Honeywell SmartLine STIW400, Руководство пользователя

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5. Power and Start up
5.2. 24V Power Supply Option
Revision 1 SmartLine Wireless Temperature and Universal I/O User's Manual 39
24V Power Supply Connection/Replacement Procedure
Tools
required
• #1 Phillips Screwdriver or 1/8” Slotted Screwdriver
• Torque Screwdriver
• 1.5 mm hex key
It is the User/Installer’s responsibility to install the SmartLine Wireless Transmitters in
accordance with national and local code requirements.
Step Action
WARNING
ENSURE POWER IS OFF BEFORE OPENING COVER IN AN EXPLOSIVE ATMOSHPERE
1
Loosen the M3 locking set screw on the supply end-cap (opposite end from display).
Unscrew and remove the end cap.
2
Install a cable gland appropriate for the environment on one of the conduit entries on the
side of the enclosure. Plug the unused conduit entrance with a conduit plug appropriate for
the environment
3
Feed the power supply wires (26 to 12 gauge) through the cable gland, and insert into the
24V terminals. The terminals tightening torque is 0.4 Nm to 0.5 Nm (3.5 to 4.4 lb-in)
4
If shielded wire is used, do not terminate the shield at the transmitter. The shield should be
terminated at the power supply end.
5
If replacing the 24V power supply module, loosen the two retaining screws, ensure the
power supply connector is disconnected, and pull out the out module. Install the new
module. Reattach the screws and tighten to 0.4 – 0.6 Nm (3.5 – 5.3 lb-in).
6
Ensure the “J2” Jumper in the NON-RTD position for Temperature transmitters.
7
If disconnected, reconnect the 24V Power Supply connector J1 to the transmitter power
connector.
8
Ensure all wires are free of the threads to allow the cap to be re-installed.
9
Honeywell recommends lubricating the end cap threads with a silicone grease such as
Dow Corning #55 or equivalent before replacing the end cap
10
Screw the cap back on and tighten the M3 locking screw
11
Turn on the 24V source supply