Help with Tachometers specifications:
Performance Specifications
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| Rotational Speed Range | Rotational speed is also referred to as speed, revolution, or rotary speed. Rotational speed is the number of rotations or revolutions per unit time, typically RPM. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Tachometer Technology
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| Tachometer Type | |||
| Your choices are... | |||
| Speed Sensor Only | The tachometer contains the speed sensor only. An indicator is required to display the rate. | ||
| Indicator Only | The tachometer offers indication only and accepts input from remote sensors. | ||
| Instrument / Sensor Package | The tachometer is an instrument or some combination of a rate sensor and visual indicator. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Sensor Technology | |||
| Your choices are... | |||
| Contact | The tachometer probe or sensor comes in contact with the rotating part. The tachometer may come equipped with shaft extensions, adapters, or circumference wheels. Circumference wheels allow for surface speed measurements or length measurement. | ||
| Non Contact | Non-contact tachometers measure the rotational speed of the shaft without direct contact. They are available in a variety of technologies including optical (photoelectric, visible light, laser, or magnetic (inductive or hall effect). | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Form Factor
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| Your choices are... | |||
| Benchtop | Benchtop tachometers are designed to sit atop a bench or desktop. | ||
| DIN Rail | DIN rail tachometers are designed to mount on a standard DIN rail. DIN is an acronym for Deutsches Institut für Normung (DIN), a German national organization for standardization. | ||
| Handheld | Handheld tachometers are designed to be operated while held by hand. | ||
| Panel Mount | Panel mount devices fit a depression within a panel so that they are flush or nearly flush with the panel. | ||
| Other | Other unlisted, specialized, or proprietary form factor. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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User Interface
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| Display: | |||
| Your choices are... | |||
| None | The tachometer does not have a local display. | ||
| Analog | The tachometer shows visual indication of the rate via movable needle on a dial. | ||
| Digital | The tachometer provides rate indication via alphanumeric display. The display may be LED or LCD. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Interface / Control: | |||
| Your choices are... | |||
| Knobs / Switches | The tachometer has analog user inputs such as potentiometers, dials, or switches. | ||
| Digital Front Panel | The tachometer may be setup or programmed through the front panel using a digital keypad. | ||
| Computer Programmable | The tachometer can be programmed and/or controlled remotely with a computer. | ||
| Networkable | Devices are designed to be part of a network, connected to other computers for the purposes of monitoring or control. | ||
| Web Enabled | Devices use hardware and software protocols such as hypertext transfer protocol (http) or web access protocol (WAP) in order to be addressable to, or a node of, the World Wide Web for remote monitoring or communication. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Outputs
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| The type of electrical signal that will be produced. | |||
| Your choices are... | |||
| Analog Voltage | Tachometers produce analog DC voltage outputs such as ±5 V, 0 - 10 V, etc. | ||
| Current Loop | Tachometers produce a current loop output such as 0 - 20mA, 4 -20 mA, 10 - 50mA, etc. | ||
| Pulse / Frequency | The tachometer output is an analog frequency value, a pulse train, or a similar variable. | ||
| Switch / Relay | The output is a switch or relay that can be "on" or "off". | ||
| Serial / Digital | The tachometer outputs include signals in serial, parallel, Ethernet or other digital formats which indicate a process variable. This includes process measurement, but not communication lines. | ||
| Other | Other unlisted, specialized, or proprietary output. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Features
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| Your choices are... | |||
| Application Software | The tachometer is provided with application software. | ||
| Audible / Visual Alarm | The tachometer has built-in audible or visual alarms to alert users of a predefined situation. | ||
| Battery Powered | The tachometer runs on battery power. | ||
| Counter / Totalizer | The tachometer has counting or totalizing functions. | ||
| Data Logger | The tachometer logs or records digital data from sensors. | ||
| Linear Speed / Length Measurement | In addition to the rotational speed, the tachometer is capable of providing indication of linear speed or length measurements. This is often possible with handheld tachometers and the aid of a measuring wheel or cone. | ||
| Self Calibrating | The tachometer has a built in calibrator that can be used for self calibration. | ||
| Self Test / Diagnostics | The instrument has built in or self test diagnostics. | ||
| Timer | Measurement time can be set or timed. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Environment
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| Operating Temperature: | The temperature range over which the device must operate. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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