Related Manuals for Elenco Electronics XP-800
Summary of Contents for Elenco Electronics XP-800
- Page 1 POWER SUPPLY MODEL XP-800 TWO AC VARIABLE VOLTAGES; 0-120V and 0-40V @ 7A, PLUS 0-28VDC @ UP TO 10A Instruction Manual Elenco Electronics, Inc. Copyright © 1991 Elenco Electronics, Inc. Revised 2002 REV-I 753206...
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Page 2: Safety Precautions
High voltages may appear at unexpected points in defective equipment. The XP-800 is equipped with a three wire line cord which grounds the chassis to the power line ground. DO NOT CUT OFF OR DISABLE THE GROUND PLUG. -
Page 3: Operating Instructions
If the power supply is overloaded, either the 3 amp or 10 amp circuit breaker may trip. When this happens, the button in the center of the breaker will pop out. To reset the breaker, push the button back in. Both are thermal circuit breakers so you may have to wait a while for the breaker to cool before it will reset. -
Page 4: Circuit Description
CIRCUIT DESCRIPTION As shown in Figure 1, the basic circuits of the XP-800 Power Supply are 1) the power source, 2) the power transformer, 3) the bridge rectifier and 4) the meter circuits. Each of these circuits will be discussed below. - Page 5 METER POWER SUPPLY - The digital meters require +5VDC. This is supplied by the meter power supply consisting of a 7805 regulator IC U2, a step down transformer T3, a diode bridge D4-D7, and filter capacitors C1-C3.
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Page 6: Maintenance And Calibration
1. Connect an accurate digital ammeter and a suitable load to the output terminals. Set the load to draw 5.0 amps on this meter. 2. Adjust R6 on the XP-800 PC board to read 5.0 amps on the XP-800 ammeter. 120VAC - VOLTAGE 1. -
Page 7: Parts List
IC LM-7805 5V 1.5A LED Display Volt LED Display Amp Miscellaneous Transformer YD-1485 Transformer 120-41.5 Transformer Variable Circuit Breaker 3A Circuit Breaker 10A PC Board XP-800 Fuse 5A Switch Rocker Illuminated Switch Rotary 4P3POS Cover Chassis XP-800 Part # Qty. Description... -
Page 8: Schematic Diagram
WARRANTY POLICY Your XP-800 Power Supply has been tested and conforms to our rigid requirements on performance and durability. It is guaranteed to be free of defects in workmanship, materials and construction for a period of 2 years. If this product should fail during normal use within the first 3 months from the date of purchase, Elenco will repair or replace the unit at no cost.
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