Resistance Calibrators
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Standard Series
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When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method 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, simultaneously with the measurement of tap changer motor current which helps with the detection of 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 on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D 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 shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
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Temperature Calibrators
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Ensuring process temperature accuracy involves calibrating not only the system’s electronic temperature signals, but also the very temperature sensors that initiate those signals. Rugged Fluke handheld temperature calibrators source and measure RTDs and thermocouples, power transmitters, and store data. Fluke Calibration temperature sources cover temperatures from -45 °C to 1200 °C and include handheld, portable, and benchtop calibrators. Infrared thermometer calibrators and reference measurement thermometers ensure every necessary tool is available to you.
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Product
Fungus Resistance Testing
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End-to-end testing helping you ensure your product's performance and resilience against fungal growth and fungus-susceptible field environments.
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Megohmmeters/Insulation Resistance Testers
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Full line of megohmmeters with test voltages 50V to 5000V. Capability to measure insulation resistance up to 10T. These rugged, weather resistant meters are accurate, reliable and built to perform. Battery, AC Powered & Hand-cranked models available.
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Product
Digital Light Meter, Calibrated
93-172-C
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Measures incandescent, fluorescent, metal halide, high-pressure sodium and halogen lampoutput. Color and cosine-corrected for enhanced accuracy. Measures up to 50,000 lux. Peak and data hold means no lost measurements. Accessories included: (1) 9V battery and carrying case. Lifetime Limited Warranty.
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Product
Temperature Calibration
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Process Instruments maintains primary temperature standards for the calibration of Standard Platinum Resistance Thermometers. SPRT''s are measured against a Thomas-type Ten Ohm Standard Resistor (a Leeds & Northrup 4211-B), using a Measurements International automated bridge. Primary thermometry points are maintained at the Water, Tin, Zinc and Gallium points.
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Product
Intelligent Digital Multimeter, Calibrated, 3999 Count, Mean Value, Auto, Manual Range, 3.75 Digit
72-7755 CAL DU
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The 72-7755 CAL DU from Tenma is an intelligent digital multimeter. It has auto range or manual range options and dual display with maximum reading 3,999 displayed in 40 analogue bars in scale making the measured value to be seen clearly and indicating the trend of changing quickly. In addition to conventional measuring functions, there is a new breakthrough in frequency test with maximum range of 400MHz. RS232C standard serial port is equipped with meter for easy connection with computer to realize macro recording and monitoring and capture of transient dynamic data, displaying change of waveform during measurement, providing data and evidence to engineering technicians for scientific research. This is also a highly applied digital multimeter of high performance with full input protection and display backlight. The orange and grey colour meter features 73mm × 50mm size LCD, CAT III 1000V and CAT IV 600V safety ratings.
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Product
Trace-Level Photometric Ozone Calibrator
Model T703U
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Teledyne Advanced Pollution Instrumentation
The Model T703U is a microprocessor controlled ozone calibrator for precision gas analyzers. Expanded ozone audit levels have created a need for precise ozone calibration well below the capabilities of standard calibrators. The Model T703U is designed to meet the requirements of ultra-low ozone production.In addition to a high range with similar performance to the Model T703, the Model T703U has the capability to generate ozone in a low range, or "fractional" mode, for producing ozone levels down to 3 ppb, with exceptional accuracy. Flow rate and lamp intensity are adjusted to deliver a specified ozone concentration by volume. The temperature and pressure compensated photometer, identical to that of the Model T400 ozone analyzer, provides feedback control of the UV lamp intensity, assuring stable ozone output. A nearly unlimited number of calibration sequences may be programmed into the non-volatile memory of the T703U, covering time periods up to a year.
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Product
Calibration Hex Step Adapters
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When performing torque wrench calibration or testing, adapters are often needed, especially with torque wrenches that have open-end heads. Mountz’s calibration hex step adapter features four common sizes, which will increase the productivity of your torque wrench calibration process. This adapter will make testing and calibration simple and efficient.
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Product
Argon Calibration Source
AR-1
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The AR-1 produces low-pressure argon emission lines from 696-1704 nm for use in performing fast, reliable spectrometer wavelength calibrations.
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Product
Ground Earth Resistance Tester
2678X
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Shenzhen Chuangxin Instruments Co., Ltd.
Ground Earth Resistance Tester verifies the integrity (continuity) of the protective bonding of the equipment (Class I equipment) designed to secure safety through the basic insulation and protective earthing. It is also called earth (ground) bonding test. If the continuity of the protective bonding is confirmed, we can conclude that the equipment has the requirements for preventing electric shock even if the insulation between the primary circuit and the accessible conductive section fails and a fault current flows through the distribution system.
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Product
Calibrator, Calibrated w/Data, Current, 185 mm, 78 mm, 38 mm
72-6694 CAL D
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The 72-6694 CAL D from Tenma is a current calibrator. It provides quality and accuracy of handheld calibrator of precision current source. It features large LCD display (maximum display counts 1999, 13mm (0.5") digit size). The current calibrator has 006P DC 9V, MN1604/PP3 battery or equivalent alkaline type or heavy duty type power supply. The dimension is 185mm × 78mm × 38mm (7.3" × 3" × 1.5") and weight is 265g/0.58lb (including battery). It has adjustable 0 to 24mA current source, 2 ranges (0 to 19.99mA (0.01mA display resolution, ±(0.25% FS + 1d) accuracy), 0 to 24mA (0.1mA display resolution, ±(0.5% FS + 1d) accuracy).
