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Electrical Specifications 1 |
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Output Ratings: |
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Output Voltage 2 |
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0-18 V |
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Output Current 3 |
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0-30 A |
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Output Power |
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540 W |
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Line Regulation: 4 |
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Voltage (0.01% of Vmax + 2 mV) |
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2 mV |
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Current (0.01% of Imax + 1 mA) |
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2 mA |
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Load Regulation: 5 |
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Voltage (0.01% of Vmax + 2 mV) |
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4 mV |
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Current (0.01% of Imax + 5 mA) |
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4 mA |
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Meter Accuracy: |
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Voltage (1% of Vmax + 1 count) |
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0.3 V |
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Current (1% of Imax + 1 count) |
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0.4 A |
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Output Noise & Ripple: |
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Voltage (p-p) (0-20 MHz) |
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45 mV |
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Voltage rms |
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3 mV |
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Current rms 6 |
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50 mA |
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Drift (60 minutes): 7 |
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Voltage (0.15% of Vmax) |
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27 mV |
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Current (0.3% of Imax) |
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90 mA |
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Drift (8 hours): 8 |
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Voltage (0.03% of Vmax) |
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5.4 mV |
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Current (0.05% of Imax) |
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15 mA |
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Temperature coefficient: 9 |
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Voltage (0.015% of Vmax/° C) |
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2.7 mV |
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Current (0.02% of Imax/° C) |
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6 mA |
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OVP adjustment range: (5% to 110% of Vmax) |
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0.9-19.8 V |
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Efficiency: 10 |
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83% |
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Interface Specifications 11 |
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Program Resolution (16-bit): |
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Voltage |
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0.30 mV |
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Current |
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0.50 mA |
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OVP |
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0.30 mV |
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Program Accuracy: |
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Voltage (0.2% + 10 mV) |
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75 mV (+/- 0.12%) |
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Current (0.3% + 10 mA) |
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140 mA (+/- 0.1%) |
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OVP (0.5%) + 100 mV) |
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200 mV |
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Readback Resolution (16-bit): |
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Voltage |
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0.30 mV |
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Current |
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0.50 mA |
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Readback Accuracy: |
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Voltage (0.2% + 20 mV) |
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75 mV (+/- 0.12%) |
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Current (0.3% + 20 mA) |
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140 mA (+/- 0.1%) |
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1. All electrial specifications are represented at full operating temperature range for all models, unless otherwise stated. |
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2. Minimum output voltage is <0.15% of rated voltage at zero output setting. |
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3. Minimum output current is <0.2% of rated current at zero setting when measured with rated load resistance. Front output current limited to 30 A maximum. |
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4. For input voltage variation over the AC input voltage range, with constant rated load. |
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5. For 0-100% load variation, with constant nominal line voltage. |
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6. Current mode noise is measured from 10% to 100 % of rated output voltage, full current. |
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7. Maximum drift over 60 minutes with constant line, load and temperature, after power up. |
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8. Maximum drift over 8 hours with constant line, load and temperature, after 30 minutes warm-up. |
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9. Change in output per ° C change in ambient temperature, with constant line and load. |
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10. Typical efficiency at 120 V and full output power. |
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11. Interface specifications at 25° C +/- 5° C, nominal line input at 120 VAC.
Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 18-30 power supply to 10 volts. The expected result will be within the range of 10 volts +/- 75 mV +/-
0.12% of the set voltage of 10 volts.
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General Specifications |
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Operational AC input voltage |
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84-264 VAC, 47-63 Hz; power factor corrected. Derate maximum output power to 450 W for AC input less that 95 V. |
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Maximum Input Current |
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7 A maximum at 100 VAC, 6 A maximum at 120 VAC, 3 A maximum at 220 VAC |
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Power Factor |
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0.98 minimum for full load at nominal voltage |
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Input Harmonic Distortion |
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Current harmonics meet IEC 1000-3-2 |
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Switching Frequency |
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125 kHz (250kHz output ripple) |
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Time Delay |
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3 s maximum, from power on to output stable |
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Voltage Mode Transient Response Time |
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1 ms for output voltage to recover within o.5% of its previous level after a step change in load current of up to 50% of rated output |
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Maximum Voltage Differential |
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+/-300 VDC from output to safety ground |
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Remote On/Off and Interlock |
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5-15 V signal or TTL-compatible input, selectable logic. TTL input impedance: 2 k (in series with one diode drop) |
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Remote Analog Programming (Full Scale Input) |
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Voltage and current programming inputs (sources must be floating): 0-10 V (default) voltage sources. Input imedance (V and I): 20 k. |
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Remote Programming and Monitoring Accuracy |
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1% of full scale output for the default range |
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Operating Temperature Range |
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32° F to 122 ° F (0° C to 50° C) |
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Storage Temperature Range |
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-40° F to 185° F (-40° C to 85° C) |
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Humidity Range |
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Up to 95% RH, non-condensing |
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Front Panel Voltage and Current Control |
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10-turn voltage and current potentiometers |
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Front Panel Voltage Control Resolution |
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0.02% of maximum voltage |
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AC Input Connector Type |
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IEC 320 connector, appropriate power cord provided for destination country |
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Main Output Connector |
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Front panel: 5-way binding posts. Maximum current limit 30 A; Rear Panel: 7.5-18 V models: Bus bars; 33-120 V models: wire clamp connectors. |
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Weight (one unit) |
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9.0 lb (4.1 kg) |
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Dimensions (H x W x D) |
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5.2 x 4.2 x 13” (134.7 x 109.2 x 330 mm) |
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Options |
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GPIB-XPD |
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GPIB Interface card (16-bit) |
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RS-232-XPD |
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RS-232 Interface card (16-bit) |
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RM-XHS |
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19-inch rack mount kit for up to four XPD, HPD or XT power supplies |
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Regulatory Approvals |
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CE-marked units meet: EN61010-1, EN61000-6-2 and EN61000-6-4; CSA C/US certified to UL3111-1 and CSA C22.2 No 1010.1; Meets USA EMC standard: FCC, part 15B, class A; Meets Canadian EMC standard: ICES-001, Class A. |
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Note: Specifications subject to change without notice. |
To compare models, please download the XPD 500 W Data Sheet. |
