User manual

54 GMC-I Messtechnik GmbH
Device and Measuring Parameters
rAtE – Set Transmission and Storage Rate
The sampling rate specifies the time interval after which the
respective measured value is transmitted to the interface, or to
measured value memory.
Any one of the following sampling rates can be selected:
[mm:ss.
0 ] 00:00.1, 00:00.2, 00:00.5, 00:01.0, 00:02.0, 00:05.0
[h:mm:ss.
0 ] (h = hours, m = minutes, s = sec., 0 = tenths of a sec. )
0: 00:10 , 0: 00:20 , 0: 00:30 , 0: 00:40 , 0: 00:50 , 0: 01:00 , 0: 02:00 , 0: 05:00 ,
0:
10:00 , 0: 20:00 , 0: 30:00 , 0: 40:00 , 0: 50:00 , 01:00:00 , 02:00:00 , 03:00:00 ,
04:00:00 , 05:00:00 , 06:00:00 , 07:00:00 , 08:00:00 , 09:00:00 , SAMPLE , dAtA
(boldface: values or digits which are actually displayed,
plain: placeholders for unit)
Setting the Sampling Rate
1nFo  ...  store  ...  rAtE
rAtE set: 00:00.1 ... 00:00.5 ... 9:00:00 sample data

(00:00.5 = 0.5 s = default value)
The last selected value is retained, even after switching the instru-
ment off.
If the selected sampling rate is too short for the measuring function,
the smallest valid sampling rate is used automatically.
If a sampling rate is selected which is greater than auto power off time
(see APoFF parameter on page 51), the instrument is switched off
automatically after auto power off time has elapsed, and back on
again roughly 10 seconds before the next measuring point.
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.
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER