Beko HLV-800-3 Скачать руководство пользователя страница 14 | Manualshive

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12. Adjustment of protection thresholds

In some cases the default adjustments are too sensitive and need some slight correction. In the
picture below all trimpots incl. their functions are shown. Turning the slots clockwise is equal
to + or upward direction and verse vice. Readjustment should be done very carefully
otherwise the effect of protection is cancelled.

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Содержание HLV-800-3

Страница 1: ...1 HLV 800 3 Instruction Operations Manual Content ...

Страница 2: ...ructions 5 4 Electrical connections 6 5 Warranty 7 6 Front panel operation 8 7 Protection circuits 9 8 Receive Transmit switching 10 9 Remote control 11 10 Cooling technique 12 11 Block diagram 13 12 Adjustment of protection thresholds 14 13 Control circuit schematic 15 14 tbt ...

Страница 3: ...8 EC and 99 5 EC EN 301 783 1 V1 1 1 2000 09 EN 301 783 2 V1 1 1 2000 09 EN 301 489 1 V1 6 1 2005 09 EN 301 489 15 V1 2 1 2002 08 EN 60950 1 2006 All necessary test procedures have been successfully passed Manufacturer and authorized representative BEKO ELEKTRONIK Am Längenmoosgraben 1a D 85221 Dachau GERMANY This declaration has been accomplished under unique reponsability of the manufacturer BEK...

Страница 4: ... an external output relay The internal modulated power limit is kept to 950 watts It s design is based on NXP s rf transistor BLF6G13L 250P Each of the four amplifier blocks is protected by a separate circulator before final 4 1 combining This insures high ruggedness and independence on any load mismatch as well as high linearity and spectral purity It is essential that the driving source has a na...

Страница 5: ...dity of less than 85 In order to avoid malfunction caused by condensation you will have to wait at least one hour before start of operation and until the condensation has been removed 6 To prevent electrical shock do not remove the cover before disconnecting the mains plug 7 The bottom openings are used as a cooling air inlet and the rear side outlet to exhaust the inside generated heat They must ...

Страница 6: ...ion of the specifications and shifting of the threshold voltages of the protection circuits Operation with no load connected is not allowed 5 The RF connectors are 7 16 DIN and N type Only high quality connectors with PTFE insulation must be used Neglecting will cause overload and damage of the connectors and shifting of the thresholds of the protection circuits Special care must be taken when con...

Страница 7: ...ll claims on warranty The device is protected by an invisible seal against opening Damage of the seal will invalidate the warranty Warranty is also excluded if damages are caused by 1 Overdrive with power levels 75W or with power peaks caused by insufficient ALC control of the driving source 2 Feedback oscillations due to direct radiation caused by too small distance between antenna and amplifier ...

Страница 8: ...ning off the preamplifier and turns the preamplifier on after switching off the RF power unit The supply voltage for the use of an external preamplifier is fed to pin 4 of the CONTROL jack at the rear panel It is short circuit protected by use of a ptc fuse and supplies 15 volts 750 mA Preamps that can only accept voltage feed via the coaxial cable can t be used with this amplifier STANDBY If the ...

Страница 9: ...sconnected from the mains when disabling the audible alarm 7 Protection circuits The HLV 800 s internal control circuit supervises the output load condition an overdrive of the input stage and the thermal status of heat sink and power supply unit If the amount of reflected power exceeds 300 watts the protection circuit shuts off the RF unit immediately and switches the drive power to bypass mode T...

Страница 10: ...The PTT line is also used to generate the bias voltage to run the MOSFETs in class AB Without RF input the total idle current is 4 A equivalent to dissipating 200 watts An internal generated and delayed PTT function is available at the inner contact of the rear sided AUX jack to reliably control a connected transceiver Any potential at the inner conductor is switched to ground In essence your ampl...

Страница 11: ... easily be activated by an external switch wired to ground Output power can be monitored 100 of output power is equal to 10V DC on Pin 5 Output relay ext PREAMP 15V DC 5K Shield 100 power level 10V DC POWER ext 6 7 ext switch box Alarm out 4 8V PTT RESET PREAMP 1 mA 5 4 3 2 1 Remote control HLV 800 ...

Страница 12: ...o achieve best airflow for cooling the air in and outlets must not be covered Do not operate the amplifier in close proximity to heaters and radiators If thermal shut down occurs you should wait until the device temperature decreases sufficiently before switching on the amplifier again Please read also our Safety instructions and Electrical connections ATTENTION This device is not designed for 100...

Страница 13: ...13 11 Block diagram ...

Страница 14: ... are too sensitive and need some slight correction In the picture below all trimpots incl their functions are shown Turning the slots clockwise is equal to or upward direction and verse vice Readjustment should be done very carefully otherwise the effect of protection is cancelled ...

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