FLUKE 1550C Insulation Tester User Manual

Advanced Test Equipment Corp.
Service
1550C/1555
Insulation Tester
Users Manual

PN 3593019
April 2010
© 2010 Fluke Corporation. All rights reserved. Printed in the USA. Specifications are subject to change without notice. All product names are trademarks of their respective companies.

Introduction

The Fluke 1550C and 1555 Insulation Testers (hereafter “the Tester”) are high voltage insulation testers to validate general circuits, such as switchgear, motors, and cables.
The Tester features:

• Large liquid crystal display (LCD)
• Six preset test voltages: 250 V, 500 V, 1000 V, 2500 V, 5000 V, 10,000 V (1555 only)
• Programmable test voltages: 250 V to 10,000 V (50/100 V steps)
• Resistance measurement: 200 kΩ to 2 TΩ
• Polarization Index (PI)
• Dielectric Absorption Ratio (DAR)
• Ramp mode that linearly increases (100 V/s) the applied test voltage
• Test timer and storage for test results with user-defined ID tag
• Breakdown voltage indication
• Rechargeable lead-acid battery
• Auto shutoff after 30 minutes of inactivity
• Infrared (IR) port for downloading test data
• PC software (supplied)

The Tester meets EN 61557 Parts 1 and 2; and EN 61010-1, CAT IV 600 V Pollution Degree 2 standards. CAT IV equipment is designed to protect against transients from the primary supply level, such as an electricity meter or an overhead or underground utility service.

To Contact Fluke

To contact Fluke, call one of the following telephone numbers:

• Technical Support USA: 1-800-44-FLUKE (1-800-443-5853)
• Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853)
• Canada: 1-800-36-FLUKE (1-800-363-5853)
• Europe: +31 402-675-200
• Japan: +81-3-3434-0181
• Singapore: +65-738-5655
• Anywhere in the world: +1-425-446-5500
  Or, visit Fluke’s website at www.fluke.com.
  To register your product, visit http://register.fluke.com.
  To see, print, or download the latest manual supplement, visit http://us.fluke.com/usen/support/manuals.

Safety Information

Warning: Read before Tester use.
To prevent possible electrical shock or personal injury, follow these guidelines:

• Before and after testing, confirm that the Tester does not indicate the presence of a hazardous voltage, see Figure 3. If the Tester beeps continuously and a hazardous voltage is shown on the display, remove power from the circuit under test or allow the installation capacitance to fully discharge.
• Use the Tester only as specified in this manual. Otherwise, the protection provided by the Tester can be compromised.
• Connect the common test lead before the live test lead and remove the live test lead before the common test lead.
• Do not disconnect the test leads before a test has been completed and the test voltage at the terminals has returned to zero. This ensures that any charged capacitance is fully discharged.
• Disconnect circuit power and discharge all high-voltage capacitors before you measure resistance or capacitance.
• Do not work alone or around explosive gas, vapor, or dust.
• Do not use the Tester in a damp or wet environment.
• Examine the test leads for damaged insulation or exposed metal. Check test lead continuity. Replace damaged leads. Do not use the Tester if it looks damaged.
• Be careful around voltages >30 V ac RMS, 42 V ac peak, or 60 V dc. Such voltages pose a shock hazard.
• Keep fingers behind the finger guards on the probes.
• Do not exceed the voltage or measurement category (CAT) rating of the test probes/accessories. Not all accessories provided are for use at the full-rated output voltage of the Tester. Accessories rated to 1000V CAT III/ 600V CAT IV are intended for hands-free use during insulation testing and are not to be touched while the output of the Tester exceeds the accessory’s marked rating. Allow the Tester to fully discharge the installation before removing the test accessory.
• Impedances of additional operating circuits connected in parallel can adversely affect measurements.
• Place test leads in proper input terminals.
• Do not use the Tester with any parts or cover removed.
• Use only specified replacement parts in the Tester.
• Do not use the Tester if the safety shutter is impaired in any way. The safety shutter prevents access to the test terminals and charger terminals at the same time.
• There are no user-replaceable parts inside the Tester.
• Use the guard terminal only as specified in this manual.
• Use only recommended test leads.
• Do not use it in distribution systems with voltages higher than 1100 V.

Symbols

Symbols on the Tester and in the manual are explained in Table 1.

