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USER MANUAL
Jefferson Voltage Tester
v.1.1
JEFVOLTST02
JEFFERSON
VOLTAGE TESTER
JEFVOLTST02
WARNING!
Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS
before operating.
Failure to follow the safety rules and other basic safety precautions may result in
serious personal injury
www.jeffersontools.com
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Summary of Contents for Jefferson Professional Tools & Equipment JEFVOLTST02
- Page 1 USER MANUAL Jefferson Voltage Tester v.1.1 JEFVOLTST02 JEFFERSON VOLTAGE TESTER JEFVOLTST02 WARNING! Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury...
- Page 2 Introduction This unit is a portable AC voltage and magnetic field detector. It can be used to check whether a cable or socket is live or distinguish between a live wire and a neutral wire, or used to detect AC/DC magnetic field. It has illumination function and two sensitivity degrees ( high and low sensitivity degrees ) for you to select from in AC voltage detection function.
- Page 3 Jefferson Voltage Tester JEFVOLTST02 USER MANUAL v.1.1 Structure Button This button can be used to: • Turn on or off the detector. • Simultaneously enable or disable the built-in buzzer and the red signal LED. Button This button can be used to: Switch among low-sensitivity AC voltage detection mode, high-sensitivity AC voltage detection mode, and magnetic field detection mode.
- Page 4 Understanding the display Operation instruction How to Turn on or off the Detector To turn on the detector, press and hold down the Power button for about 1 sec. The red signal LED flashes once, the built-in buzzer sounds a beep, and the green backlight turns on. The display shows the symbol indicating that the built-in buzzer and the red signal LED are enabled.
- Page 5 USER MANUAL v.1.1 Jefferson Voltage Tester JEFVOLTST02 How to Use the Illumination Function When the detector is on, press and hold down the button for about 2 secs to turn on or off the white illumination LED; the red signal LED will flash once and the buzzer will sound a beep if the buzzer and the red signal LED are enabled.
- Page 6 Detecting Magnetic Field Cont. When the detector detects an AC magnetic field ( such as the magnetic field generated by a coil with ac current ), the entire signal detection intensity bar graph should flash on the display. Moreover, if the red signal LED and the buzzer are enabled, the red signal LED should flash and the buzzer should sound discontinuously when the detector detects an AC magnetic field.
- Page 7 USER MANUAL Jefferson Voltage Tester JEFVOLTST02 v.1.1 Replacing the Batteries When the low battery indicator " " appears on the display, the batteries are not high enough. If the charge level of the batteries continues to decrease, the detector will turn off automatically to protect the batteries.
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Page 8: Ec Declaration Of Conformity
USER MANUAL v.1.1 efferson Voltage Tester JEFVOLTST02 EC DECLARATION OF CONFORMITY We, Jefferson Professional Tools & Equipment, as the authorised European representative of the manufacturer, declare that this equipment conforms to the requirements of the following: Safety standard EN 61010-1: 2010+ A1:2019...
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