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Ammeters
measure in amperes the magnitude of current.
See Also: Zero Resistance Ammeters, Nanoammeters, Picoammeters
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Relay Tester
LET-4000-R
Regulation and Measurement Module performs the regulation of the DC current and is made with a variable auto transformer (Variac) regulating a three phase DC current, with a power of 8KVA and a three phase transformer of 8KVA with 2V nominal power in the secondary windings. A built-in ammeter and a timer give the information of the current injected and the operation time of the relay under test.
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Current clamps
Precision ammeters determine the intensity of an electric circuit without interrupting the current flow.
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Digital DC Nano Ammeter
PGP Electronics Private Limited
PGP Electronics Digital DC nano Ammeter is a very versatile and general purpose equipment for the measurement of low DC current. It is a precision tool which provides a resolution of 100pA. This instrument finds application in all the electronic, electrical or physics laboratories wherever there is a need to measure the lower current range.
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Millivolt Drop Tester
The SCR ELEKTRONIKS Millivolt Drop Tester is an industry acclaimed product. MVDT has a specially built constant current source (current generator) up to 400A (depending on model) and a dedicated PLC to store test parameters (in automatic models), perform test procedure, make the millivolt drop & junction resistance measurements and store test results, that can be retrieved later or downloaded to PC. PC based TestWare can display the test results & export those to Office, HTML, Printer or PDF. The manual models consist of the constant current source, digital ammeter and a digital millivolt meter with 3 ranges.
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high voltage ammeter recorder
GF2018
Beijing GFUVE Electronics Co.,Ltd.
GF2018 is the newest version of the wireless primary current sensor. Rational design and 433M transmit technology makes the recording more stable and accuracy.
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DC Nanoammeter
NanoRanger
NanoRanger® is an accurate, 3.5 Digit, affordable, DC ammeter to measure very low currents. With automatic dynamic ranging (9 ranges across 8.5 decades), NanoRanger® measures from 800mA to 1nA, whilst offering a maximum resolution of 10pA.
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Relay Test Set
RNT-5A
This is a portable testing kit in one unit, suitable for testing protective relay, over current relay, earth fault relay, protective device, circuit breaker, tripping coils etc.The set is designed for both laboratory and field use. TECHNICAL FEATURES: INPUT : 230 Volts, single phase, 50Hz. AC. OUTPUTS : : 1) Current Output: a) 0- 1Amp. At 6/60Volts. (Continuous duty). b) 0- 5 Amps. At 6/60 Volts. (Continuous duty). c) 0- 10 Amps. At 6/60 Volts. (Continuous duty). d) 0- 20 Amps. At 6 Volts. (for30 min. duty). e) 0- 50 Amps. At 6Volts. (For 10 min. duty). f) 0-100 Amps. At 6 volts. (For10 min. duty). g) 0-200 Amps at 6Volts. (For 30 sec. duty). Current output is continuously variable and the output is taken out through a multi range C.T. The secondary is connected to an ammeter scaled in 0 to 100%. Output current range 1Amp. To 20Amps. Are selected by current range selector switch with common output terminals and for other three ranges three brass terminals are provided of proper ratting. 2) AC Voltage Output: Continuously variable 0 -230V AC. Capacity- 240VA (Max). OR DC Voltage Output: Continuously Variable 0-240V DC. Capacity-240VA.(max). One change over switch should be provided for selection of Volt. Meter for AC or DC voltage output & either AC or Dc voltage should be available at a time. 3) Time Measurement: 0-9.999Secs. & 0-99.99Secs. in two ranges. Accuracy: 1% CURRENT CIRCUIT: Loading transformer: Double winding loading transformer of suitable burden to provided corresponding current output specified before. One change over switch in current ckt. To be provided for voltage selection i.e. selection of 10volt. Or 50volt. Measuring CT: Multi ratio wound primary current transformer Ratio : 1-5-10-20-50-100-200A/5A. Variable auto transformer: For smooth variation of current output at various ranges selected. Tripping circuit: The current output will be cutoff incase of any overload for the range 200A or even if the relay under test actuated.
