MODEL DG535 Digital Delay / Pulse Generator - SLAC

SAFETY AND PREPARATION FOR USE******CAUTION******This instrument may be damaged if it isoperated with the LINE VOLTAGESELECTOR set for the wrong ac line voltageor if the wrong fuse is installed.LINE VOLTAGE SELECTIONThe DG535 operates from a 100V, 120V,220V or 240V (50 or 60 Hz) ac power source.Before applying a power source, verify thatthe line voltage selector card (located in therear panel power entry module) is in thecorrect position. The selected voltage may beseen through the clear window by viewing thepower entry module from below.To change the line voltage selection, removethe line cord, slide the window to the right,and pull the "fuse pull" lever out. Verify thatthe correct fuse is installed for the ac linevoltage: 1 Amp for 100 or 120V, and 1/2 Ampfor 220 or 240V. Pull out the line voltageselector card with a pair of needle nose pliers,and insert it with the correct line voltagefacing the bottom of the instrument andtowards the line cord. Verify that the correctline voltage can be seen through the slot that isjust above thefuse holder. Push the fuse holderback in, and install the correct fuse. Slide thewindow to the left, and replace the line cord.LINE CORDThe DG535 uses a three wire power cord forconnection to the power source and to aprotective ground. The exposed metal parts ofthe instrument are connected to the outletground: to protect against electrical shock,always use an outlet which has a properlyconnected protective ground.To avoid shock or injury do not removeproduct covers or panels. Do not operate theproduct without all covers and panels in place.CONNECTION TO OTHERINSTRUMENTSAll front panel BNC shields are connected tothe chassis ground and to the power outletground via the power cord. Do not apply anyvoltage to either the shields or to the outputs.The outputs are not protected againstconnection to any potential other than ground.v