Resistance Calibrators
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Product
Transformer Winding Resistance Meters
TWA Advanced Series
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The TWA advanced series instruments are designed for six-winding resistance measurement and simultaneous three phase on-load tap changer analysis of both the primary and the secondary transformer windings. This is performed with a one singlestep cable setup, with test currents of up to 40A. Each transformer configuration has a special measurement algorithm which is optimized for the fast stabilization of test results. The TWA instruments generate a true DC ripple-free current. Both the injection of the current and the discharge of energy from the magnetic circuit are automatically regulated.
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Product
Ground Resistance Clamp Meter
61-920
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*Auto ranging*Auto power off*Hard case included*2-year warranty
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Product
Laser Calibration System, Superior Accuracy, Portability and Reliability
5530
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The configurable system offers all the components you need to perform a variety of measurements using the USB on your PC as the host controller and power source. For basic linear measurements you will need the USB Axis Module, USB Sensor Hub, Air and Material Sensors, Sensor Cables, Software, Laser, Laser Cable, Remote Control (optional)and the Linear Optics Set. Other available options include the Laser Tripod (with laser mounting plate), optics and fixturing kits for making additional types of measurements, and wheeled transit cases.
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Product
Spread Resistance For Slanting Polished Sample Of Semiconductor By Tow Kinematically-mounted Probe Contacting .
SRS-2010
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*Resitivity map along with depth direction, thickness of epitaxial , depth of PN junctin and carier density profiles
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Product
Contact Resistance Tester
JYL-200B/100B
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Product description: JYL-200B/100B contact resistance tester can measure contact resistance of high voltage switches and circuit breakeres, also can test primar side resistance of transformer and grounding wire in groups
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Product
Sound Level Meters & Calibrators
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A sound level meter, also known as sound pressure level (SPL), decibel (DB) meter, noise meter or noise dosimeter is mainly used for measuring sounds travelling through air. It is used to test noise or sound levels by evaluating sound pressure. It uses a microphone to capture sound and the sound is then evaluated in the device. It is commonly used to prevent loud noises to create a better work environment.
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Product
IEC60068-2-75 Spring Hammer Calibration Device
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Shenzhen Chuangxin Instruments Co., Ltd.
It is mainly used for the calibration of the spring hammer, which is based on IEC60068-2-75-1997 and GB2423.55-2006 standard design and manufacture, primarily for third-party testing organization, the National immigration department and appliance-related research institutes.
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Product
Measuring Earth Resistance
OSP-510
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Additional equipment to measure the earth resistance and soil resistivity AD-510.
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Product
Electrical Calibration
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Beijing GFUVE Electronics Co.,Ltd.
Checking condition , performance , sensitivity and accuracy of any electrical device.
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Product
Spectral Radiant Flux / Luminous Flux Calibration Standards
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Standard lamps calibrated in luminous flux and spectral radiant flux. Versions with 2-Pi and 4-Pi emission characteristics. Traceable calibrations in the wavelength range from 200 nm to 2500 nm.
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Product
Hydraulic Calibration for Load Cell
HLCS-10000
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Jinan Testing Equipment IE Corporation
The Hydraulic Calibration System is specially designed for the calibration of load cells with higher capacity. The Calibration for Load Cell can calibrate the load cell within +/-1%.
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Product
Transformer Winding Resistance Meter
XWRM-10
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The Motwane Manufacturing Company
The Motwane make XWRM-10 is a dual channel 10A rated, Transformer Winding Resistance Meter designed and developed aftere xtensive research on challenges and requirements of testing of various Transformer winding resistance. The instrument has One Current channel and two Resistance Channels. The instrument provides a large open circuit voltage of 42Volts, for fast charging of the highly inductive windings of transformers, to provide stable resistance values in minimum time. The XWRM-10 is intended to replace complex bridge set up with a single compact instrumentThe XWRM-10 is based on 4-wire measurement methodto measure low resistance accurately. The instrument iswell protected against inductive kickbacks offered by theinductive windings and gives stable reading on varioustypes of transformers.
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Product
Winding Resistance Meter
TRM 25
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SCOPE introduces 25 A state of the art precision winding resistance meter, specially designed for field testing as well as factory testing of large transformers up to 500 MVA. Winding resistance value of transformer and rotating machine are directly displayed on 5.7” TFT display. TRM 25 is designed to work in live EHV switchyard conditions, ensuring operator’s safety and repeatability of results. Maintenance time saving is ensured by one time connection to transformer with simultaneous resistance measurement of three / six windings, measurement of resistances of all taps with automated tap change and demagnetization facility. The meter is protected against the back-EMF offered by large inductive windings.
