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Main Features: Output voltage indication error, ± 0.3 V Output current indication error, ±0.06 A Instability of the output voltage due to changes in the supply voltage, 0.05% Instability of the output current from a change in the supply voltage, 0.2% Instability of the output voltage when the load current changes, 0.1 % Instability of the output current when the load voltage changes, 5.0 % Output voltage ripple, mV 1.0

Technical specifications: Indicator name, unit of measurement, Indicator value, B5-89, B5-89/1 The range of the output voltage setting, the limits of the absolute error of the output voltage setting:- basic error, In; - in operating conditions, In, from 0 to 30.0 ± 0.2± 0.3, from 0 to 100.0 ± 0.3± 0.45 The range of the output current setting, the limits of the absolute error of the output current setting:- basic error, A; - in operating conditions, A, from 0 to 10.0 ± 0.2± 0.3, from 0 to 3.0 ± 0.1± 0.15 Instability of the output voltage when the supply voltage changes by ± 10% of the nominal value in the voltage stabilization mode, %, ± 0.05, no more, Instability of the output current when the supply voltage changes by ± 10% of the nominal value in the current stabilization mode, %, ± 0.2, no more, Instability of the output voltage when the load current changes at the output terminals of power supplies in voltage stabilization mode, %, ± 1, no more, Instability of the output current when the load voltage changes in the current stabilization mode at minimum load currents, %, ± 5, no more, Instability of the output current when the load voltage changes in the current stabilization mode at maximum load currents, %, ± 0.5, no more, Output voltage ripple in voltage stabilization mode, mV, 1.0, no more, Output current ripple in current stabilization mode, %, 1, no more, Instability of the output voltage from time, V, ± 0.5, ± 1.0 Instability of the output current from time, A, ± 0.3, ± 0.2 AC power supply: - voltage, V; - frequency, Hz, 230 ± 2350 ± 0.5, Weight, kg, 13.0, no more, Overall dimensions, mm, 384x301x169

Technical specifications: B5-78 (15 V, 3 A); B5-78/1 (30 V, 2 A); B5-78/2 (50 V, 1 A); B5-78/4 (20 V, 1.5 A); B5-78/6 (30 V, 4 A); B5-78/7 (50 B, 2.5 A) Voltage measurement error: ±0.3 V Current measurement error: ±(0.04–0.06) A Voltage instability when the load current changes 0.03% Instability of the current when the voltage changes at a load of 0.2% Voltage ripple 0.5–1 mV Current ripple 0.1% Power consumption 90 - 320 VA Two 3-digit indicators (voltage, current) Adjustments are rough, smooth Dimensions 115x185x360 mm Weight: 3.7 kg (B5-78, B5-78/1, B5-78/2) 3 kg (B5-78/4) 5.5 kg (B5-78/6, B5-78/7) Power supply ~220 V A

The device is capable of operating both independently and as part of automated measuring systems with USB and IEEE-488 interfaces (CPC). Technical specifications Frequency range from 100 kHz to 37.5 GHz VSWR input of the device with a matching fixed attenuator attenuation of 10 dB, depending on the frequency range, no more • from 100 kHz to 180 MHz 1.15 • from 0.18 to 2 GHz 1.25 • from 2 to 12 GHz 1.30 • from 12 to 17.85 GHz 1.50 • from 17.85 to 37.5 GHz 2.00 Operating temperature range from 5 to 40 °C AC power supply 220 V, 50 Hz Power consumption, no more than 125 VA Overall dimensions, mm 216x493x508.5 Weight, not more than 32 kg