3
Description
KNX I4-ERD evaluation unit
• Status: 15.03.2016 • Technical Changes and Errors reserved.
1.
Description
The
KNX I4-ERD evaluation unit
monitors ground temperature and humidity.
You can control an automatic watering system objectively with the data. Up to
four TH-ERD sensors can be connected to the evaluation unit. The two
KNX I4-ERD
threshold-value dependent switching outputs for humidity and temperature are avail-
able for each sensor channel.
KNX I4-ERD evaluation unit
receives external readings via the bus and reconciles
these to composite values with proprietary data. In this way, you can work with an
overall temperature or an overall humidity reading for each channel.
Functions:
•
Reception of
temperature and humidity information from
up to
four
external sensors
•
Composite readings
for each sensor channel variable from proprietary
measured and external readings (percentage variable)
•
2 switched outputs per channel
for temperature and humidity, with
adjustable thresholds (thresholds are set optionally by parameters or 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.
1.1. Deliverables
•
Evaluation unit in series installation housing
You will
additionally
require (not included in scope of delivery):
•
TH-ERD sensors (no. 70312), 1-4 units
1.2. Technical data
Housing
Plastic
Colour
White
Assembly
Series installation on mounting rail
Protection category
IP 20
Dimensions
approx. 107 x 88 x 60 (W x H x D, mm), 6 modules
Weight
approx. 300 g
Ambient temperature
Operation -20…+70°C, storage -55…+90°C
Ambient humidity
max. 95% RH, avoid condensation
Operating voltage
230V AC, 50 Hz
Power consumption
approx. 1.6 W without sensors,
approx. 2.8 W with 4 sensors
Power
on bus: 10 mA
