Contact Resistance
opposition to the flow of heat or electricity within a connection.
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Product
Contact Resistance Meter
PCRM200S
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The Motwane Manufacturing Company
The Motwane make Contact Resistance Meter (Model:PCRM200S) is a digital micro-ohmmeter, specially designed to measure extremely low resistance in micro ohm. The Instrument is based on Kelvin 4-wire connection method for measurement of low resistance.The Current injection is fixed at 100A & 200A. Test information like current injected with measured resistance & voltage drop is displayed with real time data on large LCD with backlit.This User friendly Instrument and it's accessories are housed in easy transportation case. Advanced Windows based software isprovided for data downloading, analysis and report generation. Internal memory of 199 records is provided for onsite data storage withDate & Time stamping & Recalling facility. Thermal printer is the additional feature provided to print the test results.
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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.
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Product
Contact Resistance Measurement System
CRMS
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The CRMS is a system designed to allow any user to measure the resistance of each set of relay contacts associated with the relay under test. The test system consists of a CONTACT RESISTANCE MEASUREMENT UNIT (CRMU), a MULTIPLE RELAY TEST RACK, as well as an interconnect CABLE ASSEMBLY. Either DC or AC energy to pick and drop relay coils under test for all contact measurements is supplied from the CRMU and easily interfaces with the Multiple Relay Test Rack. For additional and more thorough testing of relays an external relay tester can be interfaced to the Multiple Relay Test Rack to supply energy to the relay coil. It is recommended that the UTE Relay Tester With Timer/Counter (UTE Product # 15967-00) be utilized so the operator can take full advantage of the unique features it offers
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Product
Contact Resistance Meter
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The Motwane Manufacturing Company
High contact resistance values are a definite cause of the failure or less than optimal performance in a wide variety of electrical devices. Contact resistance testing is therefore most critical to measure the resistance of electrical connections in switching devices, circuit breakers, isolators, busbars, relays, joints, connectors, cables, and cable joints. The device helps to find destructive or corroded contacts and hence protects substation devices from damage.
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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
Contact Resistance Meter
CRM 100B+
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SCOPE introduces its next generation of hugely popular CRM series contact resistance meter, CRM100B+ in all new super light avatar, based on cutting edge ultra capacitor technology. CRM incorporates some state of the art hardware & smart software features making it a must have tool for testing & maintenance engineers.
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Product
Earth Contact Resistance Tester
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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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Product
Circuit Breaker Contact Resistance Meters
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Vanguard Instruments Company, Inc.
The Vanguard Auto-Ohm 10 is a 10-ampere battery powered micro-ohmmeter designed for low-resistance-measuring applications such as the measurement of resistance in circuit breaker contacts, bushing contact joints, and welding joints. The unit is powered by four 3400mAh, 3.7Vdc Li-Ion rechargeable batteries. With these high capacity batteries, up to 2,900 tests per charge (10A/2 second duration) can be performed in the field.
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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
Contact Resistance Meter
CRM 100C
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CRM 100C directly measures resistance values with DC current injection under live switchyard conditions.The CRM 100C is specially designed to reliably measure contact resistance of Circuit Breakers, Isolators, Bus Bar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards. It can also be used for testing cables, graphite bars etc.
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Product
Contact Resistance Test Sets
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When a high current passes through a pair of mechanically independent metallic contacts, the resistance must be as low as possible. An increase in resistance can lead to additional degradation, as I2R losses will cause local heating of the contact surfaces. Our range of micro-ohmmeters measure both steady state and dynamic low resistance values. With test currents up to 600A available, logging and trending are also available on some models. We ensure that our Contact Resistance tests sets are portable, making them suitable for field measurements. Our contact resistance testers’ portability makes them ideal for a vast range of resistance testing across the entire LV, MV HV and EHV spectrum.
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Product
Contact Resistance Meter
CRM 200B
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CRM 200B directly measures micro-ohm values at 100 Amps DC under live switchyard conditions.CRM 200B is specially designed to reliably measure contact resistance of circuit breakers, isolators, busbar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards upto 765 kV.
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Product
Contact Resistance Meter
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4.5 Digits LED display Range : 0 TO 1999.9 W to 199.99mW High Measurement Current : 100A DC max. True Four wire resistance measuring technique eliminates lead resistance errors inherent in 2 wire systems. Fully protected against overloads. Proven design
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Product
LXI Low Thermal EMF Matrix 1-pole 28x33
60-510-003
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The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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Product
LED Tester For Ultra High Power
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Electrical Testing: Forward：VF、DVF、VFD、IF、DIF Reverse：VZ、DVZ、IR、DIR AC：VAC、IAC、WAC、PFOptical Testing: can test LOP in cd/mcd/W/mW/lm... from different optical components Wavelength λp,λd,λc,hw,purity,(x,y),CCT,CRIFour-wire measurement and contact resistance in case of deviation. Auto polarity identification and preheat function.Compatible mechanical interface.Optional ESD static test system.
