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1.

INTRODUCTION

1.1

General

The Simpson 14510-2 Volt-Ohm-Milliammeter (hereinafter referred to as the
14510-2 or the Instrument) is a portable instrument, suitable for the telephone
industries. This instrument is designed for the service person who values true
portability, reliability, simplicity and ruggedness. The Instrument can be ap-
plied in both permanent and mobile installations.

The 14510-2  features reverse safety-style jacks, an easy-to-read dial, a large
range switch knob and an attractive color clutter-free panel.

1.2

Description

The case is made of  high-impact (ABS) plastic and is contemporarily styled.
The Instrument is battery operated for the resistance ranges, and fuse and
diode overload protected, with a self-shielded taut-band movement. The taut-
band suspension provides a high degree of repeatability and is highly resis-
tant to shock and vibrations helping to ensure the accuracy and life of the
Instrument. A handle, attached to the sides of the case, allows the Instrument
to be used in either a vertical or horizontal position. The horizontal position is
preferred for greater accuracy since the Instrument is calibrated in that posi-
tion.

1.3

Items And Accessories

All applicable items and accessories required to operate the 14510-2 are
furnished with the Instrument and are listed in Table 1-1. Additional accesso-
ries are listed in Table 1-2. Available replacement parts are listed in Table 6-1.

Table 1-1. Accessories furnished with the Instrument

Quantity

Description

Number

 1

Test Lead Set

00043

*2

15 Volt Cell, NEDA 208

1-111010

*1

1.5 Volt, D Cell, NEDA 13F

1-111798

 1

Operator’s  Manual

6-114022

* Readily available through local retail stores.

Table 1-2. Additional Accessories

Description

Number

Utility Vinyl Carrying Case

00549

Vinyl Carrying Case

01818

Ever-Redy Vinyl Carrying Case

00805

Deluxe Carrying Case

00812

There are three batteries in the ohmmeter circuits. One is a NEDA 13F cell
that furnishes 1.5 volts for the RX1, RX10, RX100 and RX1000 ranges. Two
are NEDA 208 cells that furnish 30 volts required for the RX10,000 range.
The batteries are readily available and replacement is accomplished easily.
Most of the component parts are mounted on a printed circuit board which

Summary of Contents for 14510-2

Page 1: ...Simpson 14510 2 Volt Ohm Milliammeter OPERATOR S MANUAL...

Page 2: ...rt or Customer Service at 847 697 2260 Internet http www simpsonelectric com Warranty and Returns SIMPSON ELECTRIC COMPANY warrants each instrument and other articles manufactured by it to be free fro...

Page 3: ...nt equipment or general laboratory applications Some high power circuits however are within its measurement range and present an arcing explosion hazard in the event of an unanticipated circuit behavi...

Page 4: ...4 NOTES...

Page 5: ...5 NOTES...

Page 6: ...ts 10 3 CONTROLS JACKS AND INDICATOR 11 3 1 Front Panel 11 4 OPERATION 12 4 1 Safety Precautions 12 4 2 Measuring DC Voltages 14 4 3 Measuring AC Voltages 14 4 4 Measuring Direct Current 15 4 5 Measur...

Page 7: ...n either a vertical or horizontal position The horizontal position is preferred for greater accuracy since the Instrument is calibrated in that posi tion 1 3 Items And Accessories All applicable items...

Page 8: ...atings are 100 V AC or DC or 10 DC amperes These ratings for the test leads must not be exceeded in any application 1 4 Technical Data Table 1 3 lists the Technical Data for the 14510 2 Table 1 3 1 DC...

Page 9: ...sly be applied to the circuits of an instru ment 1 5 Definition Of Accuracy The voltage and current accuracy of the Instrument is commonly expressed as a percent of full scale This should not be confu...

Page 10: ...ligator clips for the test leads are in a polyethylene bag See Section 5 for instructions on how to open the battery compartment and install the bat teries 2 2 Warranty The Simpson Electric Company wa...

Page 11: ...hile others require a multiplying factor 2 Range Switch The range switch has 21 positions It may be turned to any position from either direction There are eleven voltage positions four direct current...

Page 12: ...y be attached to the probe tips Eliminating the need to hand hold test probes to a circuit for extended periods the test clips also reduce hand prox imity to a high voltage circuit while energized Cir...

Page 13: ...certain that someone capable of rendering aid is nearby and aware 8 Do not handle the Instrument its test leads or the circuitry while taking any measurements 9 Be sure to reset the range switch to th...

Page 14: ...ll capacitors have been discharged 3 Connect the black test lead to the negative side of the circuit being mea sured and the red test lead to the positive side of the circuit 4 Turn on the power of th...

Page 15: ...In strument NOTE The voltage drop will not significantly affect most circuits whose cur rent is being measured In some low voltage circuits such as transistor cir cuits it may be necessary to take the...

Page 16: ...rve the Instrument indication It should read 0 on the ohms arc which is at the top of the dial 4 If the pointer does not read 0 rotate the V Adj Zero Adjust Control knob either direction until it does...

Page 17: ...by one of the Authorized Service Centers or by the factory 5 1 Inspection The user is protected from electrical shock by the insulation of the Instrument and the test leads Frequent examination of ea...

Page 18: ...ace the compartment cover If the Instrument still does not operate the internal fuse may be open For access to this fuse the case back must be removed WARNING To avoid electrical shock make certain th...

Page 19: ...ial purpose Replace only with a Littlefuse Type BLS or Bussman type BBS 2 A 600 V 4 Shake the unit gently to make certain that no loose debris is left inside Replace the case back and tighten the four...

Page 20: ...into a warm building Therefore do not attempt high voltage measurements until the Instrument has had time to dry completely 6 SERVICING INSTRUCTIONS An improperly repaired instrument may be dangerous...

Page 21: ...76 R23 Resistor 184 1 1 2 W 1 110271 R24 Resistor 2 02 k 1 1 2 W 1 110270 R25 Resistor 16 8 k 1 1 2 W 1 110292 R26 Resistor 1 21 1 2 Bobbin 10 675499 R27 Resistor 12 22 1 2 Bobbin 10 675201 R28 Resist...

Page 22: ...22 Figure 6 1 Schematic Diagram 14510 2 Volt Ohm Milliammeter 6 2 Schematic Diagram 14510 2Volt Ohm Milliammeter...

Page 23: ...23 NOTES...

Page 24: ...24 SIMPSON ELECTRIC COMPANY 853 Dundee Avenue Elgin IL 60120 3090 847 697 2260 FAX 847 697 2272 Printed in U S A Part No 06 114022 Edition 3 11 02 Visit us on the web at www simpsonelectric com...

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