User's Manual

Hermos Technical Reports
Release 2.1 Page 11 of 22
4.1 Power Supply and Current Input
Description min type max unit
Voltage (proof against connecting to
the wrong terminal)
18 24 30 VDC
Current with/without presence sensor
(starting process excluded)
30 / 55 mA
Reading/writing impulse
rod antenna without/with presence
sensor
micro antenna without/with presence
sensor
160 / 185
140 / 165
mA
mA
Remark to the power supply:
During the starting process (charging of the capacitor in the input filter of the
device), you have to ensure that the power supply does not cut off the output
current. We recommend to use a power supply with stable current characteristic
up to 0V output voltage (for example our part-no. SVG2,5).
4.2 Additional Instruction for Use
Never expose the device to a intense change in temperature. Otherwise, water of
condensation can develop inside the device what can lead to damages.
Never bend or extend the antenna cable or expose it to other mechanical loads.