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Product
Hand Held Sheet Resistance Measurement Instrument[Replaceable Probe Set (Non-destructive Probe & Contact Probe) ]
DUORES
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Easy to measure sheet resistance & carry aroundReplaceable hand-held probes for Non-destructive & Contact type
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Product
Full- Channel Resistivity Meter
ZZ Universal 64
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ZZ Resistivity Imaging Pty. Ltd.
Comprehensive resistivity instrument. 61 channel system.
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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
ECPR System (Electrically Calibrated Pyroelectric Radiometer)
Rs-5900
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Developed in conjunction with NIST, the Rs-5900 ECPR is a ±1% absolute accuracy radiometric transfer standard for the visible to near-IR (0.25-2.0µm), with the RsIR Option extending the ±1% accuracy to >20µm. The RsP-590 Pyroelectric Probe requires no cooling and maintains ±1% accuracy from 1 µW to 100 mW. The ECPR uses an auto-nulling, electrical substitution technique that allows the instrument to be referenced against NIST electrical standards, insuring maximum accuracy and precision. Unlike most electrically calibrated radiometers, there is a direct correlation between electrical and optical heating because the same material serves as both the optical absorber and electrical heating element.
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Light / Lux Meter, Calibrated, 50000 lx, 100 lx, 4 %, 185 mm, 78 mm, 38 mm
72-7250 CAL
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The 72-7250 CAL from Tenma is a digital light meter with RS232 capability. It has custom one-chip microprocessor LSI circuit which ensures high accuracy. The meter features 13mm (0.5”) super large LCD display with contrast adjustment for best viewing angle, data hold and auto power off. It records maximum, minimum and average readings with RECALL facility. The 72-7250 has RS-232 PC serial interface, user selectable lighting type (tungsten, fluorescent, sodium or mercury, daylight) and zero adjustment by push button. The meter operates from 9V battery.
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CableEye 4-Wire Calibration Verification Board | Cable & Harness Testers
CB52
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The CB52 is intended for periodic calibration verification of the Kelvin 4-wire resistance measurement module – an optional, add-on module that may be purchased with any new hipot system, or added to an existing high voltage tester as an upgrade.
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Product
Calibration Lead Precision Resistor - Single
40-975-009-SL1
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The cable assembly is specifically designed to connect to the 9-Pin D-Type calibration port located on the front panel of Pickering Interfaces Module Part Numbers 40-260, 40-261, 40-262, 40-263 and 40-265.
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Product
Calibration Software
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Calibration software is available to automate all or part of many calibration processes, manage calibration and asset data, and perform other useful tasks as well. Fluke Calibration offers a variety of market leading software applications in each of its product disciplines.
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Non-contact Sheet Resistance Multi-points Measurement System With Wide Range
NC-80MAP
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*Possible to measure wide range of sheet resistance by installing Max. 4 probes*Min. 7 mm position from edge can be measured*User programable measurement pattern & programmable measuring pattern
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Calibrators/ Digital Manometers
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Meriam has earned the reputation as a world leader in the accuracy of our calibrators and digital manometers. We offer excellent hand held performance at a value price. Features include min/max capture, data record, pressure measurement, averaging and timed pressure tests. "Smart" digital manometers are well suited for field measurement and process control.
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Robot Calibration
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Achieve improved absolute robot positioning accuracy via dynamic robot calibration using API’s Laser Tracker and Active Target a self-orienting motorized 360° rotation SMR.
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Multifunction Calibrators
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Easy-to-use Multipurpose instruments for advanced documented calibration and process control.
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Product
Resistance Transmitter
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Knick Elektronische Messgeräte GmbH & Co. KG.
Transmitters for resistors and potentiometers in 6 mm housing with calibrated range selection. Functional safety up to SIL 2, SIL 3 redundant to parameterization via interface or intuitively, directly on the device. Universal use with 24 V DC or AC power supply.
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Transducer Calibration
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When it comes to finding the perfect transducer calibration system, look no further than MB Dynamics. Our Calibration Systems offer an extensive range, from the Win475-Basic, the trusted calibration solution for the United States Air Force; to the first of its kind Win475-TS, which measures a transducer’s transverse sensitivity. No matter what your needs, you’ll find the calibration equipment that works for you.
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Product
Standard Voltage 9 Pin D-Type Cables - Calibration Cables for Pickering Products
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The cable assemblies below are suitable for use with Pickering precision resistor cards and modules that utilize 9-pin D-type calibration port connector.
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Product
3D inversion geophysical software for Resistivity and Induced Polarization Data
RES3DINV
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This program is designed to invert data collected with a rectangular grid of electrodes. The arrays supported include the pole-pole, pole-dipole, inline dipole-dipole, equatorial dipole-dipole and Wenner-Schlumberger. The RES3DINV program uses the smoothness-constrained least-squares inversion technique to produce a 3D model of the subsurface from the apparent resistivity data alone.
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Winding Resistance Meter 100Amps, 2 Channels
WR100-12R
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Raytech Digital Winding Resistance meter WR100-12R is the enhanced version winding resistance system with a most advanced demagnetizing circuit as a rack version. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
