Avtech AVMH-4 Скачать руководство пользователя страница 13 | Manualshive

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Avtech AVMH-4 Скачать руководство пользователя страница 13

FUSES

This instrument contains four fuses. All are accessible from the rear-panel. Two protect
the AC prime power input, and two protect the internal DC power supplies. The
locations of the fuses on the rear panel are shown in the figure below:

AC FUSE REPLACEMENT

To physically access the AC fuses, the power cord must be detached from the rear
panel of the instrument. The fuse drawer may then be extracted using a small flat-head
screwdriver, as shown below:

13

Fuses #1 and #2

(AC fuses)

Fuse #4

(DC fuse)

Fuse #3

(DC fuse)

Fuse
Drawer

Pry out the fuse
drawer using a
screwdriver.

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Содержание AVMH-4

Страница 1: ...Y S T E M S L T D N A N O S E C O N D W A V E F O R M E L E C T R O N I C S S I N C E 1 9 7 5 P O BOX 265 OGDENSBURG NY U S A 13669 0265 TEL 888 670 8729 USA Canada or 1 613 686 6675 Intl FAX 800 561...

Страница 2: ...ace said defective item This warranty does not apply to units which have been dissembled modified or subjected to conditions exceeding the applicable specifications or ratings This warranty is the ext...

Страница 3: ...INSTALLATION 10 VISUAL CHECK 10 POWER RATINGS 10 CONNECTION TO THE POWER SUPPLY 10 PROTECTION FROM ELECTRIC SHOCK 11 ENVIRONMENTAL CONDITIONS 12 FUSES 13 AC FUSE REPLACEMENT 13 DC FUSE REPLACEMENT 14...

Страница 4: ...OW VOLTAGE POWER SUPPLY 1 3 26 PCB 158P LOW VOLTAGE POWER SUPPLY 2 3 27 PCB 158P LOW VOLTAGE POWER SUPPLY 3 3 28 PCB 235A HIGH VOLTAGE DC POWER SUPPLY 29 PCB 219E OSCILLATOR AND TRIGGER CIRCUIT 30 PCB...

Страница 5: ...g transformer that can be installed on the output to generate a negative signal Instruments with the N PN suffix generate up to 100V at the main output and are supplied with an inverting transformer t...

Страница 6: ...e http www avtechpulse com formats for additional details of the basic instrument formats 2 Indicate desired polarity by suffixing model number with P or N i e positive or negative or P PN or N PN for...

Страница 7: ...g Also check that your load is adequately shielded It may be necessary to enclose the load in a metal enclosure If any of the connectors on the instrument are unused they should be covered with shield...

Страница 8: ...ies to Directive 2002 96 EC categories 1 7 and 10 as stated in the Article 2 Scope section of Directive 2002 95 EC DIRECTIVE 2002 96 EC WEEE European customers who have purchased this equipment direct...

Страница 9: ...ura AAD130SD 60 A switching power supply According to the manufacturer the Tamura AAD130SD 60 A has the following certifications UL60950 1 IEC60950 1 CSA C22 2 No 60950 1 EN60950 1 and is compliant wi...

Страница 10: ...NNECTION TO THE POWER SUPPLY An IEC 320 three pronged recessed male socket is provided on the back panel for AC power connection to the instrument One end of the detachable power cord that is supplied...

Страница 11: ...ors are prevented access and or are insulated from every connection point In some cases connections must be exposed to potential human contact Operators must be trained to protect themselves from the...

Страница 12: ...ndoor use 2 altitude up to 2 000 m 3 temperature 5 C to 40 C 4 maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C 5 Mains supply voltage fluct...

Страница 13: ...the fuses on the rear panel are shown in the figure below AC FUSE REPLACEMENT To physically access the AC fuses the power cord must be detached from the rear panel of the instrument The fuse drawer ma...

Страница 14: ...inal Mains Voltage Rating Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 100 240V 0 5A 250V Time Delay 5 20 mm 0218 500HXP F2416 ND 3 DC N A 1 6A 250V Time...

