Battery Internal Resistance
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Product
Intelligent Battery Charger-Analyzer for Battery Systems
SuperMini
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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.
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Product
Contact Resistance Meter
CRM 200B+
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CRM directly measures micro-ohm values at 200A DC under live EHV switchyard conditions quickly & accurately. It is specially designed to reliably measure micro-ohm contact resistances of Circuit Breakers, Isolators, Busbar joints, earth switch joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards up-to 765 kV. SCOPE’s ability to make electronics work in such environment enables CRM to measure mili-volts signal in the presence of kilo-volts noise.
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Product
Battery Impedance Meter
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Operation is fast and simple. Just press the spring-loaded probes onto the two poles of the battery. After 1.5 seconds, the unit beeps (indicating good contact) and displays the battery voltage and either the number of siemens or milliohms, depending on the knob setting. The display continues to show these numbers after the probes are removed; it resets only when the probes are pressed onto the next battery. The impedance and voltage of any battery between 1.2 and 60 volts can be read. Because of the wide range of voltages, even single low-voltage cells, such as NiMH, can be measured. The manufacturers of some batteries specify impedance in milliohms while other specify in siemens (one divided by the resistance in ohms). This meter will display both types of impedance for any given battery. Accuracy is +/- 2% of the value.
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Product
Resistance Meter
RM3542A
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High-speed resistance meter ideal for automated lines; compatible with super-small electronic components • Testing source: DC • Fastest measurement time: 0.9 ms • Minimum integration time: 0.1 ms • Finest resolution: 0.1 μΩ
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Product
Battery Chargers
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DC Battery ChargersStep-Up & Step-Down DC Source Chargers and Equalizers These units provide up to 600 watts to charge a 12V or 24 V battery systems (1 or 2 banks) from a 12, 24, 32 or 36 volt source. The single-board design incorporates state-of-the-art switch mode technology for unmatched efficiency and ultra-quiet operation. Multiple stages of filtering reduce radiated or conducted noise to very low levels. All Series are capable of charging up to two independent banks of batteries.
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Product
Resistive Load Banks
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Guangdong EMAX Electrical Co., Ltd.
Resistive load banks are an important tool for testing and verifying the performance of power systems such as generators, UPS systems and turbines. They simulate real-world electrical loads by dissipating power as heat through resistive elements.
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Product
Electronic Resistance Store
MEMS2-4L
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The mezzanine serves as an electronic store of resistance to direct current, the value of which is set by software, through two isolated channels.
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Product
Quantum Hall Resistance System
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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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Product
Battery Management Systems
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A BMS is the intelligent component monitoring and managing any lithium-ion battery pack. It is the brain behind the battery and has a key role in its levels of safety, performance, charge rates, and longevity.
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Product
Battery Charger/Discharger
BCD-3932T
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Kongter Test & Measurement Co., Limited
This battery charger/discharger/regenerator is compact unit for regular maintenance of single cell, especially for old cell. It plays three roles for complete solutions: charger, discharger and activator, which will facilitate your maintenance for batteries.
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Product
PXI Battery Simulator Module
41-750-001
Simulator
The 41-750 is a battery simulator module that can be used to simulate the power supplies of cellular phones and other portable battery devices. It features fully floating output terminals than can deliver voltages up to 6 Volts. The fast responding remote sense connections allow the module to regulate the supply voltage at the device under test.
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Product
Battery Chargers
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Our dedicated range of battery chargers support Ni-Cd, Ni-MH, Li-ion and lead acid chemistries. Industrial lead acid battery chargers with temperature compensation are available at a variety of voltage levels and output powers. The high conversion efficiencies result in a small case style making the BC-SMPS product family ideal for system integration.
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Product
Battery Analyzer
UBA5-30V
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The UBA5-30V can analyze up to 30V battery packs (33 for lithium ion or lithium polymer). It comes with a small power supply (120VAC or 220VAC input) that powers the UBA5's internal circuitry.
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Product
Differential TDR, 35 ps, 15 GHz, ESD, Sxy, OSLT 3.5MM Cal Kit, Aluminum Case, Internal Battery
T3SP15D-B-BUNDLE
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Differential TDR,35ps Rise Time, ESD protection,2 phase matched 3.5mm cables,3.5mm Cal. Kit, Battery.
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Product
Concrete Bulk Resistivity
RCON
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Giatec RCON™ is a non-destructive device for measuring the electrical resistivity of concrete specimens in the laboratory without any additional sample preparation requirements. This measurement can easily be made on the same concrete samples that are currently used for the compressive strength testing of concrete.
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Product
Sole Puncture Resistant Tester
UI-FT03-1
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Sole Puncture Resistant Tester is to test safety shoe sole steel plate insert nail puncture resistance/penetration ability.
