Radiometric devices >> selective voltmeters, voltage disturbance recorders and instrumentation antennas

UNIPAN 237

49 999 RUB
19 999 UAH
available:
2 pieces

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Voltmeter Unipan 237 (Unipan-237, Unipan237)
Designed for the selective measurement of very small values ​​of the ac voltage range of 1 Hz - 100 kHz.
Error of frequency ± 1%.
Ranges:
The selectivity of an octave (steps) 0-25-40 dB.

Voltmeters Unipan 237 are selective for the selective measurement of very small values ​​of AC voltages in the range of 1 Hz - 100 kHz.

Device Unipan Voltmeter 237 can be used for measuring small values ​​of AC voltages on the background noise and interference to noise and harmonic spectral analysis processes and the harmonic noise processes, as a high balance indicator different bridge circuits alternating current as a measuring amplifier with a bandwidth of 0.3 Hz -300kHz (error -3 dB) for photometric and spectrophotometric measurements using the appropriate converters, for research in the field of solid state physics, nuclear engineering, physical chemistry, and in other areas where it is necessary to measure very small values ​​of physical quantities that can be converted into electrical signals; as broadband microvoltmeter range from 1Hz to 100KHz.
Technical data
The range of frequencies of the device voltmeter Unipan 237 1 Hz-99, 9 kHz. (Fixed-tuned by switching up to the third digit (three decades), overlapped 5 bands). Frequency subbands
1Hz-9 99Gts (through 0.01 Hz)
99-10Hz, 9Hz (after 0.1 Hz)
100Hz-999Gts (at 1 Hz)
1kHz-9 99kGts (in 0.01 kHz)
10 kHz-99, 9 kHz (over 0.1 kHz)
Error of frequency at fixed points - 1%. The boundaries of the normal operating range of frequencies and instrument voltmeter Unipan 237, the device 237 with preamps 233.5,6,7, the device 237 with preamps and transformers 233.7.1,2,3 233.7 correspond to the data given in Table 1.
Measurement range (at full deflection)
Actually instrument voltmeter Unipan 237: 1mkV-3mkV-10mkV-30mkV-100mkV-300mkV; 3mV-1 mV-10mV, 30mV, 100mV.
The device 237 with a preamplifier 233.5: 100nV-10mV;
The device 237 with a preamplifier 233.6: 300nV-30mV;
The device 237 with a preamplifier 233.7: 100nV-10mV.
Voltmeter Unipan 237 preamplifier with 233.7 and the input transformer 233.7.1,2,3 10 nV-300mkV.
Basic measurement error voltage, expressed in% of the provision device in a normal frequency range of measured voltages in the range indicated in Table 1
 
Mode The composition of the device nanovoltmeter Unipan 237 and the range of normal (I) and labor (II) the frequency
Source impedance

Selective
awn

(DB)
233

233

233.5

233

233.6

233

233.7
I II I II I II I II

1 ÷

9.99

1 ÷

9.99

1 ÷

9.99

1 ÷

9.99

1 ÷

9.99

1 ÷

9.99

1 ÷

9.99

1 ÷

9.99
The range of the measured voltages
≤ 50kOm 0

100 ÷

100
           
18

10 ÷

100

30 ÷

100
           
36

3 ÷

100

10 ÷

100
           
54

3 ÷

100

10 ÷

100
           
≤ 100 ohms 0

10 ÷

100
           
18

1 ÷

100

1 ÷

100
           
36

0,3 ÷

100

1 ÷

100
           
54

0,3 ÷

100

1 ÷

100

0,1 ÷

10

1 ÷

10

0,3 ÷

30

1 ÷

30

0,1 ÷

10

1 ÷

10
≤ 10 ohms 54                
≤ 1 ohms 54                
 
Mode The composition of the device nanovoltmeter Unipan 237 and the range of normal (I) and labor (II) the frequency
Source impedance

Selectivity
ABILITY

(DB)

233

233.7
233.7.1

233

233.7
233.7.2

233

233.7
233.7.3
Units of measurement
I II I II I  

2 ÷

0.5

1 ÷

0.5

200 ÷

5

200 ÷

45

20000 ÷

99.9

(Hz)

(KHz)
The range of the measured voltages  
≤ 50kOm 0          

(MV)

(MV)
18          

(MV)

(MV)
36          

(MV)

(MV)
54          

(MV)

(MV)
≤ 100 ohms 0          

(MV)

(MV)
18          

(MV)

(MV)
36          

(MV)

(MV)
54          

(MV)

(MV)
≤ 10 ohms 54

10 ÷

300

30 ÷

300

100 ÷

300

100 ÷

300
 

(NV)

(MV)
≤ 1 ohms 54

10 ÷

300

10 ÷

300

30 ÷

300

30 ÷

300

100 ÷

300

(NV)

(MV)

Photos UNIPAN 237

UNIPAN 237 device image.
UNIPAN 237 device image.
UNIPAN 237 front view.
UNIPAN 237 front view.
UNIPAN 237 side view.
UNIPAN 237 side view.
UNIPAN 237 rear view.
UNIPAN 237 rear view.
UNIPAN 237 overhead view.
UNIPAN 237 overhead view.
UNIPAN 237 bottom view.
UNIPAN 237 bottom view.


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