Contact Tachometers
Description
Contact tachometers are devices used to measure the rotational speed of a rotating object. They achieve this by coming into direct contact with the rotating part, allowing them to provide an accurate reading of revolutions per minute (RPM).
Working Principle
Contact tachometers operate by physically touching the rotating object with a probe or sensor. This contact allows the tachometer to directly measure the speed of rotation. The direct contact method is beneficial because it provides a straightforward and reliable means of obtaining speed measurements, which is particularly useful in environments where other types of tachometers might struggle due to interference or lack of visibility.
Applications
Contact tachometers are commonly used in various industrial settings where direct measurement of rotational speed is necessary. For example, they are often employed in the maintenance of machinery such as motors, engines, and conveyor belts to ensure they are operating at the correct speed. They are also used in quality control processes to verify the speed of production equipment.
Advantages over other Tachometers
One of the primary advantages of contact tachometers over other types, such as photoelectric or inductive tachometers, is their ability to provide accurate measurements in environments where optical or magnetic interference might affect other devices. Since they rely on direct contact, they are not affected by light conditions or magnetic fields, making them suitable for a wide range of applications.
Limitations
A significant limitation of contact tachometers is the need for physical contact with the rotating object, which can lead to wear and tear on both the tachometer and the object being measured. This requirement can also make them unsuitable for measuring the speed of very small or delicate components, or in situations where contact could pose a safety risk.
Considerations
When considering the use of contact tachometers, it is important to factor in the initial cost, which can vary depending on the specific model and features. Operating expenses may include regular maintenance to ensure the device remains accurate and functional. Durability is generally good, but the need for physical contact means that wear and tear can affect longevity. Accuracy is typically high, but it can degrade over time if the device is not properly maintained. Replacement and maintenance costs should also be considered, as the contact elements may need periodic replacement to maintain performance.
from HydraCheck Inc.
The MT-200 Combination Contact/Non-Contact Pocket Tachometer with microprocessor technology possesses the precision of the standard SHIMPO Tachometer line, yet within a compact, pocket-style enclosure. These battery-operated tachometers feature the same rugged, high quality components that have made... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact
- Accuracy: 1
- Operating Speed: 1 to 99999
- Tachometer Type: Instrument / Sensor Package
from RS Components, Ltd.
RS PRO DT-2235B Tachometer [See More]
- Sensor Technology: Contact Type (Roller) (Contact)
- Display Type: Digital Numerical Display
- Operating Speed: 0.5000 to 19999
- Features: Battery Powered
from PCE Instruments / PCE Americas Inc.
PCE-AT 5 Automotive Tester / Handheld Tachometer. Measures revolutions in one-cylinder two-stroke and eight-cylinder four-stroke combustion engines with electric ignition starters The PCE-AT 5 automotive tester / handheld tachometer is a portable compact device used to measure revolutions per minute... [See More]
- Sensor Technology: Contact Type (Roller)
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 100 to 200000
- Form Factor: Handheld
from HydraCheck Inc.
The Shimpo DT-2100 is the premium tachometer for engineers and maintenance professionals, the most highly advanced tachometer ever. Providing an unequaled level of user flexibility, the DT-2100 is the premium tachometer for engineers and maintenance professionals. Aiding the diagnosis of the most... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Accuracy: 0.0060
- Operating Speed: 6 to 99999
- Tachometer Type: Instrument / Sensor Package
from RS Components, Ltd.
RS PRO DT-2236 Tachometer [See More]
- Sensor Technology: Contact Type (Roller) (Photoelectric (Optical, Infrared), Contact, optical)
- Display Type: Digital Numerical Display
- Operating Speed: 19999 to 99999
- Features: Battery Powered
from PCE Instruments / PCE Americas Inc.
Digital rotation meter for both contact and non-contact measurement. PCE-T236 is a digital handheld tachometer or rotation meter for both contact and non-contact measurement. This tachometer measures rotation speed as well as linear or surface speed, displaying units in rpm, m/min or ft/min. The... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 5 to 99999
- Form Factor: Handheld
from HydraCheck Inc.
