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YOKOGAWA PH450G User Manual

YOKOGAWA PH450G
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<2. WIRING AND INSTALLATION>
2-12
IM 12A01A02-01E 8th Edition : Oct. 01, 2015-00
l FLXA21
When input 2 is used, rst wire input 2 which is on the lower second module, and attach the
wiring cover.
Even when input 2 is not used, rst attach the power supply/grounding wiring cover and then the
wiring cover for the second module, and nally wire input 1.
NOTE
When the wiring of sensors is nished, be sure to attach the wiring covers. Furthermore, make
sure the module is locked with the mechanisms on the left and right of the module.
NOTE
Conrm that all locking-tabs (including for BLANK slots) are “Locked” position when close the
front panel.
If locking-tabs are “Unlock” position, the front panel may be interfered with locking-tabs.
Lock
Unlock
Figure 2.12 Locking the module
When all sensor wiring is completed, close the front panel of the FLXA21, and turn on the power.
Make sure that the display is normal.
CAUTION
Do not tighten up four front panel screws one by one.
Each front panel screw should be tightened up in two times of screwing. And, rstly the screw at
the upper left should be screwed a bit, the next is at the lower right, third is at the upper right, and
fourth is at the lower left. The second round is the same sequence again to tighten up four screws.
Do not use an electric screwdriver with high revolutions. If an electric screwdriver is used for
these front panel screws, the revolutions of the electric screwdriver should be less than 400 rpm.
Four screws should be tightened to the following torque;
0.8 to 0.9 N•m (for the plastic housing)
1.5 to 1.6 N•m (for the stainless steel housing)

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YOKOGAWA PH450G Specifications

General IconGeneral
BrandYOKOGAWA
ModelPH450G
CategoryMeasuring Instruments
LanguageEnglish

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