Resistive Load Banks
Check power source's ability to deliver a given current and voltage at unity power factors.
See Also: Load Banks, AC Load Banks, DC Load Banks, Inductive Load Banks, Reactive Load Banks
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Product
4-Probe Resistivity and Resistance Tester
HS-MPRT-5
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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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Product
48V / 250 Amp Load
BD15-48P
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For Battery Discharge testing and Power Supply testing. This particular Load has been designed to operate with 48V and 50V, (24 or 25 cells at 2V each), battery systems and is extremely cost effective.
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Product
Ground Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
1.Soil resistivity tester supports 2, 3 and 4wire grounding resistance measurement. 2. 4digit large LCD display with white screen backlight, suitable for use in dimly lit places. 3. IP65 protection grade, good waterproof, compact and portable, supports multiple functional tests.
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Product
Load Banks
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The only way to be certain that your stationary batteries will perform to specification is to test the batteries’ capacity with a DC load bank / portable battery discharge tester.
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Product
RF Waveguide Load
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RF Lambda’s waveguide loads are used at end of an RF signal chain to provide a good 50ohm match and dissipate any RF energy into heat. They are available in a variety of power levels and offer low VSWR.
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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
4kW Electronic Load
PT04-110
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For Telecom Rectifier and Power Supply testing. This model has been developed to accommodate testing of both 110V and 48V telecommunications power systems or Power Supplies. It is also useful as a general-purpose variable Load. Its founding principle is simplicity – ease of use, enhanced reliability, greater value for money and wider applicability.
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Product
Transformer Winding Resistance Meters
RMO TT Series
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The Tap Changer Analyzer & Winding Ohmmeter of the RMO-TT series is designed for winding resistance measurement of inductive objects, and for a tap changer analysis. The RMO-TT series is based on the state of the art technology, using the most advanced switch mode technology available today. The RMO-TT instruments are accurate (0,1%), powerful (up to 100 A) and still portable. The Instruments generate a true DC ripple free current with automatically regulated measurement and discharging circuit. RMO-TT instruments can perform a simple, quick and reliable transformer on-load tap changer condition assessment. This series of instruments enable measurements of a winding resistance in every tap position, current ripple values (percentage of a current drop during a tap change) and transition times during the tap changes. Problems with a connection, contacts, and selector/diverter switch operation (tap change with interruption) can be detected with these measurements.
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Product
Power Load Switches
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Low-resistance power load switches offer reliable overcurrent and thermal protection. They are designed for general-purpose power protection or for applications such as USB, hot-swap and power distribution. The power switches come in 1- or 2-channel versions with fixed and adjustable overcurrent limit. Some include a USB charge controller specifically designed to optimize USB host applications.
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Product
Handheld Contact Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
The hand-held Circuit resistance tester is an innovative product. The product is compact, hand-held operation, battery power supply, easy to carry. The product is mainly used in the measurement of contact resistance and other micro-Euclidean resistance of switch contacts. The test speed is fast and the accuracy is high.
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Product
Electronic Loads
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high performance electronic load is the successor to the highly respected PLZ-4W series, whilst still retaining the same high specification and build quality. Advances include a high visibility color display, low voltage operation from a minimum of 1 V to a maximum of 150 V. Programmable profiles of voltage/current can be applied (using the new ARB function, as used in LED/solar testing) in addition to the inherited 6 modes of operation: Constant Current, Constant Resistance, Constant Voltage, Constant Power, Constant Current + Constant Voltage, Constant Resistance + Constant Voltage.
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Product
48V / 300 Amp Load
BD18-48P
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For Battery Discharge testing and Power Supply testing. This particular Load has been designed to operate with 48V and 50V, (24 or 25 cells at 2V each), battery systems and is extremely cost effective.
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Product
Dummy Load
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Dummy load is capable of dissipating four times the legal limit 6 kW for 2 minutes and legal limit 1500 watts key down, forever. It covers the 160 meter to 6 meter bands (actually 1 Mhz-60 MHz continuously). It is a dry dummy load intended for testing amplifiers and station conditions. Two fans on the rear of the unit are automatically turned on when the internal temperature reaches 120°F/49°C . The unit runs off a universal AC supply. Simple to operate and use, the dummy load includes an RF sample output of -60 dBc.
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Product
PXI 1 Bank of 160 Channel 1 Pole MUX
40-615-022-1/160/1
Multiplexer Module
High density multiplexer modules featuring a wide range of switching configurations, especially useful where a large number of small multiplexers are required. Typical applications include signal routing in ATE and data acquisition systems. Each module is factory configured into one of the configuration modes. Connections are made via a front panel 200-pin connector.
