Tesla BM 510, Instruction Manual

Page: 17 / 54

POKYNY PRO UVEDENÎ PRISTROJE DO CHODU
INSTRUCTIONS FOR SETTING IN OPERATION
Umisteni pfistroje
Pfistroj umistëte tak, aby byl dostatecnÿ pfi-
stup vzduchu do pfistroje a nedochâzelo ke
zbytecnému pfehfâti a tim ke zhorseni vlast-
nosti pfistroje.
Pripojeni na sit'
Pfed pfipojenim na sit se pfesvëdcte, zda je
pfistroj pfepojen na sprâvné sifové napëti na
volici. Pfipadné chybnë nastavené napëti pfe-
pojte volicem do sprâvné polohy. Pfepojeni se
provédi prepinacim kotoućkem, kterÿ vytâhnë-
te a zasuńte tak, aby cislg, udâvajici napëti,
bylo proti trojühelnikové znacce na zadnim
stitku. Pfistroj je od vÿrobce nastaven na na-
pëti 220 V. Pfi pfepojeni na 120 V je tfeba vy-
mënit téz sifovou pojistku. Hodnoty pojistek
pro obë napâjeci napëti jsou uvedeny v rubrice
„TECHNICKÉ ÛDAJE“.
Kontrola chodu pfistroje
Zasuhte sitovou sńuru do pfivodky a do sifove
zastrćky. Vypinafi musi byt v poloze „0“; vse-
chny knofliky, zvlastg „Jas“ (R24) v poloze
max. vytocene doleva. RovnSz vypinac „Rastr“
musi byt v poloze „0“. Vsechny vstupy zesilo-
vacu pfepngte do polohy „0“. Prepinac v hori-
zontólnim zesilovaci pfepngte do polohy ,,CZ“ ;
prepinac volby synchronizace do polohy „Int“ ;
druh cinnosti casove zśkladny do polohy
„SYNCHR.“ a potenciometr jemnś regulace ze-
sileni horizontalniho zesilovace do polohy
„Kai. CZ“.
Pfepnëte vypinac do polohy „1“. Tim se roz-
sviti signalizacni zârovka, kterâ signalizuje,
ze pfistroj je v provozu.
Zapnëte vypinaëem „Rastr“ osvëtleni rastru.
Pfibliznë po jedné minutë se objevi stopa, jejiż
polohu „Jas“ a „Ostrost“ sefid'te potenciometry
„PosuvY“ (R254, R255); „Jas“ (R24); „Ostfeni“
(R33) a „Posuv X“ (R354, R355).
Spojovacim kâblikem propojte vÿstup kalibrâ-
toru „60 mV“ se vstupem vertikâlniho zesilo-
vaëe, oznacenému „Y1“ a tento pfepnëte do
polohy „ i r r “. Nastavenim potenciometru
jemné regulace zesileni vertikâlniho zesilovace
do polohy „Kal. Y“ dostanete na stinitku obdél-
nikové prübëhy (velikost 3 dilky). Pfipadnou
nesrovnalost v amplitudë lze dostavit prvkem
„Kalibrace citlivosti“, pfistupnÿm na levém
boku pfistroje. Pfepinânim rychlosti casové zâ-
kladny se pak mohou volit rüznâ mëfitka roz-
vinuti horizontâlniho dëje. Nastaveni potencio­
metru jemné regulace zesileni horizontâlniho
zesilovace do polohy „Kal. X “ pouzivâme pfi
Location of Instrument
When locating the instrument, provide for a
sufficient access of air to its interior to pre­
vent undersirable overheating, which would
cause worsening of the instrument properties.
Connection to Mains
Before connecting the instrument to mains,
see that the mains voltage selector is preset
to the correct value. In the case of incorrect
presetting change the selector to the desired
position. To do this, withdraw the selector
disk and reinsert it so that the number indi­
cating the mains voltage lies opposite the tri-
angle-shaped index on the back plate. The
manufacturer presets the mains voltage to
220 V. When changing to 120 V it is also ne­
cessary to replace the mains fuse. The fuse
values for the two mains voltages are indica­
ted in the “SPECIFICATIONS“.
Operation Check
Insert the mains lead into the instrument r e ­
ceptacle and then into the mains socket. The
mains switch must be in its “0 “ position and
all the knobs, particularly the “BRIGHTNESS“
knob (R24), are to be turned to their extreme
left. The “GRAT.“ switch must likewise be in
its “0 “ position. Now return all the amplifier
input switches to their “0 “ positions. To pro­
ceed, change the input divider switch of the
horizontal amplifier to the position “T. B.“,
the triggering mode switch to the position
“INT.“, the time-base mode switch to the po­
sition “TRIG.“ and the fine gain-adjustment
potentiometer of the horizontal amplifier to
the position “T. B. CAL.“.
Now trip the mains switch to the position “1“.
This causes the pilot lamp to light up to indi­
cate that the instrument is in operation.
Close the “GRAT.“ switch to illuminate the
graticule. The electron trace appears on the
screen in about one minute. Adjust its posi­
tion, brightness and sharpness with the aid
of the potentiometers “Y SHIFT“ (R254, R255J,
“BRIGHTNESS“ (R24), “FOCUS“ (R33] and
“X SHIFT“ (R354, R355).
Use a cable to interconnect the “60 mV“ cali­
brator output with the vertical amplifier input,
marked “Y l “, and switch it to the position
„ r m “. Set the fine gain-adjustment potentio­
meter of the vertical amplifier to the position
“Y CAL.“ to obtain rectangular pulses on the
screen (magnitude 3 divisions]. Amplitude
deviations, if any, can be removed with the
element marked “GAIN ADJ.“ accessible from
the left side wall of the instrument. Diverse
scales of development of the horizontal pro­
cess can then be selected by changing the
sweep rate of the time base. The fine gain-
adjustment potentiometer of the horizontal
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