Technical characteristics, Supply
Function generator 45
Technical characteristics
General
Only the values assigned announced tolerances or limits make up
guaranteed values. The values with no tolerance are given for information
(standard NFC 42670) and the measurement errors must be considered in
the reference climatic conditions.
The specifications are verified with shielded 50 Ohm BNC cables.
Periodic verification of this measuring instrument is necessary.
Function
generator
Signal forms
• Sinusoidal, triangular, rectangular, positive pulses (TTL level), Direct (DC :
offset) and adjustable logic output from -10 V to +10 V
• Display on LCD of one of the following symbols:
Signal
frequency
• DC 0.1 Hz to 5.1 MHz in 7 linear overlapping ranges (2 % app.)
• Accuracy of the displayed frequency : ± 0,05 % + 1 digit
• Frequency display on LCD : 4 digits (units : Hz, kHz, MHz)
• Adjustment: continuous by the encoder, automatic range switching
• Range adjustment using the "RANGE + " and "RANGE – " keys
• Temperature coefficient: < 0.2 % / °C
• Long term deviation (10 h) : < 0,1 %
• Duty cycle: 50 % (by default), adjustable from 20 to 80 % on one
frequency range from 0.1 Hz to 5.1 MHz at ± 3 %
• Display of the duty cycle (VAR DUTY) at all times
• Display of the DC voltage (OFFSET) superimposed on the output signal
(default : 0 V).
signal output
• Amplitude adjustable in open circuit from 0 to 20 VDC :
from 0,1 to 20 VDC < 5 % from 100 mHz to 1 MHz
< 10 % from 1 MHz to 5.1 MHz
• Impedance : 50 Ω ± 3 Ω
• DC offset voltage : adjustable from -10 V to +10 V in open circuit
(OFFSET) at ± 5 %
• Protection against input overload voltage : 60 VDC, 40 VAC
Sinusoidal signal
• Distortion : for f < 50 kHz, < 0.5 %
for f > 50 kHz, harmonics < -30 dB
• Measurement conditions :
- unit operating for at least 1 hour
- maximum amplitude level
- without 50 Ω load
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