Fluke 1507 CAL User manual

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1507/1503
Insulation Testers

Users Manual

June 2005 Rev. 1, 2/19
2005-2019 Fluke Corporation. All rights reserved. All product names are trademarks of their respective companies.
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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. Fluke warrants that soft­ware will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority 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 Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased 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, then send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by use outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke 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 allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential dam­ages, the limitations and exclusions of this warranty 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 holding will not affect the validity or enforceability of any other provision.
11/99
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Table of Contents

Title Page
Introduction .................................................................................................................... 1
Contacting Fluke ............................................................................................................ 1
Safety Information .......................................................................................................... 2
Unsafe Voltage ............................................................................................................... 5
Battery Saver (Sleep Mode) ........................................................................................ 5
Rotary Switch Positions .................................................................................................. 5
Buttons and Indicators .................................................................................................... 6
Understanding the Display ............................................................................................. 8
Input Terminals............................................................................................................... 10
Power-Up Options .......................................................................................................... 10
Making Measurements ................................................................................................... 11
Measuring Volts ......................................................................................................... 12
Measuring Earth-Bond Resistance ............................................................................ 12
Measuring Insulation Resistance ............................................................................... 14
Measuring Polarization Index and Dielectric Absorption Ratios (Model 1507) ............... 15
Using the Compare Function (Model 1507) .................................................................... 17
Cleaning ......................................................................................................................... 18
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Testing the Batteries ...................................................................................................... 18
Testing the Fuse ............................................................................................................ 19
Replacing the Batteries and Fuse .................................................................................. 20
Specifications ................................................................................................................. 21
AC/DC Voltage Measurement ................................................................................... 23
Earth-bond Resistance Measurement ....................................................................... 24
Insulation Specifications ............................................................................................ 24
Model 1507 .......................................................................................................... 25
Model 1503 .......................................................................................................... 26
IEC 61557 Specification ....................................................................................... 26
Insulation Resistance Maximum and Minimum Display Values ............................ 28
Earth-Bond Resistance Maximum Display Values ............................................... 32
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Introduction

The Fluke model 1507 and model 1503 are battery-powered insulation testers (the Tester). Although this manual describes the operation of both Models 1507 and 1503, all illustrations and examples assume use of model 1507.
These Testers meet IEC 61010 standards. The IEC 61010-2-030 standard defines three measurement categories (CAT II to IV) based on the magnitude of danger from transient impulses. CAT IV Testers are designed to protect against transients from the primary supply level (overhead or underground utility service).
The Tester measures or tests the following:
AC / DC Voltage
Earth-Bond Resistance
Insulation Resistance
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Safety Information

