YOKOGAWA SC150, Инструкция по эксплуатации

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IM 12D7B4-E-H
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3. INSTALLATION AND WIRING
3-1. Installation site
The EXAxt converter should be installed as close as possible to the sensor to avoid long
cable runs between sensor and converter. In any case, the cable length should not exceed
60 meters (200 feet). Select an installation site where:
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Mechanical vibrations and shocks are negligible
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No relay/power switches are in the direct environment
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Access is possible rear of the unit for wiring
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The transmitter is not mounted in direct sunlight or severe weather conditions
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Maintenance procedures are possible (avoiding corrosive environments)
The ambient temperature and humidity of the installation environment must be within the
limits of the instrument specifications. (See chapter 2).
3-2. Mounting and dimensions
Refer to fig. 3-1 to 3-5. Note that the EXAxt has integrated mounting clamps:
The EXAxt uses an Integral mounting clamp at each corner, driven by screws operated from
the front panel, fig. 3-1.
●
Ensure that the clamp “fingers” are backed off a few millimeters more than the thickness
of the panel, fig. 3-2.
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Insert the unit through the mounting hole (Square hole, 92 x 92 tol.+0.5/-0mm), fig. 3-3-1.
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Rotate the unit slightly anti-clockwise to allow the clamp fingers to pass through the panel.
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Rotate the unit clockwise slightly (back to square) and tighten the 4 screws to hold it in
place, fig. 3-3-2 and fig. 3-3-3.
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Tighten the screws progressively to ensure that the panel seal seats evenly, fig. 3-3-4.
Fig. 3-1. Integrated mounting clamps
Fig. 3-2. Clamp Finger
FINGER
PANEL THICKNESS
11 to 18 mm
FINGER
PANEL THICKNESS
0 to 11 mm
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Fig. 3-3. Insertion of the Unit through a mounting hole