PROMAT CM 100 Mode D'emploi page 27

Explanation of buttons
1) Measuring transformer, tong jaws
2) LED lamp
3) Housing
4) Jaw opening handle
5) Select button
6) Min/Max switching
7) Auto/Manual switching
8) Display
9) COM socket
10) INPUT socket
11) Hz/Duty switching
12) DATA-HOLD and background lighting/LED
13) Rotary selector switch
14) OFF switch position
15) Polarity
SEL button
Used for the zero setting for DC current measurement (ZERO on the display).
Continue to change between different functions e.g. , continuity.
A momentary peep tone confirms pressing the button.
MIN/MAX button
Press the MIN/MAX once or more times to display the maximum or minimum value measured,
or the difference between both.
RAN button
Press the button to switch between Auto range and manual range switching.
Hz/% button (in A or V measurement range)
To switch between Hz and duty cycle measuring.
The Duty-Cycle indicates the relationship between the length of the status when switched on
(duration of impulse) to the duration of the period (pulse width modulation) for a square wave
signal. The duty cycle is specified as a dimensionless ratio with a value from 0 to 1, or as a
percentage from 0 % to 100 %.
B.L. / HOLD button
Press the B.L./HOLD button to freeze the value displayed at present.
Press and hold the B.L./HOLD button to switch on the background lighting.
Setting on the current range also switches on the lighting at the measurement point.
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