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Resistance Meters

measure opposition to electrical current.

See Also: Resistance, Resistivity, Resistance Standards, Resistance Test, Resistivity Meters


Showing results: 331 - 343 of 343 items found.

  • Battery Charger-Analyzer for small battery systems (up to 10A-Hr)

    24-400xg - JFM Engineering

    The 24-400XG is an instrument designed to charge, trickle charge and analyze (discharge) Nickel-Cadmium, Sealed Lead-Acid and other types of rechargeable batteries.With its multiple modes of operation of Constant Current Charge (dual and single rate), Constant Current & Float Charge, Constant Current & Peak Stop Charge, Automatic Discharge (analysis), Resistance Discharge (analysis) and Full Discharge (deep cycle), the 24-400XG can satisfy the requirements of most small (0 to 10 A-hr) rechargeable battery systems.The instrument features safety interlocks to protect the operator, the charger and the battery in the event of reversed polarity connection, short circuit, open circuit (no load) and Overvoltage conditions.Two large LED digital meters permit the simultaneous monitoring of voltage and current, while eight indicator lights inform of the status of the operation.

  • OTP-Based Test System

    LXinstruments GmbH

    Power electronics assemblies often cannot be tested using conventional technology for their electrical performance. Due to the adaptability of the instrumentation, the OTP concept offers an ideal platform even beyond the space requirements of several control cabinets. In order to achieve high test flexibility with different assemblies, the system was equipped with three-phase AC sources and AC loads as well as a precise three-phase power meter. DC sources and loads with different current and voltage ranges cover the test of frequent DUT operating parameters. Time-dependent voltage or current signals can be stimulated by an arbitrary generator with power amplifier. General measurements such as current, voltage, frequency, resistance can be carried out flexibly at various test points using the matrix concept. An oscilloscope with RF multiplexer is available for high-frequency measurements such as residual ripple, switching processes, etc.

  • Intelligent Battery Charger-Analyzer for Large Battery Systems

    SuperMasterCharger - JFM Engineering

    The SuperMasterCharger is an instrument designed to charge, trickle charge and analyze ( discharge ) Nickel-Cadmium, Sealed Lead-Acid and other types of rechargeable batteries. With its multiple modes of operation: Constant Current Charge ( dual and single rate ), Constant Current & Float Charge, Constant Current & Peak Stop Charge, Automatic Discharge ( analysis ), Resistance Discharge ( analysis ) and Full Discharge ( deep cycle ). The SuperMasterCharger can satisfy the requirements of most large ( 10 A-hr to 100 A-hr ) rechargeable battery systems. The instrument features safety interlocks to protect the operator, the charger and the battery in the event of reversed polarity connection, short circuit, open circuit ( no load ) and Over-voltage conditions. Two large LED digital meters permit the simultaneous monitoring of voltage and current, while eight indicator lights display the status of the operation.

  • Intelligent Battery Charger-Analyzer for Battery Systems

    SuperMini - JFM Engineering

    The SuperMini is an instrument designed to charge, trickle charge and analyze ( discharge ) Nickel-Cadmium, Sealed Lead-Acid and other types of rechargeable batteries. With its multiple modes of operation: Constant Current Charge ( dual and single rate ), Constant Current & Float Charge, Constant Current & Peak Stop Charge, Automatic Discharge ( analysis ), Resistance Discharge ( analysis ) and Full Discharge ( deep cycle ). The SuperMini can satisfy the requirements of most ( Up to 40 A-hr ) rechargeable battery systems. The instrument features safety interlocks to protect the operator, the charger and the battery in the event of reversed polarity connection, short circuit, open circuit ( no load ) and Over-voltage conditions. Two large LED digital meters permit the simultaneous monitoring of voltage and current, while eight indicator lights display the status of the operation.

  • 1000A True RMS AC/DC Clamp Meter with IR Thermometer

    Extech EX830 - Extech Instruments Corporation

    The EX830 clamp meter features a unique, built-in, non-contact Infrared thermometer with laser pointer to monitor temperature and locate hot spots on motors and electrical devices. A large 4000 count LCD display with bright back lighting allows you to see the reading in dim light. The ergonomically designed double-molded housing offers a better grip for one-hand operation. The 1.7" (43 mm) diameter jaw opening is large enough for conductors up to 750MCM. In addition to AC/DC current, it measures AC/DC voltage, resistance, temperature, capacitance, and frequency. It features: diode test, audible continuity beeper, min/max, data hold, auto power off, and a fast peak hold that captures inrush currents and transients. Comes complete with test leads, 9V battery, type K bead wire temperature probe (-4 to 482°F/-20 to 250°C) and a belt holster.

  • Precision Capacitance Meter

    TH2638C - Changzhou Tonghui Electronic Co., Ltd.

