Introduction
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1.3
Symbols Used
This document contains symbols for the identification of warning messages and of informative
messages.
Warning Messages
You will find warning messages, whenever dangers may arise from your actions. It is mandatory
that you observe these warning messages for your personal safety and in order to avoid prop-
erty damage.
Depending on the risk level, the warning messages are displayed in descending order as fol-
lows:
Informative Symbols
Action
This symbol indicates a paragraph with instructions. You are prompted to perform an action or
a sequence of actions.
1.4
Intended Use
The UC***-18GS series ultrasonic sensors use ultrasonic pulses to detect objects. The sensor
emits ultrasound, which is reflected by the object and received again by the sensor. The mea-
sured sound propagation time is used to determine the distance to the object (pulse-echo prin-
ciple). Objects in the following forms can be detected: solid, granular, powder, or liquid. The
color and surface structure of the objects are irrelevant. Gases cannot be detected.
Always operate the device as described in these instructions to ensure that the device and con-
nected systems function correctly. The protection of operating personnel and the plant is guar-
anteed only if the device is operated in accordance with its intended use.
The operator is responsible for complying with all local safety regulations.
Only use recommended original accessories.
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt the device and any connected systems and plants, or result in
their complete failure.
Note
This symbol brings important information to your attention.
Note
UC***-18GS series ultrasonic sensors are not safety components within the meaning of the EC
Machinery Directive 2006/42/EC. They must not be used for the purposes of avoiding risk to
individuals or parts of the body.
