481 - Detector FLUKE - Free user manual and instructions
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| Product Type | Non-contact Voltage Detector |
| Brand | Fluke |
| Model | 481 |
| Voltage Range | 90 V to 1000 V AC |
| Frequency Range | 50/60 Hz |
| Detection Method | Non-contact electrostatic field |
| Power Supply | 2 x AAA alkaline batteries |
| Battery Life | Approximately 40 hours |
| Indication | Audible beeper and red LED |
| Dimensions | 140 mm x 25 mm x 19 mm |
| Weight | 45 g (including batteries) |
| Safety Rating | CAT IV 1000 V |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -20°C to 60°C |
| IP Rating | IP54 (dust and splash resistant) |
| Maintenance | Clean with dry cloth; replace batteries when low |
| Repairability | Not user-repairable; contact Fluke service center |
Frequently Asked Questions - 481 FLUKE
How do I test if the Fluke 481 is working?
To verify operation, hold the tip near a known live AC voltage source (e.g., a wall outlet). The detector should beep and the LED light up. For a self-test, press the button while touching the tip to the test loop (if present).
What voltage range does the Fluke 481 detect?
The Fluke 481 detects AC voltage from 90 V to 1000 V with a frequency of 50/60 Hz. It is designed for standard electrical systems.
How do I replace the batteries?
Slide the battery compartment cover off, remove old AAA batteries, and insert two new AAA batteries with correct polarity. Reattach the cover. Dispose of old batteries properly.
Is the Fluke 481 safe to use on high voltage?
Yes, it is rated for CAT IV 1000 V, making it safe for use on high-voltage distribution systems. Always follow safety guidelines and wear appropriate PPE.
Can the Fluke 481 detect voltage in cables or wires?
Yes, it can detect voltage through insulation up to a limited distance. Hold the tip close to the wire; the detector will indicate presence of live voltage.
What should I do if the detector does not beep?
First, check and replace the batteries. Then perform a self-test on a known live source. If it still fails, the device may be damaged and should be returned to Fluke for repair.
How do I clean the Fluke 481?
Use a dry, soft cloth to wipe the exterior. Do not use solvents, water, or abrasive cleaners. Keep the tip clean for best performance.
Does the Fluke 481 have an automatic shut-off?
Yes, it has an auto-off feature to conserve battery life. The detector will turn off automatically after a period of inactivity (typically 2 minutes).
Can I use the Fluke 481 on DC voltage?
No, the Fluke 481 is designed for AC voltage detection only. It will not respond to DC voltage. For DC detection, use a suitable multimeter.
What is the IP rating of the Fluke 481?
The Fluke 481 has an IP54 rating, meaning it is protected against limited dust ingress and splashing water. It is not waterproof.
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