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Volume flow sensor
Sensor input of the volume flow sensor (FS = - - - - -)
A pulse generator of the make
VIG....
can only be connected to
input S6. The following settings in the
sensor menu
are neces
-
sary:
S6 Sensor: VIG
Quotient: Liters per impulse
Range:
S6 = Volume flow sensor
input 6
EXT1 – EXT9 = External sensor (FTS....-DL) via
DL-Bus
- - - - - = no volume flow sensor -> fixed volume flow. The fixed
value will be used for the calculations of the heat meter.
Fixed flow rate
Volume flow in liters per hour. If no volume flow sensor was
specified, a fixed flow rate can be set up instead. If the assigned
output is inactive, the flow volume is assumed to be liters/hour.
Since speed control makes for a constantly shifting volume flow,
this setting is not suitable in combination with speed control.
(WE = 50 l/h)
Range: 0 to 20.000 liters/hours in 1 l/h steps
Assigned outputs
The specified/measured volume flow is only used for the calcula
-
tion of the heat quantity, if the output specified here is active (or
at least one of the several). (FS = none)
Options:
None = Heat quantity is calculated without
regard to output activity
Combination of all outputs (1-5)
Frost protection share
Share of anti-freeze agents in the heat transfer medium, specified
in percent. An average of all reputable anti-freeze producers has
been calculated and implemented as a table in dependence of
the mixing ratio. In typical cases, this method results in a maxi
-
mum error of one percent. (FS = 0%)
Range: 0 to 100% in 0.1% steps
Calibration value
The calibration value resulting from calibrating sensors.
(described in the following paragraphs)
Diff. incl. calibration
Current difference in temperature between flow and return sen
-
sors (incl. calibration). If both sensors are submerged together in
a container of water, (such that both measure the same tempera
-
ture), a difference of 0 should be displayed. As a result of mea
-
surement tolerance of the device and the sensors themselves, a
difference will be there nonetheless. If this display is set to 0, the
device saves the difference as a correctional factor and regards
this in future calculations to correct the natural measurement
error. A temperature of 40-60° in the water container used for cal
-
ibration is recommended.
This menu point offers a calibration possibility or the measure
-
ment of the difference in temperature in the heat meter. The cali
-
bration does not affect anything besides the heat meter.
Delete calib. values
Deletes calibration values.
Delete meter readings
The summed up meter reading are reset to 0 with this prompt.
Summary of Contents for UVR65
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