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Standard: Q/GMY 029—2020
Version: 5105A-EN-01
Digital Earth Resistance Tester
Instruction manual
MAX
AC200V
ACV
E
P S
( )
C H
( )
Ω
GT5105A
Digital Earth Resistance Tester
MODEL: GT5105A
LOCK
CAT.III 600V
HV
PRESS
TO TEST
TEST
SAVE
HOLD
200Ω
20Ω
2000Ω
EARTH
2000Ω
VOLTAGE
(2WIRES)
OFF
OFF
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Summary of Contents for Benetech GT5105A
- Page 1 MODEL: GT5105A Digital Earth Resistance Tester Instruction manual LOCK CAT.III 600V AC200V PRESS TO TEST TEST SAVE HOLD 200Ω 20Ω 2000Ω EARTH 2000Ω VOLTAGE (2WIRES) Ω GT5105A Digital Earth Resistance Tester Standard: Q/GMY 029—2020 Version: 5105A-EN-01...
- Page 2 CONTENTS 1. Notice before use Check-up 1. Notice before use Check-up--------------------------------- -------- ---(01) Carefully unpack your kit and ensure that you have Introduction and function ---------------------(02) the following items. In case that any items is missing or if you find any mismatch or damage, promptly contact Description of main product components -(03) your dealer.
- Page 3 Name of parts(Figure 1) Introduction This instrument is controlled by intelligent microcontroller chip, with high accuracy and high reliability; it can be used to measure grounding resistance of various power facilities wiring, electrical equipment, lightning protection equipment and other grounding devices, and it can also ③...
- Page 4 Specifications 1.1 Measurement range and measurement error SAVE (under condition of 20℃ + 5℃and≤75%RH) Basic Range Accuracy Resolution Function +(2%+10) 20Ω 0.01Ω Ground 200Ω +(2%+3) 0.1Ω resistance 2000Ω +(2%+3) 1Ω 2000Ω 1Ω +(2%+5) (two wires) LCD Displays(Figure2) Ground 200V +(2%+5) 0.1V voltage 1.2 Application standard:...
- Page 5 1.7 Overload protection: Safety warning Ground resistance: 200V AC (10 seconds) Ground voltage: 400V AC (30 seconds) 1.8 Insulation resistance: The insulation resistance between WARNING measurement circuit and case is not less than 20MΩ Electricity - is dangerous, and can cause personal injury or 1.9 Dimensions: 176mm * 77mm * 110mm death, in order to enable you to use the equipment correctly and safely, please read the warning message and...
- Page 6 CAUTION DANGER ● Do not measure in the flammable and explosive environment, ● Before measurement, make sure the range switch is or sparks may be generated during use, which may cause an explosion. switched to the appropriate position. ● Do not make any measurements while the instrument or your ●...
- Page 7 Measurement method yellow green C:Auxiliary electrode P: Point electrode E:tested electrical end LOCK caveat CAT.III 600V AC200V PRESS TO TEST P(S) C(H) TEST SAVE HOLD When the instrument performs ground resistance function test, 200Ω 20Ω 2000Ω EARTH 2000Ω VOLTAGE (2WIRES) a maximum voltage of about 50V~ will be generated between E-C Tested end s.
- Page 8 Note: If auxiliary 3.2 Simple measurement (measured with provided simple test line): ground nail used by this instrument is bent or touches other By this method, if it is not convenient to use auxiliary ground nail, things, the reading will be affected. When connecting test exposed low ground resistance can be used as electrode, such as lead, be sure to clean auxiliary ground nail first.
- Page 9 3. Other items 4.1.2 Case cleaning Alcohol, diluent, etc. have a corrosive effect on instrument case, Maintenance and warranty especially the window; so when cleaning instrument case, wipe it gently with wet towel. 4.1 Maintenance 4.1.3 Please prevent the instrument from getting wet. 4.1.1 Battery replacement and maintenance (Please refer to Figure 5) If low voltage indicator appears, replace 4.2 Maintenance...
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