Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 59)

IM 11M13A01-04E 5-3
5. Wiring
5.1.3 Mounting of Cable Gland
For each wiring inlet connection of the equipment, mount the conduit appropriate for the
screw size or a cable gland.
25
F5.3E.EPS
Cable gland
Rc1/4 or 1/4NPT
(Reference air inlet)
Rc1/4 or 1/4NPT
(Calibration gas inlet)
M20 ϫ 1.5, 1/2 NPT or the like
(Wiring connection)
Unit: mm
Figure 5.3 Cable Gland Mounting
5.2 Wiring for Analog Output
This wiring is for transmitting 4 to 20mA DC output signals to a device, e.g. recorder.
Maintain the load resistance including the wiring resistance of 550
⍀ or less.
+
-
AO(+)
AO( - )
FG
F5.4E.EPS
Shielded cables
Analyzer Receiver
Figure 5.4 Wiring for Analog Output
5.2.1 Cable Specifications
Use a 2-core shielded cable for wiring.
5.2.2 Wiring Procedure
(1) M4 screws are used for the terminals. Use crimp-on terminals appropriate for M4
terminal screws for cable connections. Ensure that the cable shield is connected to
the FG terminal of the equipment.
(2) Be sure to connect (+) and (-) polarities correctly.
CAUTION
• Before opening the detector cover, loosen the lock screw. If the screw is not loosened
first, the cover will be improperly engaged to the body, and the terminal box will
require replacement. When opening and closing the cover, remove any sand particles
or dust to avoid gouging the thread.
• After screwing the cover on the equipment body, secure it with the lock screw.