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Source Measure Units
NGU
Thanks to their extremely high accuracy and fast load recovery time, the R&S®NGU source measure units (SMU) are perfect for challenging applications. A special ammeter design is used to precisely measure current drains from nA to A in one pass – no need to make multiple measurement sweeps. The instruments’ short recovery times enable them to handle fast load changes that occur, for example, when mobile communications devices switch from sleep mode to transmit mode. With high speed data acquisition, every detail is detected down to 2 μs resolution.
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Clamp-on DC Meters
The Swain Meter™ Company manufactures portable clamp on DC ammeters that precisely measure the magnitude and direction of DC current flow on any conductor. Used both onshore and offshore, Swain DC clamp on amp meters accurately read current from 5mA to 200 Amps with a resolution of 1mA in the 0-2Amp range.
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IGBT Power Supply, 24 KW, Output 0 to 16 VDC, 1500 AMPS, P/N 6133C
IGBT Power Supply, 24 KW, P/N 6133CInput: 480 VAC, 3 PH, 60 HzOutput: 0 to 16 VDC, 1500 AmpsRipple does not degrade when the output voltage is reducedDigital remote with Voltmeter and Ammeter and potentiometers includedDimensions: 20.00”W x 20”H x 24.5”D.Estimated weight: 200 lbs.
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Transformer Rectifier Assemblies
Transformer rectifier assemblies are very useful in OEM applications when unregulated DC output is required. Input power can be single-phase or three phases. With single-phase input power, the output ripple is 50%. With three-phase input power, the output ripple is 5%. A 5% output ripple is a clear advantage. Hence, transformer rectifier assemblies with three-phase input power are more popular. Circuit breakers, fuses, voltmeters, and ammeters can be added per customer requirements. The assemblies can be an open frame or inside an indoor enclosure.
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Protable AC/DC Ammeter
ST-2000 A
Standard Electric Works Co., Ltd
● Principle : Moving coil type● Accuracy : ± 0.5% F.S.● Scale Length : Approx. 135mm(5-3/8”)● Weight : Approx. 1.7kg● Dimension :196(L) x 170(W) x 87(D)mm● Case Material : Bakelite with glass window
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Electromagnetic Ammeters And Voltmeters Fb-1, AC Electric Current, AC Voltage
ELECTROMAGNETIC DEVICES FOR MEASUREMENT OF ACTIVE VOLTAGE AND ACTIVE CURRENT.
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Battery Charger Meters
A range of ammeters and voltmeters with tough moving magnet or polarised moving iron movements designed for low cost indication of d.c. or rectified a.c.
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Calibration & Testing Unit for AC & DC Meters
Supreme Instrument Laboratories
Calibrator for calibration and testing of A.C. Milliammeters, Ammeters, Voltmeters, and D.C. Microammeters, Milliammeters, Ammeters, Millivoltmeters and Voltmeters having following technical specification
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Weld Testers
The Weld Tester is our most versatile electrochemical monitoring instrument. Housed in a substantial metal case with brushed anodised aluminium front panel and green military specification connectors this equipment looks functional and professional. The top row of connectors are exactly the same as provided on a Gill 12 whilst the bottom row are for the additional weld segments. Using the same Potentiostat, Galvanostat, Zero Resistance Ammeter with integrated Frequency Response Analyser and Sweep Generator as a Gill 12 allows all the tests supplied with the Gill 12 to be supplied with the Weld Tester.
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Primary Test Equipment
LET-400-RD
It allows to perform with sufficient power, all the primary current injections to test the proper function and wiring of all the elements that compose the protection and measuring section in a substation.The regulation system is based on a continuously variable autotransformer (Variac) that supplies to a power transformer that delivers the high current outputs and isolate the main supply from the load. A built-in ammeter and a timer gives the information about the current value and the operation time of the relay or breaker under test.
