FINE INSTRUMENTS CORPORATION FINEST 135, User Manual

5.11 Using Soft

SOFT

AUTO

AC

Observe that SOFT is displayed 

 pressing the SOFT

CREST pushbutton once. This SOFT mode digitally displays
a 

 of readings over 

 interval to

reduce the 

 of the readings. The bar graph is 

affected by this SOFT function and updates 20 times 

SOFT function 

 be used for ampere readings or voltage

readings.

Press the SOFT CREST pushbutton twice when in the 

AC

or DC amperes mode, or once when in the voltage mode,

in 

 to exit SOFT.

5.12 

Using Crest

AUTO

AC

Observe that PEAK is displayed 

 pressing the SOFT

CREST pushbutton twice. PEAK is available for AC ampere
readings only and 

 not be selected when in the other

modes.

 the digital display and bar graph measure the halfcycle

peak AC amperes when PEAK is displayed.

The 

 of a waveform is the ratio of its half-cycle

peak amperes   its rms amperes.

Crest 

Half-Cycle Peak Amperes

RMS Amperes

The Crest 

 is a nominal 1.414 for linear 

 flow

without 

 wave 

 Crest 

 other than

1.414 indicate the presence of 

 (See

6.1 Non-Linear Loads.)

Press the SOFT CREST pushbutton once   exit CREST.
Then. PEAK is no longer displayed.

5.13 Enabling 

AC

RECORD

0

1

To enable RECORD, press the MIN MAX pushbutton. The

 RECORD   displayed. The recording of a new 

imum or 

 by beep 

 We 

 use

RECORD in all modes of this Meter, but we 

 not 

Meter modes while in RECORD, for example, from voltage

 amperes.

In the AC amperes mode, the bar graph displays the rms
value of 

 flow and also blinking 

 at the 

ed MAX and MIN. 

 in the frequency mode, the bar graph

displays the rms value of 

 flow only. No 

Pointers.

In SOFT, the softened values of rms 

 flow, frequency

or voltage   

 for MAX, MIN, and AVG. The bar

graph displays instantaneous values of rms 

ing 

 for MAX and MIN.

In CREST 

 is, 

 mode, the half-cycle peak amperes

are 

 for 

 CREST 

 and AVG are not

available. The bar graph displays a 

 blinking 

for MAX. The CREST (that is, 

function is not 

 in 

 other (V or Hz or   modes.

To stop recording, use the HOLD pushbutton. Then,

RECORD no longer blinks, and the 

of MAX, MIN, and

AVG are frozen. Press the HOLD pushbutton again   restart

recording, when the values of 

MAX, MIN, 

and AVG are not

reset. The recording simply 

 again from where it 

 off.

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