Sonel CMM-60, User Manual

Page: 59 / 116

CMM-60
– USER MANUAL
57
7.1.2 Recording PEAK values
From MENU the following modes are available:

PEAK
– displays the peak value of the measured, if it lasts
more
than 1 ms .

CF (Crest Factor)
– crest factor signal according to the following
formula:
sk
X
X
CF
max

where:
X
max
– peak value
X
sk
– RMS value
7.1.3 Relative measurement - REL
This mode enables a measurement relative to a stored reference value.
The displayed main result is the difference between the reference value (read-out at the moment of
activating REL mode) and the current read-out. Example: if
the reference value is 20 A , and the cur-
rent reading is 12.5 A , then the main result on the display will be -7.5 A . If the new reading is identical
to the reference value, then the result will be zero.

From MENU select REL mode,

Current readings are presented as a deviation relative to the reference value

Use F3 to switch between reference units:

unit of the selected measurement function

%.
7.1.4 Mode: Hz,%,ms
This mode displays the frequency of the pulse filling indicator.

From MENU select mode: Hz,%,ms ,

Use F1 F2 buttons to select:

Hz,% displays the frequency and pulse filling indicator in %

ms displays frequency and pulse width in ms
Note:
This mode is only active for current measurement
(except for 4~20mA% function) and voltage
7.2 HELP
Each measurement screen is provided with "Help" in English.

Press F3 to select HELP .

Use arrows or commands PREV/NEXT to scroll the help text to the desired location.

Help contains a description of:

functions MENU, SAVE, SETUP,

OL controls , batteries, sound,

RANGE, HOLD, MAX/MIN buttons, arrows,

CLOSE - closes the help.

When the help is active, the top bar of the display shows the current meter reading.