Im Anschluß an die Reparatur wird das Produkt unter Vorauszahlung von Frachtkosten (FOB. Bestimmungsort) an den Erwerber zurückgesandt.Wenn Fluke jedoch
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Limited Warranty and Limitation of Liability Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warrant y period is two years and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buy er or end-user customer of a Fluke authorized reseller, and does not apply to fuse s, disposable batteries, or to any product which, in Fluke’s opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that so ftware will operate substant ially in accordance with its functional specifications for 90 days and that it has been properly recorded on non- defective media. Fluke does not warrant t hat software will be error free or operate without interruption. Fluke authorized resellers shall extend th is warranty on new and unused products to end-user customers only but have no author ity to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buye r has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purc hased in one country is submitted for repair in another country. Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period. To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information, t hen send the product to that service center, with a description of the difficulty, post age and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transi t. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by negl ect, misuse, contami nation, alteration, accident, or abnormal condition of oper ation or handling, including overvoltage failures caused by use outside the productÕs specified rating, or normal wear and tear of mechanical components, Fluk e will provide an estimate of repair costs and obtain authorization before commencing the work . Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point). THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY. Since some countries or states do not al low limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warr anty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other decision- maker of competent jurisdiction, such hol ding will not affect the validity or enforceability of any other provision. Fluke Corporation P.O. Box 9090 Everett, WA 98206-9090 U.S.A. Fluke Europe B.V. P.O. Box 1186 5602 BD Eindhoven The Netherlands Visit Fluke’s web site at: 11/99

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i Table of Contents Title Page Introduction..1 Contacting Fluke1 Unpacking t he Meter2 Safety Information.3 Symbols.4 Operating the Meter.4 Turning the Meter On and Off.4 Using the Pushbuttons5 Understanding t he Display6 Charging the Battery6 Using the Guard Terminal.8 Making Measurements10 Connecting to the Circuit Under Test..10 Selecting a Pre-set Test Voltage..11 Programming a Te st Voltage.. 12 Selecting a Ramp or Steady-State Test13 Setting a Timed Test..13 Polarization Index (PI)14 Dielectric Absorption Ratio..14 Capacitanc e14 Performing an Insulation Test.14 Storing the Test Results16 Viewing Results St ored in Memory17 Downloading Your Test Results.18 Installing FlukeView Forms Basic Software.18 Downloading Results to PC.19 Deleting Your Test Results..19 Maintaining the Meter..20 Cleaning20 Principle of Measurement and Resistance..20 Specifications..22 General Specifications 22 Electrical Specifications. 23 Warranty in Other Languages.24

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iii List of Tables Table Title Page 1. Symbols.. 4 2. List of Replac able Parts.. 21 3. 1550B Acce ssories 21 List of Figures Figure Title Page 1. Standard Items Provided 2 2. Pushbuttons.. 5 3. Display F eatures. 6 4. Power Supply C onnections 7 5. Surface Leak age Current 8 6. Guard Terminal Connection.. 9 7. Improved Guard Te rminal Connec tion. 9 8. Connecting to the Circuit Under Test 10 9. IR Port on 1550B MegOhmMeter 18

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1550B Users Manual 2 Unpacking the Meter The Meter comes with the items shown in Figure 1. If the Meter is damaged or an item is missing, contact the place of purchase immediately. 512111096421783 ASW01F.EPS Item Description English Manual AC Power Cord Test Cables with Alligator Clips (red, black, green) Soft Carrying Case Quick Reference Card Infrared Adapter with interface cable CD containing Users Manual CD containing FlukeView Forms Basic Software License Agreement Registration Card FlukeView Forms Installation Guide USB-IR Cable Installation Guide Figure 1. Standard Items Provided Warning Use only recommended test leads. The supplied test leads are for use with this instrument only. Do not use with other equipment