Table 1. Symbols

Symbol

|

Meaning

---|---
| Conforms to European Union standards.
| Examined and Licensed by TÜV Product Services.
| Canadian Standards Association is the certified body used for testing compliance to safety standards.
| Risk of Danger. Important information. See Manual.
| Hazardous voltage

| Equipment is protected by double or reinforced insulation.
| Do not use it in distribution systems with voltages higher than 1100 V.
| Interference is present. The displayed value might be outside of specified accuracy.
| Ramp mode indicator
| Electrical breakdown
| Volts AC
| Earth Ground
| Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information.

Unpack the Tester

The Tester comes with the items shown in Figure 1. If the Tester is damaged or an item is missing, immediately contact the place of purchase.

Figure 1. Standard Items Provided

The Tester
The subsequent sections tell you about the Tester and its operation. The Tester is shown in Figure 2.

Figure 2. 1550C/1555 Insulation Tester

Pushbuttons
Use the pushbuttons to control the Tester, view test results, and scroll through chosen test results. Pushbuttons and their functionality are discussed in Figure 2.

Figure 3. Pushbuttons

scroll within the Function menu, use the arrow
pushbuttons.
3| Scrolls through test voltages, stored test results, timer duration, and changes test tag ID characters. Also used to answer “yes” to yes/no
prompts.
4| After a memory location is set, displays the test parameters, and test results are stored in memory. These include voltage, capacitance, polarization index, dielectric absorption ratio, and current.
5| Use to scroll through test voltages, stored test results, timer duration, and memory locations. Also used to answer “no” to yes/no
prompts.
6| Use for Test Voltage mode to start incrementally setting the test voltage between 250 V and 10,000 V.
7| Starts and stops a test. Push and hold for 1 second to start a test. Push again to stop a test.

Additionally, and are also used to access the following menu items:

1. X Insulation Functions:
   1.1 Ramp off (default)
   1.2 Ramp on
   1.3 DAR T= 01-00
   1.4 DAR/PI T= 10-00

2. Time limit xx-xx

3. Show results

4. Delete results

Push to make the selection.

Turn the Tester On and Off
Push to turn on the Tester.
The Tester does a self-check, and self-calibration shows the current software version and starts in the Test Voltage mode.
From here, you can:

• Change test parameters
• Start an insulation test
• View stored test results
• Download test results

Push again to turn off the Tester.

Display
Display annunciators are shown in Figure 4.

Figure 4. Display Features

range.
2| Polarization Index.
3| Dielectric Absorption Ratio.
4| Electrical breakdown in Ramp mode.
5| Ramp mode indicator.
6| Possible hazardous voltage is at the test terminals.
Warning: Before and after testing, confirm that the Tester does not indicate the presence of hazardous voltage. If the Tester beeps continuously and there is hazardous voltage, disconnect test leads and remove power from the circuit under test.
7| Voltage is sourced by the Tester or from the circuit under test at terminals of the Tester.
8| Test voltage selection (250 V, 500 V, 1000 V, 2500 V, 5000 V, or 10,000 V).
9| Battery charge status.
10| Bar graph display of insulation resistance.
11| Digital display of insulation resistance.
12| Text display. Shows voltage, test current, capacitance, programmable test voltages, and menu options.

Charge the Battery
= Note
This Tester uses a rechargeable 12 V lead-acid battery for power. Do not mix with the solid waste stream. Use a qualified recycler or hazardous materials handler to discard dead batteries. Contact your approved Fluke Service Center for disposal and recycling data.
Storing rechargeable lead-acid batteries in a low-charged state could decrease their life and/or damage them. Fully charge the battery before storing it for extended periods and examine the charge at regular intervals.
Charge the 12 V lead-acid battery with the ac power cord.
12 hours is typically necessary to fully charge the battery. Do not charge in very high or low temperatures. Charge the battery if the Tester is not used for extended periods. Figure 5 shows how to connect the Tester to a power supply.

To charge the battery with the ac power supply:

1. Turn the Tester off.
2. Disconnect the test leads from the Tester.
3. Move the safety shutter to access the power supply connection.
4. Connect the ac power cord to the IEC ac power socket on the Tester.
5. Connect the other end of the power cord to an ac power supply. See

“General Specifications” for ac charger input specifications.
The LCD displays CHARGING. Downloading is possible when the Tester is in Charging mode.

