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Hameg HM 207 Manual
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Hameg HM 207 Manual

Hameg HM 207 Manual

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MANUAL
Oscilloscope

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Summary of Contents for Hameg HM 207

  • Page 1 Subscribe to DeepL Pro to translate larg Visit www.DeepL.com/pro for more info MANUAL Oscilloscope...
  • Page 2 An approximate determination of the time values is only possible with the help of a calibrated generator, Due to the volume transist orization, the HM 207 is only slightly susceptible to malfunctions. Signs of wear and tear, which are common with tube instruments, hardly occur.
  • Page 3 The bandwidth of the amplifier should correspond to at least 15 times the input repetition frequency, i . e . an exact evaluation of pulse signals is only possible with HM 207 up to repetition frequencies of approx. 500 - 600 kHz. In DC mode, DC voltages can also be measured.
  • Page 4 can only be oscillographed with a divider head (e.g. HZ 30). The exact determination of the measured quantities is possible with the 12-position input divider calibrated in Vss/cm. The magnitude of the applied voltage is determined by multiplying the set value by the image height (in Cm).
  • Page 5 Selection of the deflection frequency and synchronization To make the waveform of the measuring voltage visible, it is necessary to set the time deflection frequency to a value in a certain relation to the measuring frequency. The coarse setting is made at the rotary switch marked "Hor.

  • Page 6: Technical Data

    TECHNIcAL DATA - requency range 0-8 MHZ -3dB Y-amplifier Sensitivity ma x .50 mVpp/cm Rise time approx. 30 ns Overshoot ma x. 2 °/o E ingangst eiler. frequency comp. 12 steps: 0.05-0, 1-0, 2-0,3-0.5- 1-2-3-10-20-30 Vss/cm Input impedance 1MOhm/40 max.perm.GIeichsp.at input 500 V Input switchable AC-GD-DC Tender vert .ma x.
  • Page 7 FR 0 N T B | LD 0 FF I N T E NS. FOC SYNC. VERTAMPL. ł00 K 9D0% 2 00 0,05 SYHC. E X T.
  • Page 8 Divider head HZ 30 If the measurement object is to be loaded only slightly, a frequency- compensated divider head is required. Its input impedance (10 MOh m/pF) also allows measurements on very high voltage sources. The reduction ratio is 10:1. The length of the connecting cable is about m.
  • Page 9 T E I L E R C O P F H Z 3 0 Divider ratio 10 ' 1 Output impedance CO MOh m/15 pF Max. permissible voltage 500 Vpp Frequency range DC - 15 Abgloichtri mrner A b equal instruction Oscil lograph and Rethteck generator with 500 or 100OHz repetition frequency (e.g.
  • Page 11 To avoid damage, a soft base should be used during disassembly and assembly. I f the HM 207 fails completely once, it is usually a defective component. The best way to determine this is to measure all voltages according to the circuit diagram.
  • Page 12 sistors (BF 245A) are selected . As a rule, replacement is also only possible in pairs. Also the transistors of the 2. and 3rd amplifier stage (BF 224) may show only slight differences. An asymmetry caused by a defect can be so great that no beam is visible on the screen.
  • Page 13 be checked. At 2 3 cm image height, no overshoot should be visible. On the other hand, no distortion of the i m age edges should occur. The quality of the reproduced rectangle depends essentially on the quality of the generator. For an exact evaluation, the ri s e time of the generator must not be greater than approx.
  • Page 14 INAN D E ILER ATTE NUAT OR 160V 0.Ty JO 0V 0,0 5 C2 08/ 7 750l'/l°/- 08 7 08£? 110k 820k /1°/" C Sgg ,08 7 0877 200 k -,'.
  • Page 15 Time deflection test Deflection generator and X-amplifier are galvanically coupled. Therefore it is important that the sawtooth voltage output by the generator is exactly ground symmetrical. To check the symmetry the deflection is switched to "ext. and the light point is brought exactly to the center of the screen by means of the "X-Pos.
  • Page 16 Oort, in any case, the work necessary for the proper functioning of the device will be carried out by suitably qualified technicians. Then please send the device to: HAMEG 6 Frankfurt - Niederrad Kelsterbach9FStF .15-17...
  • Page 17 oscittogroph HH 207-" BF 245 A BF 256 BF 3łI BF 24 S A 3 RP 1 A HAI-IEG...
  • Page 18 Č@ Hartmann Frankfurt-Niederrad, Kel8terbacher Stra0e Poatfach 730326 Phone Telex 0413866...

This manual is also suitable for:

Hm 207-3