Device description
Leuze electronic GmbH + Co. KG
LCAM 308
8
3.4
NFC tag
A dynamic IEC 15693 type 5 NFC tag is installed on the camera. Information stored on it, e.g. serial
number, software version, etc., can be read out by means of an NFC-capable reader (e.g. smartphone with
corresponding function).
For the position of please refer to Figure 3.1
The NFC interface is based on RFID and operates with a nominal carrier frequency of 13.56 MHz.
3.5
Optics
The camera used to record images and videos has a viewing angle of 62.2 ° horizontally and 48.8 ° verti
-
cally.
The focal length of the lens is 3.04 mm and the focal ratio is 2.
The built-in sensor is of the CMOS type, has a resolution of 8 MP and a sensor image area of
3.68 mm x 2.76 mm.
To avoid the image quality being affected by IR radiation, an IR cut filter is installed.
3.6
Heater
To reduce condensation in the camera lens area, especially in cold environments, a heater is integrated
in the camera, which can be activated via software interface if required.
The temperature in the heating area is controlled by a two-point regulator. Depending on the status of the
controller, the heating power has a nominal value of P = 0 W ("off") or, depending on the supply voltage
Vcc, P = Vcc
2
/50
("on", 18 V --> 6.5 W, 24 V --> 11.5 W, ...).
3.7
Display elements
Two LEDs on the front of the camera indicate the operating status. The Power LED lights up green, the
Status LED is multicolored.
NOTICE
The ethernet shield is capacitively connected to the supply ground via a 100 nF capacitor, oth
-
erwise there is no direct connection to the supply ground (V-).
NOTICE
The NFC tag is powered by the reader and thus readable even if the camera is not powered.
It can be used, for example, to check the IP address of a camera.
NOTICE
The NFC antenna of the reader used must be placed as close, flat and central as possible
above the NFC symbol of the camera (see Figure 3.1).
NOTICE
The focus is a fixed focus (object distance when adjusted for optimum sharpness: 1 m).
NOTICE
In order to avoid intolerably high temperatures in the event of a software-related loss of con
-
trol, a software-independent overtemperature shutdown for the heating unit is integrated in the
camera (shutdown value: 103 °C +/- 2.5 °C).
CAUTION
The specified shutdown value refers to the position of the overtemperature sensor in the heat
-
ing area, other areas may well be even warmer.
