Extech Instruments 7630, Operation Manual, Page: 69 / 120

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State 7
：
S1
：
OPEN
、
S2
：
A
、
S3
：
CLOSED
State 8
：
S1
：
OPEN
、
S2
：
B
、
S3
：
CLOSED
4.3.3.6 Meas. Device Setting
Please use the up and down arrow keys or the ENTER key and scroll the highlighted area to
the
Meas. Device parameter. The display will appear as follows:
The Measuring Device is an impedance circuit that simulates the human body. The
Measuring device is specified differently for different agencies, applications and specifications.
Repeatedly pressing the Measure Device soft key will allow you to select one of the many
measuring devices listed in the table below. The table below indicates the available
measuring devices and the appropriate agency standard to which it correlates.
Cross Reference
Letter GPIB / RS-232
Command Agency Specification Application
MD1 EM4 (U2)
EM5 (U1)
IEC60990(Fig 4 U1 & U2)
、
IEC60598-1
、
IEC60950-1
、
IEC60065
、
IEC61010
、
IEC60335-1
Weighted Touch Current,
Luminaries, Information Technology,
Audio & video, Laboratory Equipment,
Safety of household
MD2 EM6 (U3)
EM7 (U1)
IEC60990(Fig 5 U1 & U3) , IEC60598-1
MD3 EM2 IEC60601-1 Medical Equipment.
MD4 EM1 UL544P Medical Equipment.