PowerTek 9010, User Manual

Page: 40 / 75

Reading on the display can be nulled at any time with NULL button. When Null function is active, LED
key NULL lit and symbol NULL is displayed in METER information field on the screen. To cancel
nulling function push NULL key again.
Multimeter function has direct access to several subfunctions. Push SELECT key until active window
Meter is selected. Meaning of soft keys beneath the display is changed. Soft keys enables fast access to
following functions:
- Smoothing Smoothing filter activation
- Scaling Allow to scale measurements relative to a reference value
- Statistics Statistical data can be displayed
- Limits Limits of band setting
- Range Auto or fix range selection
The function enables activation of smoothing filter and setting integration time in terms of number of
samples which are averaged. Set item Smoothing to ON to activate the filter.
The Scaling function allows recalculation of multimeter readings. Press Scaling softkey to set scaling
parameters:
- Scaling. Use this item to turn scaling ON. Scaling is automatically turned off after each meter
function change (for example changing from DCV to ACV).
- Function. „%“ shows relative value and „Scale“ shows absolute value, based on formulas
and .
- Gain, Offset and % Reference. Scaling formula parameters.
- Custom unit and Custom unit label. Custom unit with length up to 4 alphanumerical characters can
be defined. Use navigation buttons or rotary knob to enter requested letters, switch between
uppercase and lowercase using A ↔ a softkey and enable this feature by turning Custom unit ON.
Rel. value [%] = (reading - Reference) / Reference ∙100
Abs. value = Gain ∙ r Offset
Powertek MC9010 User Manual