USER'S MANUAL
Contents
1. 6 Negative output terminal 7 Power ON OFF switch 4 Coarse adjustment of output voltage OO 2 2 OPERATING PROCEDURE 5 6 7 2 2 1 For constant voltage mode adjust controls 3 clockwise to the maximum position Switch on the power ON OFF switch 7 and adjust controls 4 to set the desired output voltage Connect the load to the output terminals 5 amp 6 2 2 2 For constant current mode adjust controls 4 clockwise to the maximum position Adjust controls 3 anti clockwise to the minimum position Switch on the power ON OFF switch 7 and connect the load to the output terminals 5 amp 6 Adjust controls 3 to set the desired output current 2 2 3 For restricted current protection mode switch on the power ON OFF switch 7 adjust controls 3 anti clockwise to the minimum position adjus controls 4 clockwise to set the desired output voltage level and then connect the load to the output terminals 5 amp 6 Adjust controls 3 clockwise to set the output current at the desired level for restricted current protection A 3 ATTENTION 3 1 In the event of a short circuit at the output the current will limit at the value set by the current controls however the unit should be turned off and the short circuit removed before continuing use sA 3 2 The mains power must be switched off before servicing and servicing should be referred to a qualified person 3 3 The unit should be stored in2. a dry and well ventilated place and the power cord removed if storing for long periods 4 ACCESSORIES 4 1 Power cord 4 2 Instruction manua one piece one piece
3. USER S MANUAL DC REGULATED POWER SUPPLY C DC POWER SUPPLY BRIEF INTRODUCTION The HY1500 and HY1800 series variable DC power supply are very stable regulated DC power supplies allowing continuous adjustment of both the output voltage and output current levels The HY1500 and HY1800 series have LCD displays the HY1500C and HY1800C have analogue displays MODELS HY1502C HY1503C HY1802C HY1803C HY1505C ODEL y HY1502D HY1503D HY1802D HY1803D HY1505D REGULAR OUTPUT 0 15V 0 15V 0 18V 0 18V 0 15V VOLTAGE REGULAR OUTPUT 0 2A 0 3A 0 2A 0 3A 0 5A CURRENT 1 TECHNICAL PARAMETERS 1 1 Input voltage 220V 110V AC 10 50Hz 60Hz 2Hz 1 2 Line regulation CV lt 0 01 1imV CC lt 0 2 1MA 1 3 Load regulation CV lt 0 01 3mV I lt 3A CC lt 0 2 3mA I lt 3A CV lt 0 01 5mV I gt 3A CC lt 0 2 5mA I gt 3A 1 4 Ripple and noise CV lt 0 5mVr m s IS3A CC lt 3mAr m s I lt 3A CV lt 1 0mVr m s I gt 3A CC lt 6mAr m s I gt 3A 1 5 Protection constant current and short circuit protection 1 6 Voltage indication accuracy LED LCD 1 2digits analogue display 2 5 1 7 Current indication accuracy LED LCD 2 2digits analogue display 2 5 1 8 Environment 0 40 C relative humidity lt 90 2 OPERATION 2 1 Front panel controls 1 Current indication 1 2 Voltage indication 3 Coarse adjustment of current O 5 Positive output terminal 2 O
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