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Product
Load Cells
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The heart of each weighing system is a load cell. Load cells are mechanical components which act as force sensors by employing strain gages to provide an electrical output proportional to the applied force. Typically the electrical output is either analog (voltage or current) or digital. Load cells have specific mechanical packaging and sensing orientation to fit into electronic scales, and testing and monitoring systems. Load cells can be used for tension, compression, and/or shear measurement.
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Product
Load Cell Measurement
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Designed specifically as a single-board solution for material testing system (MTS) applications, the PCI-9524 combines a high 24-bit resolution with 1/200,000 count accuracy to provide the most precise load cell measurement PCI board available in the market today.
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Product
Digital Earth Resistance Tester
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Wuhan Fanke Transformer Manufacture Co., LTD
Digital Earth Resistance Tester
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Product
Super Silicon Resistivity and Type Tester
HS-3FC II
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Super Silicon Resistivity and Type Tester is specially designed for silicon sorting，it can quickly test the silicon type, heavy-doped, resistivity and current, and can be widely used in all kinds of silicon sorting, like granular polysilicon material, break semiconduct silicon wafer, chunk material, top and tail material and so on. Furthermore, it integrates two probes, three probes and four probes. With the three probes, it could show type and heavy type simultaneously, strongly improved the sorting efficiency.
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Product
S-Type Load Cells
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S-Type Load Cells take their name from their shape – as you can see from the images below – they are in the shape of the letter “S”. These load cells are commonly used in tension applications; mechanical-to-electrical scale conversions as well as weighing applications including cranes etc.
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Product
PXI 8 Bank 8 Channel 2 Pole Multiplexer
40-659-102
Multiplexer Module
Model 40-659 is an 8 Bank 8 Channel Multiplexer module with 2-pole switching, It uses high quality electromechanical relays and is suitable for switching signals up to 2Amp, 300VDC/250VAC.The 40-659 module is suitable for multiplexer applications where two signals are required to be switched simultaneously, for example send and return signals in a telecoms system. It is also suitable for applications where reed relay based multiplexers do not have sufficient power handling capability such as switching medium power AC or DC loads or for slaving external relays, contactors and solenoids.
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Product
Large Compressive Load Cell
CCLG-3.0
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DLM’s range of Large Compressive load cells can be used independently or in combination as part of weighing platforms.
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Product
Resistance & Resistivity Probes
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Surface and/or volume resistance measurements are key parameters in describing materials' electrical properties. ETS offers a variety of probes to support numerous industry requirements and applications.
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Product
Custom Load Banks
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Power House Manufacturing, Inc.
Custom Load Banks are our specialty. Power House Manufacturing is dedicated to providing our customers with exactly what they need. Having years of custom load bank manufacturing experience, Power House can deliver the perfect custom testing solution you require.
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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
Load Cell Measurement Interface
LCIC-1106a
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Industrial Measurement Systems Ltd.
Any application related to weighing or measuring forces is now available in your PC...Stand-alone microcomputer-based interface card requires no other interfacing accessories. Simply connect th
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Product
Mini Load Column Load Cell Compression Only with Mounting
MLC SERIES
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The MLC Series is our miniature high capacity compression only load cell/force sensor, featuring low profile compact size for a wide range of portable and dedicated applications up to 30,000 lb The load diameter is slightly convex for accurate load distribution. Low deflection through design results in ultra fast frequency response. The MLCs are designed to be mounted in a shallow machined flat pocket or smooth flat surface, either free or fastened via a bottom 6-32 tapped hole. These load cells are manufactured from heat treated 17-4 ph stainless steel. The sensing element incorporates bonded foil strain gages of the highest quality and are sealed for protection against most industrial Environments.
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Product
S Beam Load Cell
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Futek Advanced Sensor Technology, Inc.
FUTEK S Beam Load Cells (Tension/Compression) offer a compact design for a variety of applications. Available in standard and metric, the S Beam Load Cell series provides accuracy, compact design features, overload protection (select models), and a wide capacity range to choose from. S Beam Load Cells are also commonly known as Z Beam Load Cells or S Type Load Cells.
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Product
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
Electronic Store Of Resistances
PS8
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The module is intended for use as part of information measuring systems based on the VXI bus for software setting of resistance values with a given step along three independent channels.
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Product
Load Cells
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is a transducer that is used to create an electrical signal whose magnitude is directly proportional to the force being measured.
