Panasonic SE4D Series Instruction Manual page 84

<Reference>
Refer to "3-9 Functions Using Handy Controller (SE9Z-HC) (Optional)" for details related to the func-
tion setting, or to the instruction manual attached to handy.
83
This device enables to set each function by using the handy controller (SE9Z-HC)
(optional). Among the functions, the contents related to the safety distance such
as the size of the minimum sensing object are varied depending on the setting
condition. When setting each function, re-calculate the safety distance, and make
enough space larger than the calculated safety distance. Failure to do so might
cause the accident that the device cannot stop quickly before reaching the dan-
gerous area of the device, resulting in the death or serious injury.
Both emitter and receiver are adjusted before shipment, please apply both emitter
and receiver with the same serial No. The serial No. is indicated on the plates of
both emitter and receiver. (Under the model represents the serial No.)