 6 amps 28Vdc-100/240Vac, resistive loads. The minimum current and voltage rating 20mA, 10 volts. If the load is less than the mini-
mum values use the open collector terminal on TB1, top control circuit.
7. After making the connections to TB4 and TB5 (TB1), secure all the wires to the tie down bracket with a cable tie wrap. See figure 9. This
is required by safety agencies to act as a strain relief and to prevent fly off of a wire with high voltage potential.
8. After making all the wire connections, flip down the top control circuit and secure it with the 4-40 captive screw.
9. Refer to the next section for functional verification and adjustments.
Input Power, 24 Vdc/Vac
1. FCI recommends installing an input power disconnect and a fuse near the instrument to interrupt power during installation, maintenance,
calibration, alarm selection and troubleshooting procedures. Conduit should also be installed according to the local electrical codes or
hazardous location requirements. If the wires are to be pulled through the enclosure it is recommended that the electronics be removed
from the housing.
2. With the enclosure cover removed, locate the 4-40 hold down screw next to the serial number block on the top control circuit (see Figure
12). Loosen the screw to release the edge of the top control circuit and flip up the top control circuit to expose the terminal blocks on the
bottom side.
Note: The 4-40 screw is captive on the control circuit.
3. If the control circuit requires removal, remove the green ground wire going to the ground screw. Disconnect the sensor element wires
from TB3 using a 3/32” flat head screwdriver. Position the control circuit at a 45º angle to the plastic standoffs and snap the control
circuit off the standoffs. Reinstall the control circuit before connecting the power and loads. To reassemble, snap the control circuit on
the plastic standoffs at a 45º angle to the plastic standoffs and reconnect the element wiring.
4. Determine the type of power to be used (24Vac or 24Vdc) and attach the power leads to TB1 as indicated on the control circuit. See
Figure 10. Make sure that an earth ground wire is attached to the earth ground terminal inside the housing.
5. Attach the relay load wires to TB2. The relay contact conditions are shown in the alarm state (de-energized). The relay’s maximum rating
is 6 amps 28Vdc-100/240 Vac, resistive loads. The minimum current and voltage rating 20 mA, 10 volts. If the load is less than these
values use the open collector terminal on TB1 See Figure 10.
6. After making all the wire connections, flip down the top control circuit and secure it with the 4-40 captive screw.
Refer to the next section for the set point and alarm state settings.