Bedienungsanleitung Gossen Metrawatt METRAHIT ULTRA BT (Seite 54 von 74) (Englisch)

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54 GMC-I Messtechnik GmbH

Device and Measuring Parameters

Storage of Individual Values using the SAMPLE or dAtA Sampling Rate

If only manually selected values need to be saved, SAMPLE must

be selected as the StorE > rAtE sampling value. If memory mode

operation is then started, a single measured value is saved to per-

manent memory with time stamp when the DATA/MIN/MAX key is

pressed and held until two rapidly repeating acoustic signals are

generated.

If dAtA is selected as the StorE > rAtE sampling rate, and if mem-

ory mode operation is then started, measured values ascertained

with activated DATA function are automatically saved to perma-

nent memory with time stamp.

triG – Trigger Conditions (parameters for memory mode operation)

The StorE > triG SEt = Sto-ou / Sto-in / OFF setting can be used

to specify how measured value recording is started and stopped:

• triG = off: Recording is started with Store > Start and ended

with Store > Stop.

• triG = sto-ou: Recording is started as soon as a measured value

occurs which is outside of the selected measuring limits, and is

stopped as soon as the measuring limits are once again com-

plied with, or the selected recording period has elapsed.

• triG = sto-in: Recording is started as soon as a measured value

occurs which is within a specified band, and is stopped as

soon as this is no longer the case, or after the maximum re-

cording period has elapsed.

The band is specified with the help of the L_triG lower limit and

the H_triG upper limit. Querying takes place in the event that

triG OFF is selected. Bandwidths are specified in digits and de-

fined by the measuring range limit, which, in the case of DC for

example, corresponds to 300,000 (–300,000 to +300,000). In

measuring functions with a small measuring range span (e.g.

V AC with 30,000 digits), it is not useful to set the trigger thresh-

old above this measuring range span. It’s thus advisable to perform

measurement with a fixed measuring range. Due to the fact that

rapid momentary value acquisition (see section 4.5.1) has a large

measuring range span, limit values of greater than 30,000 digits

can be selected.

Actual measurement is always executed using the sampling rate

selected in “Store > rAtE”.

1nFo

 ...  store  ...  trig

trig set : sto-ou / sto-in / off



l_trig set : -150000 ... +150000



h_trig set : -150000 ... +150000



tStorE – Recording Time (parameter for memory mode operation)

This parameter determines whether or not measured values will

be recorded for a limited time only. If recording time will be limited,

its duration can be entered in hours, minutes and seconds. “On”

means unlimited recording time.

1nFo

 ...  store  ...  t .store

t .store set : on /99:00:00 (hh:mm:ss)



After completion of the recording time t.StorE, the end of the stor-

age process is signalled by 2 short acoustic signals (as from firm-

ware version V1.14).

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

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