Cenelec Directives - Elma Instruments Bm22S Bedienungsanleitung

To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. To
avoid electrical shock hazard, observe the proper safety precautions when working with
voltages above 60 VDC or 30 VAC rms. These voltage levels pose a potential shock hazard to
the user. Do not touch test lead tips or the circuit being tested while power is applied to the
circuit being measured. Keep your fingers behind the finger guards of the test leads during
measurement. Inspect test leads and probes for damaged insulation or exposed metal before
using the instrument. If any defects are found, replace them immediately.
Electrical Symbols
International
!
Caution ! Refer to the explanation in this Manual
Caution ! Risk of electric shock
Earth (Ground)
Double Insulation or Reinforced insulation
Fuse
AC--Alternating Current
DC--Direct Current
3)

Cenelec Directives

The instruments conform to CENELEC Low-voltage directive 2006/95/EC and Electromagnetic
compatibility directive 2004/108/EC
4)
operation
Note: All function operations described hereafter are via the Red test lead for positive (+)
polarity and Black test lead for Ground reference (-), or otherwise specified
4-1) Functions in "Auto V.Ω" Position (BM25a only)
-Quick Start (BM25a only)
mode is the default function in "Auto V.Ω" position. Press the SELECT button
AutoCheck TM
momentarily to select and step through the functions:
AutoCheck TM →Continuity→EF→ACV→DCV→
-AutoCheck TM mode (BM25a only)
This innovative AutoCheck
or Resistance (Ω) based on the input via the test leads.
●With no input, the meter displays "Auto" when it is ready.
●With no voltage signal but a resistance below 6MΩ is present, the meter displays the
resistance value.
●When a signal above the threshold of DC 1.2V or AC 1.5V up to the rated 600V (450V for
BM25a) is present, the meter displays the appropriate voltage value in DC or AC, whichever
larger in peak magnitude.
●Overload-Alert Feature: When above rated 600V (450V for BM25a) is present, the meter
displays "OL" with a warning beep tone. Disconnect the test leads from the signal immediately
to avoid hazards.
Note:
*Range-Lock Feature: When a measurement reading is being displayed in AutoCheck
mode, press the SELECT button momentarily 1 time can lock the function-range it was in. The
LCD annunciator "
Press the SELECT button momentarily again to return to AutoCheck
*Hazardous-Alert: When making resistance measurements in AutoCheck
unexpected display of voltage readings alerts you that the part under test is still energized.
*AutoCheck TM
nominal input impedances are slightly lower than that of common digital
Elma 22s – 25a
Ω
TM feature automatically selects measurement function of DCV, ACV
" turns off. Range-lock can speed up repetitive measurements.
→Hz→Cx→AutoCheck
TM
TM
TM
mode.
TM
mode, an
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