Guard Terminal Use
Note: Insulation resistance is measured between the (+) and (−) output connections. The Guard terminal (G) is at the same potential as the negative (−) terminal but is not in the measurement path.
For most tests, only two test leads are used. Connect the positive (+) and negative (−) test leads to the corresponding inputs on the Tester. Connect the test lead probes to the circuit under test. The Guard (G) terminal is left unconnected.
For the best accuracy when you measure very high resistances, use three-wire measurements and the Guard terminal. The Guard terminal is at the same potential as the negative (−) terminal and can be used to prevent surface leakage or other unwanted leakage currents from degrading the accuracy of the insulation resistance measurement.
Figure 6 shows how to measure the resistance from one of the conductors to the outer shield. In this case, there is a leakage current along the surface of the inner insulation near the end of the cable. This leakage adds to the current that the negative terminal senses, and causes the Tester to read a lower resistance than it should.

Insulation Tester
The Tester

Figure 7 shows how to prevent surface current leakage with a lead connected from the Guard terminal to a conductor that surrounds the inner insulation. The surface leakage current is directed to the Guard terminal. This removes the leakage current from the measurement path between the positive and negative terminals and improves the accuracy of the test readings.

Figure 8 shows how to make the measurement setup better. Connect the Guard terminal to the unused wire and attach it to the inner insulation. This ensures that the Tester measures the leakage between the selected conductor and the outer shield, but removes the leakage path between conductors.

Measurements

Common measurement procedures are discussed in this section.

Connect to the Circuit Under Test
 Warning
To avoid possible electric shock or personal injury:

• Remove all power from the circuit under test and discharge circuit capacitance before testing a circuit with the Tester.
• Connect the common test lead before the live test lead and remove the live test lead before the common test lead.
• Before and after testing, confirm that the Tester does not indicate the presence of a hazardous voltage, see Figure 4. If the Tester beeps continuously and a hazardous voltage is shown on the display, remove power from the circuit under test and disconnect test leads.

Insulation Tester
Measurements
To connect to the circuit under test:

1. Move the safety shutter to access the input terminals.
2. Put the test leads into the correct terminals shown, see Figure 9.
3. Connect the test leads to the circuit under test.

Figure 9. Test Lead Connections

Note:   The Tester is NOT specified below 200 kΩ. When the leads are shorted and a test is performed, the Tester gives an unspecified reading that is greater than zero. This is normal for this tester’s input circuitry configuration and does not change readings that are in the specified accuracy range.

Before an Insulation Test
The Tester includes features and functions that let you adapt the test to your requirements. These features let you:

• define a test voltage
• make a ramp test selection
• set a time limit (duration) for the test
• measure polarization index (PI)
• measure dielectric absorption ratio (DAR)
• measure capacitance

Use these alone or in combination. Set, clear, or account for (as appropriate) each feature before you start an insulation test. The features are discussed in this section.

Preset Test Voltage Selection
To make a preset test voltage selection:

1. With the Tester turned on, push to select TEST VOLTAGE. GHH05.EPS
   

2. Push or scroll through the preset test voltage options (250 V, 500 V, 1000 V, 2500 V, 5000 V, and 10,000 V).

The test voltage selection shows in the upper-right of the display. 

Note: The actual test voltage can be up to 10 % higher than the selected test voltage.

Program a Test Voltage
To set a test voltage in between the preset test voltages, proceed as follows:

1. With the Tester turned on, push   to select TEST VOLTAGE. GHH05.EPS
   

2. Push or scroll through the preset test voltage options (250 V, 500 V, 1000 V, 2500 V, 5000 V, and 10,000 V). Select the voltage closest to the level required.

3. The selected test voltage appears in the upper-right of the display.

4. Push . TV xxxxV appears flashing in the lower-left of the display.

5. Push or increment and decrement the voltage. When the correct voltage level shows, do not push . Doing so will return the test voltage to the next lowest last preset voltage selection. Instead, push  to go to the function menu.

Note: The test voltage can be up to 10 % higher than the test voltage you select.

Select a Ramp or Steady-State Test
The ramp-test function is an automated test that checks insulation for a breakdown. During a ramp test, the output voltage starts at 0 V and increases linearly (100 V/s) until it reaches the specified test voltage or until a sudden drop in measured resistance is detected. Then, the Ramp stops, the test voltage drops to zero, and the voltage at the breakdown point is stored in memory on the Tester. All other test results are declared invalid if the test does not reach the specified test voltage. If the test successfully meets compliance without breakdown, then the only valid test results are test voltage and insulation resistance.
To enable or disable the ramp function:

1. With the Tester turned on, push to enter the 1. X Function Menu.
2. Push to call the menu item.
3. Push or toggle the Ramp on or off. When the ramp is on a blinking appears in the upper left-hand corner of the display.
4. Push or use the settings. starts the test.