Use the Tester only as specified in this manual. Otherwise, the protection provided by the Tester may be impaired. See Table 1 for a list of symbols used on the Tester and in this manual.
A Warning identifies conditions and procedures that are dangerous to the user. A Caution identifies conditions and procedures that can cause damage to the Product or the equipment under test.
XW
Warnings
To prevent possible electrical shock, fire, or personal injury:
Read all safety information before you use the Product.
Do not alter the Product and use only as specified, or the protection supplied by the Product can be
compromised.
Carefully read all instructions.
Do not use the Product around explosive gas, vapor, or in damp or wet environments.
Comply with local and national safety codes. Use personal protective equipment (approved rubber
gloves, face protection, and flame-resistant clothes) to prevent shock and arc blast injury where hazardous live conductors are exposed.
Do not work alone.
Examine the case before you use the Product. Look for cracks or missing plastic. Carefully look at the
insulation around the terminals.
Do not use the Product if it is altered or damaged.
Do not use test leads if they are damaged. Examine the test leads for damaged insulation, exposed
metal, or if the wear indicator shows. Check test lead continuity.
Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V dc.
Do not apply more than the rated voltage, between the terminals or between each terminal and earth ground.
Use the correct terminals, function, and range for measurements.
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Insulation Testers Safety Information
Use Product-approved measurement category (CAT), voltage, and amperage rated accessories (probes,
test leads, and adapters) for all measurements.
Do not exceed the Measurement Category (CAT) rating of the lowest rated individual component of a
Product, probe, or accessory.
Do not use in CAT III or CAT IV environments without the protective cap installed on test probe. The
protective cap decreases the exposed probe metal to <4 mm. This decreases the possibility of arc flash from short circuits.
Remove all probes, test leads, and accessories that are not necessary for the measurement.
Keep fingers behind the finger guards on the probes.
Measure a known voltage first to make sure that the Product operates correctly.
Always de-energize circuits before you do resistance tests.
Replace a blown fuse with exact replacement only for continued protection against arc flash.
Remove the batteries if the Product is not used for an extended period of time, or if stored in
temperatures above 50 °C. If the batteries are not removed, battery leakage may result.
Replace the batteries when the low battery indicator shows to prevent incorrect measurements.
Remove all probes, test leads, and accessories before the battery door is opened.
Replace all batteries with fresh batteries of the same manufacturer and type to prevent battery leakage.
Repair the Product before use if the battery leaks. Battery leakage may create a shock hazard or
damage the Product.
The battery door must be closed and locked before you operate the Product.
Do not operate the Product with covers removed or the case open. Hazardous voltage exposure is
possible.
Have an approved technician repair the Product.
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Table 1. Symbols
Symbol Description Symbol Description
W
X
P
~
4
WARNING. RISK OF DANGER.
WARNING. HAZARDOUS VOLTAGE. Risk of electric shock.
Consult user documentation.
Battery
Conforms to European Union directives.
Conforms to relevant Australian Safety and EMC standards.
Measurement Category II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation.
Measurement Category III is applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage MAINS installation.
Measurement Category IV is applicable to test and measuring circuits connected at the source of the building’s low-voltage MAINS installation.
This product complies with the WEEE Directive marking requirements. The affixed label indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE Directive Annex I, this product is classed as category 9 "Monitoring and Control Instrumentation" product. Do not dispose of this product as unsorted municipal waste.
T
6
)
Earth
Fuse
Double Insulated
WARNING. Do not use in distribution systems with voltages >660 V.
Certified by CSA Group to North American safety standards.
Conforms to relevant South Korean EMC Standards.
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Insulation Testers Unsafe Voltage

Unsafe Voltage

To alert you to the presence of a potentially hazardous voltage, when the Tester detects a voltage 30 V in insulation test, 2 V in resistance, or a voltage overload (), the symbol is displayed.
Battery Saver (Sleep Mode)
The Tester enters the “Sleep mode” and blanks the display if there is no function change or button press for 10 minutes. This is done to conserve battery power. To resume operation, turn the rotary switch to OFF and then turn to any function.
The 10-minute timer is disabled during any insulation resistance or earth bond resistance measurement. The time period starts immediately following any measurement.

Rotary Switch Positions

Turn the Tester on by selecting any measurement function. The Tester presents a standard display for that function (range, measurement units, modifiers, etc.). Use the blue button to select any rotary switch alternate functions (labelled with blue letters). Rotary switch selections are shown in Figure 1 and described in Table 2.
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Figure 1. Rotary Switch
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Switch
Position
OFF
250V 100V
50V
Table 2. Rotary Switch Selections
Measurement Function
Turn off the Tester.
AC or DC voltage from 0.1 V to 600.0 V.
Ohms from 0.01 Ω to 20.00 kΩ.
Ohms from 0.01 MΩ to 10.0 GΩ for the Model 1507 and 0.01 to 2000 MΩ for the Model 1503.
Performs insulation tests with 50, 100, 250, 500 and 1000 V dc source on the 1507 or 500 and 1000 V dc source on the 1503.

Buttons and Indicators

Use the buttons to activate features that augment the function selected with the rotary switch. There are also two indicators on the front of the Tester which light up when active. The buttons and indicators are shown in Figure 2 and described in Table 3.
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Figure 2. Buttons and Indicators
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Insulation Testers Buttons and Indicators
Table 3. Buttons and Indicators
Button/
Indicator
Press the blue button to select alternate measurement functions.
Description
Press to configure the Tester for a
polarization index or dielectric absorption ratio test. The test will start when you press the button.
Sets a pass/fail limit for insulation tests.
Test lock. When pressed before the
button, the test remains active until you press the lock or test button again to release the lock.
Turns the backlight on and off. The backlight goes off after 2 minutes.
Button/
Indicator
Description
Initiates an insulation test when the rotary switch is in
INSULATION position. Causes
the Tester to source (output) a high voltage and measure insulation resistance.
Initiates a resistance test when the rotary switch is in the ohms position.
Unsafe voltage warning. Indicates 30 V or greater (ac or dc depending on the rotary switch position) is detected on the input. Also appears when the display shows  in the switch positions, and when  appears on the display. The also appears when insulation test is active.
Pass indicator. Indicates when the insulation resistance measurement is greater than the selected compare limit.
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Understanding the Display

