Single-functional testers
Electrical installation safety testing is a wide subfield of general electrical safety testing and encompasses both troubleshooting and fault-finding in complex industrial installations and simple, often periodic testing of only specific parts of the installation. The former usually requires the use of multifunctional testing devices, while the latter can be more conveniently done by testers with far fewer test and measurement functions.
Metrel has several dedicated single function electrical installation safety testers in its portfolio. Some are suitable for testing of low voltage installations protected by an IT earthing system as commonly found in hospitals, while others are dedicated IMD, ELM and RCM devices testers or support 1 or 2-clamp earth and ground resistance measurements.
Features
- Predefined and / or programmable AUTO SEQUENCEs. Automatic LIVE and DEAD tests, programmable, no lost or forgotten results/parameters, worst case evaluation.
- Automatic evaluation of safety at test point, up to 50 parameters, fuse and RCD characteristics, adjusted and custom limits and testing results combined together and evaluated simply as PASS / FAIL.
- Report creator (MESM or EuroLink PRO software) with powerful two way communication.
- Up to 5 times faster testing than with any existing equivalent safety tester.
- Support for testing of TN / TT / IT earthing systems.
- 3- and 4-wire Zloop (L-PE) and Zline (L-N and L-L) impedance measurements at entry and exit points of circuits, comparison of both results and ΔU calculation in %, Ipsc and Ipfc calculation, fuse protection evaluation.
- Uc, Zline & Zloop tests combined into one automated impedance testing procedure (Z AUTO).
- Automated RCD testing procedure (RCD AUTO).
- Contact voltage measurement with P/S probe.
- Test of RCD protection at AC / A / F / B / B+ / MI RCD / EV RCD current shape on G or S types.
- Evaluation of PE continuity (automatic polarity switch).
- Measurement of PE resistance.
- Automatic insulation testing (switchboards, circuits, insulation of walls and floors, antistatic floors etc.).
- PI / DAR calculation.
- Varistor testing.
- TRMS clamp-on leakage current measurement.
- Over-voltage protection with ramp testing.
- IMD and ISFL testing on IT systems, medical site testing, mobile Installations testing.
- Testing of IMD, ELM and RCM devices with ISFL pre-test and voltage balance evaluation.
- Earth / ground resistance testing: 2-wire, 3-wire, 4-wire (optional), 1 clamp, 2 clamps.
- Functional inspections.
- EVSE AUTO SEQUENCEs and functional inspections.
- Functional and visual inspections (machines).
- Measurement filtering by selected area group.
- Support for accessories for three phase system testing, locating fuses and cables, illumination measurements, high resolution Z impedance measurements for power lines, QR and/or barcode scanners etc.
- Support for PC SW (Metrel ES Manager) and Android (aMESM).
Applications
- Power generation.
- Renewable powerplants.
- Hydroelectric power.
- Wind power generation.
- Power distribution.
- Remote antenna tower earthing resistance.
- Insulation of long cables.
- Transformers predictive maintenance.
- Specific earth resistance measurement methods (optional).
- Earth leakage relay and fault currents (optional).
- Substation electrical safety.
- Mains bonding and touch voltages during fault.
- Switchboards and automatic trip-out protection.
- Public places electrical safety.
- Earthing measurement with fall of potential method.
- 2-clamps method for measuring lightning and earth protection.
- Surge protection devices.
- Effects of power quality issues on living and working environment.
- Wet and outdoor locations.
- IT system.
- DC installations.
- EVSE construction and testing.
- Machines and fixed connected loads safety.
- Two clamps method for measuring lightning and earth protection.
- Hospital earthing measurement with fall of potential method.
- Mains bonding and touch voltages during fault current.
- Surge protection devices in hospitals.
- Hospital switchboards and automatic trip-out protection.
- Medical IT system.
- Isolated areas RCDs.
- Public and workspace electrical safety in healthcare.
- Electrical safety in hospital wet areas.
- Generator safety.
- Field hospital.
- Earth continuity and insulation testing.
- Line and loop impedance and RCD testing.
- Basic earth resistance.
- Voltage measurements.
- Current measurements.
- Frequency measurements.
- Installation troubleshooting.
*Note: Presented features, functionalities and other information on this page represent a compound list of all products’ capabilities and not capabilities of each separate product. Consult datasheets and user manuals of each specific product for detailed information about supported features and functionalities.
