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AC Power Sources, Frequency Converter
MAC-01, -02, -03
For reliability, all models of the Titan AC Power Sources/Frequency Converters are fully current limit protected against either continuous or transient short circuit or overload conditions. When an overcurrent condition exists, the internal current control loop overrides the voltage control loop and scales back the sinewave drive until it sees a safe output current level.
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Loop Meter
MZC-310S
The MZC-310S is a professional portable meter for testing electrical installations with over-current circuit breakers. The instrument measures short-circuit L-PE, L-N and L-L loop and prospective short-circuit loop current. A measurements can be done either with low testing current (up to 42A) with 2-pole method or high testing current (up to 280A) with 4-pole method that enables measurements with very high accuracy and resolution.
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Loop Impedance Tester
CZ20054
Australian and New Zealand standards mandate testing of fault loop impedance on circuits not protected by RCD's, both at installation and after maintenance. The CZ20054 Loop Impedance Tester conducts earth fault loop impedance and prospective short circuit current (PSC) tests. The Aegis Loop Impedance Tester takes the confusion out of loop/psc testing by providing an automatic wiring check upon connection and single button operation.
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Loop Calibrator
MS-420
The Loop Calibrator is a multi-purpose process loop tool that offers high accuracy in an ultra-small, rugged package. A single pushbutton selects one of five current outputs (4, 8, 12, 16 or 20 mA), which can drive up to 300 Ohms, or can act as a 2-wire simulator with an external loop power supply of up to 30 VDC.
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Loop-Powered Transmitters and Drivers
4-20mA
Loop-Powered Transmitters convert the output from proximity probes, seismic sensors, into a 4-20mA DC current, which is proportional to the input being measured. The transmitter converts the displacement or vibration signal to DC voltage and/or current for a DCS or PLC system. They control a 4-20mA current loop for a specified vibration range (ex. 0-5 mils peak-to-peak). The transmitters have a two-wire hook-up, powered solely by the loop current and have a power supply range of 15 to 36 volts.
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Anti-Tamper Sub-Assemby (DC Immune CTs + Potential Transformer)
Shanghai Powoo Industry Develop Group Limited
ATS can provide double loop current sampling and power supply for measuring unit of static meter. When load voltage, static meter can in normal condition without single-channel current.
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Electromagnetic
Promis 10
The Promis device is a multi-frequency, multi-spacing 3 component slingram type EM System for sounding and profiling the soil. This system features a transmitter loop to produce a primary magnetic field that will induce eddy current in conductive materials. These eddy currents will generate a secondary magnetic field that will be measured with the receiver loop. This system measures the in-phase and the out-of-phase components of the secondary magnetic field.
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Hall Effect DC Current Sensor
CYHCT-L20K
ChenYang Technologies GmbH & Co. KG
The sensor CYHCT-L20K is based on open loop principle and designed with a high galvanic isolationbetween primary conductor and secondary circuit. It can be used for measurement of DC current, DCpulse currents etc. The output of the transducer reflects the real wave of the current carrying conductor.
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Short Circuit Loop Impedance Meter
AMZC-304
Short circuit loop impedance measurement in networks with nominal voltage: 220/380V, 230/400V, 240/415V, with frequency 45…65Hz ; Short circuit loop impedance measurement with 15mA current, without triggering RCD. ; Detection of the replacement L and N in the socket and automatic swap in the meter
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Contact Resistance Tester
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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Micro Ohmmeter
HTHL-200P / 384
Wuhan Huatian Electric Power Automation Co., Ltd.
High-precision measurement for high-voltage switch contact (loop) resistance, also suitable for other occasions requiring high current and micro resistance measurement.
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Helmholtz Coils / Radiating Loops
Formed by a pair of conducting circular coils with many turns, each carrying a current. The coils are separated by a distance equal to the radius of the circular loops.
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Pulse Rate to 4-20mA or Voltage Converter
SY020
The SY020 Pulse Rate Converter can be linked to any frequency generating device e.g. flow meters, which gives TTL, pulse Reed switch or coil output, converting the frequency to an analogue signal. This can be 4-20mA loop current or a voltage output. The 4-20mA version unit is loop powered.
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Split Core Hall Effect DC Current Sensor
CYHCT-C2TC
ChenYang Technologies GmbH & Co. KG
This Hall Effect current sensor is based on open loop principle and designed with a split core and a high galvanic isolation between primary conductor and secondary circuit. It can be used formeasurement of DC current etc. The output of the transducer reflects the real wave of the current carrying conductor.
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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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Heat Cycling System
Yangzhou Power Electric Co., Ltd
High current test systems are used to test the thermal stability of equipment and components. The test system induces a current in the test object causing it to heat up.The system can perform the heat cycle testing for power cables type test and pre-qualification test according to IEC 60840, and IEC 62067 etc. Based on pre-qualification test needs, test system is divided into two parts: test sample loop and simulation temperature loop.
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Bench Digital Multimeter, 40000 Count, True RMS, Auto, Manual Range, 1 kV, 10 A, 4.75 Digit
72-1020
This unit measures AC/DC voltage and current, resistance, capacitance, frequency, and temperature. It also provides diode and audible continuity test, as well as 4~20mA loop testing.
