Elma Instruments 3037, Руководство пользователя

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Elma 3037/3039
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Data hold
Push the button to freeze the present value in the displat. ”Hold”
is shown in the display.
The display will flash continuously if the measured signal is 50
counts larger than the display reading. However, it cannot detect
across the AC and DC Current.
Push the button to return to normal mode.
DCA Zero (Only Elma 3039)
Push the button >2s to zero adjust.
Inrush current
Push the button for >1s until ”INRUSH” is shown in the display.
When the current exceeds 5A the instrument calculates the RMS
value for 100ms.
Low pass filter
When measuring AC, push the button to enable Low pass filter.
”LPF” is shown in the display. The cut-off frequency is about
160Hz.
Backlight on/off
Push briefly the button to turn off/on the display light.
Voltsense
Push the button briefly to enable voltsense. The number of
dashes displaying on the LCD indicates the electric field intensity. If
no indication, voltage could still be present.
Battery replacement
Loosen the screw in the battery cover and remove the cover.
Change the batteries and fasten the battery cover.