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720A
Amptec Research 720A User Manual
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13231 Roos
ter Spring
s Rd.,
Austin, T
X 78737
T:
(512) 858
-
4045
E:
info@
amptec.co
m
amptec.com
AMPTEC
RESEARCH
MODEL
720A
OPERATI
ON
AND MAI
NTENANCE
MANUAL
2
Table of Contents
Default Chapter
2
Table of Contents
2
Section A: Receiving and Initial Inspection
3
Introduction to AMPTEC 720A Digital Micro-Ohmmeter
3
Unpacking and Inspection
3
Setup and Preparation for Use
4
Section B: 720A Specifications
5
Specifications for AMPTEC 720A Digital Micro-Ohmmeter
5
Specifications for AC Input
5
Specifications for AMPTEC 720A Battery Powered Version (720-BAT)
6
Section C: 720A Compatible Accessory Items
7
Available Accessories and Test Leads
7
Options and Interfaces
7
Carrying Case
8
Section D: Operation, Features, and Use
9
General Use
9
Front Panel Features
9
D-2.1 On/Off Switch
10
D-2.2 Range Switches
10
D-2.3 Display
11
D-2.3.1 Low Battery Indicator
11
D-2.3.2 Overload/Overrange Indicator
11
D-2.4 Banana Jack Terminals
12
D-2.5 Autorange Button and Function Information
12
D-2.6 Unit of Measurement Leds
12
Rear Panel Features
13
D-3.1 Fuse Holder and Fuse Information
13
D-3.2 AC Inlet
14
D-3.3 RS-232C Terminal Block
14
D-3.4 RS-232C Connector
14
D-3.5 Fan, Fan Guard, and Air Intake
15
D-3.6 DC Power Jack
15
Battery Holder Design and Description
15
Test Lead Connections
15
D-5.1 4-Wire Kelvin Information
16
Detailed Use Description
17
Detailed Use Description for RS-232C Function
19
D-7.1 RS-232C Commands and Data Format
19
Section E: Maintenance, Repair, and Calibration
21
General Maintenance, Repair, Calibration Information
21
Returning the 720A to AMPTEC for Maintenance, Repair, and Calibration
21
Basic Troubleshooting
22
E-3.1 Battery Replacement
23
E-3.2 Current Source Diagnostic Test Routine
24
E-3.3 Digital Voltmeter (DVM) Test Routine
24
720A Calibration Procedure Overview
24
E-4.1 Equipment Required to Complete 720A Calibration Procedure
25
E-4.2 Trimmer Potentiometer Adjustment Locations
26
E-4.3 Calibration Procedure Adjustments
27
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Amptec Research 720A Specifications
General
Brand
Amptec Research
Model
720A
Category
Measuring Instruments
Language
English
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