SP19M
Voltage Detector User Manual
Preface
Thank you for purchasing the new voltage detector. In order to
use this product safely and correctly, please read this manual
thoroughly, especially the Warning part.
After reading this manual, it is recommended to keep the
manual at an easily accessible place, preferably close to the
device, for future reference.
Overview
The SP19M products are non-contact voltage detectors with
built-in flashlight and acousto-optic synchronous alarm function.
The CAT IV 1000V safety class ensures users' safety, making
them essential tools for industry and home.
Low voltage mode (24V AC ~ 1000V AC)
Suitable for testing low-voltage motor ( < 90V), audio systems,
arc
welding machines, underground mine lighting, cables with thick
insulation layer, and other weak electromagnetic AC signals.
High voltage mode (90V AC - 1000V AC):
For detecting urban electric supply and three-phase systems.
For example, power distribution units, electrical panels,
electrical appliances.
WARNING
1. Please carefully read and fully understand the warnings and
operating
instructions before use. If the equipment is used in a manner
not specified by the manufacturer, the protection provided by
the equipment may be impaired.
2. Please test the detector on a known live source within the
rated AC voltage range before use.
3. If the detector appears damaged or is not working property,
stop using it immediately.
4. Do not detect voltage higher than 1000V.
5. Use caution when working with voltages above AC 30Vr.m.s,
42Vpeak or DC 60V. Such voltages pose a shock hazard.
Clean the tester casing with a damp cloth and mild detergent.
Do not use abrasives or solvents!
6. There may still be voltage even when no acoustic-visual
alarm is on.
7. The insulation type, wire thickness, distance from voltage
source, shielded wire, other wires, socket design, and other
factors may adversely affect test result. If there are
uncertainties, use other methods to verify the voltage.
8. Do not assume neutral or ground wire is safe to touch.
Incorrect or poorly connected circuits may cause wires to be
charged.
9. The magnetic field generated by magnetized components
may interfere with detection
10. When low battery indication appears, please replace the
batteries.
11 . When using the detector, please only hold up to the line
before the translucent sensing part and not over.
12. Comply with local and national safety regulations and
requirements.
13. The detector will not detect any voltage if:
• The wire is shielded
• The operator is not connected with the ground or isolated from
an effective ground
• The voltage is DC
14. The detector may not detect any voltage if:
• The operator does not hold the detector
• The operator is wearing gloves
• The wire under test is partially buried or in a grounded metal
conduct
•The magnetic field generated by the voltage source is blocked,
suppressed or interfered with
• The frequency of the voltage being detected is not a perfect
sine wave and may be distorted by harmonics
•The detector is used outside of the operating specifications
(see nTechnical Specifications for details)
Electrical Symbols
Panel Description
2
4
1
3
5
1
NCV sensor head
3
Sensing signal LED 4
5
Power button
7
Pocket clip
Operating Instructions
1. Turning on the detector
Short press the power button. The buzzer will beep twice and the
red indicator light on the panel will light up, indicating that the
detector is on and ready for use. The default AC voltage detection
range is 90-1 000V.
2. Turning on/off the flashlight
Flashlight on/off: Short press the flashlight button to tum on/off the
flashlight.The flashlight will automatically tum off when the detector is
not used for 5 minutes.
3. AC voltage detection
Place the sensor head near the test object or the power socket
with AC voltage. When AC voltage is detected, the red LED in the
tip and buzzer will be on. Buzzer and sensing LED frequencies
increase when detector gets closer to the test object.
Note: Please unplug other electrical devices on the socket
before detection.
4. Detection range selection
a) When the detector is on, the default mode is high voltage mode,
with detection range of 90-1 000V. The red indicator light on the
panel will light up.
b) Short press the power button once. The red indicator light will
switch to green, and the device will switch to low voltage mode, with
range of 24-1000V. In low voltage mode, the detector is more
sensitive to electrical interference/noise. Please only use low voltage
mode during weak electrical field
c) Short press the power button once again. The green
indicator lightwill switch to yellow, and the device will switch
to magnetic field detection mode. Note: In the magnetic
field detection mode, voltage cannot be detected at the
same time.
7
6
8
2
Flashlight lighting
Mode status indicator light
6
Flashlight button
8
Battery cap
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