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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 warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, 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.
Insulation Testers Introduction Contacting Fluke To contact Fluke, call: The Fluke model 1508 is a battery-powered insulation tester (hereafter, "the Tester"). This Tester meet CAT IV 1-888-993-5853 in USA IEC 61010 standards. The IEC 61010 standard defines 1-800-363-5853 in Canada...
1508 Users Manual Safety Information Use the Tester only as specified in this manual. Otherwise, the protection provided by the Tester may be impaired. See Table for a list of symbols used on the Tester and in this manual. A XWWarning identifies hazardous conditions and actions that could cause bodily harm or death.
Insulation Testers Safety Information • Remove test leads from the Tester before opening the Tester case or battery door. Never operate the Tester with the cover removed or the battery door open. • Comply with local and national safety requirements when working in hazardous locations. •...
1508 Users Manual Unsafe Voltage Rotary Switch Positions To alert you to the presence of a potentially hazardous Turn the Tester on by selecting any measurement voltage, when the Tester detects a voltage ≥ 30 V in function. The Tester presents a standard display for that insulation test, ≥...
Insulation Testers Buttons and Indicators Table 2. Rotary Switch Selections Buttons and Indicators Switch Use the buttons to activate features that augment the Measurement Function function selected with the rotary switch. There are also two Position indicators on the front of the Tester which light up when AC or DC voltage from 0.1 V to 600.0 V.
1508 Users Manual Table 3. Buttons and Indicators Button/ Description Indicator Button/ Description Indicator Turns the backlight on and off. The backlight goes off after 2 minutes. Press the blue button to select alternate measurement functions. Initiates an insulation test when the rotary switch is an position.
Insulation Testers Understanding the Display Understanding the Display Table 4. Display Indicators Display indicators are shown in Figure and described in Indicator Description Table . Error messages that may appear on the display Indicates an insulation or resistance are described in Table . test is locked on.
1508 Users Manual Table 5. Error Messages Table 5. Display Indicators (cont.) Indicator Description Message Description Polarization index or dielectric Appears on the primary display and absorption ratio test is selected. indicates that the battery is too low for reliable operation. The Tester will not batt Ohms lead zero is active.
Insulation Testers Input Terminals Table 6. Input Terminal Descriptions Input Terminals Input terminals are shown in Figure and described in Item Description Table . Input terminal for resistance measurement. Common (return) terminal for all measurements. Input terminal for volts or insulation test. Power-Up Options Holding a button down while turning the Tester on activates a power-up option.
1508 Users Manual Table 7. Power-Up Options Making Measurements Button Description The figures on the following pages show how to make measurements. bswitch position turns on all LCD segments. When connecting the test leads to the circuit or device, connect the common (COM) test lead before connecting switch position displays the software the live lead;...
Insulation Testers Making Measurements Measuring Volts Measuring Earth-Bond Resistance Resistance tests should only be performed on de-energized circuits. Check the fuse before testing. See Testing the Fuse later in this manual. Connecting to an energized circuit while the test is active will blow the fuse. Note Measurements can be adversely affected by impedances of additional operating circuits...
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1508 Users Manual • The primary display shows ---- until you press the T button and a valid resistance reading is obtained. • The high voltage symbol (Y) along with a primary display of >2 V warns if voltage greater than 2 V ac or dc is present.
Insulation Testers Making Measurements Push and hold T to start the test. The secondary Measuring Insulation Resistance display shows the test voltage applied to the circuit Insulation tests should only be performed on de-energized under test. The high voltage symbol (Z) along with a circuits.
1508 Users Manual Measuring Polarization Index and Dielectric Absorption Ratios Polarization Index (PI) is the ratio of the 10-minute insulation resistance to the 1-minute insulation resistance. Dielectric Absorption Ratio (DAR) is the ratio of the 1-minute insulation resistance to the 30 second insulation resistance.
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Insulation Testers Measuring Polarization Index and Dielectric Absorption Ratios • • The primary display shows ---- until you press the To interrupt a PI or DAR test before it is T button and a valid resistance reading is completed, momentarily press T. When you release T, the circuit under test will obtained.
1508 Users Manual Using the Compare Function Use the Compare function to set a pass/fail compare level for the insulation measurements. To use the Compare function: Press the button to select the desired compare value. You can choose from 100 kΩ, 200 kΩ, 500 kΩ, 1 MΩ, 2 MΩ, 5 MΩ, 10 MΩ, 20 MΩ, 50 MΩ, 100 MΩ,...
Insulation Testers Using the Memory Function Using the Memory Function You can store up to 19 insulation or earth-bond measurements on the Tester. The measurements are stored in a last in, first out format. If more than 19 measurements are stored, the earliest will be deleted to make room for the latest.
1508 Users Manual Cleaning Testing the Fuse XWWarning Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or To avoid electrical shock or injury, remove moisture in the terminals can affect readings. Allow time the test leads and any input signals before for drying before using the Tester.
Insulation Testers Replacing the Batteries and Fuse XWWarning To avoid shock, injury, or damage to the 315 mA Tester: Fuse • To avoid false readings, which could lead to possible electric shock or personal injury, replace the batteries as soon as the battery indicator (B) appears.
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Users Manual F315 mA 1000V Min interrupt rating 10000 A bbv15f.eps Fuse, Fast, 315 mA, Fluke PN 2279339 1000 V, Min Interrupt Rating 10000 A Battery, 1.5 V AA Alkaline, Fluke PN 376756 NEDA 15A, IEC LR6 Figure 11. Replacing the Fuse and Battery...
Insulation Testers Specifications Specifications Need intro paragraph here General Specifications Maximum Voltage Applied to any Terminal..600 V ac rms or dc Storage Temperature ..........-40 °C to 60 °C (-40 °F to 140 °F) Operating Temperature ........-20 °C to 55 °C (-4 °F to 131 °F) Temperature Coefficient........0.05 x (specified accuracy) per °C for temperatures <...
1508 Users Manual IP Rating .............IP40 Altitude ..............Operating: 2000 m CAT IV 600 V, 3000 m CAT III 600 V Non Operating (Storage): 12,000 m Over-Range Capability........110% of range Accessories............Lead Set PN 666602 Clips PN 1670641 (red) and PN 1670652 (black)
Insulation Testers Specifications Earth-Bond Resistance Measurement Accuracy Range Resolution + (% of Rdg + Digits) 20.00 Ω 0.01 Ω 200.0 Ω 0.1 Ω + (1.5 % + 3) 2000 Ω 1 Ω 20.00 kΩ 0.01 kΩ Accuracies apply from 0 to 100% of range. Overload Protection ..........2 V rms or dc Open Circuit Test Voltage ........>...
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1508 Users Manual Accuracy Accuracy Output Voltage Display Range Resolution Test Current ± (% of Rdg + Digits) 0.01 to 20.00 MΩ 0.01 MΩ 50 V ± (3 % + 5) 1 mA @ 50 kΩ (0 % to + 20 %) 20.0 to 50.0 MΩ...