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Product
Resistance Standards
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Ohm-Labs manufactures reference grade resistance standards from 10 micro-ohms to 10 teraohms. Each range of standards utilizes the latest advances in materials and processing for high stability and immunity from changes in ambient environment. All products are supplied with ISO17025 accredited calibration.
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Product
Computerized Battery Analyzer (CBA)
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The CBA is much more than a simple battery voltage tester or a battery load tester. Unlike a simple load tester the CBA will test virtually any type or size of battery, any chemistry, any number of cells up to 55V. For the first time and for a reasonable price, anyone can do scientific tests of their batteries by letting their computer do all the work. (more... About CBA)
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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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Product
Automatic Batteries with Filters with Thyristors
BATLVFS1000
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations.
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Product
Battery Discharge and Capacity Testers
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HD Power Test Equipment Co.ltd
HDFD Battery Discharge Tester can be used as the discharge load in the battery off-line state to realize the constant discharge at the set value by regulating continuously the discharge current. When discharging, the tester will automatically stop discharging when the voltage on the battery group terminal or the cell falls to the set lower limit value, or when the set discharging time is out, or when it reaches the set discharging capacity. Battery Discharge Tester can records all valuable and continuous real-time data during the discharge process.This tester system is simple, safe and accurate for monitoring voltage of cells adopting wireless connection.
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Product
Explosion Resistant Oven
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All standard Gruenberg Ovens can be modified to be explosion-resistant. Explosion-resistant ovens incorporate design features that allow the oven to be operated within a volatile atmosphere defined as Class I, Group D, or Class II, Group E, F or G. Ideal for heating and drying processes.
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Product
Battery Chargers
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Following a power outage, various power engineering objects such as power plants should operate on battery back-up systems. It is necessary that these batteries are being properly charged in order to compensate its energy loss and keep their voltage within the predefined limits. DV Power’s chargers are portable and universal battery charging solution. They are primarily intended for charging Lead-Acid, Ni-Cd and Li-ion batteries from 1 V DC to 300 V DC level.Charging modes provide a safe regulation of charging procedure and achieves fast recharge and low risk of overcharge. Variety of implemented protections, such as thermal, overcurrent, undervoltage and overvoltage, assure the charging process is safe for the battery and the charger itself.
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Product
Battery & Supercapacitor Test Series
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Next Generation Instrumental (Shanghai) T&C Tech. Co., Ltd.
NGI Battery & Supercapacitor Test Series
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Product
Battery Conductance Tester
SAT-AC
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Shaanxi Aitelong Technology Co., Ltd
SAT-AC Battery Conductance Tester is a multi-function and portable digital data storage measurement instrument to test battery running condition and parameters quickly and precisely. It can display and record many key parameters for multi-groups like battery string and each battery cell’s voltage, conductance, connecting strip resistance, battery’s internal resistance and so on; offer the ability to distinguish battery’s condition effectively and accurately; compose with intelligent PC measurement analyzing software, user can track battery’s decay trend, and alarm beforehand to help technician and administrators process according to status.
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Product
DC Air Based Resistance
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DC Air Based Resistance Standards are designed for high accuracy resistance calibration in air.
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Product
Advanced Battery Tester
DBT-12+
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The tester enables safe measurement of voltage, current rating, state of charge and state of health for 12V and 6V batteries. The device is powered by an internal battery, so it can test even discharged batteries and can be conveniently used as a voltmeter.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
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RMO-TT series is perfect for measuring winding resistance of inductive objects such as power and distribution transformers or autotransformers. Additionally, every transformer resistance meter from RMO-TT series can analyze:tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.Transformer demagnetization can also be performed with all RMO-TT instruments.The series is consisted of 3 models, with maximal test current from 40 A (RMO40TT) to 100 A (RMO100TT). RMO100TT is the only portable transformer resistance meter in the market with 100 A DC output current.The three independent channels enable testing of three windings in series. Consequently, a user can measure winding resistance in every tap position of an on-load tap changer without discharging between the tests.In addition to winding resistance measurement, a user can perform a detailed on-load tap changer analysis by analyzing recorded graphs (10 kHz sampling rate) and by measuring vibrations on an external tap changer tank.All RMO-TT instruments have a built-in tap changer control unit. Because of this, it is possible to remotely control on-load tap changer (OLTC) directly from the device. Also, a user can program DV-Win software to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also 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.All results can be exported in the report format.
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Product
Contact Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
The loop resistance tester is used to test the conductive loop resistance of various switchgear, and the test current shall not be less than 100A. Due to the oxidation of the contact surface, poor contact tightening and other reasons, the contact resistance increases. When a large current flows, the temperature of the contact point increases, which further accelerates the oxidation of the contact surface and further increases the contact resistance.
