Multifunction installation tester

Data records

• Auto-test sequences run several of the installation tests in one operation from a single connection, reducing reconnections and test time; predefined sequences are matched to TN, TT and IT system types and can be extended with the user's own steps. Source: Metrel product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.auto-sequence
• Continuity of protective and bonding conductors is tested with a direct current whose polarity is reversed between readings, and a low-current option is provided for circuits where the test current would otherwise trip a residual current device. Source: Metrel product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.continuity
• A multifunction installation tester combines in one hand-held instrument the tests used to verify a low-voltage installation: insulation resistance, continuity of protective conductors, line and loop impedance with prospective fault current, residual current device tests, ground resistance, voltage and frequency, and phase sequence. Source: Fluke product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.functions
• Ground resistance within a multifunction tester is measured by the three-wire stake method or the two-clamp method, so an electrode is checked during installation verification without a separate ground tester. Source: Metrel product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.ground-methods
• Before an insulation test some instruments detect an appliance left connected on the circuit and stop with a warning rather than apply the test voltage, protecting the connected equipment. Source: Fluke product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.insulation-pretest
• The loop impedance function offers a no-trip mode for circuits protected by a residual current device and a high-current mode that gives faster readings elsewhere, and the highest loop value found on a circuit can be retained in memory. Source: Fluke product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.loop-modes
• Some instruments of this class add a three-phase recorder for voltage, current, power, harmonics and distortion, so that a power quality record is logged with the same instrument that performs the safety verification. Source: Sonel product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.power-quality-option
• Results are stored in a structured memory organized by site, distribution board and circuit, and transferred by cable or wireless link to reporting software that produces the installation certificate or test report. Source: Fluke product page, web page edition. Verified 2026-10-27. Record instr.multifunction-installation-tester.records