Technical data
Leuze electronic GmbH + Co. KG
BCL 308
i
33
5.1.3 Line / raster scanner with deflecting mirror
Technical data same as for line scanner without heating, however with the following differences:
5.2
Heating models of the bar code readers
The BCL 308
i
bar code readers are optionally available as models with integrated heating. In this case,
heating is permanently installed ex works. Self-installation on-site by the user is not possible!
Features
• Integrated heating (permanently installed)
• Extends the application range of the BCL 308
i
to -35 °C
• Supply voltage 24 V DC ±20 %
• Enabling the BCL 308
i
through an internal temperature switch
(switch-on delay about 30 min for 24 V DC and minimum ambient temperature of
-
35 °C)
• Necessary conductor cross-section for the voltage supply: at least 0.75 mm²; the use of ready-made
cables is, thus, not possible
Structure
The heating consists of two parts:
• The front cover heater
• The housing heater
Function
When the 24 V DC supply voltage is applied to the BCL 308
i
, a temperature switch initially only connects
the heating to electrical power (front cover heater and housing heater). During the heating phase (around
30 min), when the inside temperature rises above 15 °C, the temperature switch connects the BCL 308
i
to the supply voltage. This is followed by the self test and the changeover to read operation. The PWR LED
lights up, showing overall readiness for operation.
When the inside temperature reaches approx. 18 °C, another temperature switch turns the housing heater
off and, if necessary, back on again (if the inside temperature drops below 15 °C). This does not interrupt
the read operation. The front cover heater remains activated until an inside temperature of 25 °C is
reached. At temperatures above this, the front cover heater switches off and, with a switching hysteresis
of 3 °C, back on again at an inside temperature below 22 °C.
Mounting location
Electrical connection
The required wire cross section of the connection cable for the voltage supply must be at least 0.75 mm².
Type
BCL 308
i
Ethernet
Design
Line scanner with deflecting mirror without heating
Optical data
Beam exit
Lateral zero position at an angle of 105°
Beam deflection
Via rotating polygon wheel (horizontal) and deflecting mirror (vertical)
Electrical data
Power consumption
Max. 3.7 W
Mechanical data
Weight
350 g (without connection hood)
Dimensions (H x W x D)
44 x 103 x 96 mm (without connection hood)
Table 5.3:
Technical data of the BCL 308
i
deflecting mirror scanners without heating
NOTE
The mounting location is to be selected such that the it does not expose the BCL 308
i
with
heating directly to a cold air stream. To achieve an optimal heating effect, the BCL 308
i
should
be mounted so that it is thermally isolated.
