Surface Resistance
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Product
Winding Resistance Meter 50Amps, 3 Channels Rack
WR50-13R
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Raytech Digital Winding Resistance meter WR50-13R 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.
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Product
Surface Contamination Monitors
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Small-sized devices for measuring the ambient dose equivalent rate and the ambient dose equivalent of X-ray and gamma radiation, as well as measuring the flux density of beta particles (AT6130).
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Product
19" Drawer with Writing Surface, Unshielded, 8.75"H x 20"D
DR-081920-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
Measurement Of Surface Tenison Using The Pendant Drop Method
SURFTENS PD
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Optik Elektronik Gerätetechnik GmbH
SURFTENS PD is an image processing software for measurement of surface tension of liquids by pendant drop method. By help of drop shape analysis the surface tension is calculated, using the form parameters of the pendant drop. SURFTENS PD is used in connection with OEG equipment, but also available as standalone solution for applications of customer.
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Product
Spatial Heterodyne Surface Chemical Agent Detector
SHSCAD
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Wide area, high areal coverage rate surface contaminant detection via LWIR reflectance spectroscopy employing eye safe broadband quantum cascade lasers (QCLs) and a high-speed spatial heterodyne spectrometer (SHS) in a handheld sensor package (~ 10,000 cm3, 10 lb).
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Product
Masks Respiratory Resistance Tester
WKS-1200
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WKS-1200 Masks Respiratory Resistance Tester applies to determining the inhalation resistance and exhalation resistance of respirators and mask protective products under specified conditions, and used for the relevant testing and inspection of ordinary mask products by the national labor protection equipment inspection agency or manufacturer.
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Product
Resistivity Imaging & Sounding System
Syscal Junior Switch
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The Syscal Junior is an all-purpose resistivity imaging and sounding system for environmental applications. The system can be supplied as a standard imaging system capable of recording two measurements simultaneously. The second recording channel significantly improves data acquisition time when the instrument is fitted with internal switching board for 24 (Switch-24) 48 (Switch-48) or 72 (Switch-72) electrodes for Electrical Resistivity Tomography (ERT).
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Product
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
Polysilicon Resistivity Tester
HS-POSRT
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HS-POSRT polysilicon resistivity tester is an advanced resistivity tester, it has features of wide resistivity measuring range, high testing accuracy, high stability, swift body and easy operation. It is a good friend to Siemens polysilicon material producer,SH4 polysilicon material producer, UMG polysilicon material poroducer and so on
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Product
Digital Surface Profile Gauge
NOVOTEST SP-1M
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Digital Surface Profile Gauge NOVOTEST SP-1M is designed for profile measuring on either flat or curved surfaces. Also it can be used for measurements of surface roughness (Rz), after abrasive blasting pre-painting work.
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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
Low Resistance Ohmmeters
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Some times know as Ducter testers, these are highly accurate, easy to operate instruments that measure resistance with resolution as fine as 0.1 micro-ohm. Digital micro-ohmeters and DLROs measure contact resistance of switch and circuit breakers, aircraft frame bonds, and rail and pipeline bonds just to name a few of the applications. Megger has models available for testing using test currents from 0.5 mA to 200 amps covering a multitude of applications that require precise low-resistance measurements.
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Product
Insulation Resistance Measurement
MD 5060x
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The Megabras MD-5060x is a smart, microprocessor-controlled, 5kV insulation tester and analyzer. Besides the conventional measurement of insulation resistances up to 5 TW, its advanced features allow to automatically measure both the Polarization Index and Dielectric Absorption Index, thus significantly simplifying testing of transformers.
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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
Winding Resistance Meter 15Amps, 2 Channels
WR14
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Raytech's Digital Winding Resistance meter WR14 is the battery powered version winding resistance system with a most advanced demagnetizing circuit. It is designed for high degree of accuracy measurement of very low resistance of any inductive loads.
