2303直流电源Model 2303/2303B/2303-PJHigh Speed Power Supply User’s ManualA GREATER MEASURE OF CONFIDENCEWARRANTYKeithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 2 years from date of shipment. Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskettes, and documentation. During the warranty period, we will, at our option, either repair or replace any product that proves to be defective. To exercise this warranty, write or call your local Keithley representative, or contact Keithley headquarters in Cleveland, Ohio. You will be given prompt assistance and return instructions. Send the product, transportation prepaid, to the indicated service faci……