Set a Timed Test
You can control the length of an insulation test by setting a timer. The time (test duration) can be set in 1-minute increments up to 99 minutes. During a timed test, the time limit appears on the right bottom of the display, and the elapsed time is shown in the middle of the display. At the end of the elapsed time, the insulation test has been completed and the test is terminated.
To set a test time limit:

1. With the Tester turned on, push to enter the Function Menu.
2. Push or to selects the 2. Time Limit function.
3. Push to call the menu item.
4. Push or to select the time.
5. Push or use the settings. starts the test.

Polarization Index (PI)
As part of the insulation test, the Tester measures and stores polarization index (PI), when appropriate. A polarization index test requires 10 minutes to complete. Therefore, the Tester will start a countdown at 10 minutes. When an insulation test is 10 minutes or more, the polarization test is completed and stored. The results are available for display during a test by pushing the button or by storing the test results and scanning the RESULTS fields. The field is identified by PI .

Dielectric Absorption Ratio
As part of the insulation test, the Tester measures and stores dielectric absorption ratio (DAR), when appropriate. A DAR test requires 1 minute to complete. Therefore, it is measured and stored as invalid data for all insulation tests in less than 1 minute. When an insulation test is 1 minute or more the DAR test is included in the results. The results are available for display during a test by pushing the button or by storing the test results and scanning the RESULTS fields. The field is identified by DAR .

Capacitance
As part of the insulation test, the Tester measures and stores capacitance when appropriate. The results are available for display during a test by pushing the button or by storing the test results and scanning the RESULTS fields. The field is identified by C.

Insulation Test
Warning
To avoid possible electric shock or personal injury:

• Be aware that measuring insulation resistance requires the application of potentially dangerous voltages to the circuit. This may include exposed bonded metalwork.
• Remove all power from the circuit under test and discharge circuit capacitance before testing a circuit with the Tester.
• Before proceeding, ensure that the installation is wired correctly and no personnel is endangered by any tests.
• First, connect the test leads to the Tester inputs before you make a connection to the circuit under test.

PI/DAR Limits:

• Cap. Mdx > 1 μF and Res. Max > 100 Me
• Res. Min < 200 kΩ
• Current min < 50 μA
• If one of the limits is beyond, the Tester will display UNSPEC.

To perform an insulation test:

1. With the Tester turned on, set the available measurement options to meet your test requirements. These include:
   • Test Voltage – Set range: 250 V to 10,000 V (50 V/100 V steps)
   • Ramp Test – Toggle on or off
   • Time Limit – No limit or from 1 to 99 minutes

2. Connect the probes to the circuit under test. circuit under test.
   Warning
   Before and after testing, confirm that the Tester does not indicate the presence of a hazardous voltage, see Figure 4. If the Tester beeps continuously and a hazardous voltage is shown on the display, disconnect test leads and remove power from the circuit under test.

3. Push for 1 second to start the insulation test. The Tester beeps three times as the test begins, and Xflashes on the display indicate potentially hazardous voltages may be present on the test terminals.
   The display indicates the measured insulation resistance after the circuit has stabilized. The bar graph displays this value continuously (in real-time) as a trend, see Figure 10.

Figure 10. Displayed Measured Insulation Resistance

Any of the following conditions will terminate an insulation test:

• User stop (pushing )
• Timer limit reached
• Interference on the test circuit
• Breakdown occurs with ramp test enabled
• Battery depleted

If a breakdown occurs with ramp test enabled, push before going to step 4.
Following termination of an insulation test, the Tester beeps when a potentially hazardous voltage remains on the test terminals due to charged- circuit capacitance or from the presence of an external voltage.
4. When the test is terminated, STORE RESULT? Is displayed. If appropriate, store the test results as described in the next procedure. Otherwise, terminate the STORE RESULT? Prompt by pushing .
The results are not stored.