The DT-207LR tachometer incorporates laser technology yet retains Shimpo ’s hallmark rugged construction and reliable quality components; the unit offers incredible value and versatility as it performs non-contact and contact applications via the included contact adapter. We ’re... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Accuracy: 0.0060
- Operating Speed: 6 to 99999
- Tachometer Type: Instrument / Sensor Package
from RS Components, Ltd.
RS PRO DT-2236 Tachometer [See More]
- Sensor Technology: Contact Type (Roller) (Photoelectric (Optical, Infrared), Contact, optical)
- Display Type: Digital Numerical Display
- Operating Speed: 19999 to 99999
- Features: Battery Powered
from PCE Instruments / PCE Americas Inc.
The accelerometer sensor can be set flat, equipped with a magnet or combined with the included fastening screw to make contact with a surface during vibration measurement. Internal frequency filters eliminate the effects of background noise, allowing the device to detect specific vibrations. Note:... [See More]
- Sensor Technology: Contact Type (Roller)
- Accuracy: 2
- Operating Speed: 0.5000 to 99999
- Tachometer Type: Instrument / Sensor Package
from Electro-Sensors, Inc.
Digital Tachometer. Features. • Field programmable. • Displays rates from 0-9,999 or time-in-process. • Simple installation, panel mount meter. • Bright 0.3 inch high efficiency LED displays. • ETL approved to applicable UL and. CSA standards. The AP1000 Series Digital... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared), Magnetic)
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 0.0 to 10000
- Form Factor: Panel
from Trumeter Company, Inc.
The 4HT600 has eight measuring ranges and three modes. Mode change is effected by pressing the MODE button. The instrument can be operated in optical or direct contact modes (using adaptor supplied). The power turns off automatically 30 seconds after the last operation to conserve the batteries. [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Accuracy: 0.0200
- Operating Speed: 1 to 99999
- Tachometer Type: Instrument / Sensor Package
from Quality Bearings & Components
BETEX 1600 Digital Laser Tachometer. CONDITION MONITORING TOOLS. PART NUMBER: TB-C520800. BETEX 1600 DIGITAL LASER TACHOMETER. This professional digital tachometer is designed for recording rotational speeds (rpm) and peripheral velocities in m./min. as well as measuring the length of cables, ropes,... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact
- Accuracy: 1
- Operating Speed: 0.5000 to 100
- Tachometer Type: Instrument / Sensor Package
from REED-Direct
Microcomputer LSI circuitry provides accuracy to 0.05% and permits readings to a resolution of 0.1 RPM in either photo or contact mode. ABS plastic housing assures years of maintenance free performance. Designed to fit comfortably in either hand. Includes 3 contact adapters (2 cones, 1 funnel),... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 5 to 99999
- Form Factor: Handheld
from Global Digital Instruments LLC
The SenDEC Motortach performs Tachometer, Hour meter, and Flash Alert functions on ANY rotating shaft, rotating gear, or pulley. The MotorTACH does NOT require any external power and can be used on Diesel engines, Compressors, Heating motors, Process equipment, Power equipment, Generators, or a host... [See More]
- Sensor Technology: Contact Type (Roller)
- Accuracy: 10
- Operating Speed: 3000 to 6000
- Tachometer Type: Instrument / Sensor Package
from SKF/Global
The SKF TMRT series includes two user-friendly and accurate tachometers utilising laser or contact for measuring rotational and linear speed: TMRT 1 and TMRT 1Ex. Equipped with laser and contact adaptor, both tachometers offer excellent speed measurement versatility in five different modes. [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 3 to 99999
- Form Factor: Handheld
from Gefran
Tachometer with analogue output proportional to the speed and digital output. The power supply requirements and output signal levels are compatible with all the GEFRAN instruments [See More]
- Sensor Technology: Contact Type (Roller)
- Tachometer Type: Speed Sensor Only
- Operating Speed: 5000
- Display Type: None
from OMEGA Engineering, Inc.
