Explicação, anotação:For field measurements of tone channel, ïðåäãðóïïî
âûõ paths and lines of communication in the range of frequencies from 0. 3 to 32 kHz.
Descrição porminorizada da marca:The Ï-321Ì device provides:
- measurement of rest attenuation ( strengthenings);
- measurement of amplitude-frequency characteristics;
- measurement of transducer attenuation of communication lines;
- level measurement in the range of frequencies from 0. 2 to 150 kHz;
- measurement of integrated noise levels in tone channel;
- operation testing of group links at frequencies
62 and 101 kHz.
the Ï-321Ì device may to install in hardware foot loose communication nodes
and hardware maintenance.
technical data:
generator:
1. Significances fixed frequencies, Hz: 300; 400; 600; 800; 1200; 1400;
1600; 2000; 2400; 2697; 3000; 3404; 5000; 8000; 12306; 14118; 16000;
18113 ; 20000; 22326; 23400; 32000; 61930; 101050
2. Basic error on frequency + 0. 001 Hz
3. Range of output level
- at load 600 Omaghs - 45. +18 decibel
- at load 150 Omaghs - 45. + 5 decibels
4. Basic error of output level at frequency 0. 8 kHz + 0. 3äÁ
level meter :
1. Frequency range from 0. 2 to 150 kHz. 2. Range of measured levels - 60. +20 decibel,
3. Device input: 600 Omaghs, 150 Omaghs, highohmic.
the device food is carried out:
- from ac network by the frequency 50 cycles by the voltage 220 in;
- from ac network by the frequency 400 Hz by the voltage 115 in;
- from direct current source by the voltage 27 V.
overall device dimensions 205x255x320ìì.
device mass not more 13 kg. |