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Portable Electrical Measuring Instruments in ABS Body
Supreme Instrument Laboratories
General Specification for Portable Ammeters, Voltmeters, Milliammeters, millivoltmeters, Micro Ammeters, Single phase Wattmeters, power Factor Meters, Dynamometer type Voltmeters, Ammeters etc. Housed in superior grade of ABS body, unique design, very strong in construction, unbreakable and very high insulation.
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Step Up Transformer
MagD
SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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IGBT Power Supply, 0 to 16 VDC, 3000 AMPS, P/N 6134C
IGBT Power Supply, 48 KW, P/N 6134CInput: 480 VAC, 3 PH, 60 HzOutput: 0 to 16 VDC, 3000 AmpsRipple does not degrade when the output voltage is reducedDigital remote with Voltmeter and Ammeter and potentiometers includedDimensions: 20.00”W x 32”H x 24.5”D.Estimated weight: 300 lbs.
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Earth Contact Resistance Tester
SCR ELEKTRONIKS have developed an equipment namely Earth Contact Resistance Tester to test the appliance. To ensure the safety of operator it is essential that the Earth path (connection) should offer minimum impedance to by pass short circuit Current to Earth. This is ensured by measuring Resistance of the Earth path by passing heavy Current say 25 A. The Earth Contact Resistance Tester essentially comprises of a Variable Current source with digital Ammeter to measure the Current supplied. The Voltage drop across the Earth path is measured with a digital Voltmeter. Optionally for a particular Current (25 A) the meter can be calibrated in terms of Resistance. A timer is provided to switch off the Current after the Set Time.
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Switchboard Instrument Ammeter
ST-72
Standard Electric Works Co., Ltd
● Test Voltage : 2kV 50-60Hz● AC Ampere Over Load Scale：200%, 300%, 500%● Composition：Glass Window, ABS resin frame and case, Bakelite base● Color：Black case and frame, white scale plate and meter body● Pointer：Stick shape in black color● Pointer Length：38mm.
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High Voltage Power Supplies
High voltage SCR controlled power supplies require the following:Output voltage is high. Output current is generally Low.Voltmeter and ammeter display the output voltage and current under load.Potentiometers are used to adjust output voltage and limit output current from minimum to maximum.
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Helmholtz Coil
In the measurement of magnetic fields by means of Hall probes or measuring coils it is necessary to calibrate the instruments in a known magnetic field. Our standard field coil according to Helmholtzenables to production of a magnetic field calculable with high accuracy from the dimensions and the amperage. In series arrangement with an accurate ammeter field strengths of up to 800A/cm are produced. The dield room accessible both in axial and radial direction. Helmholtz coils with fluxmeters are also useful in testing of magnets. Helmholtz coils give repeatable results as against the search coils due to which the magnets can be compared with more accuracy for their total flux and in turn their quality. Field Generating and Field Detecting Helmholtz coils are designed as per user specifications.
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Trailer Light Tester with Ammeter
Checkmate 1200-A
An improved version of the Checkmate 1200, this reasonably-priced tester comes equipped with a 0-to-20-amp ammeter. It's capable of testing SAE trailers or RV's with electric brakes.
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LoadLooker Ammeter
Instead of you manipulating a hinged or clamp-type inductive pick-up, the patented LoadLooker electronically closes the loop for you. Its unique U-shape jaw senses the amperage present between its tines.
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Voltage, Current and Power Measurement
Educated Design & Development, Inc.
For measuring current, especially higher currents and quicker than series ammeters. These units are considered the finest available. All units are extremely rugged, reliable, and versatile.
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Transconductance Amplifier
1620A
The 1620A provides high accuracy current levels from dc to over 10 kHz for calibrating ammeters, current transformers and shunts. It also provides output current up to 100 Amperes and as such may also be used as a high accuracy power supply, and as a power source in welding and bonding applications.
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Magnetizing Power Supply
This is a magnetizing power supply which can be used even in areas (countries) with an unstable electricity supply.The accuracy of the repeating magnetizing voltage enhances our reputation for top-class quality in the industry.We confirm the peak value, the time of electrification, and the electrical current area by using an impulse meter (a highly accurate magnetizing ammeter) before we ship out the products.