The HHT13 is a digital, batterypowered portable optical pocket laser tachometer, which operates up to 7.6 m (25') from a reflective target using a laser light source. The ergonomic design allows safe, direct line-of-sight viewing of both the target and the display at the same time, while providing a... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared) (optional feature))
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 0.5000 to 200000
- Form Factor: Handheld
from Traceable® Products
Any rotating surface may be touched by the cone convex tip, funnel concave tip, or speed wheel for instant results Tachometer displays revolutions per minute (RPM) from 10.000 to 99,999 (resolution 0.001, 0.01, 0.1, 1). In addition, it reports results in feet per minute 3.0000 to 30,000, yards per... [See More]
- Sensor Technology: Contact Type (Roller)
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 10 to 99999
- Form Factor: Handheld
from Monarch Instrument
PLT200 is a digital, battery-powered portable optical tachometer, which operates up to 25 feet* from a reflective target using a Class 2 laser light source. The ergonomic design allows safe, direct line-of-sight viewing of both the target and the display at the same time, while providing a non-slip... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Accuracy: 0.0100 to 0.0500
- Operating Speed: 5 to 200000
- Tachometer Type: Instrument / Sensor Package
from Electro-Sensors, Inc.
Full Logic Control Process Ratemeter. Features. • Displays rate or time in process. • Easy installation and setup. • Completely field adjustable. • Single channel or quadrature decoding. • NEMA 4 faceplate. • Full diagnostic function. • Front panel reverse... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared), Magnetic)
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 0.0 to 10000
- Form Factor: Panel
from Quality Bearings & Components
BETEX 1620 Digital Laser Tachometer. CONDITION MONITORING TOOLS. BETEX 1620 DIGITAL LASER TACHOMETER. PART NUMBER: TB-C520820. This digital laser tachometer is suitable for maintaining and servicing engines, rotating equipment and machines. Specs: Display: 5-digit 10 mm LCD display. Contact range of... [See More]
- Sensor Technology: Contact Type (Roller)
- Accuracy: 0.5000
- Operating Speed: 5 to 100
- Tachometer Type: Instrument / Sensor Package
from REED-Direct
Surface speed measurements in fpm or mpm. Retains Min/Max and last reading for later recall. Automatic reverse display direction depending on which measurement mode you are in. Highly visible LCD readout. Includes 3 contact adapters (2 cones, 1 funnel), surface speed wheel, reflective tape and hard... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 10 to 99999
- Form Factor: Handheld
from Global Digital Instruments LLC
STS-5000 – Tachometer only that accurately displays up to 20,000 RPMs. Features programmable firing pattern for 1:1, 2:1, or 1:2 firing patterns. Max RPM recall stores the highest RPM registered until cleared by the user. Works on 1 and 2 cylinder applications. FS-500 – All the features... [See More]
- Sensor Technology: Contact Type (Roller)
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 20000
- Form Factor: Panel
from Electro-Sensors, Inc.
Full Logic Control Process Ratemeter. Features. • Displays rate, time in process, ratio,. sum, difference, or draw. • Completely field adjustable. • Full diagnostic functions. • Three programmable transistor setpoint outputs. • Three programmable AC inputs. • Start... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared), Magnetic)
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 0.0 to 10000
- Form Factor: Panel
from REED-Direct
Non-contact function utilizes laser light beam for improved accuracy. Recalls Max/Min and last values. Large, easy to read display. Autoranging with 0.05% accuracy. Includes battery and carrying case. SPECIFICATIONS: Photo Range: 5 to 99,999 rpm. Contact Range: 5 to 19,999 rpm. Surface Speed Range:... [See More]
- Sensor Technology: Contact Type (Roller); Non Contact (Photoelectric (Optical, Infrared))
- Tachometer Type: Instrument / Sensor Package
- Operating Speed: 5 to 99999
- Form Factor: Handheld