Instructions

52
e) Hz% Function, Frequency Measurement (electrical)
The voltage and current measurement ranges are occupied with subfunctions for frequency measurement. These
measuring functions require a signal level of >200 mVrms and have a bandwidth of up to 400 Hz. They are therefore
suitable for mains voltage.
Tomeasurethefrequencyofthecurrentorvoltagesignal,pushthebutton“Hz%”.Thedisplayshowsthefrequency
inHz.Toswitchthedisplay,pushthebutton“Hz%”again.
Pulse Ratio “Hz%” Function
Ifyouwouldliketodisplaytheratioofthepositivetothenegativehalfwaveinpercent,pushthebutton“Hz%”twice.
Thedisplayshowstheratioofthepositivehalf-waveinpercent.Toswitchthedisplay,pushthebutton“Hz%”again.
f) HOLD Function
The Hold function keeps the currently indicated measured value in the displays to allow you to read or record it easily.
If you test live wires, make sure that this function is deactivated before the measurement starts.
Otherwise, the measurement will be incorrect!
ToswitchontheHoldfunction,pushthe“HOLD”button;asignalsoundconrmsthiscommandand“H”appearson
the display. The bar chart remains active and displays the voltage curve.
InordertoswitchofftheHoldfunction,pushthe“HOLD”buttonagainorchangethemeasurementfunction.
g) Display Illumination
The multimeter automatically recognises the brightness in the environment via a light sensor and switches on display
lightingautomaticallywhentheDMMison.Thisautomaticfunctionisdisplayedbythesymbol“BL”.Itcanbedeacti-
vated via the lighting button and remains deactivated until switched off via the dial switch. This automatic function
is activated again at the next activation.
h) LED Lamp
A white LED lamp (K) is integrated at the rear of the device. The lamp is switched on and off via the button with the
torch icon. Every push of a button will switch the lamp on or off again.
The lamp remains on until switched off manually via the button, until the meter is switched off via the dial switch (OFF)
or the device is deactivated automatically after approx. 15 minutes.
i) Automatic Power-Off
The DMM turns off automatically after approx. 15 minutes if no button or rotary switch is operated. This function
protects the battery, saves battery power and extends the operating time. The active function is displayed with the
symbol “ “ in the display.
To reactivate the DMM after automatic deactivation:, use the dial switch or push any button (apart from the two lighting
buttons).
Automatic deactivation can be deactivate manually.
Switchoffthemeter(OFF).Keepthebutton“SELECT”depressedandSwitchontheDMMattherotarycontrol.The
“ “ symbol is not visible. Automatic switching off remains inactive until the meter is turned off via the rotary control.