High voltage probe 40kV

Fluke 80K-40 — High Voltage Probe

The Fluke 80K-40 (Part#: 382846) is a high voltage probe that extends the measurement range of an AC/DC voltmeter up to 40,000 volts peak AC or DC. The product is designed for measuring low-energy circuits inside equipment and must not be used for measuring high voltage on power distribution systems.

Features and Construction

• 1000:1 voltage divider with an input resistance of 1000 MΩ, minimizing circuit loading.
• The probe requires a voltmeter with 10 MΩ input impedance to achieve the specified accuracy.
• Passive attenuator with thick film resistors encapsulated in molded plastic for electrical insulation and user protection.

Documentation

Technical details and user guide can be found in the manufacturer's manual:

Typical Applications

The Fluke 80K-40 is specified for measurements on energy-limited circuits inside equipment. The manufacturer's manual explicitly mentions measuring high voltage in, for example, televisions and photocopiers.

Specifications

• Manufacturer: FLUKE
• Manufacturer's Part Number: 382846
• Product Type: High Voltage Probe
• Rated voltage range: 0 kV to ±40 kV DC or peak AC; 28 kV rms AC
• Division ratio: 1000:1
• Input resistance: 1000 MΩ
• DC-accuracy: 0–20 kV ±2 %; 20–35 kV ±1 % (at 20 °C–30 °C); 35–40 kV ±2 %
• AC-accuracy: approximately 5 % at 60 Hz
• Usage limitation: For energy-limited circuits inside equipment only; must not be used on power distribution systems
• Voltmeter compatibility: Mechanically compatible with standard dual banana plugs; electrically compatible with voltmeter with 10 MΩ ±1 %
• Dimensions (80K-40): 36 cm x 7.5 cm
• Weight (80K-40): 204 g

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