(defined as destination local currency price, or U.S. or Geneva Export price). If Keysight is unable, within a reasonable time, to repair or replace any product to condition as warranted, the Customer shall be entitled to a refund of the purchase price upon return of the product to Keysight.
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Keysight Technologies assumes no liability for the customer's failure to comply with these requirements.
REGULATORY MARKINGS The CSA mark is a registered The CE marking is a legal compliance marking of the European Community. trademark of the Canadian Standards This CE marking shows that the Association. product complies with all the relevant European Legal Directives.
DECLARATION OF CONFORMITY The Declaration of Conformity (DoC) for this instrument is available on the Keysight Web site. You can search for the DoC by its product model or description at the web address below. http://www.keysight.com/go/conformity If you are unable to search for the respective DoC, please contact your local Keysight representative.
A serial number identifies your power supply. The serial num- DESCRIPTION ber encodes the country of manufacture, the week of the lat- The Model E3620A Dual Output Power Supply is a compact, est significant design change, and a unique sequential constant voltage/current limiting supply that delivers two iso- number.
If damage is found, a claim should The instrument is shipped ready for bench operation. Before be filed with the carrier. The Keysight Technologies Sales and applying power to the supply, please read the INPUT POWER REQUIREMENTS paragraph.
The power supply is equipped at the fac- tory with a power cord plug appropriate for the user's location. Notify the nearest Keysight Sales and Service Office if the appropriate power cord is not included with the supply.
Each output control (V1 and V2) must be adjusted in order to obtain the total output voltage. Diodes connected The dual outputs of the E3620A can be used individually, in internally across each output protect the supply's output filter series, or in parallel.
LOAD CONSIDERATIONS OUTPUT CAPACITANCE An internal capacitor across the output terminals of the supply This section provides information on operating your supply helps to supply high-current pulses of short duration during with various types of loads connected to its output. constant-voltage operation.
PERFORMANCE TESTS than a load resistor. It eliminates the need for connecting resistors or rheostats in parallel to handle the power, and it is The following paragraphs provide test procedures for verify- much more stable than a carbon-pile load. It is easier to ing the power supply's compliance with the specifications of switch between load conditions as required for the load regu- Table 1.
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g. Push the V1 METER switch in to monitor the V1 supply's output current. h. Close the load switch and adjust V1 VOLTAGE control until front panel ammeter indicates 1.000 A. Check that DVM indicates a voltage drop across the cur- rent sampling resistor that corresponds to a current of 1 amp ±(0.5% + 2 counts) (0.993 A to 1.007 A).
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Load Transient Response Time Definition : This is the time for the output voltage to return to within a specified band around its voltage following a change from full load to half load or half load to full load. To measure the load transient response time: a.
Figure A-7. Load Transient Response Time Waveform TROUBLESHOOTING ADJUSTMENT AND CALIBRATION Before attempting to troubleshoot the power supply, ensure Current Limit Adjustment that the fault is with the supply and not with an associated To adjust the current limit circuit in the V1 or V2 supply, pro- piece of equipment.
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Meter Calibration Voltmeters. To calibrate voltmeter, proceed as follows: Ammeters. To calibrate ammeter for V1 and V2 supplies, a. Connect DVM across V1 + and - output terminal. proceed as follows: b. Turn on the supply and push V1 METER switch in. a.
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Or visit the Keysight World Wide Web at: www.keysight.com/find/assist Product specifications and descriptions in this document are subject to change without notice. Always refer to the English version at the Keysight Web site for the lat- est revision.
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