Orion Instruments Jupiter 2xx FOUNDATION Fieldbus - Manual (Page 11)

57-649 Jupiter Magnetostrictive Transmitter - F OUNDATION fieldbus™ 11
2.5 Wiring
Caution: The Jupiter magnetostrictive transmitter operates at volt-
ages of 9-32 VDC (nominal voltage is 24 VDC). Higher
voltages will damage the transmitter.
Wiring between the power supply and the Jupiter
transmitter should be made using 18–22 AWG shielded
twisted pair instrument cable. The transmitter enclosure
consists of two compartments. The upper compartment is
used to terminate the field wires (wiring termination com-
partment), and the lower compartment is the electronics
compartment.
The Jupiter is offered for use in Class I, Div 1 areas (flam-
mable gasses may be present). Follow the instructions
below to complete wiring of the instrument.
WARNING! Explosion hazard. Do not disconnect equipment unless
power has been switched off or the area is known to be
non-hazardous.
An explosion proof (XP) installation potentially has flam-
mable vapors or media present. Covers on instruments in
these areas must remain on and tight while power is
applied to the instrument.
Equipment installed in an area classified as Class I, Div 2,
reflects that flammable or explosive vapors may be present.
To install intrinsically safe wiring, make sure the IS barrier
is properly installed in the safe area (refer to local plant or
facility procedures). Complete the wiring from the barrier
to the Jupiter transmitter. See Agency Specifications–
Intrinsically Safe Installations, Section 5.2.2.
1. Make sure power is off in any junction box which will be
exposed to the atmosphere, unless the area has already
been sniffed and approved free of flammable vapors.
2. The top cover (field wiring compartment) of the Jupiter
transmitter may be removed. Place the cover in a location
where dirt will not get on the threads.
3. Attach the black wire (-) to the negative terminal on the
termination strip.
4. Attach the red wire (+) to the positive wire on the termina-
tion strip.
5. Ground shield at power supply.
6. Tighten and check connections, then replace cover.
7. An explosion proof seal is not required unless specifically
noted by the local code.
Note: All local, state and federal regulations and codes must be
adhered to during and after installation.
Red (+) Black (-)
(+)
(-)
Figure 4
Wiring Diagram