METREL MD 9272 User Manual

MD9272 Leakage Clamp TRMS Meter with Power Function Instrument Description
7
Table 1. Keyboard
Key
Use
Function
F – Function
Any position of the
rotary switch
Function selection key. Depending on the
rotary switch position, the functions will
vary, (refer to section 3).
Pressing this button cycles through the
various functions.
Hz
A and V, in the
RMS function only
Pressed for more than 2 s, alternates the
second display information from THD to
Hz.
H – Hold
Any position of the
rotary switch in all
the functions
except in PEAK
function
When pressed the data switch retention
mode is accessed and the screen
information is not updated. Pressed
again, the MAX mode is accessed for the
register of maximum values.
Next pressed, the MIN mode is accessed
for the register of minimum values.
Pressed again returns to the normal
mode.
Light
Any position of the
rotary switch, in all
the functions
With a long press of the key (more than 2
s) the LCD screen retro-illumination is lit
up. 30 s after any button was pressed, it
switches off automatically.
Auto
A and V, in the
RMS function only
Cycles through the different manual
ranges until the Autorange is active again.
+
A and V in the
harmonic
measurement
function
Increase the number of harmonic to be
measured.
AC/DC
V, in the RMS
function only
Alternates between V a.c. or V d.c.
measurements.
-
A and V in the
harmonic
measurement
function
Decreases the number of harmonic to be
measured.
Table 2. Rotary switch positions
Position
Function
OFF
OFF position.
A
Measurement of a.c. current up to 100 A.
V
Measurement of a.c. or d.c. voltage up to 600 V.
W
Measurement of power of up to 60 kVA, with limits of 100 A
and 600 V.

METREL MD 9272 Specifications

General

Brand	METREL
Model	MD 9272
Category	Measuring Instruments
Language	English