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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Product
High-Performance Multifunction Calibrator
5730A
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The new 50 MHz wideband option for the 5730A High-Performance Multifunction Calibrator provides expanded wideband capabilities to self-maintaining laboratories by providing a method to calibrate the 50 MHz input of the 5790B AC Meaasurement Standard. This is accomplished by characterizing the 5730A's 50 MHz output using a precision thermal voltage converter (TVC), thus reducing uncertainties to calibrate the 5790B.
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Product
Resistance Grounded Systems (HRG/LRG)
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Neutral Grounding Resistors (NGRs) are used to limit the maximum ground-fault current. Restriction of fault current lowers hazards and reduces damage done to equipment. High Resistance Grounding (HRG) systems are often used on industrial and critical power applications to maintain system uptime during a first ground fault. HRG systems are also used in tripping applications to help control touch potential on portable loads and improve personnel safety.
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Product
Energy Meter Calibration
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Beijing GFUVE Electronics Co.,Ltd.
The process of verifying the measurement accuracy and working status of the energy meter through the actual test.
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Product
Mask ventilation resistance and pressure differential tester
WKS-3102
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Mask ventilation resistance and pressure differential tester is used to measure the inhalation and exhalation resistance of mask under specified conditions. Applicable to mask manufacturers, labor protection equipment inspection agencies to carry out related testing and inspection of mask products, mask breath resistance tester, breathing valve air tightness tester, breath resistance machine for measuring respirator and mask protection products in Inspiratory resistance and expiratory resistance under specified conditions.
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Product
Multiport Calibration Assistant
S95552B
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The S95552B software application flexibly creates and manages calibration sets for multiport measurements. This software enables you to combine multiple calibration sets with independent test ports as one calibration set with a greater number of test ports. The software also offers a way to re-calibrate using a certain set of test ports to refresh the calibration set.
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Product
Optical Power Meter W/6 Wavelength Calibrating Spots
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With six wavelength calibrating spots (980nm, 1310nm, 1490nm, 1550nm, 1590nm and 1610nm), refined design, easy operation, linearity or non-linearity display, SC connector, the MXOPM26-50 hand-held optical power meter can be used for direct optical power measurement as well as relative measurement of optical link loss. It’s an essential test instrument in Optical Communication systems, CATV systems, construction and maintenance applications and more.
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Product
Electrical Test Equipment Calibrators
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The industry leading series provides by far the fastest and safest solution for calibration of Loop, RCD, PAT's and insulation testers.
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Product
Portable Humidity Calibration Case
Hygro-box
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Hygro-box is a easy-to-use, portable, IP68 humidity calibration case, suitable for outdoor or moving application.
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Product
Calibration Management Software
MET/CONNECT™
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Calibration Management Software through Fluke Calibration MET/CONNECT™ Qualer is a premier asset, maintenance and calibration management system providing a pre-configured, business-in-a-box, best in class, software solution for progressive companies. Fluke Calibration’s MET/CAL® is the leading calibration automation software platform, allowing calibration labs to harness the power of thousands of automated procedures. Qualer and MET/CAL® can now be connected through Fluke Calibration's MET/CONNECT™ integration app. This enables labs to leverage the power of MET/CAL® procedures and provide the results seamlessly to Qualer as their system of record. Qualer's partnership with Fluke Calibration and MET/CONNECT™ provides a seamless way to integrate the two platforms and bring the benefits of automated calibration into the Qualer platform.
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Product
Calibration Kit
N912
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*N912 Calibration Kit, * Frequency Range: up to 9 GHz, * Impedance: 50 Ohm, * Connector Type: N-type.
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Product
Class 2 Sound Level Calibrator
SPC70
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The SPC70 is a Class 2 sound level calibrator suitable for periodic testing of sound level meters and verifying their accuracy before and after readings, in accordance with international standards. The SPC70 is simple to use and provides a 1kHz reference at 94dB and 114dB. The output is accurate to 0.5dB with low levels of harmonic distortion. The SPC70 is compatible with the Martindale SP79 Class 2 Sound Level Meter and other meters with microphones up to 25mm.
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Product
Traditional Handheld Refractometer Calibration
BRX & DOT Series
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Two-point NIST Traceable Certified Calibration for the following refractometers: BRX 15, DOT3, DOT4, and other BRX prefix refractometers.
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Product
Thermometer Calibration
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In addition to the vast array of Thermometers that Comark has an offer, We also offer a range of devices to assist you with Thermometer Calibration.
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Product
Power Measurement And Calibration
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Portable, rugged and battery operated, Arbiter Systems® Power System Analyzers are revolutionizing measurements of instrumentation, relaying and metering circuits. Built with safety-first in mind, all products include multiple grounding technologies to protect against shock. Software and firmware is available to manage and analyze the data in real-time or post-analysis via computer.
