805-501A-111 Datasheet, PDF (13/36 Pages) Magnetrol International, Inc. – KOTRON® MODEL 805 SMART RF LEVEL TRANSMITTER

2.5 Wiring
Black (-)
Caution: The Kotron Model 805 transmitter operates at voltages of
11–36 VDC (GP) and 11–28.6 VDC (IS). Higher voltages
Red (+)
will damage the transmitter.
All wiring between the power supply and the Model 805
(+) ^{transmitter should be made using 18–22 AWG shielded}
(-) twisted pair instrument cable. Within the transmitter
enclosure, connections are made to the terminal strip and
the ground connections. The directions for wiring the
Model 805 transmitter depend on the application:
• General Purpose or Non-incendive (Cl I, Div. 2)
• Intrinsically Safe
WARNING! Explosion hazard. Do not disconnect equipment
unless power has been switched off or the area is
known to be safe.
2.5.1 General Purpose or Non-incendive (Cl I, Div. 2)
A general purpose installation does not have flammable
media present. Areas rated non-incendive (Cl I, Div. 2)
have flammable media present only under abnormal
conditions. No special electrical connections are required.
If flammable media is contained in the vessel, the trans-
mitter must be installed per Cl I, Div. 1 standards of
area classification.
To install General Purpose or Non-incendive wiring:
1. Remove the cover to the wiring compartment of the trans-
mitter. Install the conduit plug in the unused opening.
2. Install a conduit fitting and pull the supply wires.
3. Connect shield to an earth ground at power supply and
leave floating at the transmitter.
4. Connect an earth ground wire to the nearest green ground
screw. (Not shown in illustration.)
5. Connect the positive supply wire to the (+) terminal and
the negative supply wire to the (-) terminal.
6. Replace the cover to the wiring compartment of the
transmitter.
2.5.2 Intrinsically Safe
An intrinsically safe (IS) installation potentially has flam-
mable media present. An approved IS barrier must be
installed in the nonhazardous (safe) area. See Agency
Drawing – Intrinsically Safe Installation, Section 3.4.4.
50-660 Kotron Model 805 Smart RF Level Transmitter
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