Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Sperry instruments 4105
Summary of Contents for Sperry instruments 4105
- Page 1 11/05 Form #273 OPERATING INSTRUCTION MODEL 4105 Disital Earth Resistance Tester 2150 joshua's Path, Suite 302, Hauppauge, NY 11788 Phone : 1-800-645-5398 or 1-639-231-7050 Fax : 1-639-434-3128 • E-mail : cat@awsperrt.com www.awsperry.com 92-1536A...
-
Page 2: Table Of Contents
CONTENTS 1. Safty Precautions The instrument is designed, manufactured, tested and shipped in prime 1. Safety Precautions …………………………………………………………… 1 condition in accordance with the following standards. 2. Features ………………………………………………………………………… 4 3. Specifications …………………………………………………………………… 5 IEC 61010-1 Measurement CAT III 300V Pollution Degree 2 4. - Page 3 DANGER is reserved for conditions and actions that are likely to cause CAUTION Make sure that the test probe are securely connected to the terminal of serious or fatal injury. WARNING is reserved for conditions and actions that can cause the instrument.
-
Page 4: Features
2. Features 3. Specifications MODEL 4105 is an earth resistance tester for testing power distribution lines, Measuring Range and Accuracy (at 23 5°C and RH 75% or less) in-house wiring system, electrical appliances etc. It also has an earth voltage range for earth voltage measurement. - Page 5 Maximum Operating Error Power Source Operating error (B) is an error obtained within the rated operating 9V DC : R6P (SUM-3) x6 conditions, and calculated with the intrinsic error (A), which is an error of Overload Protection the instrument used, and the error (Ei) due to variations. Earth resistance ranges : 280V AC/DC (10 seconds) Earth voltage range : 300V AC/DC (1 minute) A : Intrinsic error...
-
Page 6: Layout Diagram
4. Layout Diagram 5. Preparation for Measurement 5-1 Battery Voltage Check Turn on the instrument. If the display is clear without low battery symbol " " showing, battery voltage is sufficient. If the display blanks or " " is indicated, replace the batteries according to section 7 for Battery Replacement. -
Page 7: Precise Measurement
6-2 Precise Measurement (with Test Probe M-7095) 20Ω when the earth resistance is low. This indicated value is the earth q Test probe connection resistance of the earthed equipment under test. Stick the auxiliary earth spikes P and C into the ground deeply. They Note : If the auxiliary earth resistance of auxiliary earth spike C is too should be aligned at an interval of 5-10m from the earthed equipment... -
Page 8: Simplified Measurement
Note : When the simplified measurement probes are not used, short P w Earth Voltage Measurement and C terminals. Set the range switch to EARTH VOLTAGE position in the condition of q. Earth voltage will be indicated on the display. Make sure that the voltage is 10V or less. -
Page 9: Battery Replacement
7. Battery Replacement 8. Notes on Housing Case & Accessories 8-1 Case Lid DANGER Case lid can be fit under the housing case while making measurement. Never attempt to open the battery compartment cover, if the outer surface of the instrument is wet. Never attempt to replace batteries while making measurement. -
Page 10: Before Sending For Service
9. Before Sending for Service 10. Service If this instrument should fail to operate correctly, return it to your nearest If this instrument should fail to operate correctly, return to your nearest distributor stating the exact nature of the fault. Before returning the distributors stating the exact nature of the fault. - Page 11 A.W.SPERRY INSTRUMENTS INC. ATT: Customer service dept. 2150 Joshua's Path, Suite 302,...
Need help?
Do you have a question about the 4105 and is the answer not in the manual?
Questions and answers