Rabbit OP7100 User Manual download pdf (Page 87)

OP7100 Installation

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3. Fasten the unit with the eight 4-40 hex nuts that were removed in Step 2.

Carefully tighten the nuts equally until the gasket is compressed to

approximately 75% of its uncompressed thickness of 0.125" (3.2 mm).

Do not tighten each nut fully before moving on to the next nut

since this risks distorting either the panel or the bezel (or

both). Apply only one or two turns to each nut in sequence

until all are tightened to the required amount.

In order to seal the bezel against the panel, the gasket must be

compressed by the pressure of the mounting nuts. If the panel

is very thin (<0.06" or 1.6 mm), this pressure may distort the

panel, allowing water ingress. In this case, Rabbit Semicon-

ductor recommends using strengthening brackets between the

rear of the panel and the mounting nuts as shown in Figure 6-3.

Figure 6-3. Strengthening Bracket

General Mounting Recommendations

If the OP7100 is mounted inside a panel, the enclosure must not be airtight

to ensure that the touchscreen will not distorted by differences in air

pressure. If the OP7100 is mounted in a completely airtight enclosure, a

pressure differential may build up across the window overlay, and could

adversely affect the operation of the touchscreen.

Tip



OP7100 Bezel/Gasket

CONTRAST

RS232

485

GND

n.c.

485

GND

232_RX1/ CT

232_TX1/ RT

PWR_DE9

TXA

RXA

n.c.

GND

n.c.

DCIN (1230 VDC)

CAUTION: High-Voltage

Transformer. Only qualified

persons may open this case.

S/N:

Bracket

Panel

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Rabbit OP7100 User Manual Page 87

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