Elenco | RS500 | Owner Manual | Elenco RS500 1 Watt Resistor Substitution Box Owner Manual

Elenco RS500 1 Watt Resistor Substitution Box Owner Manual
RESISTANCE SUBSTITUTION BOX
Schematic Diagram
Model RS-500
Green
Green
REV-B
150 Carpenter Ave.
Wheeling, IL 60090
(847) 541-3800
elenco.com
e-mail: elenco@elenco.com
Instruction Manual
Copyright © 1992 Elenco Electronics, Inc.
REV-E
Revised 2018 753255
INTRODUCTION
The RS-500 Resistance Substitution Box is a convenient
instrument for determining the desired resistance values in circuits
under design or test. The resistance obtainable is from 0W to
11,111,110W in 1 ohm steps. All resistors are precision 1%
resistors.
OPERATION
All of the resistors are wired in series. A switch on the front panel
shorts each resistor. Putting the switch in the ON (up) position
removes the short and places the resistor across the output
terminals. The two green binding posts serve as the output
terminals. To place any resistance across the output terminals turn
ON those switches that add up to the desired resistance.
For example, for 5,071W, turn on the 3kW, 2kW, 40W, 30W and 1W
switches.
TWO YEAR WARRANTY
All Elenco models are guaranteed for two full years
on all parts and service. For the first 3 months,
your power supply is covered at absolutely no
charge. For the remaining 21 months, a nominal
service charge is required to cover shipping and
handling.
When returning merchandise for repair, please
include proof of purchase, a brief letter of
explanation of problem, and sufficient packing
material. Before returning any merchandise please
call our service department at (847) 541-3800 to
obtain a return authorization number (RMA).
Service Department
PARTS LIST
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Description
1W
1% 1W
2W 1% 1W
3W 1% 1W
4W 1% 1W
10W 1% 1W
20W 1% 1W
30W 1% 1W
40W 1% 1W
100W 1% 1W
200W 1% 1W
300W 1% 1W
400W 1% 1W
1kW 1% 1W
2kW 1% 1W
RESISTORS
Part #
Qty Description
111033
1 3kW 1% 1W
112033
1 4kW 1% 1W
113033
1 10kW 1% 1W
114033
1 20kW 1% 1W
121033
1 30kW 1% 1W
122033
1 40kW 1% 1W
123033
1 100kW 1% 1/2W
124033
1 200kW 1% 1/2W
131032
1 300kW 1% 1/2W
132032
1 400kW 1% 1/2W
133032
1 1MW 1% 1/2W
134032
1 2MW 1% 1/2W
141032
1 3MW 1% 1/2W
142032
1 4MW 1% 1/2W
MISCELLANEOUS
Qty Description
1 PC Board
28 Switch Slide DPDT
1 Front Panel
1 Case
2 Lockwasher, Binding Post
2 Nut, Binding Post
2 Binding Post Green
4 Screw 2mm x 17mm Philips
4 Lockwasher #4 External
4 Rubber Feet
Part #
143032
144032
151032
152032
153032
154032
161031
162031
163031
164031
171031
172031
173031
174031
Part #
517011
541023
614404
623004
625031LW
625031HN
625033
641103
646405
662023
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