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Specification
General specifications apply for the temperature range 5°C to 40°C. Accuracy specifications
apply for the temperature range 18°C to 28°C after 1 hour warm-up with no load and calibration at
23°C. Typical specifications are determined by design and are not guaranteed.
MAIN OUTPUTS
Voltage/Current
Ranges:
The 3 operating ranges are: 0V to 35V/0·001A to 3A
0V to 35V/0·1mA to 500mA
0V to 15V/0·001A to 5A
Voltage Setting: Resolution 1mV
Accuracy ± (0·03% + 5mV)
Current Setting: Resolution 1mA; 0·1mA on 500mA range
Accuracy ± (0·2% + 5mA); ± (0·2% + 0·5mA) on 500mA range.
Output Mode: Constant voltage or constant current with automatic cross-over.
CI indicator lit in constant current mode.
Output Switch: Electronic, non isolating. Switch illuminated when Output on.
Preset voltage and current limit displayed when Output off.
Output Terminals: 4mm terminals on 19mm (0·75”) spacing for Output; screwless terminals
for Sense. Duplicate rear panel Output and Sense screw terminals on
remote control model (XDL 35-5TP).
Transient Response:
<50µs to within 15mV of set level for a change in load current from full
load to half load or vice versa.
Voltage Programming
Speed:
Maximum time required for output to settle within 1% of its total
excursion (for resistive load). Excludes command processing time.
Up 15V 5A
Up 35V 3A
Up 35V 500mA
Full Load
6ms
20ms
200ms
No Load
6ms
7ms
40ms
Down 15V 5A
Down 35V 3A
Down 35V 500mA
6ms
25ms
120ms
250ms
600ms
600ms
Ripple and Noise
(20MHz bandwidth):
Normal mode voltage: <0·35mVrms and 2mVp-p
Normal mode current: <0·2mArms; <20µArms on 500mA range.
Load Regulation: For any load change, measured at the output terminals, using
remote sense.
Voltage <0·01% + 2mV.
Current <0·01% + 250µA; <0.01% +50µA on 500mA range.
Add typically 2·5mV for a 0·5V drop in the positive output lead.
Specification applies for sense lead resistance <0·5Ω.
Line Regulation: Voltage <0·01% + 2mV for 10% line change.
Current <0·01% + 250µA; <0.01%+ 50µA on 500mA range.
Temperature
Coefficient:
Voltage: typically <(50ppm + 0·5mV)/°C
Current: typically <(100ppm + 1mA)/°C;
(100ppm + 0·1mA)/°C on 500mA range.
Output Protection: Output will withstand forward voltages of up to 20V above rated output
voltage. Reverse protection by diode clamp for currents up to 3A.
Over-voltage
Protection:
(OVP)
Range 1V to 40V
Resolution 0·1V; accuracy ± (2% + 0·5V)
Response time typically 100µs
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