Olympus BH-2 BHT Посібник - Сторінка 12

Переглянути онлайн або завантажити pdf Посібник для Мікроскоп Olympus BH-2 BHT. Olympus BH-2 BHT 24 сторінки. Sliding focus block
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AC Power Switch

The AC power switch (see Figure 11) is an Alps SDT‐7 chassis‐mount DPST rocker switch with a TV‐5 rating for UL/CSA.

This switch cannot be cleaned with control/contact cleaner since there are no openings to inject the cleaner. The

mounting holes of this switch are spaced 34mm on center.

Figure 11 – AC Power Switch Mounted to BHT/BHTU Electrical Base (100/115V Version)

Voltage Selector Switch

The voltage selector switch (see Figure 12) is a chassis‐mount DPDT slide switch rated for 4A/125VAC and 2A/250VAC.

The slide protrudes 3/8" from the mounting surface and the mounting holes are spaced 1‐1/8" on center. There are

openings on both ends of this switch through which control/contact cleaner may be sprayed while the slider is

positioned at the opposite end (with power removed from the equipment). The low‐voltage position of this switch is

rarely needed, and if a compatible replacement cannot be found, the switch could simply be bypassed in order to

hardwire the microscope to operate at its nominal operating voltage. Since only one pole on this switch is used, a SPDT

replacement could be used.

Figure 12 – Voltage Selector Switch Mounted to BHT/BHTU Electrical Base (100/115V Version)

Olympus BH‐2 (BHT/BHTU) Electronics

Revision 2

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