2020-01
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WCS* Read Head Position Encoding System
Options and Special Functions
9.3 Option-H—Heating in Read Head, Type LS...H
For applications with a risk of condensation (quick temperature change from cold to hot, high
relative humidity), the WCS read head can be equipped with an optional heater. The heating is
supplied via the read head, i.e., no additional electrical connection is required for the heating.
Ensure that the cross section of the supply line to the read head is sufficiently dimensioned.
The heater is switched on immediately after the voltage is connected to the read head. The
power consumption is 7 VA for the WCS2B and 9 VA for the WCS3B. The WCS3B heater uses
a regulator that automatically switches off the heater at a temperature above 60 °C, measured
at the transparent protective lenses of the read head.
With the heater option, the read head can be used in the temperature range of -40 °C ... 60 °C.
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