Electrical Test and Measurement
The Electrical Test and Measurement category groups together instruments designed to accurately assess the fundamental quantities of direct and alternating current: voltage, current, resistance, power, insulation and continuity. It includes equipment such as precision multimeters, current clamps, megohmmeters, micro-ohmmeters, power analysers and insulation testers. This equipment is used to guarantee the safety of installations in accordance with standard IEC 61010, to validate the performance of instruments in accordance with IEC 61557, and to ensure metrological traceability as part of ISO 17025 accreditation. In research and development, they are used to measure heat dissipation, power supply stability and Joule effect losses. In production, they are used to check manufacturing tolerances and batch uniformity, and to calibrate energy chains. In maintenance, they detect leakage currents, phase imbalances and insulation faults up to 5 kV DC. Recent models incorporate USB, LAN or Bluetooth interfaces to make it easier to record and centralise measurements. Used in energy, transport, heavy industry and infrastructure, these instruments are a cornerstone of reliable, reproducible electrical diagnostics that comply with international standards.
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CA8335-4XAMP450-4XMN93ADW
CHAUVIN ARNOUX
Wattmeter-Power-Transients SINGLE/TRI:4U/4IQualistar+, 1000V AC+DC.
CA6161
CHAUVIN ARNOUX
Multifunction controller with touchscreen and advanced connectivity.
CA8336-4XAMPFLEXA193-450
CHAUVIN ARNOUX
Single/three-phase power meter with USB and advanced measurement capabilities.
WT210
YOKOGAWA
Single-phase power analyser, DC and AC 0.5 Hz to 100 kHz, accuracy 0.1%.
8485D
KEYSIGHT / AGILENT / HP
Sensitive measurement probe from 100pW to 10µW for frequencies from 50MHz to 26.5GHz.
56D
SEFELEC
The SEFELEC 56-D is a dielectric strength and insulation tester. It can perform tests up to 5 kVAC (50 VA) and 6 kVDC, with programmable test ramps and a built-in megohmmeter up to 200 GΩ. The device features a 7-inch touch screen, multiple communication interfaces...
CA8336
CHAUVIN ARNOUX
Three-phase power and energy analyser, ideal for electrical maintenance.
CA8336-4X-MA193-250
CHAUVIN ARNOUX
Wattmeter-Power MONO/TRI: 5U/4I TRMST+Inrush -1000V(AC+DC) -10KA(AC+DC) - USB.
GUARDIAN-1050
QUADTECH
Earth continuity tester with a measurement range of 0.1 to 510 mOhm.
practical questions about Electrical Test and Measurement
01
Why can an electrical measurement be accurate... but not usable?Because a correct value isolated from its context has little meaning. The actual load, the temperature, the transient regime or the connection mode all have a major influence on interpretation. In electrical testing, relevance depends as much on the measurement conditions as on the intrinsic accuracy of the instrument.
02
What's the difference between measuring to diagnose and measuring to certify?Diagnosis aims to understand a behaviour or locate a fault, and tolerates a certain methodological flexibility. Certification, on the other hand, requires strict procedures, traceable instruments and documented repeatability. The same device can be used for both purposes, but not without adapting the protocol and the level of requirements.
03
Why is safety class as critical as precision?Because reliable measurement should never be at the expense of operator safety. An unsuitable CAT class can expose you to destructive overvoltages, even with a very accurate instrument. In an industrial or energy environment, electrical robustness often takes precedence over the last digit of resolution.
04
When is a specialised instrument preferable to a universal multimeter?As soon as the measurement becomes critical or repetitive. Micro-ohmmeters, megohmmeters or power analysers offer dedicated methods that are more stable and more reproducible than measurements taken with a general-purpose tool. They reduce interpretation errors and provide greater security for technical decisions.
05
Is reconditioned electrical equipment suitable for demanding environments?Yes, as long as it is requalified and documented. Electrical instruments are based on stable, proven architectures. Serious reconditioning, including functional and metrological verification, can deliver performance levels that are suitable for maintenance, production and R&D, with better control of lead times and costs.
