Surface Resistivity
See Also: ESD, Ground Resistance
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Product
Earth Resistance Testers
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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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Product
Surface Water Absorption Tester
TF167
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TESTEX Testing Equipment Systems Ltd.
Specimens are placed at an angle on the base of the apparatus. After water flows down the surface of each specimen, the amount of water retained by each specimen is measured. Six specimens are tested, three on the face of the fabric and three on the back of the fabric. The six observations are averaged to determine the surface water absorption of the fabric.
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Product
Air and Water Permeability in Concrete Both At and Below the Surface
Poroscope
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Poroscope Plus measures the time it takes for air to flow into a known volume of a sealed, evacuated chamber in the concrete. While the vacuum reduces from -55 Kpa to -50 Kpa, a measure of air permeability is determined. For water permeability, Poroscope Plus uses the same chamber filled with water, and measures the total time in seconds for a volume of 0.01 ml of water to escape.
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Product
19" Drawer with Writing Surface, Unshielded, 3.5"H x 20"D
DR-031920-S
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Unshielded drawers with writing surface are constructed of 20 ga. CRS and are furnished with ball bearing chassis slides to provide smooth operation. Available for 19" and 24" rackmount in 20", 24" and 30" depths, with or without a keylock
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Product
Low On-state Resistance
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Is a low output capacitance solid state relay containing a GaAs LED on the light emitting side (input side) and MOS FETs on the output side. A small flat-lead package has been provided which realizes a reduction in mounting area of about 50% compared withthe PS78xx series. It is suitable for high-frequency signal control, due to its low C × R, low output capacitance, and low off-state leakage current.
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Product
Surface Comparators & Magnifier
127
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Designed for use with the Elcometer 127 illuminated magnifier, each surface comparator has a hole in the centre allowing for clear visual comparisons to be made.
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Product
Transformer Resistance Testing
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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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Product
Insulation Resistance Tester
250-1000V
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Wuhan Fanke Transformer Manufacture Co., LTD
Professional Insulation Resistance Tester, 250-1000V
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Product
Optical Tactile Surface Finish
1000Z
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The Adcole Model 1000-Z features both optical and tactile measuring heads to deliver high precision surface measurements of camshafts, crankshafts and turned parts. The non-contact interferometric probe greatly expands on the measurement capabilities from the diamond tipped contact probe of the standard Adcole 1000 gage, as the optical accessory can precisely measure surface finish of cam track groove sidewalls, cam track bottom grooves and more. Profilometers such as the 1000-Z quantify surface roughness and are relied on to maintain quality and identify potential problems in the manufacturing and coating process.
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Product
Lock/Eject DIP Collet Socket with Surface Mount Pins
EJECT-A-DIP
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Lock/Eject DIP Collet Sockets with Surface Mount Pins. Features: Aries Eject-A-Dip is a rugged, solderable socket with a unique ejector/latch for fast in-field board maintenance. The latch locks in the connector or device, making it ideal for high vibration environments. The latch, when used as an ejector, removes DIP packages without pin damage.
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Product
4 Channel Precision Resistance Simulator Card
DP-cPCI-2709
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DP-cPCI-2709 RTD Simulator is ideal for applications of Resistance Temperature Detector(RTD) simulation requiring high resolution and low value resistances . DP-cPCI-2709 is offered in two factory selectable configurations of 4 channels and 2 channels depending on the resistance range needed. The 4 channel configuration offers resistance ranging from 30Wto 75Win steps of 50 mWresolution. This is ideal for applications where low Ohmic simulation is required. Similarly, the 2 resolution.
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Product
Resistivity Test System
RMS-1000
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Accurate and powerful performance. - Possible to get much accurate resistivity value by taking 8 raw data. - Good to check ohmic contact by flowing forward and reverse current.2. We provide various sample mounting board and probe head and tips.3. We have an optional item which can measure in variable temperature. - Room Temperature ~ 300dC.
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Product
2-Way Resistive Power Dividers DC To 40 GHz
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Pulsar Microwave manufactures resistive dividers from DC to 40 GHz. They have a rated input power of one half watt maximum. VSWR of 1.5:1 or better maintained throughout band at all ports. Resistive dividers can be fitted with SMA male or female connectors and are available in three outline packages.
