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1. General information
1.1.
1.2.
INTRODUCTION
The Function Generator PM 5127 produces signals in the frequency range 0.01 Hz up to 1 MHz. The
frequency can be set manually or controlled by an external signal. With the external control signal a nominal
frequency sweep of two decades can be achieved.
Three forms of output signal are selectable, viz: sinewave, triangular and squarewave. These signals | can be
produced either with a fixed duty cycle of 0.5 or with an adjustable duty cycle of 0.1 up to 0.9 (=10up
to 90 %).
The open-circuit output voltage is continuously variable up to 30 V -p: Within this range, a d.c. voltage,
adjustable between —10 V and +10 V, can be added to the output signal. The signal output has an impedance
of 50 2 and is short-circuit proof.
A second output delivers a squarewave signal with fixed
TT L-amplitude, adjustable frequency and duty cycle.
TECHNICAL DATA
General Instructions
Only properties expressed in numerical values, with tolerances stated, are guaranteed by the factory.
All specifications will be met after a warming-up period of 30 minutes, in a constant position.
If not stated otherwise, relative tolerances (in % or ppm) relate to the adjusted value.
SPECIFICATIONS
Frequency
Nominal range
Measuring range
Adjustment
Inaccuracy
Additional inaccuracy with DUTY CYCLE
pushbutton selected
Nominal range of FREO OFFSET control
Temperature coefficient (in nominal
operating temperature range)
Long-term drift within 7 hours
Short-term drift within 15 minutes
Frequency variation
: 0.01 Hz to 1 MHz
: 0.1 Hz to 1 MHz, divided into 7 overlapping sub-ranges
: — dial with linear scale, 0.1 to 10.2
— 7 range-selector switches, x0.1 Hz, x1 Hz to x100 kHz
— FREQ OFFSET control with scale —5 % up to +5 %
> £5 % in range x0.1 Hz
+3 % in ranges x1 Hz to x10 kHz
+5 % in range x100 kHz
: £10 % in all ranges
>-5 % up to +5 %
:
<0.24 %/deg C in range x0.1 Hz
< 0.08 %/deg C in ranges x1 Hz to x10 kHz
<0.16 %/deg C in range x100 kHz
»<0.2%
:<0.1%
:<10 ppm at nominal mains voltage + 15 %
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