MODULAR SYSTEM 8000 Specifications (Reference Temperature: 23°C ± 1°C) Frequency Range: Frequency Range: 20Hz to 20kHz Range Steps: 3 Decade Steps Variable Frequency Control: 10:1 (overlapping ranges) Distortion Measurement Range: Measurement Range: 0.01% - 50% divided in 2 ranges Full Range: 10% and 100% Resolution: 100% Range: 0.1% 10% Range: 0.01% Accuracy: 100% Range: ±5%±1 digit for k≤10% 10% Range: ±5%±1 digit for k≤1% Residual Distortion and Noise: Distortion Meter HM8027 ≤ 0.5 digit � � � � � Frequency Range: 20Hz to 20kHz Fundamental Rejection: � � � � � Resolution: 0.01%, maximum 30dB greater than measured distortion factor or ≥70dB in the 100% range � � � � � Display: 3 Digit LED or ≥90dB in the 10% range � � � � � Automatic Frequency Fine-Tuning Input Voltage: � � � � � Monitor Output for Distortion Analysis min. for 100% Calibration: 300mV max. for 100% Calibration: 50V Input Impedance: 100kΩ The HM8027 Distortion Meter was developed for the meas- urement of harmonic distortion in the audio frequency range. Due Monitor Output: to its low inherent distortion of 0.005% (1kHz), it is ideally Output Voltage: 1mV/digit suited for tests and measurements of high-grade audio systems. (short circuit proof) Output Impedance: 10kΩ The digital display allows distortion readout with a maximum resolution of 0.01%. In addition, the HM8027 has the option to Attenuators: visually check the residual distortion of the measured signal on (1 pushbutton switch) −20dB an oscilloscope connected to its control output. This feature (1 pushbutton switch) −10dB enables a qualitative evaluation of the reading for signals with (1 continuous variable attenuator) −15dB noise or cross-over distortion beyond the indicated distortion General Information: value. 1 switch selectable high-pass filter 1kHz, Test frequency adjustments are performed via a rotary dial and 12dB/Octave push-button frequency range selectors. The automatic Supply Voltages (from HM8001): frequency fine-tuning with a 15% capture range ensures fast +12V/60mA −12V/60mA and easy operation of the HM8027. +5V/100mA The Distortion Meter HM8027, combined with the Sine Wave (∑ = 1.94W) Generator HM8037, provides a complete test system to be used Operating conditions: primarily in the audio frequency range. The clearly arranged front 0°C to +40°C Max. Relative Humidity: 80% panel assures problem-free operation. Dimensions (without 22-pin flat connector): W135, H68, D228mm Weight: approx. 650g Values without tolerances are meant to be guidelines and represent characteristics Accessories supplied Optional accessories of the average instrument. Operators Manual BNC test cable HZ33, HZ34 Adaptor BNC-Banana HZ20 Subject to change without notice 5/96 31