Fluke 931 Contact and Non-Contact Dual-Purpose Tachometers
The Fluke 931 Dual-Purpose Tachometer is a versatile, handheld device designed for both contact and non-contact RPM measurements. It provides highly accurate readings of rotational speed, surface speed, and distance while featuring a 6-digit backlit display, max/min/average value tracking, and easy switching between modes. Compact, lightweight, and ideal for various industrial applications, the Fluke 931 delivers precision, reliability, and ease of use.
Description
The Fluke 931 Contact & Non-Contact Tachometer is a professional-grade tool designed for engineers, technicians, and maintenance professionals working in industrial environments. Unlike the Fluke 930, which only supports non-contact RPM measurement, the Fluke 931 combines both contact and non-contact measurement modes, offering more flexibility and broader usage.
Equipped with a 6-digit backlit LCD display, the device ensures clear visibility even in low-light conditions. It features a signal detection reminder, which prevents inaccurate readings by notifying users when alignment is off or the signal is too weak. The tachometer allows users to measure RPM, surface speed, and distance with a high degree of accuracy.
The Fluke 931 supports maximum, minimum, and average value tracking, as well as final reading recall, making it ideal for continuous monitoring and analysis. Switching between contact and non-contact measurement modes is seamless, and the included different speed measuring heads enable users to adapt to various scenarios.
Designed for portability, the tachometer is compact, lightweight, and easy to hold, making it suitable for extended use in manufacturing plants, water treatment facilities, HVAC testing, automotive workshops, and other demanding environments.
Features
- Dual Measurement Modes – Supports contact and non-contact RPM measurement
- Measuring Range:
- Non-contact: 1 to 99,999 RPM
- Contact: 1 to 19,999 RPM
- Accuracy: ±0.02%RD + 1 digit
- Sensing Distance: Up to 500 mm (optical mode)
- Display: 6-digit backlit LCD for enhanced visibility
- Functions:
- Max/Min/Average value tracking
- Final reading recall
- Signal detection reminder for accurate alignment
- Auto power-off (can be disabled)
- Adaptability: Includes different speed measuring heads for multiple applications
- Power Supply: 2 × 1.5V AA (LR6) batteries
- Battery Life: Up to 40 hours continuous operation
- Compact & Lightweight: 175 × 60 × 28 mm, 250 g
- Applications: Automotive, textiles, pulp & paper, metalworking, water treatment, machining, HVAC compressors, chemical plants
- Warranty: 1 year
Includes
- 0.1 m wheel
- Conical speed measuring head
- Inner cone speed measuring head
- Lengthening rod
- 10 reflective stripes