![background image](http://html.mh-extra.com/html/elsner-elektronik/intra-sewi-knx-l-pr/intra-sewi-knx-l-pr_installation-and-adjustment_2396696007.webp)
7
Description
Sensors Intra-Sewi KNX TH-L-Pr and Intra-Sewi KNX L-Pr
• Version: 30.08.2018 • Technical changes and errors excepted.
1.
Description
The
Sensor Intra-Sewi KNX L-Pr
for the KNX building bus system captures bright-
ness and motion in rooms.
The
Sensor Intra-Sewi KNX TH-L-Pr
additionally
measures the temperature and the
air humidity and calculates the dew-point. Via the bus, the indoor sensor can receive
external values of temperature and humidity and process them further with its own
data to a total value (mixed value, e.g. room average). Integrated PI-controllers control
ventilation (humidification/dehumidification according to humidity) and heating/cool-
ing (according to temperature).
The
Sensor Intra-Sewi KNX TH-L-Pr
can output a warning to the bus as soon as the
comfort field, as per DIN 1946, is left. Actuating variable comparators can compare and
output variables that were received via communication objects.
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.
Functions:
•
Brightness measurement
with
brightness control
•
Motion detection
•
Threshold values
can be adjusted per parameter or via communication
objects
•
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
Additional functions Intra-Sewi KNX TH-L-Pr:
•
Measuring the
temperature
and
air humidity
(relative, absolute), each 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 heating
(one or two-stage) and
cooling
(one or two-stage)
according to temperature. Regulation according to separate setpoints or basic
setpoint temperature
•
PI controller for humidity
according to humidity: Ventilate/Air (one-stage) or
Ventilate (one or two-stage)
•
2 actuation variable comparators
to output minimum, maximum or
average values. 5 inputs each for values received via communication objects
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
Summary of Contents for Intra-Sewi KNX L-Pr
Page 2: ......
Page 6: ...6 Clarification of signs ...