Display indicators are shown in Figure 3 and described in Table 4. Error messages that may appear on the display are described in Table 5.
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Figure 3. Display Indicators
Table 4. Display Indicators
Indicator Description
Indicates an insulation or resistance
test is locked on.
Unsafe voltage warning.
Low battery. Indicates when it is
Minus or greater than symbols
time to replace the battery. When is on, the backlight button is disabled to conserve battery life.
XW Warning
To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the low battery indicator appears.
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Insulation Testers Understanding the Display
Table 4 Display Indicators (cont.)
Indicator Description
Polarization index or dielectric
absorption ratio test is selected.
ZERO Ohms lead zero is active.
VAC, VDC, Ω,
kΩ, MΩ, GΩ
Measurement units
 Primary display
VDC Volts
 Secondary display
COMPARE Indicates selected pass/fail compare
value.
Insulation test indicator. Appears when
insulation test voltage is present.
Table 5. Error Messages
Message Description
Appears on the primary display and indicates that the battery is too low for

reliable operation. The Tester will not operate at all until the battery is replaced. The also appears when  is on the primary display.
> Indicates an out of range value.
  Invalid calibration data. Calibrate the Tester.
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Input Terminals

Input terminals are shown in Figure 4 and described in Table 6.
1
2
Figure 4. Input Terminals
3
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.
Item Description
Table 6. Input Terminal Descriptions
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. Power-up options allow you to use additional features and functions of the Tester. To select a power-up option, hold down the appropriate button indicated while turning the Tester from OFF to any switch position. Power-up options are cancelled when the Tester is turned OFF. Power-up options are described in Table 7.
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Insulation Testers Making Measurements
Table 7. Power-Up Options
Button Description
switch position turns on all LCD segments.

switch position displays the software
version number.
switch position displays the model number.
Starts the Calibration mode. The Tester
displays  and enters Calibration mode when the button is released.
Note
Power Up options are active when the button is pressed.

Making Measurements

The figures on the following pages show how to make measurements.
When connecting the test leads to the circuit or device, connect the common (COM) test lead before connecting the live lead; when removing the test leads, remove the live lead before removing the common test lead.
XW Warning
To avoid electric shock, injury, or damage to the Tester, disconnect circuit power and discharge all high-voltage capacitors before testing.
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Measuring Volts

INSULATION TESTER
1507
Figure 5. Measuring Volts
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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 connected in parallel or by transient currents.
To measure resistance:
1. Insert test probes in the Ω and See Figure 6.
2. Turn the rotary switch to the position.
3. Short the ends of the probes together, press the blue button and wait until dashes appear on the display. The Tester measures the probe resistance, stores the reading in memory, and subtracts it from readings. The probe resistance reading is saved even when the Tester is turned off. If the probe resistance is >2 Ω, the resistance will not be saved.
4. Connect the probes to the circuit to be measured. The Tester automatically detects if the circuit is energized.
COM input terminals.
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Insulation Testers Making Measurements
The primary display shows ---- until you press the
button and a valid resistance reading is obtained.
INSULATION TESTER
1507
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. In this condition, the test is inhibited. Disconnect the Tester and remove power before proceeding.
If the Tester chirps when you press the
button, the test is inhibited because voltage is present at the probes.
5. Push and hold the  button to start the test. The icon appears on the lower portion of the display until you release the button. The resistance reading appears on the primary display until a new test is started or a different function or range is selected.
When resistance is higher than the maximum display range, the Tester displays the > symbol and the maximum resistance for the range.
.
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Figure 6. Measuring Earth-Bond Resistance
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Measuring Insulation Resistance

