Resistance Standards
See Also: Resistance, Resistivity, Resistance Meters, Resistance Test
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Frequency Standards
Precision Test manufacturers a complete range of frequency standards. This includes rubidium and OXCO models either free running or controlled by an external reference (GPS, GLONASS, Galileo, 1pps, 5 MHz, 10 MHz, IRIG-B etc). Output frequencies typically 1 MHz, 5 MHz, 10 MHz, 10.23 MHz, 13 MHz, 100 MHz or bespoke frequency.
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Quantum Hall Resistance System
Measurements International Ltd.
Quantum Hall System, System Accuracy to < 0.003 ppm with CCC Model 6200A, System Accuracy to < 0.015 ppm with DCC Model 6020Q, 5 Tesla Standard System Magnet, Stable Controlled Sample Environment, Base Temperature < 3.6 K, Low Operating Costs, Direct Transfer to 100 Ω, 1 kΩ, 10 kΩ, and 100 Ω Standards, System Range 0.1 Ω to 100 kΩ, Graphene Device Values 1 kΩ, 10 kΩ, 12.9064037 kΩ and 100 kΩ, Triple Sample Device Mounting.
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Resistance Meter
MT8-4L
М-module МТ8-4Л is a mezzanine module designed to measure the resistance of resistive sensors using a four-wire measurement circuit in eight channels (eight-channel digitizer). М-module МТ8-4Л is installed on the carrier of mezzanines - module НМ-М and is connected to it via a local information highway. Up to four m-modules of various types can be installed on the NM-M module. The NM-M module, together with the m-modules installed on it, forms a VXI module of size C-1 and is used to create information measuring VXI systems.
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Insulation Resistance Testers
.Multi Test Voltage .Auto range .LCD background light .Data hold .INSULATION RESISTANCE TESTER
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PAL Standard Pattern Generator
PG315P
The MicroImage PG315 pattern generator is designed for simple size and geometry reference applications. The PG315 will overlay one of five standard patterns including a centered cross line, a centered cross hair, a centered target style symbol, a dot grid (cross dot) array, a hatch grid (crosshatch) array.
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DC Resistance Tester
ZLD-10
Shanghai Dean Electrical Co., Ltd
Executive standard: GB/T4074.5-2008/IEC60851-4; Inspection standard: JB/T4279.2-2008Used to measure conductor with nominal diameter ≥0.01～9.0mm or various round or flat copper and aluminum wires and other metal wires with DC current resistance of 100μΩ～99.99Ω;Combination of intelligent DC conductor resistance measuring meter and DC resistance test fixture with sample straightening function;Test range can be selected according to the resistance value of sample, and after clamping samples current resistance value would be displayed;Both potential fixture and current fixture are made of copper;The application of microcomputer control allows for full-automatic completion of test;LED will intuitively display measurement results;
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NTSC Standard Pattern Generator
PG315N
The MicroImage PG315 pattern generator is designed for simple size and geometry reference applications. The PG315 will overlay one of five standard patterns including a centered cross line, a centered cross hair, a centered target style symbol, a dot grid (cross dot) array, a hatch grid (crosshatch) array.
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AC Calibration Standard
1U647-001
The 1U647-001 is a low cost calibration standard used to determine if a 1U632-100 or a 1U663-100 DMU requires factory calibration. Its portability makes it ideal for field-testing. The standard generates signals that simulate the aircraft’s resolvers, rotary variable transformers (RVTs), and linear variable displacement transformers (LVDTs). The unit also generates a pulse width modulated (PWM) signal, and routes the output of an ARINC 429 source to the different DMU input channels. The calibration standard connects directly to the DMU and replaces the output signals of an active extender card. Discrete switch settings simplify testing. The unit is housed in a rugged aluminum case.
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Earth Resistance Meter
EM 4058
earth tester is a digital, microprocessor controlled instrument that allows to measure the earth resistance and ground resistivity (using Wenner´s method), as well as to detect parasitic voltages present in the ground. This instrument is suitable to measure earth systems in power substations, industries, distribution networks, etc., according to IEC 61557-5.
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Electronic Resistance Store
MEMS5
Mezzanine MEMS5 is designed to reproduce the values of resistance to direct current through five channels independent and galvanically isolated from each other and from the case.
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Advanced Powder Resistance Kit
PRK-130
The PRK-130 is an advanced kit that includes the PRF-930 Powder Resistance Fixture for measuring the bulk resistance of powder and granulated materials. Test material is placed in the cavity between the measurement plates. Once a measurement has been made in ohms, a fixture calculation, or correction factor, converts the resistance measurement to volume resistivity in ohm-cm.
