Spectrum Analyzer SK4-99

The spectrum analyzer is capable of working both independently and as part of automated measuring systems with USB and ETHERNET interfaces. Technical specifications Frequency range from 9 kHz to 20 GHz The basic error of frequency measurement is ± (3-10'7hG + 0.2 Hz) Viewing bands 0; 10 Hz - 20 GHz Bandwidth minus 3 dB from 1 Hz to 8 MHz Self-noise level from minus 156 to 145 dB MW/Hz The basic level measurement error is ± (1.2-1.8) dB The relative level of interference caused by intermodulation distortions of the 3rd order from minus 50 to 65 dB The relative level of interference caused by combination distortions from minus 60 to 80 dB Amplitude scales linear, quadratic, logarithmic (0.1- 20) dB/div The frequency range of the tracking generator is from 1 MHz to 8 GHz Operating temperature range from 5 to 40 °C AC power supply 220 V, 50 Hz Power consumption, no more than 85 VA Overall dimensions, mm 420x213x172 Weight, not more than 8 kg

Functionality ■ Sound level measurement: Class 1 according to GOST 17187-2010, IEC 61672-1 ■ Measures sound pressure levels in octave and third octave frequency bands ■ Has a metal body, resistant to external influences ■ Automatic recording of measurement results in memory ■ Non-volatile memory ■ Telemetry channel, remote control and operation of the device Features ■ Easy setup: one measurement mode, all values are measured simultaneously ■ Easy to manage: all results are grouped in two windows ■ Measurement of sound levels below 20 dBA ■ Affordable solution Application areas ■ Noise control in residential and public buildings ■ Noise control on the territory of enterprises and residential buildings ■ Production control ■ Vehicle inspection Complies with standards: - as a noise meter: GOST 53188.1-2019 (17187-2010, IEC 61672-1), Class 1 - as a spectrum analyzer: GOST R 8.714-2010, IEC 61260 (Class 1) Noise meter mode - Measuring range of sound levels, dBA: from 19 to 150* - Frequency characteristics: A, C, Z, AU, FI, G - Time characteristics: S, F, I, Peak, Leq * When equipped with 50 mV/Pa microphones and 12 mV/Pa Spectrum Analyzer mode with constant relative bandwidth - Frequency range of digital octave filters, Hz: 31.5 - 16000 - Frequency range of digital third-octave filters, Hz: 25 - 20000

The CMS8400 NEO is a compact electron paramagnetic resonance spectrometer designed for routine research in physics, chemistry, biology and related scientific fields for direct detection of free radicals and paramagnetic materials. The CMS8400 NEO can be used in both laboratory and industrial settings in the mode of on-line measurements, embedded in technological processes, thus providing control of parameters and reactions in the production process. Additional accessories and adapted software can make the spectrometer an analytical tool and allow to implement new complex applications in medicine, petrochemistry, brewing, sanitary and hygienic control, as well as in other industries.

Technical specifications: The operating frequency range of the monitored signals is from 9·103 to 3·109 Hz The analyzer has a zero band and a viewing band in the range from 100 Hz to 3 GHz Limits of permissible error of setting the viewing band ± 1 % The scan range is set from 10 ms to 3000 s in all modes except the zero band of view, and from 20 microseconds to 3000 s in the zero band of view mode The bandwidth of the RFP at the level of minus 3 dB is selected in the range from 100 Hz to 1 MHz in increments of 1, 3, 10 The squareness coefficient of the FPC at the level of minus 60 dB / minus 3 dB is not more than 5:1 The reference level setting range is from plus 30 dBm to minus 100 dBm. Installation step 1 dB Limits of the permissible basic error of setting the reference level ± 1 dB The limits of the unevenness of the amplitude-frequency response (frequency response) of the analyzer in the frequency range from 100 kHz to 3 GHz ± 1 dB Maximum allowable input power is 30 dBm (1 W) Limits of the permissible basic error of measuring the signal level due to the nonlinearity of the logarithmic scale ± 1 dB Limits of the permissible basic error of measuring the signal level due to switching of the input attenuator ± 1 dB Limits of error in measuring the signal level due to switching filters, ± 0.2 dB relative to the 1 kHz filter The average level of intrinsic noise at the FPC bandwidth of 100 Hz, the video filter band of 10 Hz and the input attenuator of 0 dB: - in the range from 100 kHz to 20 MHz minus 75 dBm - in the range from 20 MHz to 1.5 GHz minus 110 dBm - in the range from 1.5 to 3 GHz minus 105 dBm The input impedance of the analyzer is 50 ohms The voltage standing wave coefficient (VSWR) of the input with an input attenuator greater than 10 dB, no more: - 1.5 in the frequency range from 10 MHz to 2.5 GHz - 1.8 in the frequency range from 2.5 GHz to 3 GHz Diagonal screen size 21.5 cm Screen resolution 800x480 USB interface Overall dimensions – 398x220x150 mm Weight not more than 6.5 kg