Extech Instruments 380375 Скачать руководство пользователя страница 2

380375  V1.5  3/04

 

Warranty 

EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects 
in parts and workmanship for one year from date of shipment (a six month limited 
warranty applies on sensors and cables). If it should become necessary to return the 
instrument for service during or beyond the warranty period, contact the Customer 
Service Department at (781) 890-7440 ext. 210 for authorization or visit our website at 
www.extech.com (click on Contact Extech and go to Service Department to request an 
RA number). A Return Authorization (RA) number must be issued before any product is 
returned to Extech. The sender is responsible for shipping charges, freight, insurance 
and proper packaging to prevent damage in transit. This warranty does not apply to 
defects resulting from action of the user such as misuse, improper wiring, operation 
outside of specification, improper maintenance or repair, or unauthorized modification. 
Extech specifically disclaims any implied warranties or merchantability or fitness for a 
specific purpose and will not be liable for any direct, indirect, incidental or consequential 
damages. Extech's total liability is limited to repair or replacement of the product. The 
warranty set forth above is inclusive and no other warranty, whether written or oral, is 
expressed or implied. 

Introduction 

Congratulations on your purchase of Extech’s High Voltage Insulation Tester. This device 
has four voltage test ranges (up to 5kV) and measures insulation resistance to 250G

This professional meter, with proper care, will provide years of safe reliable service. 

Safety 

1.  Circuits under test must be de-energized and isolated before connections are made. 
2.  Circuit connections must not be touched during a test. 
3.  After insulation tests, capacitors must be discharged. 
4.  Test leads (including alligator clips) must be in good working order, clean and without 

broken or cracked insulation. 

5.  When servicing, use only specified replacement parts. 
6. Environmental 

conditions: 

 

Indoor use only; Installation category II 

 Pollution 

degree 

 

Altitude up to 2000 meters 

 

Relative Humidity 80% max.; Temperature 0 to 40

o

International Safety Symbols 

 
 

Caution, refer to this manual before using this meter 
 
 
Dangerous Voltages; risk of electric shock 
 
 
Meter is protected throughout by double or reinforced insulation 

 

Содержание 380375

Страница 1: ...User s Manual Digital High Voltage Insulation Tester Model 380375 ...

Страница 2: ... be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Introduction Congratulations on your purchase of Extech s High Voltage Insulation Tester This device has four voltage test ranges up to 5kV a...

Страница 3: ...inutes Enersave TM mode Shorter test time to conserve battery life Operating conditions 32 to 104 o F 0 to 40 o C 80 RH Storage conditions 14 to 140 o F 10 to 60 o C 80 RH Dimensions 4 7 x 6 7 x 3 7 120 x 170 x 95mm Weight 1 94 lbs 880g Range Specifications Test Voltage Resistance Ranges Short Circuit Current Accuracy Resolution 500V DC 0 to 25 GΩ 1mA 1000V DC 0 to 50 GΩ 1mA 2500V DC 0 to 125 GΩ 1...

Страница 4: ...s and then stop at the Select Test display 3 Select the desired test voltage by pressing the 500V 1KV 2 5KV or 5KV button The screen will briefly display the selected test voltage and then will proceed to the Connect Leads Testing for LIVE display If the circuit is live the display will indicate Live Warning Circuit Live and the meter will beep If this occurs remove the test leads and press the ON...

Страница 5: ...is is particularly useful in determining whether an insulating material under test will break down in a given amount of time Manual Test STOP To stop a test in progress press the ON TEST button The test will immediately end and the system will automatically discharge Automatic Test STOP The test automatically stops after 100 seconds if the meter is not in the Enersave TM mode When in the Enersave ...

Страница 6: ...her components should be checked individually If the motor is disconnected at the motor terminals connect the RED lead to the grounded motor housing and the BLACK lead to one of the motor leads DC Motors 1 Disconnect the motor from the line 2 To test the brush rigging field coils and armature connect the RED lead to the grounded motor housing and the BLACK lead to the brush on the commutator 3 If ...

Страница 7: ...ow will completely test a single phase transformer Note that at least 1 minute should be allowed between each test 1 High voltage winding to low voltage winding and ground 2 Low voltage winding to high voltage winding and ground 3 High voltage winding to low voltage winding pictured below 4 High voltage winding to ground 5 Low voltage winding to ground Testing one conductor to all of the conductor...

Страница 8: ...ry compartment cover 5 Replace the eight batteries ensuring proper polarity 6 Affix the rear cover and secure the rear screw Cleaning Periodically wipe the case with a dry cloth Do not use solvents or abrasives to clean this instrument Repair and Calibration Extech offers complete repair and calibration services for all of the products we sell For periodic calibration NIST certification or repair ...

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