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Section 3: General
User Instructions
MAN-02-04-60-0351-EN Rev. 3
Febraury 2019
General
Section 3: General
3.1
Safety Instructions
CAUTION: FOLLOW SAFETY INSTRUCTIONS
When operating electrical devices, certain parts are inevitably under dangerous voltage.
Work on the electrical systems or components may only be carried out by electricians or by
individuals who have been instructed how to do so, working under the guidance and
supervision of an electrician in accordance with electrotechnical regulations.
WARNING: ALWAYS REFER TO STANDARDS
When working in potentially explosive areas, refer to European Standards EN 60079-14
“Installing Electrical Systems in Explosion Endangered Areas” and EN 60079-17 “Inspection and
Maintenance of Electrical Installations in Explosion Endangered Areas”.
Working in potentially explosive areas is subject to special regulations (European Standard EN
60079-17), which must be complied with. Any additional national regulations must be heeded.
CAUTION: ALWAYS BE AWARE OF DANGER TO EXPLOSION
Work on the open actuator under voltage may only be done if it is certain that there is no
danger of explosion for the duration of the work.
3.2
Serial Number
Each actuator of the Bettis RTS FQ Series carries a serial number. The serial number is a
10-digit number that begins with the year and that can be read from the type label
(see Figure 3) the type label is located next to the handwheel).
Using this serial number, Bettis can uniquely identify the actuator (type, size, design,
options, technical data and test report).
3.3
Protection Class
Bettis RTS FQ Fail-Safe Quarter-Turn actuators come by default with IP 68
(EN 50629) protection.
CAUTION:
The protection class specified on the type label is only effective when the cable
glands also
provide the required protection class, the cover of the connection compartment
is carefully secured closed, and the mounting position (see Section 3.4) is observed.