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MegOhmMeter Safety Information 3 Safety Information Warning Before and after testing, confirm that the Meter does not indicate the presence of a hazardous voltage. (See Figure 3.) If the Meter beeps continuously and a ha zardous voltage is shown on the display, disconnect test leads and remove power from the circuit under test. Warning: Read Before Using the Meter • To avoid possible electric shock or personal injury: • Use the Meter only as specified in this manual. Otherwise the protection provided by the Meter might be impaired. • Do not disconnect the test leads be fore the test has been completed and the test voltage at the terminals has returned to zero. This ensures that any charged cap acitance is fully discharged. • Ensure there is no power to the circ uit under test and that all circuit capacitances are fully discharged prior to testing with this instrument. • Avoid working alone or around exp losive gas, vapor or dust. • Do not use the Meter in a wet environment. • Inspect the test leads for damaged insulation or exposed metal. Check test lead continuity. Replace damaged leads. Do not use the Meter if it looks damaged. • Use care when working above 30 V ac rms, 42 V ac peak and 60 V dc. Such voltages pose a shock hazard. • When using the probes, keep your fingers behind the finger guards. • Impedances of additional operating ci rcuits connected in parallel can adversely affect measurements. • Place test leads in proper input terminals. • Do not use the Meter with an y parts or cover removed. • Use only Fluke approved repl acement parts, and accessories as specified in this manual. • Do not use the Meter if the safety s hutter is impaired in any way. The safety shutter (see Frontispiece) prevents access to the test terminals and charger termi nals at the same time. • There are no user replaceable parts inside the instrument. • Use the guard terminal only as specified in this manual. Do not allow other accessories or foreign objects to come into contact with the guard terminal as safety may be compromised. • Do not use in distribution system s with voltages higher than 660 V.

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1550B Users Manual 4 Symbols Symbols on the Meter and in the manual are explained Table 1. Table 1. Symbols Conforms to European Union standards. TUV GS This product complies with UL3111-1, CAN/CAS C22.2 No.1010.1 for Test and Measurement Equipment Risk of danger. Important information. See Manual. Potentially hazardous voltage Equipment protected by double or reinforced insulation. Do not use in distribution syst ems with voltages higher than 660 V. Interference is present. Displayed value might be outside of specified accuracy. Ramp mode indicator Electrical breakdown Volts AC Earth Ground Operating the Meter Turning the Meter On and Off To turn the Meter on and off: 1. Press to turn on the Meter. The Meter performs a self-check, self -calibration, displays the current software version, and starts in the Test Voltage mode. At this point, you can: Change test parameters Start an insulation test View stored test results Download test results 2. Press again to turn off the Meter.

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MegOhmMeter Operating the Meter 5 Using the Pushbuttons Use the pushbuttons (Figure 2) to contro l operation of the Meter, select test results for viewing, and scroll th rough selected test results. ON/OFFFUNCTIONUPSCROLL DOWN ENTERTEST1234567(yes) (no) ASW02F.EPS Item Button Description Turns the Meter off and on. Function button. From Test Voltage mode, the Function button scrolls through Test Voltage selection, ramp test setup, time limit setup, and results (memory functions). While reviewing results, use the F unction button to choose between the view and delete screens. (yes)Up button. Used to scroll through test voltages, stored test results, timer duration, and changing test tag ID characters. Also used to answer ÒyesÓ to yes/no prompts. Scroll button. After you select a memory location, use the Scroll button to display the test parameters, test results stored in memory. These include voltage, capacitance, polarization index, dielectric absorption ratio, and current. (no) Down button. Used to scroll through test voltages, stored test results, timer duration, and memo ry locations. Also used to answer ÒnoÓ to yes/no prompts. Enter button. Used from the function to access stored data (memory locations). Also used form the function to enable increment ally setting the test voltage between 250 V and 5000V. Test button. Starts and stops a test. Push and hold the button for 1 second to start a test. Push the button again to stop a test. Figure 2. Pushbuttons

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