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Product
Surface Mount Switches
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Dow-Key® Microwave offers PCB mounted, miniature electro-mechanical microwave switches. These switches are designed with an overall size of 0.75” x 0.75” x 0.58” and weight of 0.5 ounces for test and aerospace applications where small size, reduced weight, and less power consumption are critical.
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Product
Insulation Resistance Tester
WB2681A
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• Insulation test voltages: DC250V、DC500V、DC1000V • Range of open-circuit voltage: ±10% rated voltage • Testing time: 3~99 seconds or controlled manually
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Product
Electrical Resistivity Instrumentation
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The resistivity survey method is more than 100 years old and is one of the most commonly used geophysical exploration methods (Reynolds, 1997). It has been used to image targets from the millimeter scale to structures with dimensions of kilometers (Linderholm et al., 2008; Storz et al., 2000).
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Product
Ground Resistance Inspection Box
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AllWin Instrument Science and Technology Co., Ltd.
Check the ground resistance tester each time prior to start work everyday morning and do some relevant records.
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Product
DC Resistance and Current Measurement System
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DC Resistance and Current Measurement System including: 6622A Series Bridge, 6634A Temperature Stabilized Resistance Standards, 6664C Scanner(s), world’s most precise and stable 6623A Precision Current Source/Range Extender, Wired Equipment Rack, and Bridgeworks Software.
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Product
Winding Resistance Meter
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* Selectable four resistance ranges.* 4 1/2 digits LED display* High measurement Current (10A)* True four Technique elimanates lead resistance errors Systems* Fully protected against overloads* Proven design* Computer connectivity through RS 232
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Product
Decade Box, Calibrated, Resistance, 7, 1ohm to 11.11111Mohm, 1 %
72-7270 CAL
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The 72-7270 CAL from Tenma is a resistance decade box. It is ideal for service, prototype and experimental use. This useful tool may be set resistance value from 1 to 11,111,110 ohm in one ohm increments. The decade accuracy is ±1% resistors used throughout. It has weight of 320g/0.70lb and dimension 14.7cm × 11.7cm × 5.5cm (5.79" × 4.61" × 2.16"). It is typically used in general applications, troubleshooting, maintenance, education and vocational training, production line testing, radio and TV services, working standards, research design & develop, physics laboratory work.
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Product
Advanced Powder Resistance Kit
PRK-130
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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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Product
Earth and Resistivity Testers
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Earth tester offering selective earth, soil resistivity, earth coupling and continuity measurements
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Product
NMC Make 20kv Digital Insulation Resistance Tester
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NMC offers high quality automatic digital insulation resistance testers, range : 0-20kv/20teraohms.
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Product
Earth/Ground Resistance Tester
DE-5030
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Earth resistance range0~12 / 0~120 / 0~1200 Normal operation conditionsBattery voltagein range of "BATT.GOOD" Earth voltage measurementmax. AC 30V Output current3mA Response timewithin 1 sec. Insulation resistancemin. 100M / DC1000V between input terminals and case Withstand voltageAC3700V (50 / 60Hz) for 1 min. between input terminals and case Battery Check Battery1.5V x 4 Safety standardIEC 61010-1 CAT.III 300V IEC 61557, IEC61010-031
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Product
Micro-Ohmmeter and Loop Resistance Tester
LRT 6000
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LRT 6000: The right solution for impedance resistance measurement in compliance with all aircraft specifications on plane, helicopter, rocket, army vehicles for both production andmaintenance. It is a very easy-to-use and versatile instrument. Its ergonomics allow the user to use it either placed on the ground or across one's shoulder or chest. Awide back-lit LCDdisplay combinedwith an intuitive keyboard ensures simple and easy operation.
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Product
High Resolution Thickness & Surface Profiler for as-sawn Wafers
MX 70x
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The MX 70x series measure Thickness, Warp, Waviness, Roughness and are usable for nanotopography.
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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
K Thermocouple Surface Probe
TP746
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Surface thermocouple Type “K” probe. Tolerance according to IEC 60584-2 standard.
