HND-P210
HND-P210 K08/0422
page 9
SEt
CLOC
Set Clock: Setting Of Real Time Clock
CLOC
HH:MM
Clock
: Setting of time hours:minutes
dAtE
TT.MM
Date
: day.month
YEAr
YYYY
Year
Note: If the logger memory contains data already, the
menues/parameters marked with (*) cannot be invoked! If these
should be altered the logger memory has to be cleared before!
(key 6, see chapter
8.6 Operation Of Logger
)
8.4.1
Different Kinds of Measuring: “rAtE-Slo, -P.dEt, -FASt”
Three different kinds of measuring pressure are supported. Two of them (P.dEt
and FASt) are working with high measuring frequency of more than 1000
measurings per second.
8.4.1.1
rAtE-Slo:
Standard Measuring
Measuring rate 4Hz, averaging and filter functions are active.
Application: Measuring of slowly changing or static pressures, eg. measuring of
leakproofness, atmospheric pressure...
Highest accuracy, high noise immunity (EMI and unstable measuring signals),
low power consumption.
8.4.1.2
rAtE-P.dEt:
Peak detection
Measuring rate >1000Hz, the value is displayed unfiltered.
Application with logger function: Measuring of short pressure peaks or fast
changing pressures with a resolution of <1ms. The cyclic logger function records
the arithmetic mean value, the highest and the lowest peak of the referring time
interval.
Attention: higher power consumption, measuring is sensitive to noise (EMI,..)
8.4.1.3
rAtE-FASt:
Fast filtered measuring
Measuring rate >1000Hz, the value is filtered slightly (higher noise immunity than
P.dEt., small peaks will be filtered out), apart from that identical behaviour like
P.dEt.
8.4.2
Averaging Function
The averaging function concerns the display values (LCD and interface). It is
completely independent from the averaging of the logger function, please don’t
mix them up!
The averaging integrates the measuring values during a selectable period of time
and then calculates the average display value. It is independent from the selected
kind of measuring (slow, fast, peak detect). As long as not enough values are
collected (selected averaging time) to calculate a average value, the upper
display shows “----“, the lower display a ‘countdown‘.
During an active low-power-logging procedure the averring is always deactivated
Function of min/max-value memory during averaging:
