Metrix MX 57 EX - Functional Description; SEL;ON Key and Measurement Flowcharts

X02137C00 - Ed. 1 - 06/07 Chapter II
Intrinsically safe portable digital multimeter
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4. FUNCTIONAL DESCRIPTION
4.1. SEL/ON key
This can be used to switch on the multimeter again after an automatic shutdown. It can also
be used to access secondary functions associated with the selector switch positions.
The flowcharts below define these various functions.
4.1.1. V
AC
position
4.1.2. V
DC
position
dBm measurement
SEL/ON
SEL/ON
AC voltage measurement
E LECTRICAL S PECIFICATIONS OF I NTRINSICALLY S AFE C IRCUITS
U ≤
≤≤
≤ 60 V (peak value)
E LECTRICAL S PECIFICATIONS OF I NTRINSICALLY S AFE C IRCUITS
U ≤
≤≤
≤ 60 V (peak value)
SEL/ON
SEL/ON
AC+DC voltage measurement
DC voltage measurement
Resistive power measurement