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4-9 Test Leads Improper Connection Warning
The meter beeps as well as displays “ InEr” to warn the user
against possible damage to the meter due to test leads improper
connections to the
, or
input jacks when other function
(like voltage function) is selected. (Temperature measurement
function is an exception.)
Note:
“InEr” warning may be indicated due to weak battery even if the
test leads are connected properly.
4-10 Relative Measurement
Press the
△
REL button to activate the relative measurement
mode and
△
indicator turns on. The relative measurement
mode offsets the meter to disp lay relative values ag ainst
a reference. The meter d isp lays its read ing s sub tracting
the reading at the moment the
△
REL button is pressed.
Press
△
REL button again to exit the relative measurement
mode. This function works only on the main display.
4-11 Terms
Analog bar graph
Th e an al o g b ar g r ap h p r o vi d es a vi s u al in d i c ati o n o f
measurement like a traditional analog meter needle.
Average sensing RMS calibrated
RMS (Root-Mean-Square) is the term used to describe the
effective or equivalent DC value of an AC signal. Most digital
multimeters use average sensing RMS calibrated technique to
measure RMS values of AC signals. This technique is to obtain
the average value by rectifying and filtering the AC signal.
The average value is then scaled upward (calibrated) to read
the RMS value of a sine wave. In measuring pure sinusoidal
waveform, this technique is fast, accurate and cost effective.
In measuring non-sinusoidal waveforms, however, significant
errors can be introduced because of different scaling factors
relating average to RMS values.
⇒
USB Optical Communication Unit
(KB-USB7)
Optical Communication Unit Connection
4-8 PC (Personal Computer) Interface
The instrument equips with an optical isolated interface port at the
meter back for data communication. KB-USB7, dedicated USB
optical communication unit (separately available), and PCLink7,
dedicated software, allow you to transfer real time readings and
internally logged data to your PC. For more information, see the
"HELP" for PCLink7 (PC linkage software).
Note:
Intense light like the direct sunlight into the optical communication
unit on the back of the DMM increases the consumption current.
Mount the attached light shielding magnet cap on the optical
comminucation unit connector when not in use.