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1) Maximum Output Voltage (20V source)
The maximum output voltage must be
between 20.3V (minimum) and 21.5V
(maximum).
2) Minimum Output Voltage
With a 2kΩ resistive output load, the
minimum output voltage must be able
to be adjusted down to 25mV (maximum
allowable upper limit) or lower.
3) Current Limit (minimal value)
Current limiting must be adjustable to
10mA, minimum. With output short
circuited, turn the "Imax." trimpot fully
counter-clockwise and adjust current
limiting to 10mA.
4) Current Limit (maximum value)
The maximum current limiting value
must be adjustable to a maximum
between 500 to 550mA. Make the
measurement as described in step 5).
5) Maximum Current and Short-Circuit
Protection
Connect an HM8011-3 Multimeter (set
on the 2A current range) across the
output terminals of one of the two 20V
sources and verify that the maximum
current is greater than 500mA.
6) Overload Indicator
Individually short each of the 20V supply
Sous réserve de modifications / Reservado el derecho de modificación
terminals and verify that the Overload
Indicator illuminates.
7) Residual Ripple and Noise (20V
sources)
Both 20V sources (with a load <500mA)
must have less than 1mV
bandwidth) residual ripple and noise,
observed at the individual output
terminals using an oscilloscope.
8) Residual Ripple (+5V source)
The residual ripple must be less than
5mV
for load currents below 1,000mA
eff
using an oscilloscope at the output
terminals.
9) Adjustment Range (+5V source)
At 1,000mA output current the
adjustment range should be 4.5V to
5.5V (± 0.25V).
11) Internal Resistance (20V sources)
A maximum output voltage deviation of
4mV is permitted for load current
changes of 500mA.
12) Voltage Display Accuracy
1 digit is the maximum deviation over
the 2 to 20V range.
13) Current Display Accuracy
2 digits is the maximum deviation over
the 10 to 500mA range.
(over 100kHz
eff
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