3
Description
Sensors Intra-Sewi KNX T and Intra-Sewi KNX TH
• Version: 11.06.2018 • Technical changes and errors excepted.
1.
Description
The
Sensors Intra-Sewi KNX T and Intra-Sewi KNX TH
for the KNX building bus
system measure the ambient temperature.
Intra-Sewi KNX TH
additionally captures
the air humidity and calculates the dew-point. Via the bus, the indoor sensors can re-
ceive external values of temperature or humidity and process them further with their
own data to a total value (mixed value, e.g. room average).
All measurement values can be used for the control of limit-dependent switching out-
puts. States can be linked via AND logic gates and OR logic gates. In addition, an inte-
grated actuating variable comparator can compare and output variables that were re-
ceived via communication objects.
An integrated PI-controller controls a heating/cooling (according to temperature).
In-
tra-Sewi KNX TH
offers a second controller for ventilation (humidification/dehumid-
ification according to humidity) and a warning can be output to the bus as soon as the
comfort field, as per DIN 1946, is left.
•
Measuring the
temperature
, with
mixed value calculation
. The share of
internal measurement value and external value can be set as a percentage
•
Threshold values
can be adjusted per parameter or via communication
objects
•
PI-controller for heating
(one or two-stage) and
cooling
(one or two-stage)
according to temperature. Regulation according to separate setpoints or basic
setpoint temperature
•
4 AND and 4 OR logic gates
, each with 4 inputs. All switching events as well
as 16 logic inputs (in the form of communications objects) can be used as
inputs for the logic gates. The output of each gate can be configured optionally
as 1-bit or 2 x 8-bit
•
2 actuation variable comparators
to output minimum, maximum or
average values. 5 inputs each for values received via communication objects
Intra-Sewi KNX TH additionally:
•
Measuring the
air humidity
(relative, absolute), with
mixed value
calculation
. The share of internal measurement value and external value can
be set as a percentage
•
Bus message, whether the values for temperature and air humidity are within
the
comfort field
(DIN 1946)
•
Dew point
calculation
•
PI controller for humidity
according to humidity: Ventilate/Air (one-stage) or
Ventilate (one or two-stage)
Configuration is made using the KNX software ETS. The
product file
can be down-
loaded from the Elsner Elektronik website on
www.elsner-elektronik.de
in the “Ser-
vice” menu.
1.0.1. Scope of delivery
•
Sensor
•
Pre-assembled clamps for false ceiling installation
Summary of Contents for Intra-Sewi KNX T
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