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System meter of small currents. The device allows to make measurements in almost the entire range of currents. The picoammeter is characterized by high performance, which is important for its use as part of automated measuring systems. Technical specifications: Current measuring range 1x10-14 - 1x10-2 A Error for the range 10-11, 10-10 ±[0.5+0.025(lk/lx-1)]% for the range 10-9, 10-8 ±[0.25+0.01(lk/lx-1)]% for the range 10-7, 10-6,10-5, 10-4,10-3, 10-2 ±[0,1+0,01( lk/lx-1)]% The time of setting the readings is 2x10-2 - 2x10-5 s Supply voltage 230 (±20) V, frequency 50 (± 0.5) Hz Power consumption 10 VA Overall dimensions (HxWxD) 105x284x366 mm Weight 3.5 kg Operating temperature 5 - 40 °C Humidity 80% at 25 °C

Technical specifications: Capacitance (10-13-0.02) F, inductance (10-8–16x103) Gn Resistance (10-3–2x107) ohms Conductivity (10-9-10) Cm Q factor, loss factor 10-3-103 The error is ±0.15% Offset voltage 2±0.2 V Measuring signal levels (0.1±0.02) V and (1±0.2) V Range selection: automatic, manual RS-232C interface Dimensions, weight: 90x265x317 mm, 2 kg Power supply: ~220V, 10 VA

Technical specifications: Output constant voltage, 1 - 20 kV Output AC voltage, 1 - 20 kV Measurement of leakage current, from 5 to 20 mA The discreteness of setting the output voltage of DC and AC, V, - in the range from 1000 V to 5000 V, 50 V - in the range from 5000 V to 20000 V, 100 V Error in setting the output voltage, ± 3%

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: Measuring range 20 mv-1000 V Measurement error ± (0.03% +5 E.M.R.) AC voltage Measuring range 1 mV - 700 V Measurement error ± (0.3% +200 E.M.R. - 4% +800 E.M.R.) Frequency range 20 Hz-100 kHz Direct current Measuring range 1 mA - 2 A Measurement error ± (0.12% +10 E.M.R.) Alternating current Measuring range 10 mA - 2 A Measurement error ± (0.6% +300 E.M.R.) Frequency range 20 Hz - 5 kHz

Technical specifications: Extended frequency range 50 kHz–15 MHz The basic error is ±0.2 % The level of the measuring signal is 40 mV – 1 V s.c . Offset voltage (0 – 40) V The discreteness of the operating frequency setting is 1 Hz Graphical analysis of measured values in a given frequency range USB 2.0 interface -100 C to 400 C; humidity 90% at 300 C Dimensions, weight: 270x134x320 mm, 5 kg Power supply ~230 V, 20 VA

Technical specifications: Wide frequency range 25 Hz–3 MHz Capacity (10-15-1) F Inductance (10-11-104) Gn Resistance (10-5-109) Ohms Conductivity (10-11-10) Cm Modulus of complex resistance (10-5-109) ohms Reactance (10-5-109) Om Phase shift angle -90° – +90° Q factor, loss factor 10-4-104 Leakage current (10-8-10-2) A The error is ±0.1% Offset voltage 0 – 40 V (external up to 120 V) Measuring signal level (0.005 – 1) V RS-232C, USB 2.0 interfaces Mathematical processing of measurements Dimensions, weight: 134x270x320 mm, 4 kg Power supply ~230 V, 20 VA

Technical specifications: Frequency range, from 2 Hz to 2 MHz Frequency setting error, ± 1 % Signal amplitude: - at a load of 600 ohms , at least 5 V at least 10 V Smooth signal attenuation, at least 20 dB Frequency instability: - in 15 minutes - for 180 minutes, no more than 0.1% no more than 0.5 % Harmonic coefficient: - in the frequency range from 10 Hz to 20 Hz - in the frequency range sv. 20 Hz to 200 kHz - in the frequency range of 200 kHz to 2 MHz, not more than 0.5% not more than 0.2% not more than 1 %

Technical specifications: reproduction of DC voltage from 50 mv to 1000 V - ranges of 200 mV; 2; 20; 200; 1000 V - error 0.01 – 0.023 % reproduction of the sinusoidal AC voltage from 0.3 mV to 750 V - ranges of 200 mV; 2; 20; 200; 750 V - error 0.15 – 0.225 % - frequency range 20 Hz - 100 kHz (20 Hz - 5 kHz on the range. 200 V; 20 Hz - 2.5 kHz on the range. 750 V) reproduction of DC power from 0.03 µA to 50 A - ranges of 200 Ma; 2; 20; 200 mA; 2; 50 A - error 0.012 – 0.022 % reproduction of AC power of sinusoidal shape from 3 µA to 50 A - ranges of 200 Ma; 2; 20; 200 mA; 2; 50 A - error 0.062 – 0.23 % - frequency range 20 - 5000 Hz (45 - 1000 Hz on the range. 50 A) RS-232C interfaces; USB operating temperature range from + 5 to +40oC dimensions 184.5x465x540.5 mm weight 20 kg power supply ~ 230 V

Technical specifications: Voltage reproduction range Uk 200 mV 0.07 + 0.01 DC: from 50 MV to 600 V, Uk 2 V 0.05 + 0.005 sub-bands (UK) 200 MV; 2; 20; 200; 600 V Uk 20 V 0.05 + 0.005 Basic error, ± (% of U + % of Uk): Uk 200 V 0.07 + 0.01 Uk 600 V 0.1 + 0.02 Voltage reproduction range Uk 200 mV 0.2 + 0.05 AC: from 1 mV to 600 V, sv. 20 to 40 kHz 0.2 + 0.1 sub-bands (Uk) 200 mV; 2; 20; 200; 600 V Uk 2; 20 V 0.15 + 0.02 Basic error, ± (% of U + % of Uk): from 20 Hz to 20 kHz 0.15 + 0.02 Uk 200 V; 600 V: 0.2 + 0.05 from 40 Hz to 1 kHz 0.2 + 0.05 DC power reproduction range: from 1 Ma to 200 mA, sub-bands (Ic) 200 Ma; 2; 20; 200 mA Ic 200 Ma 0.1 + 0.02 Basic error, ± (% of I + % of Ic): Ic 2; 20; 200mA 0.1 + 0.01 Power reproduction range AC: from 10 Ma to 200 mA, sub-ranges (Ic) 200 Ma; 2; 20; 200 mA 0.15 + 0.05 Frequency range from 20 Hz to 1 k Hz Basic error, ± (% of I + % of Ic): USB interface Operating temperature range from minus 10 to +50 C Dimensions; weight 428×327×235× mm; 10 kg

Technical specifications: DC voltage , Measuring range, 10 MV - 1000 V Measurement error, ± 0.03% AC voltage , Measuring range, 1 mV - 750 V Measurement error, ± 0.4% Frequency range, 20 Hz- 100 kHz Direct current , Measuring range, 1 mkA - 2 A (B7-91/1) Measuring range, 1 mkA - 20 A (B7-91) Measurement error, ± 0.03%