Servo2Go.com    Greenville, DE 19807
May 28, 2013 Low Ripple DC Tachometers convert rotational speed into isolated analog voltage signal suitable for remote indication and control applications. Units provide DC output with no phase shift, from 1–10 V/1,000 rpm. Featuring 0.120 in. dia shaft for direct drive, products can be used in various types of equipment and as rate generators for velocity damping in position servos.

Electromatic Equipment Co., Inc.    Cedarhurst, NY 11516
May 02, 2013 Comprised of 2 English and 2 metric models, HTM Series use pointer and dial to display RPM and surface speed. Self-contained measuring instruments, featuring rugged construction, accommodate measuring ranges up to 50,000 rpm and surface speeds up to 25,000 fpm. Oversized 3 in. dia dial with 2 separate color scales facilitates reading of rpm and surface speed. Accuracy is ±0.5% over full scale, and 3-position range selector switch provides highest possible resolution for each application.

AutomationDirect.com    Cumming, GA 30040-9905
Apr 19, 2012 Available in standard 1/16 DIN size, CTT series accepts voltage and non-voltage inputs from NPN, PNP, or dry contact sensors and can operate as digital counter, timer, combination timer/counter, or tachometer. Counting speeds are selectable to 10,000 cycles/sec, and double-line, 6-digit, 2-color LCDs present values and facilitate setup. While Output 1 is SPST relay and NPN transistor that operate concurrently, Output 2 is available as SPDT relay or NPN transistor.

Dynapar    Gurnee, IL 60031
Nov 28, 2011 Featuring stainless steel sensor modules and ductile iron housings, RIM Tach 6200 and RIM Tach 1250 provide position and velocity feedback from electric motors in heavy-duty environments. Sensor modules use magnetic technology that delivers 70 thousandths air gap. To facilitate installation, devices are designed with axial play up to 0.50 in. and do not require precision tools or measurements. Diagnostic LED provides visual status of encoder functionality.

Electro-Sensors, Inc.    Minnetonka, MN 55343 9108
Mar 23, 2011 Without requiring any user calibration, ST420 detects magnetic pulses from rotating shaft-mounted pulser disc or wrap. Shaft speed monitor, with 18 mm dia, uses quartz crystal-based digital processing to convert pulses to smooth, continuous 4-20 mA analog signal directly proportional to pulse frequency. Magnetic pulse detector, signal processing capability, and 2-wire, loop-powered, 4-20 mA circuitry are combined into IP67-rated, stainless steel, M18x1 sensor housing.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Aug 06, 2010 Used to measure and display rotational speed of saw blades, grinders, engines, motors, and conveyor belts, Series TAC3 enhances operation via ergonomic design that provides direct line-of-sight viewing of display and target. This 32-function tachometer/ratemeter, totalizer/counter, and timer integrates 5-digit alphanumeric dual LCD that displays on-target, continuous measurement, laser, and low battery indication. Measurements of up to 999,999 can be viewed with on-screen multiplier.

AEMC Instruments    Foxborough, MA 02035
Oct 20, 2009 Intended for industrial and lab applications, CA1725 and USB-enabled CA1727 use non-contact method to measure rotation speed of any moving part or device up to 100,000 rpm. Photo reflective strip facilitates distance measurements, and optical sensor avoids external interference by incorporating active, modulated IR beam. Available with adapter for traditional contact type measurement, products can also measure from sensors with voltage outputs through external input.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Mar 26, 2009 Series LCT216 features easy to read display that shows both desired set point and current process value, along with operating mode that control is functioning in. Unit also offers 14 pre-programmed timer functions, and counting functions include 1- or 2-stage counting along with batch, total, or dual counting modes. When used as tachometer, device is able to measure rotational speeds.

Extech Instruments Corp.    Nashua, NH 03063
Nov 18, 2008 Featuring 6:1 field of view, RPM10 utilizes laser light source and measures 10-99,999 rpm from up to 6.5 ft away from target in photo mode. Contact mode supports measurements from 0.5-20,000 rpm, while linear surface speed measurements range from 0.2-6,560 fpm. Measurements of both modes are accurate to 0.05% with max resolution of 0.1 rpm. Also included, non-contact IR thermometer with laser pointer provides surface temperature measurements in -4 to +572°F range.

Carlo GAVAZZI Automation Components    Buffalo Grove, IL 60089
Aug 22, 2008 Capable of measuring and processing 2 independent pulse signals, Model UDM60 has dual 6-digit, backlit LCD display and dual analog indicator. It processes complex logic and math functions while maintaining programming process through panel mounted keypad or UDMSoft software. Unit features dual rate, speed, frequency, and period measurement, dual counter, 0.001% RDG basic accuracy, 0.001 Hz to 50 kHz input range, inputs with scaling and linearization, and special calculation functions.

Phoenix America, Inc.    Fort Wayne, IN 46804
Sep 05, 2007 Intended for lower-resolution industrial applications, Model P9112 functions as incremental angular position encoder when used with 5/8 in. multi-pole magnet target wheel which can be custom configured for wide variety of shaft sizes and styles. Industrial grade tachometer/encoder comes with 1 in. dia bolt hole pattern, 2-channel quadrature output, and no moving parts. Rugged unit operates in dirty environments.

Kernco Instruments Co., Inc.    El Paso, TX 79927 7338
Feb 22, 2007 Model No. 21F24 can be used as contact or non-contact (optical) tachometer and operates for 40 hr on 2 AA batteries. When used as optical tachometer, unit can measure up to 100,000 rpm from up to 14 ft away. As contact tachometer, with standard accessories, it can measure up to 25,000 rpm or equivalent in YPM, MPM, FPM, and IPM. Same unit can also measure length in yards, meters, feet, and inches and offers memory recall of Last, Max, or Min readings.

Electro-Sensors, Inc.    Minnetonka, MN 55343 9108
Jun 14, 2006 Suited for real-time maintenance feedback and machine diagnostics, network-powered SpeedTalker DN (UI) is capable of measuring speed and direction when using bidirectional sensor. Product provides measured shaft RPM from up to 2 input channels along with status of up to 8 independent under/over speed threshold alarms over DeviceNet network. Along with electrically isolated universal differential pulse inputs, tachometer provides isolated 24 Vdc sensor power.

Shimpo Instruments    Itasca, IL 60143
Feb 01, 2006 Usable in contact applications from 0.8-25,000 rpm and non-contact applications from 6.0-99,999 rpm, all-metal DT-209X offers simultaneous storage of data in 3 different measuring modes: USB, standard, and average. Users can download features and online controls, show trending and real-time data via USB communication, and access data via included software. Unit features programmable 1 V analog output and time display with synchronized clock.

Shimpo Instruments    Itasca, IL 60143
Jan 24, 2006 Suited for contact and non-contact applications, Model DT-209X simultaneously stores data in USB, standard, and average measuring modes. Device offers length and rate measurement; selectable units of measure; data calculation for last, min, max, and average readings; and smart settings for trigger, max, and min limits. Housed in aluminum enclosure, tachometer includes 5-digit display, ¼ x 20 mounting hole, and programmable 1 V analog output for chart recorders.

Kernco Instruments Co., Inc.    El Paso, TX 79927 7338
Jun 17, 2005 Combination Model 461825 contains stroboscope to analyze rotating objects and freeze motion, and tachometer to measure revolutions/min. Photo tachometer provides range of 5–99,999 rpm, while stroboscope indicates 100–100,000 fpm/rpm. Microprocessor-based unit includes quartz crystal oscillator and operates with four 1.5 V AA batteries for portability. Five-digit LCD display features characters that reverse direction depending on measurement mode.

Extech Instruments Corp.    Nashua, NH 03063
Apr 05, 2005 Photo/Contact Tachometer, Model RPM10 utilizes built-in, non-contact IR thermometer with laser pointer to provide surface temperature measurements from -4 to 572°F in hard-to-reach or unsafe locations. With 6:1 field of view, 1 in. spot can be measured at distance of 6 in. In photo mode, unit measures 10-99,999 rpm from up to 6.5 ft from target. In contact mode, it measures 0.5-20,000 rpm, while linear surface speed measurements range from 0.2-6560 fpm and 0.05-1999.9 m/min.

Control Company    Friendswood, TX 77546
Feb 25, 2005 Traceable® Touch Tachometer measures centrifuges, pumps, roller, shafts, gears, motors, and moving surfaces. It displays rpm from 10.000-99,999 and reports results in 3.0000-30,0000 fpm, 1.000-10,000 yards/min, and 1.000-9999.9 mpm. Featuring precision quartz crystal, meter includes hold button to freeze readings, sampling time of 2 sec, low-battery indication, and impact-resistant ABS housing. It is supplied with 9 V battery and Traceable® Certificate.

Kernco Instruments Co., Inc.    El Paso, TX 79927 7338
Feb 24, 2005 Model DT-2235 hand-held LCD Digital Tachometer comes with accessories to measure rotational and lineal speeds up to 10,000. Solid-state and battery operated model comes with memory feature to retain last reading for recall purposes. Unit weighs 10 oz, measures 6¾ x 2-7/8 x 1½ in., and operates off 4 AA batteries for approximately 20 hr of continuous operation.

Monarch Instrument    Amherst, NH 03031 2334
Aug 17, 2004 Battery-powered, optical Pocket Laser Tachometer PLT200 operates up to 25 ft from reflective target using laser light source. With remote sensor and remote contact capabilities, portable unit features ergonomic design that allows simultaneous, direct line-of-sight viewing of target and display. TTL output is provided to interface with portable vibration data collectors and balancers or any device that can accept TTL trigger.