Features

• Instructions, mains plug test leads, 3-wire test lead set with crocodile clips, 8 x AA alkaline batteries, neck strap. LT310 ; 320 Non Tripping Loop Tester Accessories. Two non-tripping loop impedance testers that comply with EN61557 part 3 for testing, measureing or monotoring of protective measures. RCDs rated 30mA or greater are not tripped, even electronic RCDs 3-wire low current non tripping loop test measure 0.01Ω to 2kΩ (autoranging) with resolution 0.01Ω up to 10Ω Two wire high -current test is selctable where RCD connection is not an issue 1A to 23kA prospective fault current (PSCC) display LED indication of correct supply and test lead connection 3-phase safe - will not be damaged if connected across phases 100V to 280V suitable for single-phase testing Supply voltage measurement range Clear 20mm high digit LCD display with analogue arc bargraph Tough rubber armoured case with self contained cover that locks away underneath the instrument during *** Designed to hang comfortably around the neck when in "hands free" *** Easy-to-*** with colour coded ranges to **** in the test range selection Safety input terminal interlock - prevents unsafe connection of test leads Safety lockout prevents the test from operating when the circuit voltage is >280V (LT310) or >480V (LT320) Meets the requirements of BSEN 61010-1 for safe connection t a 440V Installation Category III supply (300V Phase to Earth) Weatherproof to IP54. LT320 model additional features:. 50V to 480V operating range allows single and three-phase testing 25Hz to 450Hz frequency measurement range Phase rotation indicator Max Zs display R1+R2 is calculated and displayed Backlit display and range selection ideal for low light environments