Страница 15: ...ved the instrument will resume normal operation This overload indicator may flash yellow briefly at start up This is not a cause for concern 3 PRF Range Switch and Fine Dial This switch sets the pulse...

Страница 16: ...the SYNC pulse width varies but is always 10 ns When triggering externally the SYNC output is a buffered replica of the TRIG input The amplitude is fixed at 3V approximately and this output will driv...

Страница 17: ...NPUT CONNECTOR Present on units with os option only A DC offset in the range of 50V 250 mA max may be applied to this solder terminal The DC offset will appear on the output When this feature is not u...

Страница 18: ...PULSE CONTROL This instrument can be triggered by its own internal clock or by an external TTL trigger signal When triggered internally two mainframe output channels respond to the trigger OUT and SY...

Страница 19: ...POLARITY INVERSION Instruments with the P PN suffix generate up to 100V at the main output and are supplied with an AVX 2 inverting transformer that can be installed on the mainframe output A negative...

Страница 20: ...added to the DC terminal of the inverting transformer Do not apply the offset to the rear panel offset terminal on the mainframe if present PULSE STABILITY If the output pulse appears to be unstable...

Страница 21: ...here L is the inductance ILOAD is the load current change and t is time For this reason it is important to keep any parasitic in the load low This means keeping wiring short and using low inductance c...

Страница 22: ...ernal offset must be added to the DC terminal of the inverting transformer Do not apply the offset to the rear panel offset terminal on the mainframe if present M OPTION This option provides a monitor...

Страница 23: ...contact Avtech info avtechpulse com to arrange for the instrument to be returned to the factory for repair Service is to be performed solely by qualified service personnel Caution High voltages are pr...

Страница 24: ...es may require replacement All fuses can be accessed from the rear panel See the FUSES section for details CLEANING If desired the interior of the instrument may be cleaned using compressed air to dis...

Страница 25: ...h a s s is g ro u n d p o s t G 1 G 2 B 1 R E D G 4 G 3 L N G X 2 C O R C O M 6 E G G 1 2 P O W E R E N T R Y M O D U L E 1 1 b 1 a 2 2 b 2 a X 1 P O W E R S W I T C H S W 3 2 5 N D C W IN D U S T R...

Страница 26: ...N D 1 5 V P O U T 3 P O U T 1 1 5 V 1 2 J 7 6 4 0 4 5 6 2 D ig i A 1 9 2 1 N D X 8 6 3 2 1 4 S S S C R E W 0 6 0 4 M P P 1 8 8 X 9 6 3 2 1 4 S S S C R E W 0 6 0 4 M P P 1 8 8 X 1 3 6 3 2 S S E X T T...

Страница 27: ...ig i P 5 5 5 0 N D C 8 2 2 u F D i g i 4 4 5 2 8 9 6 N D L 1 M o u s e r 4 3 4 7 7 A 1 0 1 M 0 1 C 4 4 7 u F 3 5 V D i g i P 5 5 5 0 N D C 1 2 2 2 u F D i g i 4 4 5 2 8 9 6 N D L 4 M o u s e r 4 3 4 7...

Страница 28: ...A V T E C H D I S A B L E O L O W H E N C H A R G I N G S H O R T S O U T B A S E W H E N C H A R G I N G B U 1 5 V G N D 1 5 V X 1 K E Y S T O N E 6 2 1 D i g i 6 2 1 K N D R 1 5 0 I F O L O U S E S...

Страница 29: ...PCB 235A HIGH VOLTAGE DC POWER SUPPLY...

Страница 30: ...PCB 219E OSCILLATOR AND TRIGGER CIRCUIT...

Страница 31: ...PCB 206B PRF TO VOLTAGE...

Страница 32: ...PCB 216D PRF PW TWEAKING PCB...

Страница 33: ...I O N C C W C W W R 3 T R 1 K C C W C W W R 1 A M P 1 K 1 5 V G N D 1 5 V G N D T R I G O U T S M A G N D S Y N C 5 V L O F 5 V H I F B I A S M 2 C L 8 2 1 9 E C O N N 3 T R IG C O N N 4 S Y N C 5 V 1...

Страница 34: ...PERFORMANCE CHECK SHEET 34...

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