7
Graphic presentation of measurement history information
Temperature measurement trend display:
Press OK at a temperature measurement, a trend display will appear
for that measurement.
Use the control knob to browse measurement history. The exact
measurement and time and date will appear at the top edge of the
display next to the cursor. As a factory setting, temperatures are sa-
ved every ten minutes (=600 s). Press OK to alternately zoom in or
zoom out the trend display. In case sampling interval is 10 minutes
(600 s), the distance between the vertical lines is either 10 minutes
or 1 hour. In this case, the controller’s memory contains history in-
formation from the last 10 days. You may change trend sampling in-
terval if you wish (Device settings -> Measurement channel settings,
p. 23) Press ESC to exit the trend display.
Use the trend display to easily monitor, e.g., temperature drops and
room temperature levels. You can also check outdoor temperatu-
res from the trend.
Basic menu -> Measurements -> Press OK at measurement information
H1-supply water 28.01 08:26:19 [ 34.7 °C ] ( 5 h )
38
28
The controller automatically flushes and calibrates the valve
once a week on (as a factory setting Monday at 08 am). The
controller first completely closes the valve and then if the
flush function has been taken into use it opens it to the flush
position and then to the position determined by the control-
ler (see Device settings > Valve flushing, p. 35)
Automatic scaling according to the measured tempe-
ratures (28 ... 38°C in the example).
H1 Supply water temperature curve
Inspection moment (use the control knob to select the moment)
Supply water temperature (34.7 °C)
at the selection moment
H1 Supply water 28.01 08:26:19 [
34.7
] (5 h )
38
28
The length of
the time period
on the display
You may download a trend file from EH-800 device to your pc via
controller web page and examine the trend chart on your pc display.
You may use Ouman Trend software to look at a trend file as a chart.
Go to www.ouman.fi to download the software.
Содержание EH-800
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