Heating Models Of The Barcode Readers - Leuze electronic BCL500i Technical Description

Specifications
5.2

Heating models of the barcode readers

The BCL 500
grated 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 500
• Supply voltage 24VDC ±20%
• BCL 500
(switch-on delay about 30min for 24VDC and minimum ambient temperature of -
35°C)
• Necessary conductor cross-section for the voltage supply: at least 0.75mm²; the use
of ready-made cables is, thus, not possible.
Construction
The heating consists of two parts:
• The front cover heater
• The housing heater
Function
When the 24VDC supply voltage is applied to the BCL 500
switch initially only connects the heating to electrical power (front cover heater and housing
heater). During the heating phase (around 30min), when the inside temperature rises above
15°C, the temperature switch connects the BCL 500
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 approximately 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 acti-
vated 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.
Electrical connection
The required core cross-section of the connection cable for the voltage supply must be at
least 0.75 mm².
Attention!
The voltage supply must not be looped through from one device to the next.
34
i \ BCL 501 i barcode readers are optionally available as models with inte-
i \ BCL 501 i enabling through an internal temperature switch
BCL 500
i
\ BCL 501
i
\ BCL 501
i i
\ BCL 501
i
to -35°C
i \ BCL 501 i , a temperature
i
to the supply voltage. This
Leuze electronic