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Product
Milliohm Meters & Microhm Meters
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Shanghai Beha Electronics Co., Ltd.
Makes measurements by passing a constant current through the device under test (generally a conductor, contact or low resistance) and measuring the voltage across it. It has visual LED checks for excessive; potential lead resistance (RP) and current lead resistance (RC). Should the instrument become too warm, the temperature sensor will shut down the current (ISCOFF).
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Product
Semiconductor
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You can find Spring probes used for test process for production of semiconductor here. Spring probe is probe with spring inside and is also called Double-ended probe and Contact probe. It is assembled in IC socket and becomes electronic path, which vertically connects Semiconductor and PCB. By our excellent machining technique, we can provide spring probe with low contact resistance and long life. “MARATHON” series is our standard lineup of spring probe for testing semiconductor.
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Product
PXI-2586, 10-Channel, 12 A, SPST PXI Relay Module
778572-86
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10-Channel, 12 A, SPST PXI Relay Module—The PXI‑2586 is a general-purpose switch module that features independent single‑pole single‑throw (SPST) Form A armature relays. Each relay has low contact resistance and high isolation voltage. The PXI‑2586 is fully software programmable. It is rated for both high currents and high voltages, so it is ideal for switching power signals and loads in control applications and battery, power supply, and automotive testing.
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Product
Single 12x12 1-Pole High-Density PXI Matrix Module
40-520-102
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The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
LXI Low Thermal EMF Matrix 1-pole 44x33
60-510-021
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The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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Product
Single 32x2 1-Pole High-Density PXI Matrix Module
40-520-502
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The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
PXI Single 64x4 Matrix 2-Pole Switching
40-533A-022
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Typical applications include signal routing in Functional ATE and data acquisition systems. These PXI matrix modules are constructed using high reliability sputtered Ruthenium reed relays, offering >109 operations to give maximum switching confidence with long life and stable contact resistance.
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Product
Test System for Detecting Exact PCB Short Circuit Locations
QT25
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Qmax Test Technologies Pvt. Ltd.
QT25 employs a unique method to detect exact PCB shorts circuit locations and pin down the shorted components and tracks. It is designed in such a manner that it precisely detects exact short circuit locations across VCC - GND or a shorted component connected across a Bus or hair-line shorts between PCB tracks, Which is highly impossible to detect using conventional tools especially when they are connected parallel in circuit. It can also be used in measuring the contact resistance of switches and relays in its milli-ohm mode as a value add.
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Product
PXI Single 55x8 Matrix 1-Pole Switching
40-538-021
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The 40-538 ultra high density matrix module is configured as a Single 55x8 reed relay matrix with 1-pole switching. Typical applications include signal routing in Functional ATE and data acquisition systems. These PXI matrix modules are constructed using high reliability Sputtered Ruthenium Reed Relays, offering >10e8 operations to give maximum switching confidence with long life and stable contact resistance.
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Product
Instrument Transformer Calibrators
MRL 22
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Automatic measure of contact resistance. True 4 terminal measurement. μP operated, automatically saves results.
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Product
Dual 16x8 1-Pole High-Density PXI Matrix Module
40-520-205
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The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
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Product
Milliohm Meter
MO-100
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Diagnose potential failure with the MO-100, portable battery powered milliohm meter. Quickly check windings opens or shorts in motors, generators and transformers, wire-to-wire connection resistances, heating elements testing and contact resistance in critical electrical connections.
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Product
High Voltage SIL Reed RelaysFor Up To 3 Kilovolts
Series 104
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• SoftCenter™ construction• Highest quality instrumentation grade switches• Small size• Internal mu-metal magnetic screen• One or two switches in a single package• Form A (energize to make) or Form B (energize to break) configurations• Many benefits compared to industry standard relays. Learn more here >.• Dry and mercury wetted switches available• 5, 12 and 24 Volt coils are standard, with or without internal diode• 100% tested for dynamic contact resistance
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Product
Dynamic Micro Ohm Meter
PRIME 200
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It is the only micro ohm meter in the market that integrates both the contact resistance and the dynamic resistance measurement (DRM) for cost-efficient condition evaluation of contacts in SF6 and vacuum type circuit breakers; PRIME is a high current micro-ohmmeter that provides true pure DC with smart control up to 200 A, a wide measurement range with high power, dual ground testing process, thermal printer, touch display, pre-defined test modes and automatic reporting.
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Product
Single 24x6 1-Pole High-Density PXI Matrix Module
40-520-302
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The 40-520 family of high-density PXI matrices is available in 22 different configurations with up to 256 crosspoints. The choice of six bus widths (x16, x12, x8, x6, x4 and x2) enables competitively priced solutions using Pickering Electronics instrumentation quality reed relays. These relays offer very long life with good low-level switching performance and excellent contact resistance stability. Typical applications include signal routing in ATE and data acquisition systems.