    TH2638 series is a new precision capacitance meter with higher test frequency. With small size and portable appearance, it is convenient for use on the shelves. With basic accuracy of ±0.07%, loss accuracy of 0.0005, test frequency up to 1MHz, 4.3-inch LCD screen, selectable Chinese-English operation interface, TH2638 series is easy to operate and provide fast and reliable test for ceramic capacitor production. Also, it can test all kinds of capacitors from low value to high value. The results of testing one capacitor for several times are quite stable and accurate, even for lower value capacitors. The tester is compatible with SCPI command set, and configured with manipulator and scanner interface, the scanner interface can scan the open/short/ load error calibration in each channel, 256 channels at most. In low frequency, there is signal level compensation function. When the impedance is very small, the internal resistance in signal source and test cable will cause the voltage on terminal of DUT lower than the set range, then this function will adjust the level to the set range.

  • Precision Capacitance Meter

    TH2638 - Changzhou Tonghui Electronic Co., Ltd.

    TH2638 series is a new precision capacitance meter with higher test frequency. With small size and portable appearance, it is convenient for use on the shelves. With basic accuracy of ±0.07%, loss accuracy of 0.0005, test frequency up to 1MHz, 4.3-inch LCD screen, selectable Chinese-English operation interface, TH2638 series is easy to operate and provide fast and reliable test for ceramic capacitor production. Also, it can test all kinds of capacitors from low value to high value. The results of testing one capacitor for several times are quite stable and accurate, even for lower value capacitors. The tester is compatible with SCPI command set, and configured with manipulator and scanner interface, the scanner interface can scan the open/short/ load error calibration in each channel, 256 channels at most. In low frequency, there is signal level compensation function. When the impedance is very small, the internal resistance in signal source and test cable will cause the voltage on terminal of DUT lower than the set range, then this function will adjust the level to the set range.

  • Precision Capacitance Meter

    TH2638B - Changzhou Tonghui Electronic Co., Ltd.

    TH2638 series is a new precision capacitance meter with higher test frequency. With small size and portable appearance, it is convenient for use on the shelves. With basic accuracy of ±0.07%, loss accuracy of 0.0005, test frequency up to 1MHz, 4.3-inch LCD screen, selectable Chinese-English operation interface, TH2638 series is easy to operate and provide fast and reliable test for ceramic capacitor production. Also, it can test all kinds of capacitors from low value to high value. The results of testing one capacitor for several times are quite stable and accurate, even for lower value capacitors. The tester is compatible with SCPI command set, and configured with manipulator and scanner interface, the scanner interface can scan the open/short/ load error calibration in each channel, 256 channels at most. In low frequency, there is signal level compensation function. When the impedance is very small, the internal resistance in signal source and test cable will cause the voltage on terminal of DUT lower than the set range, then this function will adjust the level to the set range.

  • Precision Capacitance Meter

    TH2638A - Changzhou Tonghui Electronic Co., Ltd.

    TH2638 series is a new precision capacitance meter with higher test frequency. With small size and portable appearance, it is convenient for use on the shelves. With basic accuracy of ±0.07%, loss accuracy of 0.0005, test frequency up to 1MHz, 4.3-inch LCD screen, selectable Chinese-English operation interface, TH2638 series is easy to operate and provide fast and reliable test for ceramic capacitor production. Also, it can test all kinds of capacitors from low value to high value. The results of testing one capacitor for several times are quite stable and accurate, even for lower value capacitors. The tester is compatible with SCPI command set, and configured with manipulator and scanner interface, the scanner interface can scan the open/short/ load error calibration in each channel, 256 channels at most. In low frequency, there is signal level compensation function. When the impedance is very small, the internal resistance in signal source and test cable will cause the voltage on terminal of DUT lower than the set range, then this function will adjust the level to the set range.

  • Thermitest

    THW-L2 - Thermtest Instruments

    Designed with speed and operational simplicity in mind, the Transient Hot Wire (THW-L2) Liquid Thermal Conductivity Meter is an advanced measurement system for direct determination of the thermal conductivity of liquids and pastes in accordance with ASTM D7896-19. In less than 2 seconds, a single measurement of small volumes of liquids and pastes can be accurately and precisely measured for thermal conductivity. Using a non-stationary measurement approach, the THW-L2 uses rapid test times to limit convective effects for samples with a wide range of viscosities. The THW sensor consists of a 60 mm heating wire that is fully inserted into an isothermal sample. A constant current source (q) is used to heat the sensor wire and the temperature rise is recorded by monitoring the change in electrical resistance of the wire. The slope (m) is determined from the plot of temperature rise vs. logarithm of time and is used in the calculation of thermal conductivity (λ). Liquid samples of high thermal conductivity will have a lower slope, while liquid samples with low thermal conductivity will have a higher slope.

  • Motor & Drive Troubleshooting Kit

    Extech MG302-MTK - Extech Instruments Corporation

    The Extech MG302-MTK Motor and Drive Troubleshooting Kit includes three compact tools for troubleshooting three phase motors and drives. The first tool in the kit is the MG302, a 13 Function Wireless True RMS Multimeter/Insulation Tester featuring 125 V, 250 V, 500 V, and 1000 V test voltages. It also features insulation resistance from 0.001 MOhm to 4000 MOhm, auto discharge of capacitive voltage, a lock power on function for hands free operation, data hold, min/max, relative mode, auto power off and more at a CAT IV 600 V safety rating. The second tool is the 480403 Motor Rotation and Three Phase Tester that features a double molded, durable housing and CAT III 600 V safety rating. The third tool in this kit is the MA435T 400 A True RMS AC/DC Clamp Meter with a built in non-contact voltage detector, 10 functions and a CAT III 600 V safety rating.

