Table of Contents
Advertisement
4. Introduction
tion is provided for humidity sensors, dynamic pressure sensors, and O
sen-
2
sors. On infrared sensors the parameters for zero-point correction and gain
correction are used as the background temperature and the emissivity factor.
Maximum and minimum values
Each measuring operation acquires and stores the maximum and minimum
values with date and time-of-day. Each of these values can be output, used as
function channel, or deleted.
Average value
Manual averaging is available per channel over a certain period or cycle or
over a series of individual measurements.
4.1.3 Process control
To record the measured values from all connected sensors in digital form
measuring point scanning is performed continuously with measured value out-
put according to a time-based process control. This may be per output cycle
or, if really rapid results are required, per measuring rate. The measuring op-
eration can be started and stopped by means of a key, the interface, an exter-
nal trigger signal, the real-time clock, or a limit value being exceeded.
Date and time-of-day
All measuring operations can be accurately logged using the real-time clock
with date function or in terms of the pure measuring time. For the purposes of
starting / stopping a measuring operation, the start / stop date and time-of-day
and / or the actual measuring duration can be programmed.
Cycle
The cycle can be programmed to any value between 00:00:01 (1 second) and
59:59:59 hh:mm:ss. This function permits cyclic output of measured values to
the interfaces or to the memory and provides cyclic calculation of the average
value.
Print cycle factor
The print cycle factor can be used to limit data output from particular channels;
this may be necessary in order to reduce excessive data flow especially during
data storage.
Averaging over measuring point scans
The measured values from measuring point scans can be averaged either
over the whole measuring duration or over the specified cycle. Function chan-
nels are available for the cyclic output and storage of these average values.
Measuring rate
The available measuring rates are 2.5, 10, 50, or 100 measuring operations
per second (100 being subject to certain restrictions). Recording can be accel-
erated if all measured values are stored to memory and / or output to the inter-
face at the full measuring rate.
11
Advertisement
Table of Contents
