HERZ ETKF+
Page 13
Flashing Sequences and Maintenance:
Errorcode
Problem
Solution
Batterysymbol(
)
Battery voltage to low
Replace battery
F5
Temperature sensor defect
Replace device
Slowly flashing antenna
symbol (
)
Connection on to taught-in
components lost
Check the power supply and
the batteries of taught-in
components
Quickly flashing antenna
symbol (
)
“DutyCycle” limit reached
The device can resume radio
communication after a waiting
time of approx. one hour
The product is out of maintenance. Repairs are only by specialist. Clean the product with a soft,
clean, dry cloth. To remove heavier dirt, use a cloth which is slightly moistened with lukewarm
water. Do not use solvent-based cleaning agent, the plastic housing and the labels can be
attacked.
Information about radio operation
Radio transmission is performed on a non-exclusive transmission path, which means that there is a
possibility of interference occurring.
Interference can also be caused by switching operations,
electrical motors or defective electrical devices.
The range of transmission within buildings can differ greatly from that available in the
open air. Besides the transmitting power and the reception characteristics of the receiver,
environmental factors such as humidity in the vicinity have an important role to play, as
do on-site structural/ screening conditions.
Technical Characteristics
Supply voltage:
2x 1.5 V AAA, LR03 micro battery included,
typical life approx 2 years
Current consumption:
Max. 30 mA
Degree of protection:
IP 20
Ambient temperature:
5 to 50 °C
Radio frequency:
868.3 MHz
Receiver category:
SRD category 2
Typ. open area RF range:
100 m
Wireless solution for energy saving thermostatic head ETKF+
Room solution:
max. 1 wall the
max. 8 energy saving thermostatic heads ETKF+
max. 8 window