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Loop Resistance Measuring Device According to DIN EN 61557-3 (VDE 0413-3)
PeakTech Prüf- und Messtechnik GmbH
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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Multi Function Testers
Kyoritsu Electrical Instruments Works, Ltd.
Live circuit warning LED:Immediate illumination of a warning lamp if the circuit under test is live Auto Discharge:Allows fast and safe discharge of electrical energy stored in capacitive circuits following testing Integral overload protection on internal continuity and insulation test circuitry Autoranging 500V DC test voltage for insulation tests 200mA short circuit current on continuity ranges Loop and RCD Testing Wiring connection check LED''s:Immediate indication if wiring of circuit under test is correct Overheat Protection:Rapid detection of overheating of internal circuitry,display of warning signal to user and automatic halting of measurement Supply Voltage Indication:Can display supply voltage value in loop impedance mode Low Current Loop Impedance Test:Short duration low test current will prevent tripping of many passive RCDs
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Split Core Hall Effect DC Current Sensor
CYHCT-C2TV
ChenYang Technologies GmbH & Co. KG
This Hall Effect current sensor is based on open loop principle and designed with a split core and a high galvanic isolation between primary conductor and secondary circuit. It can be used for measurement of DCcurrent etc. The output of the transducer reflects the real wave of the current carrying conductor.
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Loop Testing
Megger loop testers offer both traditional measuring techniques and state of the art “non-RCD Tripping” technology. Use these products to determine the prospective earth fault current, which is the maximum current able to flow in a phase-earth fault in an installation, and also to indicate the prospective short circuit current which is the maximum current able to flow in the event of a phase-neutral fault.
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Mezzanine System
5658
ECM P/N 5658 provides eight channels of 16 bit current measurement in the 0 to 25 milli-amp range. Each channel allows independent common mode voltages from -100 volts to +100 volts. Current detection is accomplished with a precision 100 ohm current sense resistor, creating a voltage drop of 2V in the current loop at 20 milli-amps.
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Multifunction Electrical Installations Meter
MPI-502
Short circuit loop parameters measurements:measurements of short circuit loop impedance in networks with rated voltage: 220/380 V, *230 V/400 V, 240/415 V and frequency 45...65 Hz,*measurements of short circuit loop impedance with current 15 mA without tripping the circuit breaker.Testing the RCD breakers of AC, A types:*testing of prompt, short-delay (general) and selective RCDs for the rated current values 10, 30, 100, 300, 500 mA,*IA measurement*RE and UB measurement without tripping the circuit breaker,*extended RCD test function AUTO, with measurement of ZL-PE with current 15 mA - measurement of IA and tA during one RCD tripping.Detection of the replacement L and N in the socket and automatic conversion in the meter.Low voltage resistance measurements of protective circuits and junctions:*measurement of resistance with ±200 mA current*calibration of test leads - possibility of using any length of test leads,*low current resistance measurement with accoustic signalling
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PAT and Installation Verification Unit
PowerCheck 1557
The PowerCheck 1557 is a comprehensive PAT and installation verification checkbox. It carries out ongoing performance checks to ensure accurate measurement between calibration intervals. Fully tests Earth Continuity, Insulation Resistance, RCD Trip Time, RCD Trip Current, Loop, PE Conductor Current, Touch Current and Flash tests.
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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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Loop Meters
The CM-1TB + XL-1 are modern digital current loop-powered meters that convert standard loop current to engineering units. They feature high accuracy and a large 0.6-inch LCD display. Proven reliability combined with low cost has earned these meters world-wide acceptance, with thousands in use.
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Linear regulated power supply with thyristor pre-regulation
NTN
High efficiency Short circuit proof and unlimited operation with full current in short circuit condition voltage and current regulation with automatic and sharp transition; control mode indicated by LEDs Voltage and current setting with 10-turn potentiometers with precision scale; the adjusting knob can be locked 4 digit DVM for voltage and current (for table-top models) Sense terminals for the compensation of voltage drop on the load lines. The nominal voltage always refers to the output terminals Parallel and series connection possible Suitable for inductive and capacitive loads for 700 W nominal power and higher, limitation of inrush current on switching on Interlock loop to monitor the external load and internal loop as a standard for three phase units Elapsed-hour meter as a standard for three phase units
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Intelligent Transmitter with Digital Indication
LEO 3
KELLER AG für Druckmesstechnik
LEO 3 is a micro-processor based transmitter with digital double-display for pressure (top display) and for the output signal (bottom display). The display is powered from the 4...20 mA current loop. Functions:
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Measurement & Simulation
Highland Technology offers a wide array of tools for measurement, simulation, and control. Tachometers, thermocouples, RTDs, precision voltages, current loops, strain gauges, and more can be measured or simulated by Highland's products.
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Digital LOOP/PSC/LOAD Tester
1825 LP
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Measures the voltage drop as if 16A was flowing between Line and Neutral.● Displays voltage without current (V at 0A).● Display voltage as if 16A flowing between Line and Neutral (V at 16A).● Loop test for L-E● PSC between L-N.● Single one smart push button operation; ON, Scroll through results and menus.● Checks wiring integrity (LEDs).● Auto off/auto ranging (software range).● Combined prospective short circuit current, loop and load tester.● Display can be customized for large orders.