Store Test Results
Upon completion of an insulation test, the Tester displays STORE RESULT?
As a prompt to save the measurement results for future use. The Tester includes enough memory to store the results of 99 insulation tests for future use.
To store the results of an insulation test:

1. Push to save the measurement results. The Tester will assign and display a sequential tag number (00 to 99) to identify the measurement.
2. If the tag number is acceptable, push to store the data. If a different tagging convention is required, proceed as follows to provide a custom 4character tag.
   a. Notice that * is blinking on the display. This is the first of the four characters available for tagging the test results. Repeatedly push  to cycle through the character positions.
   b. At each character position use or to assign a character (0-9, A-Z).
   c. Push to store the results.

View Results Stored in Memory
Note: Parameters not appropriate for a test are shown as INVALID.
The Tester can store 99 sets of test data, including:

• Tags
• Ramp on or off
• Insulation Resistance
• Timer reading at the termination of the test (Timer)
• Test Voltage Selected (TV)
• Actual Test voltage (V)
• Capacitance I
• Polarization Index (PI)
• Dielectric absorption ratio (DAR)
• Test current (I)
• Reason for ending the test
• Limit – off or timer setting (1 to 99 minutes) (T. Limit)

To view stored test data, see Figure 11:

1. With the Tester turned on, push to call the Function menu.
2. Push or select 3. Show Results.
3. Push to select the menu item.

Note: When a voltage is present at the terminals, that voltage is always shown on the top-center of the display, regardless of whether that voltage is sourced by the Tester or is from the circuit under test.

Figure 11. Viewing Stored Test Data

4. Push or step through the stored locations.
5. Stop at the location you want to view.
6. Push to view the stored test data for a specific test. Test data appears on the alphanumeric text display and on the LCD.
7. Push to call the menu selection.

Download Your Test Results
You can use FlukeView Forms software to download all of your stored test data to a PC. An infrared adapter is supplied with the Tester for use in downloading stored test data. Figure 10 shows the location of the IR port on the Tester.

Figure 12. IR Port on 1550C/1555 Insulation Tester

Install FlukeView Forms Basic Software
FlukeView Forms Basic software must be installed on your PC to download stored test data.
To install FlukeView Forms Basic, see the FlukeView Forms Installation Guide.
To install the infrared adapter, see the USB-IR Cable Installation Guide.

Download Results to PC
Note: Before the USB-IR cable can be used, software drivers must be installed on your Windows PC. See the USB-IR Installation Guide for more information.
To connect the Tester to the PC for use with FlukeView Forms Basic Documenting Software:
The Tester should not be running a test; otherwise, serial communications will be disabled.

1. Connect the USB-IR cable to an available USB port on the PC.
2. Attach the IR device to the IR port on the Tester.
3. Open FlukeView Forms Basic Documenting Software.
4. The current COM serial port setting is displayed at the bottom right of the FlukeView Forms Basic window. Double-click on it to change the COM port setting to the virtual COM port used by the USB-IR cable.
5. Turn the Tester on.
6. Follow the instructions for transferring data from the Tester to the PC found in the online FlukeView Forms Users Manual.

Note: Verify that the download was successful before deleting the stored test results on the Tester.
Note: Results data stored in the Tester can be deleted from the PC using the FlukeView Forms Basic application. See the FlukeView Forms Users Manual file for details.

Delete Test Results
To delete all saved test results:

1. Push to call the Function menu.
2. Push or select the menu item DELETE RESULT.
3. Push to call the menu item.
4. Push . REALLY DEL? Appears.
5. Push to confirms the deletion or Pushto  return to Test Voltage.

Notes: Individual test locations cannot be deleted; however, they can be overwritten.
The Delete function deletes all stored test results.

Maintenance

Warning
To avoid possible electric shock or personal injury:

• Do not attempt to repair or service your Tester beyond what is described in this manual.
• Only qualified service personnel should service the Tester.
• There are no user-replaceable parts inside the Tester.

Cleaning
Warning
To avoid possible electric shock or personal injury, remove excess water from the cloth before cleaning the Tester to ensure that water does not enter any terminal.
Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents to clean the Tester.

Replaceable Parts and Accessories
Table 2 lists the replaceable parts that are available for the Tester. Table 3 identifies the accessories available for use with the Tester.

