GW Instek GFC-8131H Frequency Counter
Features
- Frequency and Period Measurement
- High Resolution at Both High and Low Frequency
- 0.01Hz~1.3GHz Frequency Range(GFC-8131H)
- 10mV rms High Sensitivity
- 100nHz Resolution for 1Hz Input
- Variable Trigger Level Control
Description :
The GFC-8000 Series performs virtuallyall of the counting measurements required in laboratories, in terms of bothperiod and frequency. A bright red 8 digit LED display with an includedoverflow indicator provides a clear view.
Both models feature a stable timebase with a maximum resolution of 100nHz and 10nS at 1Hz for frequency andperiod measurement, respectively.
Gate time can be configured for fast response(5 digits/10ms) or accuracy (7 digits/s) for more control. For high frequencyneeds, the GFC-8270H can operate at up to 2.7GHz. The GFC-8000 Series featureseasy operation with a simple front panel interface, suitable for both portableand bench-top use.
Both models feature a stable timebase with a maximum resolution of 100nHz and 10nS at 1Hz for frequency andperiod measurement, respectively.
Gate time can be configured for fast response(5 digits/10ms) or accuracy (7 digits/s) for more control. For high frequencyneeds, the GFC-8270H can operate at up to 2.7GHz. The GFC-8000 Series featureseasy operation with a simple front panel interface, suitable for both portableand bench-top use.
DISPLAY
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8 digits with Hz, kHz, MHz, GHz, s, ms, μs, and
overflow
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GATE TIME
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Variable from 10ms to 10s, or 1 period of input
depending on whichever is greater
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ACCURACY
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±(resolution ± timebase error)
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CHANNEL A
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Range
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DC coupling: 0.01Hz ~ 120MHz
AC coupling: 30Hz ~ 120MHz
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Sensitivity
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10mV typical, 50mV maximum
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Coupling
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AC or DC, selectable
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Filter
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Low pass, selectable in or out for channel A
(-3dB point, nominal 100kHz)
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Impedance
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1MΩ // 40pF
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Attenuator
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1/1 or 1/20dB
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Trigger Level
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-2.5VDC ~ +2.5VDC
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Adjustment Resolution
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For frequency measurement, the maximum resolution
is 100nHz for 1Hz and 0.1Hz for 100MHz inputs respectively.
For period measurement, the maximum resolution is
10ns for 1Hz input, and 0.1x10-15s for 100MHz inputs respectively.
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Display Accuracy
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7 digits for 1 sec gate time
6 digits for 100ms gate time
5 digits for 10ms gate time
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Period Range
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8ns ~ 100ns (at least 7 digits displayed per gate
time)
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CHANNEL B
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Range
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50MHz ~ 2.7GHz for GFC-8270H
50MHz ~ 1.3GHz for GFC-8131H
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Sensitivity
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<50mVrms
(10mVrms typical) for GFC-8270H
<40mVrms
(10mVrms typical) for GFC-8131H
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Coupling
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AC only
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TIME BASE
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Aging Rate
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1ppm per month
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Temperature
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5ppm, 23°C + 5°C
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Line Variation
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0.005ppm for + 10% variation
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POWER SOURCE
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AC 100V/120V/220V/230V ±10%, 50/60Hz
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DIMENSIONS & WEIGHT
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230(W) × 95(H) × 280(D) mm
Approx. 2.2kg
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