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Product
Non-contact Inline Resistivity Measurement Module
NC-110 (NC-110PV)
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*Possible to measure sheet resistance without contact by Max. 3 types of probes*Suitable for production line and tranceportation system*Connect to host PC by LAN to send measurement command and data
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Product
Surface Contamination Kit
138/2
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The Elcometer 138/2 Surface Contamination Kit provides the user with a means for testing invisible surface contaminants including:pHchloride ionsironsalts
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Product
Pocket Size Digital Multimeter, Resistance Measure, 3999 Count, Average, Auto Range, 3.75 Digit
72-10395
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Pocket sized multimeter which comes in a self-contained folding case. The meter measures AC/DC voltage, resistance, capacitance & frequency.
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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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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
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RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.
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Product
Yellowing Resistance Chamber
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Sataton Instruments Technology CO., Ltd
Yellowing resistance chamber also called as discoloration meter is the professional testing instrument for measurement of yellow resistance performance by simulating sunlight. It is a useful tool for testing the yellowing resistance property of light color materials or products such as white thermoplastic polyurethane elastomer shoe sole or light synthetic materials. The chamber can also be used for printing and packaging industry for deploying chemical dyes.
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Transformer Winding Resistance Meters
RMO TW Series
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The RMO-TW instrument can perform a simple, fast and reliable verification of a transformer on-load tap changer. This instrument allows measurements of a winding resistance at each tapping position of an on-load tap changer without discharging between tests. Problems with OLTC switching, such as interruption, can be detected with these measurements. The results are displayed on a backlit LCD screen.
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Product
4-Way Resistive Power Dividers DC To 27 GHz
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Pulsar Microwave manufactures resistive dividers from DC to 27 GHz. They have a rated input power of one half watt maximum. VSWR of 1.5:1 or better maintained throughout band at all ports. Resistive dividers can be fitted with SMA male or female connectors and are available in three outline packages.
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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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Product
Earth Resistance Soil Resistivity Tester 2 / 3 / 4 Wire
Model KM 1320
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Kusam Electrical Industries Limited
KM 1320 Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage. Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement, importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment, consistency of repeat testing, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth resistance, soil resistivity, earth voltage, AC voltage measurement.
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Product
Earth Resistance Meter
EM 4058
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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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Product
Resistance Temperature Detectors
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Sensors used to measure temperature by correlating the resistance of the RTD element with temperature.
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Large Range Resistivity Tester
HS-SFRT
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HS-SFRT silicon filament resistivity tester is an advanced silicon cylinder resistivity tester, which can measure silicon filament, silicon phosphorus ingot, silicon boron ingot, seed crystal and so on. As it eliminates Peltier effect, Seebeck effect, minority carrier inject effect and so on, So it improve the accuracy greatly. The testing resistivity ranges from 0.0005Ω·cm to 50000Ω·cm. It is accurate, stable and convenient and a good friend to Siemens polysilicon material producer, SH4 polysilicon material producer, UMG polysilicon material producer and so on.
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Product
Corona Resistant Tester of Enamelled Wire
DPT-1000S
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Shanghai Dean Electrical Co., Ltd
·The tester is comply with the requirements of standards GB/T 1707-2008, GB/T 24122-2009, GB14711-2013, meet the requirement of standard JB/T 10930-2010;·Multiple samples can be tested at same time;·Used for testing the feature of high frequency pulse resistance (performance of Corona-resistance).
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Product
Earth Ground Resistance Meter
1623-2
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The Fluke 1623-2 earth ground tester measures earth ground loop resistances using only clamps, only stakes, or one clamp and stakes. With the stakeless test method, the Fluke 1623-2 is able to measure earth ground loop resistances for multi-grounded systems using only current clamps.
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Product
Automatic Liquid Interface Tension Meter,Surface Tension Analyzer,Oil Interface Tension Meter
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Chongqing Assen Power Equipment Co., Ltd
Our HTID-1 Automatic Interface Tension Tester is used to test various liquid surface tension and interface tension based on the ring method that is simple and high accurate, which is widely applied in electric, petroleum, chemical, medicine, food, and teaching filed.
