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SEW-Taiwan
Loop Testers
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Sew 1824 LP | FEATURES ● Microprocessor-controlled.● Measures Earth Resistance without the need for poles in the ground or external measuring wires.● Earth measurement uses the real earth current path and the current generated by the electric network, without the need for any disconnection.● The Earth Resistance displayed is exactly the earth resistance that the earth current will need to go through if an earth fault occurs. (you do not need to add all the bonding points and connection paths)● Displays voltage supply at the transformer(Line to Neutral), without loading the transformer.● Single one smart push button operation; ON, Scroll through results and menus.● Checks wiring integrity (LEDs).● Auto-off / Auto-ranging (software range).● Color-coded test leads.● Combined prospective short circuit current, loop, and earth tester.● Loop test for L-E and PSC between L-N.● Voltage test L-N.● Display can be customized for large orders. ... | Loop Testers |
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Sew 1825 LP | FEATURES ● Microprocessor-controlled.● Measures the voltage drop as if 16A was flowing between Line and Neutral.● Displays voltage without current (V at 0A).● Display voltage as if 16A flowing between Line and Neutral (V at 16A).● Loop test for L-E● PSC between L-N.● Single one smart push button operation; ON, Scroll through results and menus.● Checks wiring integrity (LEDs).● Auto off/auto ranging (software range).● Combined prospective short circuit current, loop and load tester.● Display can be customized for large orders. SPECIFICATIONS Loop impedance range L-E 0.03-2000Ω (software ctrl) Test currents in each loop 11.76A at 230V / 50Hz Voltage measurement L-N 50 to 280V AC (Sine) Load current for volt drop (L-N) 16A (Calculation) Neutral wire resistance (Not available, see 1826 NA) Line wire resistance & transformer windings (Not available, see 1826 NA) PSC current (L-N) max 6kA at 230Vac supply PSC current (L-E) max (Not available, see 1826... | Loop Testers |
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Sew 2811 LP | FEATURES ● Microprocessor-controlled.● Displays and sound warning if external voltage present.● Displays mains voltage, scroll trough menus.● Checks wiring integrity (LEDs and display).● Single button operation.● Auto-off/auto-ranging.● Combined prospective short circuit current, PSC and LOOP tester.● Built-in carry case, test leads in separate pouch.● Loop test for L-E and L-N and PSC.● Voltage test L-N and L-E.● Enables analysis of constituent components in L-E and L-N loops giving resistance of earth, neutral wire, live wire and transformer winding.● Display can be customized for special orders. ● 60Hz available on request. SPECIFICATIONS Loop impedance range L-E, L-N 20/200/2000Ω (auto-range) Loop impedance test current 12A at 230V / 50Hz Voltage measurement L-N, L-E 80 to 250V AC/50Hz Earth wire/path return resistance 20/200/2000Ω (auto-range) Neutral wire return resistance 20/200/2000Ω (auto-range) Line wire return resistance & transformer... | Loop Testers |
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