1. Introduction
The Fluke 1507 Digital Megohmmeter Insulation Resistance Tester is a robust and reliable instrument designed for comprehensive insulation testing in industrial and electrical environments. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Fluke 1507 tester.
Key features include multiple insulation test voltages, automatic calculation of Polarization Index (PI) and Dielectric Absorption Ratio (DAR), a Compare (Pass/Fail) function for repetitive testing, and live circuit detection for enhanced safety.
2. Safety Information
WARNING: Always read and understand all safety information before operating the Fluke 1507 tester. Failure to do so may result in serious injury or death.
- Live Circuit Detection: The tester is equipped with live circuit detection, which prevents insulation tests if a voltage greater than 30 Volts is detected. This feature is crucial for user protection.
- Auto-Discharge: The 1507 provides auto-discharge of capacitive voltage for added user protection after testing.
- Measurement Category: This instrument complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 No. 61010-1-04, and IEC/EN 61010-1 2nd edition for Measurement Category IV 600 V (CAT IV). Always use the tester within its specified measurement category.
- Proper Use: Use only the test leads and accessories supplied or approved by Fluke. Inspect test leads for damage before each use.
- Environmental Conditions: Do not use the tester in wet or explosive environments. Ensure the operating area is dry and well-ventilated.
3. Components and Included Accessories
The Fluke 1507 Insulation Resistance Tester package typically includes the following items:
- Fluke 1507 Insulation Resistance Tester Unit
- TL224 Test Leads
- TP74 Test Probes
- Alligator Clips
- Holster
- Remote Probe
- Four AA Batteries (pre-installed or included separately)
4. Setup
4.1. Battery Installation
The Fluke 1507 requires four AA alkaline batteries for operation. These are typically included with the unit. To install or replace batteries:
- Ensure the tester is turned OFF.
- Locate the battery compartment on the rear of the unit.
- Use a screwdriver to open the battery compartment cover.
- Insert the four AA batteries, observing the correct polarity as indicated inside the compartment.
- Replace the battery compartment cover and secure it with the screw.
4.2. Connecting Test Leads
Connect the test leads to the appropriate input jacks on the tester. For insulation resistance measurements, use the 'V Ω' and 'COM' jacks. Ensure connections are secure before proceeding with any tests.
5. Operating Instructions
5.1. Powering On/Off
To power on the Fluke 1507, rotate the rotary switch from the 'OFF' position to any desired measurement function. The large, backlit display will illuminate. To power off, rotate the switch back to 'OFF'. The unit also features an auto-power off function to conserve battery life.
5.2. Selecting Test Voltages
The Fluke 1507 offers multiple insulation test voltages. Rotate the main rotary switch to the 'INSULATION' section. Then, use the dedicated voltage selection buttons (50 V, 100 V, 250 V, 500 V, 1000 V) to choose the appropriate test voltage for your application.
5.3. Performing Insulation Tests
Once the desired test voltage is selected and test leads are connected to the circuit under test:
- Press and hold the TEST button to initiate the insulation test. The display will show the measured insulation resistance.
- For hands-free operation during repetitive tests, utilize the remote test probe.
- The live circuit detection feature will prevent a test if voltage exceeds 30V, indicated by a warning on the display.
5.4. Compare (Pass/Fail) Function
The Compare (Pass/Fail) function simplifies repetitive testing by allowing you to set a pass/fail threshold. Refer to the on-screen prompts and the user interface for setting this function. The tester will then indicate whether the measured resistance meets the predefined criteria.
5.5. Polarization Index (PI) and Dielectric Absorption Ratio (DAR)
The Fluke 1507 automatically calculates Polarization Index (PI) and Dielectric Absorption Ratio (DAR), saving time and ensuring accurate assessment of insulation condition. These functions are typically accessed via dedicated buttons on the front panel.
6. Maintenance
6.1. Cleaning
To clean the exterior of the tester, use a damp cloth and a mild detergent. Do not use abrasive cleaners or solvents. Ensure the unit is completely dry before storage or next use.
6.2. Battery Replacement
Replace batteries when the low battery indicator appears on the display. Refer to Section 4.1 for detailed battery installation instructions. Always use fresh alkaline batteries.
6.3. Calibration
For optimal performance and accuracy, periodic calibration by an authorized service center is recommended. Refer to your warranty information or contact Fluke support for calibration schedules and services.
7. Troubleshooting
This section provides solutions to common issues you might encounter with your Fluke 1507 tester.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tester does not power on. | Dead or incorrectly installed batteries. | Check battery polarity and replace with fresh AA batteries. |
| Insulation test does not start. | Live voltage detected on the circuit. | Ensure the circuit is de-energized or voltage is below 30V. The tester will not perform an insulation test if live voltage is present for safety. |
| Inaccurate readings. | Damaged test leads or improper connection. | Inspect test leads for damage. Ensure leads are securely connected to the tester and the circuit. |
| Display is dim or flickering. | Low battery. | Replace batteries. |
8. Specifications
| Specification | Value |
|---|---|
| Brand | Fluke |
| Model Number | 1507 |
| Power Source | Battery Powered (4 AA batteries) |
| Insulation Test Voltages | 50 V, 100 V, 250 V, 500 V, 1000 V |
| Min. Operating Voltage | 50 Volts (DC) |
| Voltage Rating | 600 Volts |
| Measurement Accuracy | +/-0.5% |
| Item Weight | 2.2 pounds (1 Kilogram) |
| Product Dimensions (L x W x H) | 11.77 x 15.2 x 3.07 inches |
| Material | Plastic |
| Color | Yellow |
| Compliance | EN 61010-1, CAT IV 600 V |
| Included Components | Remote probe, test leads, test probes, alligator clips |
9. Warranty and Support
9.1. Warranty Information
The Fluke 1507 Digital Megohmmeter Insulation Resistance Tester comes with a 1-Year warranty. Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use.
9.2. Customer Support
For technical assistance, service, or to inquire about calibration services, please visit the official Fluke website or contact their customer support. You can also refer to the comprehensive User Manual (PDF) available online for more detailed information:
