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Sensors Monitors & Transducers ->
Sensors & Detectors ->
Electrical Sensors ->
Voltage Sensors
Voltage Sensors
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Optocouplers detect voltage and current thresholds.Avago Technologies
San Jose, CA 95131
Nov 25, 2009
Suited for industrial control applications, ACPL-K370/K376 detect AC/DC sources and convert voltage to logic interface across optical coupling barrier to provide safe isolation in electronically noisy environments. Threshold sensing input buffer ICs permit control of threshold levels over wide range of input voltages up to 1,140 Vpeak, with single external resistor. Housed in SO-8 package, detectors operate from -40 to +105°C and meet 8 mm clearance and creepage requirements.
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 Pressure Sensor comes with digital instrumentation.Red Valve Company Inc
Carnegie PA 15106
Oct 30, 2009
Available in 2-12 in. flange mounting, Series 45 pressure sensors are suited for tank level control and indication to prevent overflow of tanks. Remote digital read out can be installed in flange outlets on storage tanks. Digital instrumentation allows operator to remotely control pumps filling tanks fully without spillage, increasing total storage holding capacity of tank or series of tanks. Product can be battery, loop, or voltage powered.
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Transducers provide DC current monitoring.American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Aug 25, 2009
Available for differential and ground fault current monitoring, space flight Series S 767 and military grade Series 913 B provide isolated analog output directly proportional to input magnetically. Featuring ½ in. aperture, Series S 767 operates on 22-36 Vdc power with response time of 50 ms. Series 913 B, designed with ¾ in. aperture, operates from 24-32 Vdc power with response time of 1 ms. Both chassis-mount series feature 0 to +5 V output and accuracy of 1% FS.
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 Mini Shock/Vibration Logger takes 1,000 measurements/sec.Saelig Co., Inc.
Pittsford, NY 14534
Aug 06, 2009
Model MSR165 triaxial digital accelerometer mini datalogger allows for simultaneous temperature, humidity, pressure, light, and analog input voltage recording. It can store over 2 million measurement parameters and continuously record for 32 msec before main shock event. At 39 x 23 x 72 mm and 69 g, it operates on 150 mA at 13-bit resolution, and has rechargeable 900 mAh lithium-polymer battery. Memory can be expanded with microSD card and data transferred to PC via USB interface.
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 AC Current Detectors come in clamp-on and pass-thru models.American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Jul 16, 2009
Designed to compare AC input to fixed or adjustable current threshold, Series 870 and ACS-3 provide isolated switch or relay output that is activated as required. Housed in metal case and operating from -20 to +71°C, Series 870 features SPDT relay output with 10 A contacts, frequency from 47-63 Hz, and ¾ in. dia aperture. Series ACS-3, operating from -50 to +65°C, is housed in plastic case with solid state switch output, frequency from 6-100 Hz, and response time of 200 msec.
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OVP Device offers automatic USB/charger-detection capability.Fairchild Semiconductor
San Jose, CA 95134
Feb 17, 2009
Incorporating on-board FET, FAN3989 detects presence of USB charger, eliminating external circuitry, and resulting in 15-20% of board space savings. It also monitors VBUS for over or under-voltage conditions, setting FLAG 2 pin low if VBUS is under 3.3 V or over 6.0 V, while turning off internal PMOS load switch. Suited for cell phone applications, unit comes in compact 8-lead MLP packaging, utilizes Pb-free terminals, and meets IPC/JEDEC standard for Pb-free reflow requirements.
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Low-Power SMT RMS Detector accurately measures RF power.Linear Technology Corp.
Milpitas, CA 95035-7417
Nov 04, 2008
Supplied in 3 x 2 mm DFN, LT5581 broadband 10 MHz to 6 GHz RMS detector features 40 dB dynamic range and 1.4 mA operating supply current. DC voltage output, proportional to log input power, provides mV/dB scaling with linearity exceeding ±1 dB across 40 dB range. Measurement ability provides RF power readings to ±0.2 dB, regardless of waveforms that have high crest factor modulated content. Solution delivers accuracy of ±1 dB over -40 to +85°C range and operates over 2.7-5.25 V range.
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 In-line Sensor monitors electrostatic charge build-up.Trek, Inc.
Medina, NY 14103 9710
Oct 03, 2008
Model 875 features measurement probe with automatic calibration technology that maintains accuracy and speed even as distance between non-contacting probe and monitored surface changes. Features include measurement range of ±500 V DC or peak AC, accuracy of ±0.5%, speed of 25 ms, and low noise of 2.5% FS. Buffered output voltage and current monitors are provided for remote monitoring and alarm purposes. Unit is powered by +24 V DC and enclosure mounts on 35 mm DIN rail.
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Optical Sensors feature ac or dc voltage operation.Banner Engineering Corp.
Minneapolis, MN 55441
Sep 16, 2008
With compact housing that has 18 mm threaded barrel or basemount, side-mount, and retrofit bracket options, WORLD-BEAM® QS18 Universal Voltage sensors offer 20-140 Vac/dc or 20-270 Vac/dc operation with P-MOSFET (sourcing)/N-MOSFET (sinking) solid-state output. Sensing modes include opposed pair, retro-reflective, polarized retro-reflective, diffuse, and long range diffuse models for sensing up to 1 m. Rated PW12 (1,200 psi) for washdown environments, they come in dark/light operate models.
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 Hand Tools include integrated voltage sensor.Del City
Milwaukee, WI 53209
May 30, 2008
Featuring ergonomic, cushioned handles, line of Circuit Alert(TM) Tools includes screwdrivers, wire strippers, pliers, flashlights, and utility knives, all with built-in removable voltage detector that produces audio and visual alert when it detects live circuit. Tools are made of forged steel for light weight, and many are multifunctional for completing variety of tasks.
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 Voltage Sensor measures voltages from -30 to +30 V.Phidgets, Inc.
Calgary, AB T2M3R7 Canada
Jan 17, 2008
Using differential inputs, Precision Voltage Sensor Model 1123 does not require common ground and can measure voltages across components or at other points in circuit. Typical error is ±100 mV and max error over sensor range is ±500 mV. Users can program Phidgets software using API that is supported under Windows, Windows CE, Mac OS X, and Linux.
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 Connectors provide power indication via color LED.Seco-Larm
Irvine, CA 92606-5012
Oct 19, 2007
CA-1610-3FLQ Male Plug, CA-1510-3FLQ Female Jack, and CA-1615-06LQ Test Light/6 in. Extender illuminated power connectors feature built-in LED for troubleshooting of CCTV and access control products. Blue light indicates correct polarity DC, red indicates incorrect polarity DC, and purple indicates AC power. Operating in 5-30 Vac/Vdc range, devices have illumination that glows from all directions to indicate voltage.
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 Troubleshooting Kit addresses electrical testing needs.Extech Instruments Corp.
Waltham, MA 02451 1020
Apr 30, 2007
Suited for installation and repair of electrical systems, HVAC equipment, and large appliances, Model TK430-IR Industrial Troubleshooting Kit measures 9.5 x 6.8 x 2.8 in. It comes with Model EX430 True RMS autoranging digital multimeter, Model MA200 400A AC clamp meter, 42510 mini IR thermometer, 40130 non-contact voltage detector, set of CAT III-1000V test leads, Type K thermocouple bead probe, Type K banana input adaptor, multimeter hanging strap, and batteries.
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 Voltage Detector offers portable, non-contact operation.Ideal Industries, Inc.
Sycamore, IL 60178
Mar 02, 2007
VoltAware(TM) detects voltage from 50-1,000 Vac at outlets, switches, and electrical panels without contact with bare conductor. Alerting electricians of energized circuit via beep and high-intensity LED that switches from green to flashing red, it can be used to locate breaks along insulated cord or identify hot and neutral at receptacle. CAT IV 1,000 V rated device features continuous battery testing while on, automatically shutting down if power slips too low.
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 Voltage Detector provides non-contact operation.Fluke Corp.
Everett, WA 98203
Dec 18, 2006
Used for both industrial and commercial applications, Fluke LVD2 Volt Light combines non-contact voltage detection from 90-600 Vac with white LED flashlight in compact, pen-style tool. Pocket-sized device is CAT IV 600 V rated, glows blue within 5 in. of ac voltage source, and red when within 1 in. of source. Detector features operating temperature of 0-50°C, LED with 100,000 hr lifetime, and AAA battery.
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 Voltage Portal minimizes arc flash risk.Grace Engineered Products, Inc.
Davenport, IA 52807
Nov 16, 2006
ChekVolt(TM) provides no-touch voltage portal on outside of metallic electrical enclosures, allowing maintenance personnel to use non-contact voltage detector pen to check line voltage before and after they open main disconnect. Single-point ChekVolt R-1A has 6 ft leads, mounts into 0.50 in. drilled hole, and can be ordered with bright yellow nameplates. Unit is a UL listed, 600 V device rated for NEMA 4/4X/12 environments.
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 Voltage Detector includes LED flashlight.Pomona Electronics
Pomona, CA 91766 3835
May 22, 2006
Combining ac voltage detector and flashlight in one device, LumaVolt can detect voltages of 40-300 Vac from 1-15 in. away from source. Flashlight features ultra-bright white, 100,000 hr LED. Unit operates on standard AAA batteries for long life without need for lithium batteries.
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 Digital Multimeters include non-contact voltage indicator.Ideal Industries, Inc.
Sycamore, IL 60178
Mar 08, 2006
Series 350 testers offer built-in voltage indicator that issues audible and visual signals in presence of live 80-600 Vac circuit. Testers have UL safety rating to CAT III-600V. Model 61-354 with True RMS tests ac/dc current from 2.000-0.000 A, measures 750 Vac/1000 Vdc voltage, 20 Mohm resistance, and offers continuity certification. Model 61-352 performs same tests without True RMS feature, while entry-level 61-350 carries out general-purpose voltage, resistance, and continuity functions.
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 Sensing/Scanning Products find wood and metal behind walls.Greenlee Textron, Inc.
Rockford, IL 61109
Dec 27, 2005
Featuring ac detection, SF-420AC finds wood and metal studs and joists behind surfaces up to 1½ in. deep. Its SpotLite® Pointing system shines green beam of light over stud edges. Model SF-530 finds copper and other non-ferrous metal up to 1½ in. deep and ferrous metal in concrete up to 3 in. deep. It offers same tracing features as SF-420AC and includes backlit LCD display. Metal Locator LCD display, SF-780, relays proximity, type of metal, and depth of metal up to 6 in.
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 Portable AC Voltage Detector has pocket-sized design.Fluke Corp.
Everett, WA 98203
Sep 14, 2005
Fluke 1AC-II VoltAlert(TM) and Fluke 1LAC-II VoltAlert are CAT IV, 1,000 V overvoltage-rated units that enable users to test for energized circuits and defective grounds by touching tester tip to terminal strip, outlet, or cord. Incorporated VoltBeat(TM) technology provides continuous self-test capability, which scans for battery performance and circuit integrity and indicates if device is working properly. Voltage sensing ranges are 90-1,000 Vac or 200-1,000 Vac.
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