Table 2. List of Replaceable Parts

Table 3. Accessories

Specifications

General Specifications

This Class II (double insulated) instrument is supplied with a Class 1 (grounded) power cord. The protective earth terminal (ground pin) is not connected internally. The extra pin is for added plug retention only.
Dimensions (H x W x L)| 170 mm x 242 mm x 330 mm (6.7 in. x 9.5 in. x 13.0 in.)
Weight|  3.6 kg (7.94 lbs.)
Temperature (operating)| -20° C to 50° C (-4° F to 122° F)
Temperature (storage)| -20° C to 65° C (-4° F to 149° F)
Relative Humidity| 80 % to 31° C decreasing linearly to 50 % at 50° C
Altitude| 2000 m
Enclosure Sealing| IP40
Input Overload Protection| 1000 V ac

1550C/1555

Users Manual

600V
Pollution Degree| 2
Typical Battery Charge Capability
Note: At temperature extremes, the
battery needs to be charged more frequently.| Test Voltages| Number of Tests
250 V| 4100
500 V| 3600
1 kV| 3200
2.5 kV| 2500
5 kV| 1000
10 kV| 500

Electrical Specifications
The Tester’s accuracy is specified for 1 year after calibration at operating temperatures of 0 °C to 35 °C. For operating temperatures outside the range (20°C to 0°C and 35°C to
50°C), add ±0.25 % per °C, except on the 20% bands add ±1% per °C.

Insulation

Test Voltage (DC)| Insulation Resistance Range| Accuracy (±reading)
250 V| < 200 kΩ
200 kΩ to 5 GΩ
5 GΩ to 50 GΩ

50 GΩ| unspecified
5 %
20 %
unspecified
500 V| < 200 kΩ
200 kΩ to 10 GΩ
10 GΩ to 100 GΩ
100 GΩ| unspecified
5 %
20 %
unspecified
1000 V| < 200 kΩ
200 kΩ to 20 GΩ
20 GΩ to 200 GΩ
200 GΩ| unspecified
5 %
20 %
unspecified
2500 V| < 200 kΩ
200 kΩ to 50 GΩ
50 GΩ to 500 GΩ
500 GΩ| unspecified
5 %
20 %
unspecified
5000 V| < 200 kΩ
200 kΩ to 100 GΩ
100 GΩ to 1 TΩ
1 TΩ| unspecified
5 %
20 %
unspecified
10,000 V| < 200 kΩ
200 kΩ to 200 GΩ
200 GΩ to 2 TΩ
2 TΩ| unspecified
5 %
20 %
unspecified
Bar graph range:
Insulation test voltage accuracy:
Induced ac mains current rejection:
Charging rate for capacitive load:| 0 to 2 TΩ
-0 %, +10 % at 1 mA load current
2 mA maximum
5 seconds per μF
Discharge rate for capacitive load:| 1.5 s/µF
Leakage Current Measurement| Range| Accuracy
---|---|---
1 nA to 2 mA| ±(20 % + 2 nA)
Capacitive Measurement| 0.01 μF to 20.00 μF| ±(15 % of reading + 0.03 μF)
Timer| Range| Resolution
0 to 99 minutes| Setting: 1 minute
Indication: 1 second
Live circuit warning| Warning Range| Voltage Accuracy
30 V to 1100 V
ac/dc, 50/60 Hz| ±(15 % + 2 V)

Short circuit current > 1 mA and < 2 mA

Principle of Measurement and Resistance
The Tester measures insulation parameters and displays the results using the following formulas.

Ohm’s Law| Capacitance
(charge)| PI
(Polarization Index)| DAR
(Dielectric absorption ratio)
---|---|---|---
| | |

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 three 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 buyer or end-user customer of a Fluke authorized reseller and does not apply to fuses, disposable batteries, or any product which, in Fluke’s opinion, has been misused, altered, neglected, contaminated, or damaged by an 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 the product is purchased through a Fluke authorized sales outlet or if the Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when a product purchased in one country is submitted for repair in another country.
Fluke’s warranty obligation is limited, at Fluke’s option, to refund the purchase price, free of charge repair, or replacement of a defective product that 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 the 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 THE 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 the limitation of the term of an implied warranty or the 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.

Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
The U.S.A. | Fluke Europe B.V.
P.O. Box 1186
5602 B.D. Eindhoven
Pays-Bas
---|---

To register your product, visit http://register.fluke.com.
11/99
For complete operational instructions, refer to the Users Manual contained on the accompanying CD.

Documents / Resources

| FLUKE 1550C Insulation Tester [pdf] User Manual
1550C Insulation Tester, 1550C, Insulation Tester
---|---

References

• Fluke Registration
• Fluke Corporation: Fluke Electronics, Calibration and Networks

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