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VR2250
User Manuals: Thorne & Derrick VR2250 Instruments
Manuals and User Guides for Thorne & Derrick VR2250 Instruments. We have
1
Thorne & Derrick VR2250 Instruments manual available for free PDF download: Instruction Manual
Thorne & Derrick VR2250 Instruction Manual (107 pages)
Brand:
Thorne & Derrick
| Category:
Measuring Instruments
| Size: 0 MB
Table of Contents
Table of Contents
2
1 Safety Precautions and Procedures
5
Forward
5
Preliminary Instructions
5
During Use
6
After Use
6
2 General Description
7
Introduction
7
Functions
7
3 Preparation for Use
8
Inspection
8
Power Supply
8
Calibration
9
Storage
9
4 Instrument Description
10
Display Description
11
Initial Screen
11
Backlight Function
11
5 Initial Settings
12
How to Adjust the Contrast
12
How to Set Date and Time
12
How to Set the Language
12
Reset
13
6 Safety Test Functions
14
LOWΩ: Continuity Test with 200Ma Test Current
14
Calibrating the Test Leads ("CAL" Mode)
15
Measurement Procedure
17
Results of "AUTO" Mode
17
Results of "RT+" and "RT-" Modes
18
AUTO", RT+", "RT-" Faulty Cases
18
MΩ: Insulation Resistance Measurement with 50V, 100V, 250V, 500V, 1000V Test Voltage
20
Measurement Procedure
20
Results of "MAN" Mode
22
Results of "TMR" Mode
23
MAN" and "TIMER" Mode Faulty Cases
24
RCD: Test on "A" and "AC" Type Rcds
25
Tripping Times for the General and Selective Rcds
27
Measurement Procedure
28
RCD Faulty Cases
33
LOOP : Measurement of Line Impedance, Fault Loop Impedance, Prospective Short Circuit Current Calculation and Phase Sequence Indicator
38
Measurement Procedure and Results of "P-N" Mode
39
Measurement Procedure and Results of "P-P" Mode
40
Measurement Procedure and Results of "P-PE" Mode
41
Measurement Procedure and Results of " R " Mode
43
Measurement Procedure and Results of " " Mode
44
LOOP Faulty Cases
45
EARTH: Soil Resistance and Resistivity Measurements
50
Measurement Procedure and Results of "2-W"And "3-W" Mode
51
Measurement Procedure and Results of "Ρ" Mode
52
2-W", "3-W" and "Ρ" Faulty Cases
53
Leakage Current: Real Time Measurement
56
Leakage Current: Recording
58
AUX Basic Setting: RECORDER CONFIG
58
RECORDING: Setting of Typical Configurations
60
7 Analyzer
61
Basic Setting: ANALYZER CONFIG
62
Type of Electrical System under Test
62
How to Set the Fundamental Frequency
62
How to Set the Current Range
62
Clamp Type
62
How to Set the Value of the Transformer Voltage Ratio (TV RATIO)
62
How to Enable/Disable the Password
63
Basic Setting: RECORDER CONFIG
64
Analyzer Functions
71
VOLTAGE" Function
71
Symbols
71
METER" Mode
72
HARM" Mode
73
WAVE" Mode
74
CURRENT" Function
75
Symbols
75
METER" Mode
76
HARM" Mode
77
WAVE" Mode
78
POWER" Function
79
Symbols
79
METER" Mode
80
WAVE" Mode
81
ENERGY" Function
82
Symbols
82
METER" Mode
83
Measuring Procedures
84
Using the Instrument in a Single Phase System
84
Using the Instrument in a Three Phase System
85
8 Saving Results
86
Saving Safety Test Results
86
Saving Displayed Values of ANALYZER Function
86
9 Recordings
87
Start a Recording
87
Setting Typical Configurations
88
Default Configuration
88
Typical Configurations
89
During a Recording
93
MENU Key
93
Rotary Switch During a Recording
94
Stopping a Recording or an Energy Measurement
94
10 Instrument Memory
95
Safety Test Memory
95
Analyzer Memory
96
11 Connecting the Instrument to a Pc
97
12 Maintenance
98
General Instructions
98
Battery Replacement
98
Instrument Cleaning
98
End of Life
98
13 Technical Specifications
99
Technical Features
99
ANALYZER and AUX Functions
101
Standards
102
General
102
Safety Test
102
Analyzer
102
General Specifications
103
Mechanical Data
103
Power Supply
103
Display
103
Memory
103
Environment
103
Accessories
104
14 Service
105
Warranty
105
15 Appendix 1 - Messages Displayed
106
16 Appendix 2 - Recordable Parameters: Symbols
107
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