Insulation tests should only be performed on de-energized circuits. To measure insulation resistance set up the Tester as shown in Figure 7 and follow the steps below:
1. Insert test probes in the V and COM input terminals.
2. Turn the rotary switch to the desired test voltage.
3. Connect the probes to the circuit to be measured. The Tester automatically detects if the circuit is energized.
The primary display shows  until you press
and a valid insulation resistance reading is obtained.
The high voltage symbol () along with a primary
display of >30 V warns if voltage more than 30 V ac or dc is present. In this condition, the test is inhibited. Disconnect the Tester and remove power before proceeding.
4. Push and hold to start the test. The secondary
display shows the test voltage applied to the circuit under test. The high voltage symbol () along with a primary display showing the resistance in MΩ or GΩ appears. The the display until is released.
When resistance is higher than the maximum display range, the Tester displays the symbol and the maximum resistance for the range.
5. Keep the probes on the test points and release the
button. The circuit under test then discharges through the Tester. The resistance reading appears on the primary display until a new test is started or a different function or range is selected or >30 V is detected.
icon appears on the lower portion of
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Insulation Testers Measuring Polarization Index and Dielectric Absorption Ratios (Model 1507)

Measuring Polarization Index and Dielectric Absorption Ratios (Model
INSULA TION TESTER
1507
1507)
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.
Insulation tests should only be performed on de-energized circuits. To measure the polarization index or dielectric absorption ratio:
1. Insert test probes in the
INSULATION and COM input
terminals.
Note
Because of the time required to perform the PI and DAR tests, use of test clips is recommended.
2. Turn the rotary switch to the desired test voltage position.
Figure 7. Measuring Insulation Resistance
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3. Press the button to select polarization index or dielectric absorption ratio.
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4. Connect the probes to the circuit to be measured. The Tester automatically detects if the circuit is energized.
The primary display shows ---- until you press the
button and a valid resistance reading is obtained.
The high voltage symbol () along with a primary
display of >30 V warns if voltage greater that 30 V ac or dc is present. If high voltage is present, the test is inhibited.
5. Press and release to start the test. During testing, the secondary display shows the test voltage applied to the circuit under test. The high voltage symbol () along with a primary display showing the resistance in MΩ or GΩ. The icon appears on the lower portion of the display until the test is finished.
When the test is completed, the PI or DAR value is displayed on the primary display. The circuit under test will automatically be discharged through the Tester. If either value used to calculate PI or DAR was greater than the maximum display range, or the 1-minute value was greater than 5000 MΩ, the primary display will show .
When resistance is higher than the maximum display range, the Tester displays the > symbol and the maximum resistance for the range.
To interrupt a PI or DAR test before it is completed, momentarily press . When you release , the circuit under test will automatically be discharged through the Tester.
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Insulation Testers Using the Compare Function (Model 1507)

Using the Compare Function (Model
INSULA TION TESTER
1507
or
1507)
Use the Compare function to set a pass/fail compare level for the insulation measurements. To use the Compare function:
1. 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, 200 MΩ, and 500 MΩ.
2. Perform insulation tests as described earlier in this manual.
3. The green pass indicator will appear if the measured value is greater than the selected value.
4. Press and hold the button for 1 second to disable the Compare function. The pass indicator will turn off when you start a new test or choose a new compare value.
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Figure 8. Measuring Polarization Index and Dielectric
Absorption Ratios
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Cleaning

INSULA TION TESTER
1507
Figure 9. Using the Compare Function
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Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or moisture in the terminals can affect readings. Allow time for drying before using the Tester.

Testing the Batteries

The Tester continuously monitors battery voltage. If the low battery icon () appears on the display, there is minimal battery life left. To test the batteries:
1. Turn the rotary switch to the position with no
probes inserted.
2. Press the blue button to initiate the fully loaded battery test. The voltage function displays clear and the measured battery voltage is shown in the primary display for 2 seconds, the voltage display then returns.
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Insulation Testers Testing the Fuse

Testing the Fuse

Fuse
315 mA
OK
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XW Warning
To avoid electrical shock or injury, remove the test leads and any input signals before replacing the fuse.
Test the fuse as described below and shown in Figure 10. Replace the fuse as shown in Figure 11.
1. Turn the rotary switch to the position.
2. Press and hold . If the display reading is ,
the fuse is bad and should be replaced.
INSULATION TESTER
1507
Figure 10. Testing the Fuse
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Replacing the Batteries and Fuse

