Sthor 81772 Manual Original página 12

Function
Resistance
MULTIMETER OPERATION
Safety instructions
Do not operate the meter in an atmosphere with excessive humidity or in the presence of toxic or fl ammable
vapours, or in an explosive atmosphere. Before each use, check the condition of the meter and the
measurement cables. In case of noticing any faults, do not start operation. Replace damaged cables with new
ones, free from defects. If in doubt, contact the manufacturer. During measurement, hold the measurement
cables (tips) only by the insulated sections. Do not touch the measurement points or unused jacks of the meter.
Disconnect the measurement cables before changing the measured quantity. Never carry out maintenance
work without ensuring that the measurement cables have been disconnected from the meter and that the meter
itself has been turned off .
Replacing the batteries
The multimeter requires batteries, the number, and type of which are defi ned in the technical data section. It
is recommended to use alkaline batteries. To install the batteries, open the instrument housing or the battery
compartment cover on the underside of the meter. Before accessing the battery compartment, it may be
necessary to remove the cover on the meter housing. Connect the batteries according to its terminal marking
and close the housing or battery compartment cover. If a battery symbol appears on the screen, the batteries
must be replaced. To ensure measurement accuracy, it is recommended to replace the batteries as soon as
possible, after the battery symbol appears.
Switching the meter on and off
To switch the meter on, press and hold the power button for approx. 2 seconds. To switch the meter off , press
and hold the power button for approx. 2 seconds. The meter will turn off automatically, if not in use. After about
15 minutes of inactivity, the meter will turn off automatically. This will reduce battery consumption. The user will
be notifi ed by a sound signal, approximately one minute before the power supply is turned off .
H button / *
A single press of the button retains the value currently shown on the display. In this case, the display shows the
H symbol. Pressing the button for approx. 2 seconds activates the display illumination. Press the button again
and hold it for approx. 2 seconds to turn off the display illumination.
NCV button
The meter has an NCV function, meaning it can perform non-contact AC voltage tests using the induction
(non-contact) method. The meter detects voltage in an insulated cable by means of an NCV sensor located on
the front of the device. To use the NCV function, disconnect the cables from the meter, and press and hold the
NCV button during test. Place the NCV sensor near the insulated cable. The higher the voltage, the faster the
indicator light will illuminate and a sound signal will be emitted. A single press of the button activates the LED
light, while another single press of the button turns the LED light off .
Connecting the measurement cables
12
Range Resolution
6.000 kΩ
60.00 kΩ
600.00 kΩ
6.000 MΩ
60.00 MΩ
O R I G I N A L
EN
Accuracy
0.001 kΩ ± (1.5% + 3)
0.01 kΩ
± (0.5% + 3)
0.1 kΩ
0.001 MΩ
± (1.5% + 3)
0.01 MΩ
I N S T R U C T I O N S
Maximum
60.00 MΩ