Resistance Measurement - VOLTCRAFT VC64 Bedienungsanleitung

DESCRIPTION OF SYMBOLS
Alternating current (AC)
V/AC: Alternating voltage
V AC DC
V/DC: Direct current
12/24/36/50/120/230/400/690 Display of rated voltage range in volt (V)
Direct current positive potential DC
Direct current negative potential DC
k Ω Electrical resistance in kilo-ohm
Hz Electrical frequency (Hertz)
Single-pole phase display 100 - 690 V
as well as warning for hazardous voltage (>50 V/AC, >120 V/DC)
Operation also possible with flat batteries or without batteries
Symbol for continuity check
Battery symbol for used battery
Conformity symbol, CE-approved
Device and equipment for working under voltage. Personal protective
measures required.
Protection class 2 (double or reinforced insulation/protective insulation)
INSERTING / REPLACING BATTERIES
Disconnect the voltage tester from the respective measurement object.
Hold both measuring tips together. If no signal sounds or an empty battery symbol appears on the display,
the batteries must be replaced. To protect your safety, attach the two plastic covers/measuring tip covers.
For this purpose, loosen the screw (18) using a small Phillips head screwdriver. Now, carefully pull the
battery compartment (17) downwards along the cable. Remove the empty batteries from the measuring
instrument, where applicable, and insert new batteries of the same type (see "Technical Data") into the
battery compartment observing the correct polarity. The use of rechargeable batteries is not permitted. We
recommend to use alkaline batteries. They guarantee a long service life. Slide the battery compartment
back upwards until you feel it click in place and carefully close the compartment with the screw (18).
CONTROLS
1 Measuring tips
2 Test probe "-"
3 Test probe "+"
4 Holder for second measuring line
5 LED hazardous voltage
6 AC or DC voltage indicator
7 Continuity or hold indicator
8 Voltage indicator
9 Ohm indicator
10 Winding direction indicator
11 Load indicator
12 Bar graph indicator
13 Empty battery indicator
14 Load button
15 Button for measuring tip light
16 Button for hold/ohm measurement
17 Battery compartment
18 Screw for battery compartment
FUNCTIONALITY TEST / SELF-TEST
We recommend to test the functionality of the measuring instrument before each measurement.
Hold both measuring tips together. A signal will sound and the symbol (7) will turn on. The product is ready
for operation.
The measuring instrument switches on automatically when the respective measurement unit is detected.
After a measurement, the measuring instrument turns off automatically to save power.
If no signal sounds, replace the batteries. If functionality is not given even after replacing the batteries, the
product must not be used!
Additional self test function (all LED, TORCH, BUZZER are ON for 2 sec) is implemented for all Conrad
VTs. It can be started when VT is off. The user need to push Torch button (15) and hold for 4 sec. After that
all LED/symbols light, Torch light and buzzer sound is active for 2 sec.
Always attach the measuring tip cover if you are no longer using the device.
SINGLE-POLE PHASE TESTER
The single-pole phase tester works at a voltage of at least 100 V/AC without counter potential.
Keep in mind that the output can be affected when measuring outer conductors with e.g. strongly insulating
protective equipment or at insulating locations.
A single-pole phase tester cannot be used to test de-energised conditions!
VOLTAGE TESTING/PHASE ROTATION DIRECTION
The LCD display (8) shows the measured voltage (AC/DC), the phase rotation direction <L or R>
(100 V AC and higher) and the measurement range in the bar chart. The display can be paused for
approx. 30 seconds by pressing the Hold button (16).
Connect the two measuring tips with the object to be measured.
The voltage tester automatically switches on when it detects a voltage of 12 V or higher.
When using the voltage tester in the measurement category CAT III and CAT IV, it is recommended
to attach the plastic protective covers provided to the test probes (2) and (3) to decrease the length
of the free contact tips. This reduces the risk of a possible short circuit during testing.
For ease of use, the product has a holder (4) for a second measurement line. This makes measuring
e.g. directly via mains sockets easier.
For direct current, the polarity of the voltage displayed refers to the measuring tip of the measur-
ing instrument (3).
When the batteries are empty, only the warning indicator (5) for "Dangerous Voltage" will
function when the test voltage reaches 50 V/AC or 120 V/DC. Do not ever touch the measuring
contacts, if this indicator is on. Change the batteries.
CONTINUITY TEST
Before a continuity test, make sure that the measurement object is de-energised.
Connect the two measuring tips with the object to be measured. A signal will sound and the
LCD will show the continuity symbol (7) and Con, if the continuity is max. 400 kΩ +50%.
Disconnect the measuring tips from the measurement object after the measurement.

RESISTANCE MEASUREMENT

To activate the electrical resistance measurement function, press the "hold" button (16) for about
3 seconds. The measurement unit switches to the electrical resistance measurement function.
Now you can connect the two test prods on the object to be measured.
The measured amount of electrical resistance is showed on the display.
By pressing the "hold" button briefly, the measurement results can be frozen.
Make sure that the object to be measured is not under voltage!