Replace the fuse and batteries as shown in Figure 11. Follow the steps below to replace the batteries.
XW Warning
To avoid shock, injury, or damage to the Tester:
To avoid false readings, which could lead
to possible electric shock or personal injury, replace the batteries as soon as the battery indicator () appears.
Use ONLY fuses with the amperage,
interrupt, voltage, and speed ratings specified.
Turn the rotary switch to OFF and remove
the test leads from the terminals.
1. Remove the battery door by using a standard screwdriver to turn the battery door lock until the unlock symbol aligns with the arrow.
2. Remove and replace the batteries.
F315 mA 1000 V
Min interrupt rating
10000 A
Fuse, Fast, 315 mA, 1000 V,
Fluke PN 2279339
Min Interrupt Rating 10 000 A
Battery, 1.5 V AA Alkaline,
Fluke PN 376756
NEDA 15A, IEC LR6
Figure 11. Replacing the Fuse and Battery
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3. Replace the battery door and secure by turning the battery door lock until the lock symbol aligns with the arrow.
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Insulation Testers Specifications

Specifications

Maximum Voltage between any
Terminal and Earth .................................................. 600 V
Storage Temperature .............................................. -40 °C to 60 °C
Operating Temperature ........................................... -20 °C to 55 °C
Temperature Coefficient .......................................... 0.05 x (specified accuracy) per °C for temperatures <18 °C or >28 °C
Relative Humidity .................................................... Noncondensing
Batteries .................................................................. Four AA batteries (IEC LR6)
Battery Life .............................................................. Insulation test use: Tester can perform at least 1000 insulation tests with fresh alkaline
Size ......................................................................... 5.0 cm H x 10.0 cm W x 20.3 cm L (1.97 in H x 3.94 in W x 8.00 in L)
Weight ..................................................................... 550 g (1.2 lb)
Ingress Protection Rating ........................................ IEC 60529: IP40
Altitude
Operating ............................................................. 2000 m
Storage ................................................................ 12 000 m
Over-Range Capability ............................................ 110 % of range
0 % to 95 % @ 10 °C to 30 °C 0 % to 75 % @ 30 °C to 40 °C 0 % to 40 % @ 40 °C to 55 °C
batteries at room temperature. These are standard tests of 1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off. Resistance Measurements: Tester can perform at least 2500 earth-bond resistance measurements with fresh alkaline batteries at room temperature. These are standard tests of 1 Ω with a duty cycle of 5 seconds on and 25 seconds off.
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Accessories ............................................................. TL224 Leads
Safety
General ............................................................... IEC 61010-1: Pollution Degree 2
Measurement ...................................................... IEC 61010-2-030; CAT IV 600 V IEC 61010-031, IEC 61557-1, IEC 61557-2,
Electromagnetic Compatibility (EMC)
International ........................................................ IEC 61326-1: Portable Electromagnetic Environment
Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low-voltage power supply network that supplies buildings used for domestic purposes. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances.
Korea (KCC) ........................................................ Class A Equipment (Industrial Broadcasting & Communication Equipment)
Class A: Equipment meets requirements for industrial electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.
USA (FCC) .......................................................... 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.
TP74 Probes with Protective Caps Alligator Clips PN 1958654 (red) and PN 1958646 (black) Holster Remote Probe with Protective Cap
IEC 61557-4, IEC 61557-10
CISPR 11: Group 1, Class A
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Insulation Testers Specifications

AC/DC Voltage Measurement

Accuracy
Range Resolution
600.0 V 0.1 V + (2 % + 3)
Input Impedance .................................................. 3 MΩ (nominal), <100 pF
Common Mode Rejection Ratio
(1 kΩ unbalanced) ............................................... >60 dB at dc, 50 Hz or 60 Hz
Overload Protection ............................................. 600 V rms or dc
50 Hz to 400 Hz
± (% of Rdg + Digits)
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Earth-bond Resistance Measurement

Range Resolution
20.00 Ω 0.01 Ω
Accuracy
[1]
+ (% of Rdg + Digits)
200.0 Ω 0.1 Ω + (1.5 % + 3)
2000 Ω 1 Ω
20.00 kΩ 0.01 kΩ
[1] Accuracies apply from 0 to 100% of range.
Overload Protection ............................................ 2 V rms or dc
Open Circuit Test Voltage ................................... >4.0 V, <8 V
Short Circuit Current ........................................... >200.0 mA

