Catalogue 2023 Measuring instruments and testers

Measuring and Regulation Equipment Manufacturer Metrel is an international Group and an expert in the research, development and production of test and measurement equipment. Metrel brand name is worldwide recognized and associated with high quality test and measurement products. Metrel’s instruments provide test and measurement solutions in different maintenance areas including the safety testing of electrical installations and appliances, power quality analysis. In short, our products help to provide information about the safety and functionality of different installations and environments....

Contact us certificate (non accredited). Accredited calibration certificate can also be issued if it is required by the customer. TECHNICAL SUPPORT Metrel provides the following support to its customers and distributors: • On-line technical support: any inquires related to Metrel products can be sent onto a designated e-mail address: - [email protected] - GLOBAL market; - [email protected] - UK market; - [email protected] - GERMAN market. • Technical support line: the technical support can be obtained also over the phone: +386 (0)1 7558 200 - GLOBAL market; +44 (0) 1924 245 000 - UK market; +49 (0)...

Instruments Designed with Future in Mind METREL is one of the world leading manufacturers and distributor of high quality electrical measurement and test instruments, providing the market with innovative solutions on the following segments: • General information about our products with quick and practical SEARCH function for product searching. • Detailed information about our products in extended product specifications. • Latest information about training and seminars. • Service information. • Download centre. • Product finder. • Helpdesk, improved with ticketing system. • Answers to common questions...

Content Electrical Installation Safety Testing GOOD TO KNOW Testing the Safety of Electrical Installation Electrical Installation Safety ELECTRICAL INSTALLATION SAFETY High Voltage Insulation / Continuity / Earth / Transformer Appliance / Machine / Switchboard Safety Power Quality Analysis Equipment for laboratories and Schools Multimeters / Clamp meters / Voltage testers / Thermal cameras Software MULTIFUNCTIONAL TESTERS Selection Guide for Multifunctional Testers 1.06 AUTO SEQUENCE testing 1.08 MI 3155 EurotestXD 1.09 MI 3152 EurotestXC 1.12 MI 3152H EurotestXC 2,5 kV 1.14 MI 3102 BT EurotestXE...

Good to know Testing the Safety of Electrical Installation Find out more about testing safety of electrical installations According to European standards requirements electrical installation safety testing includes a combination of following tests: • Insulation resistance, • Continuity of protective conductors and equipotential bonding, • RCD testing, • Line and fault loop impedance, • Earth resistance testing (two-wire method without probes, three / four-wire method with two probes, method with current clamp and two probes, method with two current clamps) • Specific earth resistance, • Phase...

RCD selection table according to their sensitivity: AC type Line impedance Line impedance is measured in loop comprising of mains voltage source and line wiring (between the line and neutral conductors or between lines on a 3-phase system). It is covered by requirements of the EN 61557-3 standard. Scope of line impedance test is: • to verify effectiveness of installed over current devices; • to verify internal impedance for supplying purpose. The line-neutral short circuit loop consists of: • Power transformer secondary impedance ZT, • ZL (phase wiring from source to fault), • ZN (neutral wiring...

Connection diagrams: Recommended earth resistance measuring methods: TN system L1 Two clamps method (clamps around main N/PE cable). Circuits for three-wire measurement Circuit for voltage measurements Two-wire method (test from the socket between N and PE) Circuit for voltage measurement, frequency and phase sequence L1 Circuits for three-wire measurement L2 L3 N TT Three-wire method (test leads to auxiliary rods in triangle) Lightning conductor Circuit for two clamps measurement Limits: 2 Ω – above ground, 10 Ω – complete system, 20 Ω – individual electrode or 8% of specific earth resistance....

The overvoltage category specifies the highest mains voltage (or lightning strike, short circuit due to incorrect use, etc.) that the instrument can withstand without danger for the tester or for the object being measured. The standard specifies four overvoltage categories. The overvoltage category affects component sizing via the air gap. The higher the category, the bigger is the distance to the power source. CAT I - electronic devices, signal level. • is the installation single- or three-phase; • is the RCD present in the installation. To simplify the selection of the appropriate test sequence...

Multifunctional installation testers Selection Guide for Multifunctional Testers FEATURES Insulation resistance Test voltage (VDC) Autotest insulation L-PE, N-PE, L-N Diagnostic test (PI, DAR calculation) Continuity of PE conductors with automatic polarity change, test current 200 mA Low resistance measurement (continuous measurement), test current 7 mA Line impedance with Ipsc calculation 4 wire Line impedance with Ipsc calculation Loop impedance with Ipsc calculation 4 wire Loop impedance with Ipsc calculation RCD Trip Lock loop impedance Built-in fuse tables for PASS / FAIL evaluation Contact...

• • • • • • AC / A / B / F / B+ •/• • • • • • Option Option Option Option Option • • Option Option • • Option Option • • 14 … 500 Hz • • • • •/•/• • 8 GB • •/• Option CAT III / 600 V CAT IV / 300 V IP 40 6 x AA • 1.37 230 x 103 x 115 • • Option Option • • Option Option • Option Option • Option Option