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LTW315
Megger LTW315 Wire Loop Tester Manuals
Manuals and User Guides for Megger LTW315 Wire Loop Tester. We have
1
Megger LTW315 Wire Loop Tester manual available for free PDF download: User Manual
Megger LTW315 User Manual (28 pages)
LTW300 Series, Earth Loop testers
Brand:
Megger
| Category:
Test Equipment
| Size: 2 MB
Table of Contents
Safety Warnings
2
Table of Contents
3
Introduction
4
General Introduction
5
Unpacking the Carton
5
LCD Display
6
Top Panels
7
Additional Controls on the LTW335
8
Keypad Controls
8
Range Knob Controls
8
Connection Panel
9
Lid Open/Closure
9
Preparations for Use
10
Preliminary Test Lead
10
Ingress Moisture
10
General Operating Instructions
10
Backlight Operation
10
Test Leads
10
Test Lead Connection
11
Loop Testing
12
Description of Test Methods
12
No-Trip Test (All Instruments)
12
Symbols Used During a Normal Loop Test
12
High Current Test (All Instruments)
13
High Resolution Test (LTW425 Only)
13
Performing a Loop Test
13
Non-Tripping Loop Test (no TRIP)
13
No-Trip Testing Using the Mains Socket Test Lead
13
Phase to Earth Loop Test
13
Phase to Neutral Loop Test
13
No-Trip Loop Testing Using the RED/GREEN Test Lead
14
Phase to Earth Loop Test
14
Phase to Neutral and Phase to Phase Loop Testing
14
Earth Bonded Metalwork Testing
14
High Current Loop Test
14
High Current Phase to Neutral Loop Test
14
High Current Phase to Phase Loop Test
15
High Resolution Loop Test (LTW425 Only)
15
Prospective Fault Current Display (PFC)
15
PFC Measurement
15
Possible Source of Error
15
Maxz (LTW325, LTW335 and LTW425)
16
Diriving R1 + R2 (LTW325, LTW335 and LTW425)
16
Measuring Zref
17
Voltage and Frequency Measurement
17
Phase to Earth and Phase to Neutral Voltage and Frequency Measurement
17
Phase to Phase Voltage and Frequency Measurement
17
Saving and Downloading Test Results (LTW335 Only)
18
Storing LOOP Test Results
18
To Store a Result
18
To Store Subsequent Result
18
To Recall Test Result
18
Downloading Results to a PC
19
Deleting Test Results
19
SETUP Menu
20
Setup Option Selection
20
Fused or Long Test Lead Length
20
Backlight Brightness Adjust
21
Warning and Status Messages
22
Loop Test Inhibit or Premature Termination of a Loop Test
22
Replacing Batteries and Fuses
23
Low Battery Warning Symbol
23
Procedure to Replace Batteries
24
Fuse Blown Indicator
24
Auto Power down
24
Preventative Maintenance
24
Technical Specification
25
Accessories
26
Repair and Warranty
27
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