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Handheld Grounding Tester
HGT1
The HGT1 is a handheld meter to measure ground impedance as well as step and touch voltages. Using the CPC 100 and CP CU1, test currents at variable frequencies can be fed into power cables or overhead lines safely to simulate a ground fault.
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LXI RF & Microwave Matrices
Each of our RF & Microwave matrices is designed to have a controlled transmission line impedance and architecture developed to maximize the bandwidth of the product. The RF matrices are designed with crosspoint switch systems interlinked with isolation relays and loop-thru connections to minimize stub loading of the matrix. The mechanical and electrical freedom of LXI allows us to design RF and Microwave matrices to suit most applications.
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Data Diver
MT-8006B
LCD display for dialing number, Caller ID, Clock and other informationIndicator for determining the Line service and speedHigh impedance monitor for data safe operation without disrupting existing traffic.Smart power saving enables battery life up to 6 months12 phone number memory for speed dialing16 dialing number memoriesTone (DTMF) and pulse operationUp to 32 digits phone number memory for speed dialing keyPre-dialing and last number redial functionPBX pause key, insert a PBX pause in stored numbersTelephone line polarity indicatorsLow battery indicationBacklight functionRJ-11 port for easy test leads changeRinger and voltage LED indicationAngled bed of nails and RJ-11 plug
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Test Fixture, Shielding Effectiveness
EM-2108 | 1.5 GHz – 10 GHz
The EM-2108 is a standard test fixture for evaluation of the electromagnetic shielding effectiveness (SE) of planar materials. The fixture is a section of coaxial transmission line broken to allow the insertion of planar test materials. Although ASTM D4935-10 is currently limited to an upper frequency of 1.5 GHz, the EM-2108 meets and complies fully with both the impedance and SE requirements called out in ASTM test method D4935-10 up to 10 GHz. These results are shown in Figures 1 & 2. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred.
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Fault Locating
Schweitzer Engineering Laboratories, Inc.
The built-in fault-locating methods in SEL devices allow you to quickly identify faults, dispatch crews for repairs, and restore service faster. Traveling-wave fault-locating technology calculates the locations of temporary and permanent faults by measuring the arrival times of the naturally occurring traveling waves caused by a transmission line fault. Accurately detecting these waves requires ultra-high-resolution monitoring, and locating is accurate to within one tower span (±300 m). Impedance-based fault-locating technology calculates fault locations by detecting changes in line impedance as a result of a fault. Impedance-based locating is reliable and accurate to about 2 percent of a line’s total length.
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Impedance Measurement
CITS880s
Finer geometries and thinner copper can present a challenge for fabricators measuring impedance on leading edge PCBs. The CITS880s answers that challenge with the introduction of Launch Point Extrapolation (LPE). LPE extrapolates the TDR response back to a point close to the start of the transmission line effectively allowing to users more accurately to measure the instantaneous or incident impedance of the line.
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Test Set
TS® 19
The Fluke Networks TS19 Test Set combines all the essential test set features at an affordable price. This test set was specifically designed for in-house telecom technicians. Its high impedance monitor prevents accidental disruption of service from clipping onto a data line while in monitor mode, thus ensuring the integrity of critical data lines.
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Common Mode Chokes
Common Mode Chokes, as the name implies, are designed to attenuate and filter common mode noise within an electric system. The key parameters for a common mode choke are the current rating (to ensure the part does not overheat within the application), the impedance versus frequency (to ensure it is optimized to attenuate the desired frequencies), the isolation voltage (to ensure it meets board level requirements between the line and neutral phases) and safety isolation (to ensure it meets the safety requirements of the end-application). It is important to remember that common mode chokes cannot saturate in the application (under normal use) as they are designed to ensure that the line and return currents are balanced.
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Balanced Measurements
The unbalanced interface of a VNA is not very well suited for measuring balanced circuits like antennas, transmission lines or chip impedances. In fact it is nearly impossible to get a decent calibration on a balanced 2-port measurement using coax cables.
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200KHz / 10000Freq.Point LCR Meter
MCH-2816A
It has high test frequency of 300kHz and 0.01Hz stepping arbitrary programming, and it has 10mV-2V signal level, all making it meet the precision test requirements of production line quality control, in-coming inspection and lab. Its HANDLER, RS232c interfaces are used for the component automatic sorting system, which provides the conditions for computer telecommunication and test recording. Flexible frequency-response analysis:Due to non-ideal inductor, capacitor and resistor, in order to precisely evaluate the characteristics of one component in one frequency band, MCH2816 could use its signal generation ability with 10mHz resolution to correctly analyze frequency response of the component parameters in any frequency band. In particular, it can do the precise measuring of the resonant impedance of the low-frequency ceramic resonant devices which has wide impedance range.
