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AT31
ALL-TEST PRO AT31 User Manual
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©2011,
ALL
-TEST
P
ro,
LL
C
rev 2011-
11F
A
LL
-TEST
Pro
, LLC
ALL-TEST
PRO® 31
2
Table of Contents
Table of Contents
3
Introduction
5
Safety
6
Instrument Warnings and Considerations
6
General Safety Considerations
6
ALL-TEST PRO® 31 Kit Components
7
Instrument Operation
7
Input Section
7
Display Section
8
Indicator Light Section
8
Display Screen
8
Keypad Section
9
Instrument Test Leads
10
Testing a Three Phase Induction Squirrel Cage Motor
11
Operating Procedure 3-Phase Motors
11
Winding Test
11
Turn the Instrument on
12
Select the Motor Test
12
Observe/Record the Test Data
12
Error Codes
13
Continue with Other Phases
14
Continue with Last Phase
15
Phase Balance Test
17
Insulation Resistance Testing
20
Rotor Test
22
Bar Test
22
Wave Form Test
23
Changing the Motor Test Frequency
24
Additional Functions and Features
26
Electro-Magnetic Interference (EMI)
26
Resetting the Unit
27
VI. Charging Your ALL-TEST PRO® 31
28
Charging Your ALL-TEST PRO® 31
28
Data Interpretation Three Phase Motors
29
Data Interpretation Tables
29
Additional Data Interpretation Considerations Three Phase Motors
30
Test Location
30
Rotor Windings
30
Confirming Suspected Winding Shorts
30
Method 1: Rotor Compensation
31
Method 2: Variable Frequency Test
31
DC Motor Testing
32
Testing an Assembled DC Motor
33
Series DC Motor
33
Compound or Shunt DC Motor
33
Testing Shunt Field
33
Armature Testing
33
DC Motor Analysis
34
Additional Test Methods
35
Wound Rotor Motors
35
Wye-Delta Motors
35
Capacitor Testing
36
Tech Support and Information
37
Available Accessories for the ALL-TEST PRO® 31
37
Training Class
37
5
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ALL-TEST PRO AT31 Specifications
General
Category
Measuring Instruments
Voltage Range
600 V AC/DC
Temperature Range
-20°C to 60°C
Display
LCD
Connectivity
USB
Model
ALL-TEST PRO AT31
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