GW Instek GDM-8246 User Manual User Manual

Page 12

DUAL DISPLAY DIGITAL MULTIMETER

USER MANUAL

5-10. HOLD and AUTO HOLD measurements

The HOLD mode can keep the measured value on the primary

display. Press [HOLD] button, the last reading is held on the display

in all function. To release the HOLD function, just press [HOLD]

again.

The AUTOHOLD mode allows you to keep your eyes fixing on the

probes when taking measurements in difficult or hazardous

circumstances, then read the display when it is convenient and safe.

Press [SHIFT][AUTOHOLD] in sequence into AUTOHOLD mode,

every time when the value is more than the 8% of full scale, and

with 200 counts of different value compared with the previous

AUTOHOLD value, the data on the primary display will be updated.

In the AUTO range mode, when the value is less than 10% full

scale and more than 0.8% full scale, it will change range downward

automatically. If want to release AUTOHOLD function, press

[SHIFT] [AUTOHOLD] in sequence.

5-11. COMPARE MEASUREMENT

In Compare mode, can set the maximum and minimum value to

compare with the current measured value. The secondary display

will show “Hi” when the measured value is more than the

maximum value, will show “Lo” when the measured value is less

than minimum value, and will show “Pass” in other status. The

functions of DCV(DCmV), ACV(ACmV, AC+DC), DCA(DC20A),

ACA(AC20A), OHM, and Capacitance have their own maximum

and minimum value setting separately according to the procedure as

follows:

DUAL DISPLAY DIGITAL MULTIMETER

USER MANUAL

1) Select the required function and range, set maximum or

minimum value by pressing [SHIFT][SET] and [HI] or [LO] in

sequence. Now the panel is displaying the current setting value,

if the setting value is more than 50000 counts, the panel will

display 60000.

2) The flickering digits can be adjusted by pressing [▲] to set the

value, and pressing [▼] to move the adjusted position. Also

can adjust the plus and minus sign through [▲] and [▼].

3) When the setting is completed, press [ENTER] to save the

setting, or press [SHIFT] to cancel the setting.

5-12. RIPPLE MEASUREMENT

The RIPPLE mode can monitor DC level and AC ripple of power

supply. In DCV voltage function, set to RIPPLE mode by pressing

[SHIFT][RIPPLE] in sequence, the primary display will show DCV

value with the ranges of 5V, 50V, and 500V, the secondary display

will show AC component of signal with the range of 500mVac,

100kHz frequency response. The function is easy to detect DC and

AC components of signal simultaneously.

If want to leave the RIPPLE mode, just switch to other main

function.