Måleforstærker U (230 V, 50/60 Hz)

Varenummer (SKU): 1020742
4 390 kr. Eks. moms
(5 487,50 kr. inkl. moms)
Levering: 2-6 arbejdsdage 2-6 arbejdsdage Udsolgt
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    Measurement amplifier U amplifies low-amplitude measurement signals from low-resistance signal sources for measurement with any chosen voltmeter or oscilloscope. By using an external shunt resistor it is also possible to measure small currents. Offset voltages can be compensated using coarse and fine offset adjustment knobs. Amplification (gain) can be selected in ranges from 0 to 5 powers of ten. High-frequency noise or other interference signals are filtered out by means of a low-pass filter with step-wise selectable time constants between 0 and 3 seconds. The output voltage has the same sign as the input voltage.

    Input resistance:                             10 kohm
    Output resistance:                          300 ohm
    Offset voltage drift:                          < 2 μV/K (after 15 mins.
    operation approx.)
    Gain factors:                                    100; 101; 102; 103; 104; 105
    Tolerance for gain factors:            < 2.5 %
    Input voltage:                                   max. ±12 V  
    (overload protected for
    brief transients up to 100 V)
    Output voltage:                                0 … ±12 V
    (short-circuit protected)
    Power supply (via
    plug-in supply provided):               12 V AC
    Ambient temperature:                     5°C … 23°C … 40°C
    Storage temperature:                      -20 … 70°C
    Relative humidity:                           <85%
    no condensation
    Operational alignment:                  Horizontal
    Contamination level:                      2
    Protection class:                              IP20
    Dimensions:                                    170x105x50 mm3 approx.
    Weight:                                             335 g approx.

    Measurement and frequency ranges (relative to 1 V output voltage)

    Gain Input voltage Current through
    RShunt = 100 ohm
    Frequency
    100 1 V 10 mA 0 … 25 kHz
    101 100 mV 1 mA 0 … 25 kHz
    102 10 mV 100 µA 0 … 25 kHz
    103 1 mV 10 µA 0 … 20 kHz
    104 100 µV 1 µA 0 … 7 kHz
    105 10 µV 100 nA 0 … 7 kHz

     

    Cut-off frequency for switchable low-pass filter

    Time constant Cut-off frequency
    0.0 s See Table 1
    0.1 s 1.6 Hz
    0.3 s 0.5 Hz
    1.0 s 0.16 Hz
    3.0 s 0.05 Hz

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