Sonel VT-3 Voltage Tester User Manual
- June 5, 2024
- Sonel
Table of Contents
Sonel VT-3 Voltage Tester
Warnings
- The tester is used for voltage detecting. It must be used by skilled personnel only.
- Before using the tester, read the manual and follow its safety guidelines. Protection measures used in the tester may be ineffective, if not applied in accordance with manufacturer’s instructions.
- Before using the tester, check if its operational by testing it on a known AC voltage (i.e. next appli-cable socket with live voltages).
- The type and thickness of the insulation, distance from the power source, shielded cables and other factors may affect the operation of the tester. If you are unsure about the test result, check the presence of voltage in a different way.
- Do not use the tester:
- to test the absence of voltages,
- if it is damaged or not working properly. If in doubt, replace it with another,
- for voltages higher than the upper measuring range indicated on the housing.
- Be careful when working with voltages above 30 V AC – there is a risk of electric shock.
- Comply with all applicable safety regulations. When working near live circuits (especially in places where an electric arc may be generated), use personal protective equipment.
- Do not operate the tester, when there is a warning of low battery level. Immediately replace the batteries with new ones.
- Inoperative flashlight may indicate damage to the device or discharged batteries.
- When the device is turned ON, the battery compartment must be closed.
- Looking directly into the LED lamp may damage your eyes.
- Dirt and moisture of the device may generate a risk of electrical shock.
NOTE!
- Unauthorized persons are not allowed to disassemble the device.
- Disassembling and repairs of the device must be done by skilled persons only.
Safety symbols
- This symbol located near another symbol or terminal, indicates that the user should read the further information contained in the manual.
- This symbol located near the terminal, indicates that in normal use there is a possibility of dangerous voltages.
- Protection class II – double or reinforced insulation
- This symbol indicates that the device must not be disposed of into any household waste containers, but must be provided to a designated collection point for electronic waste.
- The device meets the legal requirements of the European Union.
- Measurement category of the instrument.
Operation
Switching the tester ON
Press shortly You will hear a single beep and the green LED and module will
light up. The tester is turned ON and ready to use.
Switching the tester OFF
Press shortly You will hear a double beep, and the green LED will go out.
Disabling and enabling sound signalling
-
When switching the tester ON
Press and hold button until the green LED activates. Now, the tester works without sound signals. To restore the sound signalling, press and hold button until the green LED starts flashing and the tester beeps. -
When the tester is active
Press and hold button until the green LED starts to flash. To restore the sound signalling, press and hold button until the green LED starts flashing and the tester beeps.
Checking the tester
Before using the tester:
- check whether the green LED is ON,
- check the tester on a known AC voltage within the measuring range
Voltage measurement in High Mode (100 … 1000 V AC)
Approach the measuring tip of the tester to the tested AC voltage. If the
device detects a voltage within the measuring range, the green LED goes out,
the red LED is activated and a modulated beep is emit-ted.
Voltage measurement in Low Mode (12…1000 V AC)
Press and hold the 12 V button. LED changes from green to orange to indicate
the change of the measuring range. While pressing the 12 V button, approach
the measuring tip of the tester to the tested AC voltage. If the voltage is
detected, the orange LED goes out, the red LED starts flashing and a beep is
emitted. The frequency of light and sound signals increases, when the tester
is closer to the tested voltage. If the high voltage is detected, the
measurement mode automatically switches to ‘High Mode’: red LED lights
continuously and a modulated beep is emitted.
- The tester does not show the voltage value.
- The cause of automatic mode change to ‘High Mode’ may be the type and thickness of the insulation, distance from the power source or other factors
Indicator of discharged batteries
If the green LED is not active, replace the batteries. When the tester is
turned ON and the battery level is too low for proper testing, the tester will
beep three times and the green LED will go out, indicating that the tester
cannot be used. Replace the batteries to continue testing.
Auto-Off
To prolong battery life, the tester will switch OFF automatically after
approx. 5 minutes of inactivity. During the switching OFF process, the device
will beep three times and the green LED will go out.
Flashlight
Shortly press button to turn ON/OFF the flashlight. To prolong battery life,
the flashlight will switch OFF automatically after approx. 5 minutes The Auto-
Off is signalled by double beep.
- If the battery level is too low for sufficient flashlight operation, the tester will indicate this fact by three beeps. Then the flashlight will go out.
- The module for voltage testing has own criterion for the batteries and in the above situation it may still running. In order to verify it, follow sec. 3.4.
Replacing batteries
- Carefully unscrew the battery cover a the back of the housing (element with flashlight LED).
- Remove old batteries and insert new ones, paying attention to their polarity.
- Carefully align the battery cover, ensure that the springs touch the contacts.
- Screw the cover onto tester until it feels tight, but do not use excessive force.
- Check the tester on a known AC voltage within the measuring range
NOTE!
When replacing the batteries, make sure that you tightening the battery cover
firmly to maintain protection level of IP67. When the cover is too loose or
too tight, the water-proof and dustproof properties may be limited.
- When installing the batteries for the first time, remove the protective sticker from the contacts.
- Remove the batteries, if the product is not to be used for a long time
Technical Specifications
- measurement category according to EN 61010-1 CAT IV 1000 V
- Ingress Protections rating in accordance with EN 60529 IP67
- contamination level 2
- voltage detection ranges 100 000 V AC 12 00 V AC
- frequency range 50 / 60 Hz
- time to AUTO-OFF 5 min
- indicators LED’s (green, orange, red), beep
- flashlight white LED with lens
- power supply 2 x AAA 1.5 V battery
- operating temperature 0°C…+50°C
- storage temperature -10°C…+60°C
- humidity max. 80%
- operational altitude 2000 m
- dimensions 160 x 23 x 25 mm
- weight 78 g
- weight without batteries 55 g
- compliance with the requirements of EMC, LVD
- compliance with the requirements of standards EN 61010-1, EN 61326-1, EN61326-2-2 EN 61010-031+A1, EN 61010-02-032, EN 61010-02-033