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Transformer Winding Resistance Testers / TRT ? 2
TRT-2
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 0.02A to 2A DC, Digital display of resistance and test current.
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Standard Resistors for Temperature Measurement
Measurements International Ltd.
High Stability, Split Guard Circuit, Internal Temperature Sensor, Custom Values Available, Includes Calibration Data.
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Insulation Resistance Testers
Are designed to help prevent hazards such as electric shock and short-circuits caused when the insulation in electrical devices, parts, and equipment used in industrial plants, buildings, and other settings degrades over long periods of use.
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Zero Resistance Ammeters
Current sinks are electronic circuits which can sink electric power in a controlled manner, thus acting as controlled loads. Our current sinks are designed as four - quadrant current sinks which can feed and sink currents in both polarities (also disregarding the polarity of the resulting voltage).
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Earth Resistance Testers
Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster.
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ANSI Standard Burden Sets
Voltage and Current
Testing and calibrating instrument transformers often requires standard burdens of reliable accuracy and stability, and burdens that are immune to stray fields and harmonics. The burden sets described below have been carefully designed to meet these requirements.
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Standard & Top Paint Inspection Gauges
121/4
is a hand-held paint gauge that offers a quick, versatile method of coating examination and measurement in a portable, easy-to-use format.
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Transformer Resistance Testing
Weshine Electric Manufacturing Co., Ltd
Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime. If you fail to maintain your transformer with regular insulation resistance testing (as can be carried out by the WESHINE Transformer Ohmmeter (VS-3110 series) of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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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Reference Standard
Beijing GFUVE Electronics Co.,Ltd.
It has been designed for universal laboratory and test applications and is intended for checking and the calibration of reference standards for electrical power and energy.
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Insulation Resistance Tester
250-1000V
Wuhan Fanke Transformer Manufacture Co., LTD
Professional Insulation Resistance Tester, 250-1000V
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IEC60529 IPX1/2 Rain Resistance Tester
IPX12A-600
Shenzhen Chuangxin Instruments Co., Ltd.
The IEC60529 IPX1/2 Rain Resistance Tester is designed according to the <> of IEC60529 standard, GB7000.1 and GB4208-2008. IEC60529 IPX1/2 Rain Resistance Tester is mainly used to simulate the product under the condition of the rain climate to test the products’ physical properties.
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3 Wire (Analogue) Earth Resistance Tester
2705 ER
Standard Electric Works Co., Ltd
● High quality Taut Band movement.● Capable of measuring earth resistance and earth voltage.● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● The test leads are supplied as standard accessories for simplified two-wire measuring system.● Battery operated.● Battery check function.● Calibration performed with supplied test leads.
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Standard Gain Horn Pyramidal Horn Antenna
Elva’s SGPH series of standard gain horn antennas cover the frequency range of 18 to 220 GHz in ten waveguide bands. They can be issued with rectangular or circular waveguide. Lens technology significantly allows decreasing mechanical sizes of horns and correcting beam for the best performance. These horns are ideal solution for measurement gain of other antennas, short range radars and radiometers.
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4-Probe Resistivity and Resistance Tester
HS-MPRT-5
t used for measuring resistivity of silicon rods and wafers, and sheet resistance of diffused layers, epitaxial layers, LTO conductive films and conductive rubbers, etc.
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Electron Multiplication (EM) Standard Image Sensors
EM (Electron Multiplication) is a technology that uses on-chip gain in the charge domain to effectively eliminate read noise from an image sensor. This enables advanced ultra-low light applications that require extreme sensitivity at fast frame rates. Examples include life science applications such as single molecule detection, super resolution microscopy and spinning disk confocal microscopy along with physical science applications such as nanotechnology imaging, Bose Einstein condensates and soft X-ray spectroscopy, and astronomy applications such as adaptive optics and lucky imaging. The inclusion of an additional conventional output allows further flexibility for applications such as true 24 hour surveillance.
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Insulation Resistance Measurement
MI15KVe
The MI-15KVe High-Voltage insulation tester is a truly portable device that allows the measurement of insulation resistances using test voltages up to 15kV.
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Standard Gain Horn Antenna
ZLB7-600-700-1846
Standard Gain Horn Antenna, Frequency0.6~1GHz, Gain10dBi, Power 200W, WR1150, Flange FDP8, Linear polarization, N type Female connector