Insulation Specifications

Measurement Range ........................................... 0.01 MΩ to 10 GΩ model 1507, 0.01 MΩ to 2000 MΩ model 1503
Test Voltages ...................................................... 50, 100, 250, 500, 1000 V dc model 1507, 500 and 1000 V dc model 1503
Test Voltage Accuracy ........................................ +20 %, -0 %
Short-Circuit Test Current ................................... 1 mA nominal
Auto Discharge .................................................... Discharge time <0.5 second for C = 1 μF or less
Live Circuit Detection: ......................................... Inhibit test if terminal voltage >30 V prior to initialization of test.
Maximum Capacitive Load .................................. Operable with up to 1 μF load.
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Insulation Testers Specifications

Model 1507

Output Voltage Display Range Resolution Test Current
50 V dc
0.01 to 20.00 MΩ 0.01 MΩ 1 mA @ 50 kΩ ± (3 % + 5)
(0 % to + 20 %)
100 V dc
20.0 to 50.0 MΩ 0.1 MΩ
0.01 to 20.00 MΩ 0.01 MΩ
1 mA @ 100 kΩ ± (3 % + 5)
(0 % to + 20 %)
250 V dc
20.0 to 100.0 MΩ 0.1 MΩ
0.01 to 20.00 MΩ 0.01 MΩ
1 mA @ 250 kΩ ± (1.5 % + 5)
(0 % to + 20 %)
20.0 to 200.0 MΩ 0.1 MΩ
0.01 to 20.00 MΩ 0.01 MΩ
500 V dc
1 mA @ 500 kΩ ± (1.5 % + 5) 20.0 to 200.0 MΩ 0.1 MΩ
(0 % to + 20 %)
200 to 500 MΩ 1 MΩ
0.1 to 200.0 MΩ 0.1 MΩ
1000 V dc
200 to 2000 MΩ 1 MΩ
1 mA @ 1 MΩ
(0 % to + 20 %)
2.0 to 10.0 GΩ 0.1 GΩ ± (10 % + 3)
Accuracy
± (% of Rdg + Digits)
± (1.5 % + 5)
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Model 1503

Output Voltage Display Range Resolution Test Current
500 V dc
(0 % to + 20 %)
1000 V dc
0 % to + 20 %)
0.01 to 20.00 MΩ 0.01 MΩ
20.0 to 200.0 MΩ 0.1 MΩ
200 to 500 MΩ 1 MΩ
0.1 to 200.0 MΩ 0.1 MΩ
200 to 2000 MΩ 1 MΩ
1 mA @ 500 kΩ ± (2.0 % + 5)
1 mA @ 1 MΩ ± (2.0 % + 5)
Accuracy
± (% of Rdg + Digits)

IEC 61557 Specification

The following tables are a requirement for European labeling.
Measurement Intrinsic Uncertainty Operating Uncertainty
Volts ± (2.0 % + 3) 30 %
Earth-Bond Resistance ± (1.5 % + 3) 30 %
Insulation Resistance
[1] This specification comes from the standard and indicates the maximum amount allowable by the standard.
Depends on test voltage and range.
See Insulation Test specifications.
30 %
[1]
26
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Insulation Testers Specifications
IEC 61557 Influence Variables and Uncertainties
Earth-Bond Resistance
Influence Variable
Designation per EN61557
Uncertainty for Insulation
Resistance
[1]
Uncertainty for Earth-Bond
Resistance
Supply Voltage E2 5 % 5 %
Temperature E3 5 % 5 %
[1] Specification confidence level 99 %.
[1]
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The following tables can be used to determine the maximum or minimum display values considering maximum instrument operating error per IEC 61557.