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Voltage Probes
In addition to EMI measurement with LISNs (Line Impedance Stabilisation Networks, Artificial Mains Networks), Probes are used for Terminal or Line voltage measurement.
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Digital Electrical Network Analyzer
2726 NA
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Built-in earth tester.● Built-in loop/psc tester. 0.03-2000Ω (software ctrl).● Built-in voltmeter.● Built-in wiring checker.● One push button smart control.● Display L-N and L-E voltages. 50 to 280Vac (sine).● Display line path impedance. 0.01-2000Ω (software ctrl).● Display earth path impedance. 0.01-2000Ω (software ctrl).● Display neutral path impedance. 0.01-2000Ω (software ctrl).● Display psc line to neutral. 6kA@230Vac supply.● Display psc line to earth. 6kA@230Vac supply.● Re-scroll through previous results.● Bat. ok/low battery indicator.● Auto-off function.● Color coded test leads.● Rugged Case.● Ultra low power consumption.
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Transmission Line Probes
Transmission line probes are a special type of passive probe designed for use at very high frequencies. They replace the high impedance probe cable found in a traditional passive probe with a precision transmission line, with a characteristic impedance that matches the oscilloscope input (50 Ohm). This greatly reduces the input capacitance to a fraction of a picofarad, minimizing the loading of high frequency signals. A matching network at the tip increases the DC input resistance. While they have lower DC input resistance than a traditional passive probe (usually 500 Ohm) to 1kOhm), the input impedance of these probes remains nearly constant over their entire frequency range. A traditional /10 passive probe will have a 10 MOhm) input impedance at DC, however this impedance drops rapidly with frequency, passing below the input impedance of a transmission line probe at less than 100 MHz.
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100Hz-50kHz LCR Meter –
11021/11021-L
Chroma Systems Solutions, Inc.
The Chroma 11021/11021-L are the most cost-effective digital LCR Meters available, providing 100Hz, 120Hz, 1kHz, and 10kHz test frequencies for the 11021 and 1kHz, 10kHz, 40kHz, 50kHz test frequencies for the 11021-L. The standard RS232 interface, optional GPIB & Handler interfaces, high speed and stable measurement capabilities enable the Chroma 11021/11021-L for use in both component evaluation on the production line and fundamental impedance testing for bench-top applications.
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Precision Impedance Analyzer (20Hz to 10MHz)
ST2839
ST2839 series precision impedance analyzer is a new generation impedance test instrument by adopting the current international advanced automatic balance bridge principle. Its basic accuracy of 0.05%, the fastest test speed of 5.6ms, the frequency range of 20Hz-10MHz, and the impedance test range of up to 1GΩ can meet the testing requirements of components and materials, especially for low-loss (D) capacitors and high-quality Measurement of Factor (Q) Inductors. The four-terminal pair port configuration method can effectively eliminate the influence of the electromagnetic coupling of the test line, and expand the lower limit of the low-impedance test capability ten times lower than that of the conventional five-terminal configuration instrument.
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Micro probes 1 MHz up to 6 GHz
MFA 01 set
The micro probes are used to measure magnetic fields and they have a high resolution. They measure magnetic fields up to 6 GHz, e.g. at signal conductors (150µm), SMD components (0603-0201) or IC pins. The MFA micro probes are guided by hand. An amplifier stage is integrated into the probe head. The amplifier stage (9V, 100mA) is powered via the Bias tee BT 706. It has an impedance of 50 Ohm. The micro probes are connected via the Bias tee BT 706 to a spectrum analyzer or an oscilloscope. Langer EMV-Technik GmbH includes correction lines in the delivery. With the help of the correction lines the probe output voltage is converted either into the respective magnetic field or to the current which is running through the conductor.
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RF Terminators
Typically placed at the end of a transmission line and is designed to match the cable's AC impedance.
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Test Phone - Contractor (3-way Lead)
CZ20018
The CZ20018 is the basic workhorse level buttinski with all the features required for most phone line testing. Further, the CZ20018 comes equipped with a multi-way lead set as standard meaning connection to Krone and RJ sockets are automatic. A high impedance monitor mode protects interruption to ADSL when monitoring the line.
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Low Power Programmable AC Power Source With Transients
Chroma Systems Solutions, Inc.
Equipped with a host of powerful features: power line disturbance (PLD) simulation, programmable output impedance, comprehensive measurement functions, waveshape synthesis and regulation test software
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Multifunction Installation Testers
Shanghai Beha Electronics Co., Ltd.
