(6) Set voltage at 20. Push HIGH TENSION button (the green LED should light)

Slowly increase voltage from 20 kV to 160 kV using soft keys (wait 1 minute between each step).

(7)After voltage reaches 160 kV, press FREE CONTROL soft key. Use focus knob, slowly increase voltage from 160kV to 200kV. If it arcs (loud popping sound), use focus step size knob to decrease voltage increment. You may also increase voltage to 200 kV by directly press 200 if the microscope has been conditioned and continuously used.

(8)After 200 kV is reached, press FREE CONTROL soft key to un-highlight it.

(9)Press READY (button under computer display) to go back to TEM bright field page.

III.To Apply Filament Current:

(1)Press READY to go back to start-up page (or TEM bright field page if high tension was originally off).

(2)Press MODES on start-up page (or TEM bright field page)

(3)Press CONFIGURATION on mode selection page.

(4)Turn FILAMENT knob slowly (with 10-20 seconds pause between each setting/click) until the number after ACTUAL is equal to the number after FIL LIMIT. DO NOT CHANGE

FILAMENT CURRENT AND EMISSION SETTINGS WITHOUT AUTHORIZATION.

(5)Check EMISSION current. It should be somewhere between 5 to 8 µA.

(6)You should be able to see the intensity on the fluorescent screen. If you are at a magnification >10,000, you will need to condense the beam in order to see the intensity.

(7)Press READY to go back to mode selection page and then press TEM to enter TEM bright field page.

IV. Manual Axial Alignment of the Illumination System

(A)Centering Condenser Aperture

(1)Select SPOT SIZE 2, set magnification at 15,000X to 25,000X.

(2)Move your sample to the center hole (i.e., away from the sample).

(3)Select condenser aperture by carefully turning largest knob on end of aperture (if needed).

(4)Center the condenser aperture. Condense the beam using the INTENSITY knob and center the beam, as necessary, using the SHIFT knobs. Aperture center can be judged

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Philips CM-20 manual III. To Apply Filament Current
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CM-20 specifications

The Philips CM-20 is a dynamic and innovative multimedia speaker system that enhances the audio experience for users yearning for rich sound quality and versatile functionality. Designed with modern aesthetics and cutting-edge technology, the CM-20 is ideal for home entertainment setups, providing user-friendly features that cater to audio enthusiasts and casual listeners alike.

One of the standout features of the Philips CM-20 is its powerful audio output, delivering deep bass and crisp highs. Its advanced speaker design includes well-engineered drivers that ensure a balanced sound profile, making it suitable for various audio genres, from classical to contemporary. The system is equipped with a built-in amplifier, which optimizes performance and ensures minimal distortion even at higher volumes.

Connectivity is a key aspect of the CM-20. It boasts multiple input options, including Bluetooth, USB, and RCA. This allows users to easily connect a variety of devices, such as smartphones, tablets, and computers, enabling seamless streaming of music. The Bluetooth capability is particularly noteworthy, as it permits users to enjoy wireless audio playback without the hassle of tangled cords.

The user-friendly interface of the Philips CM-20 is another highlight. It features intuitive controls that make it easy to adjust volume, bass, and treble settings, allowing users to customize their audio experience to their personal preferences. Additionally, the speaker system includes a remote control for added convenience, enabling users to manage playback from a distance.

In terms of build quality, the CM-20 combines durability with sleek design. Its compact size makes it easy to integrate into any living space, while the aesthetically pleasing finish enhances the overall décor. The system is built to last, providing a robust solution for long-term use.

Another key characteristic of the Philips CM-20 is its energy efficiency. The speaker system is designed to minimize power consumption without compromising performance, making it an eco-friendly choice for audio lovers.

In summary, the Philips CM-20 stands out with its powerful audio capabilities, versatile connectivity options, user-friendly controls, and appealing design. It represents a great addition to any home audio setup, providing an enjoyable listening experience suitable for any occasion. Whether for casual use or dedicated listening sessions, the CM-20 is engineered to impress.
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