AEMC Voltage Absence Tester Model C.A 771 ? An essential tool for electricians to ensure that voltage is not present before working on any electrical equipment or installation connected to the electrical system. Compliant with IEC 61243-3 Edition 2, the C.A 771 VAT can be used to work on any 1000V CAT IV installation. To meet the requirements of the standards in certain countries, these testers are available in two versions: equipped with IP2X test probes or without. The C.A 771 has a redundant safety system in the event of power supply faults; the ELV LED flashes when the voltage exceeds 50VAC / 120VDC. Safety is ensured when testing GFCI and Residual Current Device (RCD) tripping by means of a double control system. Both hands are necessary to press the two buttons simultaneously. The integrated autotest checks the electrical circuits, power supply, displays and the condition of the measurement leads. Phase rotation measurement is simple and quick with the 2-wire microprocessor system. Audible and visual continuity testing is provided in compliance with Appendix B of the IEC 61243-3 standard. The tester can also detect stray voltages and offers unipolar phase identification. Voltage Absence Testing (VAT) ? Voltage Indication - LEDs 12 to 1000Vac ; 12 to 1400Vdc ? Frequency Range DC, 16.67 to 800Hz ? Input Impedance >500k???? ? Max. Peak Current 3.5mA RMS ? Polarity Indication Yes ? Redundant Hazardous? Voltage Indication The ELV (Extra-Low Voltage) LED indicates that the voltage is higher than the SELV (Safety Extra-Low Voltage) with the rate at which it flashes proportional to the voltage level. ? Stray Voltage Detection Yes (by low-impedance load switching) RCD Tripping Yes (by low-impedance load switching) Phase/Neutral Identification >50V (45 to 65HZ) ; >150V (16.67 to 45Hz) Continuity & Resistance ? ? Buzzer Trigger Threshold 100???? typical (150???? max.) ? Extended Continuity Test (resistance) 2k????, 60k????, 300k???? ? Test Current / Open-circuit Voltage ?? 1mA / ?? 3.3V Phase Rotation 2-wire method with microprocessor ? Ph/Ph Voltage 50 to 1000Vac (45 to 400Hz) General ? Buzzer Intermittent beep for Voltage Detection,Continuous beep for Continuity Cable Length 3.3ft (1m) Display LEDs Power Supply 2 x AA (LR6) Batteries (included) Battery Life 5000 ten second measurements approximately Dimensions 9.0 x 2.4 x 1.5?? (228 x 60 x 39mm) Weight (With Battery) 12.4oz (350g) approximately Operating Temperature/Humidity -22 to 140????F (-30 to +60????C) / 20 to 95% RH non-condensing Storage Temperature/Humidity -40 to 158????F? (-40 to +70????C) / 20 to 95% RH non-condensing IP Rating IP 65 Safety Tools 1000V CAT IV per IEC 61010-1