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Sensor type
Solar collectors reach standstill temperatures of 200 to 300°C. No value above 200°C is
expected due to the sensor installation point and physical properties (dry steam does not
conduct heat well, for instance). The standard PT1000 series sensors can be permanently
exposed to 250°C and briefly to 300°C. KTY sensors are designed for brief use at 200°C.
The SENSOR menu enables changing over of the individual sensor inputs between PT1000
and KTY types.
As default factory setting all inputs are set to PT (1000) type.
PT, KTY Temperature sensors
GBS Radiant sensor GBS - non-standard accessory (can be used for the start func-
tion)
S3 25 Fixed value: e.g. 25°C (using this settable value instead off measured tempera-
ture)
Setting range: -20 to +149°C in increments of 1°C
S3 S1 Transfer of values. Instead of a measured value the input S3 receives its (tem-
perature) information from input S1. A mutual allocation (in this example also:
S1 S3) in order to link information is not admissible.
In addition it is possible to assign values from external sensors (E1 to E6).
DIG Digital input: such as when a volume flow switch is used.
Input short-circuited: Display: D1
Input interrupted: Display: D0
OFF The sensor is not displayed on the main level
VTS Vortex sensor (electronic volume flow encoder) temperature signal
VF2 Vortex sensor (electronic volume flow encoder; contact-free measurement of
the volume flow) volume flow 2-40l/min. Only on input 3
VSG Volume flow encoder (pulse encoder): Only on input 3, to read-in the pulses
from a volume flow encoder (determination of the flow rate for the heat quantity
counter)
A 5V output (control output) is available for the power supply to the electronic volume flow
encoder.
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