Loop impedance and prospective short circuit current measurement• Line impedance and prospective short circuit current measurement• Earth loop resistance in TT-systems• Rotary field test• RCD measurements (contact voltage, trip time, trip current - ramp method)• RCD analysis for test of all RCD parameters • Low Ohm and continuity measurement • Insulation measurement up to 1000V (suitable for 690 V industrial mains systems)• Earth resistance measurement with probes and clamp adapters• Voltage and frequency measurement • Current measurement with clamp adapters(optional)• Power and energy measurements• Harmonics measurement for voltage and current upto the 21st harmonics
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Performance Board For LSI Tester
Place inner layer GND plane all over. Impedance control of signal line and crosstalk prevention, etc. contribute to improvement of characteristics in various ways.
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5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
The TBOH01 5H LISN is a device required to setup conducted noise measurements of DC-powered devices. It is designed to be used for EMC pre-testing in the frequency range of 150kHz to 110 MHz.
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Model Vector Network Analyzer
DZV-1
Digital Signal Technology, Inc.
DZV-1 is the vector network analyzer which can be measured the impedance and VSWR of the antenna, S Parameter of RF component and devices. It is small and low-priced. So, it is suitable for the production line, laboratory use, various testing applications, and the educational use. The communication between the DZV-1 unit and PC is done via USB, which is also used for power supply. The LOG-MAG characteristic, the phase-characteristic, the group delay frequency characteristics, the Smith chart, the polar coordinates, the SWR characteristic can be displayed on PC.
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Loop / PFC Testers
PeakTech Prüf- und Messtechnik GmbH
The PeakTech 2715 is a loop tester which is used to test the safety of electrical systems. These device measures the impedance of the short-circuit loop between the outer conductors of a circuit, whereby the probable short-circuit current is calculated. The protection of the circuit (miniature circuit breaker) must therefore trigger at a lower current than the expected short-circuit current, in order to avoid excessive heating of the lines and thus a fire risk. The PeakTech 2715 is due to its function and its robust design almost indispensable when performing new installations, but also for general checking of electrical systems, this device is the ideal companion.
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Plus Precision LCR Meter
7600
The 7600 Plus LCR Meter performs precision impedance measurements over a frequency range of 10 Hz to 2 MHz. The LCR Meter can measure 14 different impedance parameters with 0.05% accuracy, meeting today's requirements for component and material testing. The ease of use and user-friendly menu programming makes the 7600 Plus ideal for applications in product development, incoming inspections, or production line testing.
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OTDR
Shenzhen Sharingtek Communication Co., LTD
Is an optoelectronic instrument used to characterize an optical fiber. It is the optical equivalent of an electronic time domain reflectometer which measures the impedance of the cable or transmission line under test.
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Multifunction Installation Tester
COMBI519
COMBI519 carries out tests on electric systems in compliance with IEC/EN 61557-1 and therefore measurements of continuity of the protection cable, insulation resistance (with calculation of PI and DAR), overall earth resistance, RCDs type B, A and AC tripping time and current, line / fault impedance with calculation of prospective short circuit / fault current, phase sequence and conformity.
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Micro probes 1 MHz up to 1 GHz
MFA 02 set
The two in the set included micro probes are used to measure low-frequency magnetic fields up to 1 GHz, e.g. at signal conductors (150µm), SMD componets (0603-0201) or IC pins. The MFA micro probes are guided by hand. An amplifier stage is integrated into the probe head. The amplifier stage (9V, 100mA) is powered via the BT 706 Bias tee. It has an impedance of 50 Ohm. The micro probes are connected via the Bias tee to a spectrum analyzer or an oscilloscope. The MFA 02 set delivery of Langer EMV-Technik GmbH includes correction lines. With the help of the correction lines the probe output voltage is converted either into the respective magnetic field or to the current which is running through the conductor.
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Oscilloscope Probes and Accessories
Teledyne LeCroy has a wide variety of world class probes and amplifiers to complement its product line. From the ZS high impedance active probes to the DH Series Differential High-bandwidth Probes which offers bandwidths up to 30 GHz, Teledyne LeCroy probes and probe accessories provide optimum mechanical connections for signal measurement.
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100Hz-50kHz LCR Meter
Chroma 11021/11021-L
Chroma Systems Solutions, Inc.
The Chroma 11021/11021-L are the most cost-effective digital LCR Meters, providing 100Hz, 120Hz, 1kHz, and 10kHz test frequencies for the 11021 and 1kHz, 10kHz, 40kHz, 50kHz test frequencies for the 11021-L. Standard RS232 interface, optional GPIB & Handler interface, high speed and stable measurement capabilities enable the Chroma 11021/11021-L can be used for both component evaluation on the production line and fundamental impedance testing for bench-top applications.
