The following apply to fixed hazardous voltages-connected modules:
The max. size of the protective fuse is 10 A and, together with a power
switch, it should be easily accessible and close to the module. The
power switch should be marked with a label telling it will switch off the
voltage to the module.
CALIBRATION AND ADJUSTMENT:
During calibration and adjustment, the measuring and connection of external
voltages must be carried out according to the specifications of this manual. The
technician must use tools and instruments that are safe to use.
NORMAL OPERATION:
Operators are only allowed to adjust and operate modules that are safely fixed in
panels, etc., thus avoiding the danger of personal injury and damage. This means
there is no electrical shock hazard, and the module is easily accessible.
CLEANING:
When disconnected, the module may be cleaned with a cloth moistened with
distilled water or ethyl alcohol.
LIABILITY:
To the extent the instructions in this manual are not strictly observed, the custom-
er cannot advance a demand against PR electronics A/S that would otherwise
exist according to the concluded sales agreement.
27
SAFETY INSTRUCTIONS
DEFINITIONS:
Hazardous voltages
have been defined as the ranges: 75 to 1500 Volt DC, and
50 to 1000 Volt AC.
Technicians
are qualified persons educated or trained to mount, operate, and
also troubleshoot technically correct and in accordance with safety regulations.
Operators
, being familiar with the contents of this manual, adjust and operate the
knobs or potentiometers during normal operation.
RECEIPT AND UNPACKING:
Unpack the module without damaging it and make sure that the manual always
follows the module and is always available. The packing should always follow the
module until this has been permanently mounted.
Check at the receipt of the module whether the type corresponds to the one
ordered.
ENVIRONMENT:
Avoid direct sunlight, dust, high temperatures, mechanical vibrations and shock,
as well as rain and heavy moisture. If necessary, heating in excess of the stated
limits for ambient temperatures should be avoided by way of ventilation.
All modules fall under Installation Category II, Pollution Degree 1, and Insulation
Class II.
MOUNTING:
Only technicians who are familiar with the technical terms, warnings, and
instructions in the manual and who are able to follow these should connect the
module.
Should there be any doubt as to the correct handling of the module, please con-
tact your local distributor or, alternatively,
PR electronics A/S, Lerbakken 10, DK-8410 Rønde, Denmark,
tel: +45 86 37 26 77.
Mounting and connection of the module should comply with national legislation
for mounting of electric materials, i.a. wire cross section, protective fuse, and
location. Descriptions of Input / Output and supply connections are shown in the
block diagram and side label.
26