  • Phasing Voltmeter/Sensor (2 in 1)

    STB Electrical Test Equipment, Inc

    STB unit replaces 3 separate units manufactured by competitors - line phasing, capacitance phasing and line to ground Versatile, lightweight and easy to useEach portable meter has a single rangeMeter usage: Voltage detection and phasing at capacitance test points or voltage detection and phasing on bare energized conductors (overhead & underground)Probes can be separated to be used as a voltage sensor or capacitance sensorFive position selector switch used to select voltage sensing on capacitance tap or direct line and phasing on capacitance tap, direct line or a battery test positionNo exposed conducting terminals or meter circuitryLocking cable connector provides positive contactScale is large enough to be easily read 8'-10' when mounted on a suitable hot stickLine to ground voltage readings are accurate within 3% at full scaleMaximum operating temperature range -20°F to 165°F (-30°C to 75°C)25' coiled cable includedAccessoriesMODELDESCRIPTION50118-G-10Hot Sticks (full set - 6)10104-P-02Shepherd's Hook10104-P-03Probe Tip30142-P-01Shot Gun Adapter50111-P-01Regular Bushing Adapter10275-P-01Universal AdapterModelsMODELDESCRIPTIONWeight50101-G-07Phasing Voltmeter 9-36kV16 lbs.50101-G-08Phasing Voltmeter 9-36kV with Hot Sticks (full set - 6)21 lbs.Request QuoteOperating Instructions9-36kV Phasing VoltmeterProduct Summary/OptionsProvides safe and convenient testing means for paralleling 3-phase high voltage circuitsConsists of two resistance elements connected in series with an indicating meter in the series connectionTwo ranges, 9kV and 36kV, with a range selector switch mounted on the back of the meter housingSwitch is clearly marked for the range of the voltmeterTypical use: Line-to-ground voltage measurements and phase for paralelling operationsScale markings on the voltmeter have a minimum of divisions and the figures are large enough to be easily read 8'-10' away when mounted on a suitable hot stickInput impedance: Approximately 72 megohmsMaximum operating temperature range -20°F to 165°F (-30°C to 75°C)Ready to attach on hot stick10' cable, a proof tester, battery and shepherd’s hook and probe tip includedOperating InstructionsRequest QuoteOperating InstructionsModelsMODELDESCRIPTION50100-G-010-2kV DC Voltmeter 30’ cable, magnetic track adapter50100-G-020-1500kV DC Voltage Meter50100-G-030-1500kV DC Voltage Meter with Hot Sticks50100-G-04DC Voltmeter 1500kV DC w/Extension Probe and Ground Lead50100-G-050-1500V DC with Hot Sticks and Lighted Dial50100-G-060-1500 DC Voltage Meter with Lighted DialDC Voltmeter​Product Summary/OptionsLightweight, easy to use, hand-held meterHard wired unit Scaled 0-1500vDC, in 100 volt incrementsProvides a 2/3 full scale deflection when applied across 1000vDCMaximum current flow through instrument at 1000vDC is 0.05 milliampersNo polarity, sensitivity issuesMay be used to determine whether the third rail of a transit system is energizedInput impedance of approximately 24 megohmMaximum operating temperature range -20°F to 165°F (-30° C to 75°C) Request QuoteAC VoltmeterProduct Summary/OptionsTwo-position toggle switchPortable instrument for quickly and easily measuring AC voltages Locking cable connector provides positive, electrical contactResistive voltmeter - medium range voltage measurements in the fieldTypical use - measure voltage between ground and the line or bus connector20' ground lead includedInput impedance - approximately 36 meghomsMaximum operating temperature rangeAccuracy of +/- 3% full scaleShare to TwitterShare to FacebookShare to PrintShare to EmailMore AddThis Share options

  • DC Electronic Load

    Model - KM-mPD-501 - Kusam Electrical Industries Limited

    KM-mPD-501 DC electronic load mainly focuses on the testing of power circuit on PCB. KM-mPD-501 offers a solution for function test of Switch step up, Stepdown, Regulators and Driver IC . Engineer puts components, such as CPU, DSP, FPGA; etc on a PCB after the power circuit has been tested. It’s not complete to use a meter to measure the voltage. KM-mPD-501 offers engineer OVP, OCP and OPP functions that help engineer know the value of overload current . On the other hand, engineer can use a programmable DC power supply (mPP series) to offer external power and connect PCB’s output to KM-mPD-501. Then engineer can easily get output watt, figure out the efficiency of power circuit and check if inductances, capacitances and resistances perfectly work with the power circuit. KM-mPD-501 not only offers loading emulation of current but also provides OVP and OPP. User can use these functions to test solar power battery, rechargeable battery and motor driver. In school laboratory, KM-mPD-501 helps students do experiment on power circuit, linear circuit and driver circuit.

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