Electro-Voice Dx38, Руководство по обслуживанию, Страница: 9 / 43

2
6. Distortion
6.1 THD+N [4] fig. 2 , fig. 3 20 Hz ... 20 kHz < 0.01 % @ +10 dBu
7. Interference Voltages
7.1 Wide Band Noise Voltage [5]
≤
50 µV = -84 dBu
7.2 Noise Voltage (CCIR 468-3) [6]
≤
140 µV = -75 dBu
7.3 Noise Voltage (A-weighted) [7]
≤
18 µV = -93 dBu
8. Retrofitting Input Transformers
Retrofitting input transformers NRS 90244 results in the change of the following values:
8.1 THD+N [4] figure 4 70 Hz ... 20 kHz < 0.01 % @ +10 dBu
THD+N [4] figure 4 20 Hz ... 20 kHz < 0.05 % @ +10 dBu
9. Other Specifications
9.1 Operation Temperature Range +5 ... +40 °C
9.2 Temperature Range During Storage And Shipment -40 ... +70 °C
10. Dimensions And Weight
10.1 Dimensions W x H x D 19" (483 mm) x 1 HU (43,6 mm) x 374 mm
10.2 Installation Depth Without Connectors 356 mm
10.3 Installation Depth Incl. Connectors approx. 430 mm
10.4 Weight 5 kg
10.5 Weight with 2x NRS 90244 5.2 kg
11. Standards
11.1 Safety Class according to EN 60065 safety class I, grounded
11.2 Electrical Safety In Accordance To EN 60065 (VDE 0860) or IEC 65
UL, CSA
11.3 EMC In Accordance To EN 50081-1, EN 50082-1, EN 55022-B
12. Retrofiting-Kits
12.1 NRS 90244 input transformer for 1 input Order No. 112 757
12.2 NRS 90246 contact closure interface Order No. 112 766
12.3 NRS 90247 RS-485 interface Order No. 112 767
13. General
13.1 The following equipment had been used for measuring:
Digital Multi-Meter PM 2517 X Philips
System One Audio Precision
Oscilloscope 2465 A Tektronix
Regulation de-coupling transformer RT 5A Grundig
Watt-Meter (electronical) Dynacord