Insulation Resistance Maximum and Minimum Display Values

50 V 100 V 250 V 500 V 1000 V
Limit
Value
0.05 0.07 0.05 0.07 0.05 0.07 0.05 0.07
0.06 0.08 0.06 0.08 0.06 0.08 0.06 0.08
0.07 0.09 0.07 0.09 0.07 0.09 0.07 0.09
0.08 0.10 0.08 0.10 0.08 0.10 0.08 0.10
0.09 0.12 0.09 0.12 0.09 0.12 0.09 0.12
0.1 0.13 0.1 0.13 0.1 0.13 0.1 0.13 0.1 0.1
0.2 0.26 0.2 0.26 0.2 0.26 0.2 0.26 0.2 0.3
0.3 0.39 0.3 0.39 0.3 0.39 0.3 0.39 0.3 0.4
0.4 0.52 0.4 0.52 0.4 0.52 0.4 0.52 0.4 0.5
0.5 0.65 0.5 0.65 0.5 0.65 0.5 0.65 0.5 0.7
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
28
Minimum
Display
Value
Page 33
Insulation Testers Specifications
Insulation Resistance Maximum and Minimum Display Values (cont.)
50 V 100 V 250 V 500 V 1000 V
Limit
Value
0.6 0.78 0.6 0.78 0.6 0.78 0.6 0.78 0.6 0.8
0.7 0.91 0.7 0.91 0.7 0.91 0.7 0.91 0.7 0.9
0.8 1.04 0.8 1.04 0.8 1.04 0.8 1.04 0.8 1.0
0.9 1.17 0.9 1.17 0.9 1.17 0.9 1.17 0.9 1.2
1.0 1.30 1.0 1.30 1.0 1.30 1.0 1.30 1.0 1.3
2.0 2.60 2.0 2.60 2.0 2.60 2.0 2.60 2.0 2.6
3.0 3.90 3.0 3.90 3.0 3.90 3.0 3.90 3.0 3.9
4.0 5.20 4.0 5.20 4.0 5.20 4.0 5.20 4.0 5.2
5.0 6.50 5.0 6.50 5.0 6.50 5.0 6.50 5.0 6.5
6.0 7.80 6.0 7.80 6.0 7.80 6.0 7.80 6.0 7.8
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
29
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Insulation Resistance Maximum and Minimum Display Values (cont.)
50 V 100 V 250 V 500 V 1000 V
Limit
Value
7.0 9.10 7.0 9.10 7.0 9.10 7.0 9.10 7.0 9.1
8.0 10.40 8.0 10.40 8.0 10.40 8.0 10.40 8.0 10.4
9.0 11.70 9.0 11.70 9.0 11.70 9.0 11.70 9.0 11.7
10.0 13.0 10.0 13.0 10.0 13.0 10.0 13.0 10.0 13.0
20.0 26.0 20.0 26.0 20.0 26.0 20.0 26.0 20.0 26.0
30.0 39.0 30.0 39.0 30.0 39.0 30.0 39.0 30.0 39.0
40.0 52.0 40.0 52.0 40.0 52.0 40.0 52.0 40.0 53.0
50.0 65.0 50.0 65.0 50.0 65.0 50.0 65.0
60.0 78.0 60.0 78.0 60.0 78.0 60.0 78.0
70.0 91.0 70.0 91.0 70.0 91.0 70.0 91.0
80.0 104.0 80.0 104.0 80.0 104.0 80.0 104.0
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
30
Minimum
Display
Value
Page 35
Insulation Testers Specifications
Insulation Resistance Maximum and Minimum Display Values (cont.)
50 V 100 V 250 V 500 V 1000 V
Limit
Value
90.0 117.0 90.0 117.0 90.0 117.0 90.0 117.0
100.0 130.0 100.0 130.0 100.0 130.0
200.0 260.0 200.0 260.0
300.0 390.0 300.0 390.0
400.0 520.0 400.0 520.0
500.0 650.0
600.0 780.0
700.0 910.0
800.0 1040.0
900.0 1170.0
1000.0 1300.0
2000.0 2600.0
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
Limit
Value
Minimum
Display
Value
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Earth-Bond Resistance Maximum Display Values

Limit Value
Maximum
Display Value
0.4 0.28 7.0 4.9 100.0 70.0
0.5 0.35 8.0 5.6 200.0 140.0
0.6 0.42 9.0 6.3 300.0 210.0
0.7 0.49 10.0 7.0 400.0 280.0
0.8 0.56 20.0 14.0 500.0 350.0
0.9 0.63 30.0 21.0 600.0 420.0
1.0 0.7 40.0 28.0 700.0 490.0
2.0 1.4 50.0 35.0 800.0 560.0
3.0 2.1 60.0 42.0 900.0 630.0
4.0 2.8 70.0 49.0 1000.0 700.0
5.0 3.5 80.0 56.0 2000.0 1400.0
6.0 4.2 90.0 63.0
Limit Value
Maximum
Display Value
Limit Value
Maximum
Display Value
32
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