Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of the Fluke 8808A 5.5-Digit Digital Bench Multimeter. Please read this manual thoroughly before using the instrument.
The Fluke 8808A is a high-performance digital multimeter designed for precision measurements in various electrical and electronic applications. It features a 5.5-digit resolution, dual display, and capabilities for measuring volts, ohms, and amps with high accuracy.
Safety Information
Always adhere to safety precautions to prevent personal injury and damage to the instrument. Observe all warnings and cautions marked on the instrument and in this manual.
- Do not use the multimeter if it is damaged or operating abnormally.
- Ensure proper input connections for the measurement type.
- Do not exceed the maximum input ratings for any function.
- Use only specified replacement parts.
- Refer to the specifications section for detailed input limits.
Product Overview
The Fluke 8808A is a versatile bench multimeter with the following key features:
- 5.5-digit resolution dual display
- Basic V dc accuracy of 0.015%
- Dedicated DC leakage current measurement
- 2x4 ohms 4-wire measurement technique
- Six dedicated buttons for fast access to instrument setups
- Hi/Lo limit compare for Pass/Fail testing
Figure 1: Front panel of the Fluke 8808A Digital Bench Multimeter, showing the display, input terminals, and control buttons. The display shows a reading of 1.61572 V DC. Input terminals are labeled for HI, LO, mA, and 10A, with additional SENSE 4WD terminals.
Setup
Unpacking and Inspection
Carefully unpack the multimeter and inspect it for any signs of damage during transit. Report any damage to your dealer or Fluke representative immediately.
Power Connection
The Fluke 8808A operates on 110V/120V AC power. Connect the supplied power cord to the instrument's rear panel power inlet and then to a grounded AC outlet. Ensure the correct voltage setting if applicable (check the rear panel for voltage selector, though typically auto-sensing for 110V/120V models).
Initial Power On
- Press the power button (⑂) located on the front panel.
- The display will illuminate and perform a self-test.
- Allow the instrument to warm up for at least 30 minutes for optimal accuracy.
Operating Instructions
Front Panel Controls and Connectors
Refer to Figure 1 for the layout of the front panel. Key areas include:
- Input Terminals: Located on the left, these are used for connecting test leads for voltage, current, and resistance measurements. Includes HI, LO, mA, and 10A terminals.
- Sense Terminals (4-wire): Used for 4-wire resistance measurements to eliminate lead resistance errors.
- Display: Shows measurement readings, units, and status indicators.
- Function Buttons: Buttons like DC V, AC V, DC I, AC I, Ω (Ohms), Freq (Frequency) select the primary measurement function.
- Range Buttons: Used to manually select measurement ranges or enable auto-ranging.
- Setup Buttons (S1-S6): Allow saving and recalling up to six instrument configurations for frequently performed measurements.
- Utility Buttons: Include MIN/MAX, REL (Relative), HOLD, RATE/TRIG, PRINT/BAUD, and SHIFT for advanced functions.
Basic Measurements
Measuring DC Voltage (DC V)
- Connect the red test lead to the HI input terminal and the black test lead to the LO input terminal.
- Press the DC V button.
- Connect the test leads across the circuit or component to be measured.
- The DC voltage reading will appear on the display.
Measuring Resistance (Ω)
- Ensure the circuit is de-energized before measuring resistance.
- For 2-wire measurement: Connect the red test lead to the HI input terminal and the black test lead to the LO input terminal.
- For 4-wire measurement (recommended for precision): Connect the HI test lead to the HI input, LO test lead to the LO input, HI sense lead to SENSE HI, and LO sense lead to SENSE LO.
- Press the Ω button.
- Connect the test leads across the component.
- The resistance reading will appear on the display.
Using Setup Buttons (S1-S6)
The six setup buttons allow for quick recall of frequently used measurement configurations.
- To Save a Setup: Configure the multimeter for the desired measurement function, range, limits, etc. Then, press the SHIFT button followed by one of the S1 to S6 buttons. The current configuration is saved to that button.
- To Recall a Setup: Simply press the desired S1 to S6 button. The multimeter will instantly switch to the saved configuration.
Maintenance
Cleaning
Clean the instrument case with a damp cloth and mild detergent. Do not use abrasives or solvents. Ensure the instrument is powered off and disconnected from all power sources before cleaning.
Calibration
For optimal performance and accuracy, the Fluke 8808A should be calibrated periodically by qualified personnel using traceable standards. Refer to the service manual for detailed calibration procedures or contact Fluke service centers.
Fuse Replacement
If the current measurement function fails, the fuse may need replacement. Refer to the service manual for fuse specifications and replacement instructions. Always replace fuses with the exact type and rating specified by the manufacturer.
Troubleshooting
This section provides solutions to common issues. If the problem persists, contact Fluke technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or power | Power cord not connected; Power outlet faulty; Internal fuse blown. | Check power cord connection; Test power outlet; Check and replace internal fuse (refer to Maintenance). |
| Incorrect readings | Incorrect function selected; Test leads faulty; Calibration required; Environmental factors. | Verify selected function; Check test leads for continuity; Perform calibration; Ensure stable operating environment. |
| Current measurement not working | Blown current fuse. | Replace the appropriate current fuse (refer to Maintenance). |
| Setup buttons not saving/recalling | Incorrect procedure for saving/recalling. | Ensure SHIFT is pressed before S1-S6 to save, and only S1-S6 to recall. |
Specifications
The following are key specifications for the Fluke 8808A Digital Bench Multimeter:
- Model Number: 8808A
- Resolution: 5.5 digits
- Basic DC Voltage Accuracy: 0.015%
- Measurement Functions: DC Voltage, AC Voltage, DC Current, AC Current, Resistance (2-wire and 4-wire), Frequency, Continuity, Diode Test
- Input Voltage Ratings: 1000V CAT I, 600V CAT II, 300V CAT III
- Current Measurement Range: Up to 10A (200mA MAX, 10A MAX)
- Resistance Measurement: 2x4 ohms 4-wire technique
- Display: Dual display
- Primary Power Source: 110V/120V AC
- Dimensions (L x W x H): 11.7 x 8.56 x 3.7 inches
- Weight: 1 pound
- UPC: 095969340137
Warranty and Support
Warranty Information
Fluke products are warranted to be free from defects in material and workmanship under normal use and service. The warranty period for the Fluke 8808A is typically one year from the date of purchase, but may vary by region. Please refer to the warranty card included with your product or visit the official Fluke website for detailed warranty terms and conditions.
Technical Support
For technical assistance, troubleshooting, or service inquiries, please contact Fluke customer support. You can find contact information on the official Fluke website or through your local distributor.
Official Fluke Website: www.fluke.com
