Monarch PT-99 Pocket Tachometer 99 with 12" Reflective Tape
The Monarch PT-99 portable noncontact tachometer measures from 5 to 99,999rpm with accuracy to + or - 0.01%, uses a red LED light beam, and has an LCD screen. This portable noncontact tachometer is used for measuring the speed of motors, conveyor belts, and other moving and rotational systems. It measures from 5 to 99,999rpm with accuracy to + or - 0.01%. Its optical sensor is a red LED light beam that works at a distance of up to 36 inches for user safety. The LCD screen presents test results and the unit of measurement, and has on-target and low battery indicators. It stores maximum, minimum, and last test result values for ease of data recall. The CE mark indicates compliance with applicable EU directives. The Monarch PT-99 can be tripod-mounted and locked to take continuous measurements. It comes with two AA batteries and reflective tape. This tachometer is suitable for measuring rotational speed in mechanical or industrial engineering environments.
| Range | 5 to 99,999rpm |
| Accuracy | +/-0.01% +/-1 digit |
| Resolution | 0.001 to 1rpm |
| Operating distance | Up to 36" |
| Display | 5 digits |
| Working temperature range | 5 to 40 degrees C (40 to 105 degrees F); 80% RH up to 31 degrees C (88 degrees F) |
| Power | (2) AA batteries |
| Dimensions | 6.92 x 2.4 x 1.6 inches (H x W x D) |
| Weight | 210g/7 oz. |
H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
Tachometers measure the rate of rotation or surface speed of motors, conveyor belts, and other moving systems. Contact tachometers take measurements through direct contact with the moving surface, and can measure both rpm and surface speed. Typically, contact tachometers come with a range of attachments that can be used to measure speed on different kinds of rotary systems, which may include tips used for measuring shafts with a central hole or flat end surfaces, and rotary wheels for measuring conveyor belts. Noncontact tachometers take measurements from a distance using a beam of infrared light, and provide highly accurate measurements. Contact tachometers are an excellent choice for dirty and dusty environments; noncontact tachometers only calculate rpm but are considered safer because they do not require the operator to be in close contact with the moving surface. Contact/noncontact tachometers, also known as dual, or combination tachometers, can be used to take contact and noncontact measurements. Some tachometers can also take other types of measurements, such as count or frequency, while others can output data to a computer for analysis. Tachometers are used in applications such as automobile maintenance, mechanical engineering, and maintenance of industrial equipment.
Monarch Instrument manufactures devices such as tachometers, stroboscopes, data loggers, and leak detectors. The company, founded in 1977 and headquartered in Amherst, NH, meets International Organization for Standardization (ISO) standard 9001:2008.
