ED&D LT-952 Скачать руководство пользователя страница 6 | Manualshive

Страница: 6 / 19

ED&D LT-952 Скачать руководство пользователя страница 6

PRODUCT SAFETY SOLUTIONS

© 2012 Educated Design & Development, Inc. All rights reserved. Rev B: February, 2012

Page 5 of 19

PRODUCT COMPONENTS:

I. Figure 1 - Front Panel

A.  Neutral Open / Closed Switch
B.  Line Forward / Reverse Switch
C.  Ground Open / Closed Switch
D. LCD Display
E.  Power On / Off Switch
F.  D.U.T. (Device Under Test) Receptacle
G.  Open / Closed Ground Indicator Lights
H.  Meter Connection Jacks
I.  Range Selector Switch
J.  Meter Reference Switch
K.  Meter Connection Switch

L.

A

B

C

D

E

F

G

I

H

J

K

«
...
4
5
6
7
8
...
»

Содержание LT-952

Страница 1: ...PRODUCT SAFETY SOLUTIONS U US SE ER R S S M MA AN NU UA AL L L LE EA AK KA AG GE E C CU UR RR RE EN NT T T TE ES ST TE ER R MODEL LT 952...

Страница 2: ...INTRODUCTION 2 Warnings 2 Product purpose 2 Understanding Leakage Current 3 Before using 4 PRODUCT COMPONENTS 5 PRODUCT SPECIFICATIONS 9 OPERATING INSTRUCTIONS 10 THEORY OF OPERATION 13 TROUBLESHOOTIN...

Страница 3: ...HANDS AND FINGERS AWAY FROM ENERGIZED COMPONENTS AT ALL TIMES NO USER SERICEABLE PARTS INSIDE SERVICING BY QUALIFIED SERVICE PERSONNEL ONLY Product purpose The LT 952 leakage current tester is a stat...

Страница 4: ...duct is properly bonded to ground the leakage current will ideally follow this path to ground However if the product is not grounded or is improperly grounded a person contacting the product may becom...

Страница 5: ...e skin resistance Most Standards deal with these issues by lowering the leakage current limit for hand held products and products that may be exposed to moisture Furthermore it has been proven that th...

Страница 6: ...ure 1 Front Panel A Neutral Open Closed Switch B Line Forward Reverse Switch C Ground Open Closed Switch D LCD Display E Power On Off Switch F D U T Device Under Test Receptacle G Open Closed Ground I...

Страница 7: ...2 is designed to disable both the front and rear panel outlets when the power switch is OFF F D U T OUTLET Provides a convenient way to connect 120 Volt 15 Amp products to the LT 952 There is no need...

Страница 8: ...r measurement circuit is connected to the meter reference This connection is used to measure the leakage between an exposed metal surface and the meter reference point WARNING Hazardous Voltage exists...

Страница 9: ...utput connector is energized at all times when the LT 952 is connected to a power source A VOLTAGE SELECT SWITCH This switch configures the LT 952 to run off either 100 120 or 200 240 VAC The switch m...

Страница 10: ...to 50 C Storage Temperature 40 C to 70 C Humidity 80 R H 0 C to 35 C Overall Dimensions 11 1 2 in W x 13 1 2 in D x 5 1 4 H in 29 2 cm W x 34 3 cm D x 13 33 cm H Overall Weight 9 0 lb 4 0 Kg Body Cir...

Страница 11: ...cable 2 To verify that there are no other grounds to the equipment under test connect an ohmmeter between the ground pin on the product under test and the power system ground Readings of close to 0 O...

Страница 12: ...area so that you or another person cannot accidentally come into contact with the product during the test Since the product ground is disconnected while the Ground switch is toggled OPEN the product...

Страница 13: ...duct 7 Within a few seconds the display on the LT 952 should settle to the final leakage current value If the displayed result is less than 20mA operate the Range switch to the 2mA position 8 IEC60990...

Страница 14: ...THE METER MEASUREMENT CIRCUIT THE RESULT IS EXCESSIVE CURRENT THROUGH THE METER THAT CAN CAUSE THE METER FUSE TO BLOW THEORY OF OPERATION This section of the manual contains a description of the circu...

Страница 15: ...ence to the Meter Connection Circuit Meter Connection The Meter Connection Circuit receives inputs from the front panel banana jacks meter reference switch and ground switching circuit The front panel...

Страница 16: ...not change test conditions while holding the Ground switch in the OPEN position This causes momentary transients that will blow the fuse Depress the Ground switch only long enough to take a measuremen...

Страница 17: ...y Ground switch on the LT 952 must be toggled to OPEN Otherwise the leakage current is effectively shunted around the meter circuit to the ground REFERENCE STANDARDS 60950 60335 and IEC 1010 based Sta...

Страница 18: ...and are able to generate technically valid results The exclusive use of calibration service providers which have been recognized by an independent accreditation body as conforming to the requirements...

Страница 19: ...to the unit caused by excessive overload Furthermore this warranty does not cover damage caused by use of any attachment not original equipment of the product In addition ED D shall not be liable for...

Отзывы:

Нет отзывов