Protective Construction - Omron V640 - MANUAL 2 User Manual

Protective Construction

IP- is governed by the test methods described below. Check in advance the seal characteristics under
the actual environment and conditions of use.
IP is the abbreviation of International Protection.
■ IEC (International Electrotechnical Commission)
Standard (IEC60529: 1989-11)
(A) First numeral in code: Class of protection against entry of solid foreign material
Class
0
1
2
3
4
5
6
(B) Second numeral of code: Class of protection against the entry of water
Class Degree of protection
0 No special protection
1 Protection against droplets
of water
2 Protection against droplets
of water
Degree of protection
No protection
Protected against access by solid objects with a diameter of 50 mm or greater (e.g. human hands).
Protected against access by solid objects with a diameter of 12.5 mm or greater (e.g. fingers).
Protected against access by wires and solid bodies with a diameter of 2.5 mm or greater.
Protected against access by wires and solid bodies with a diameter of 1 mm or greater.
Entry of volumes of dust that would cause difficulties in normal operation of devices or compromise
safety is prevented.
Entry of dust is prevented.
No protection against the
entry of water.
The product suffers no ill
effects from droplets of water
falling vertically onto it.
The product suffers no ill
effects from droplets of water
directed at it at an angle of up
to 15° to vertical.
Outline of test methods (tests using water)
No test
Water droplets are
sprayed onto the product
from directly above for 10
minutes by water droplet
exposure test apparatus.
The water droplet expo-
sure test apparatus is set
to 15° from vertical and
water droplets sprayed
onto the product for 10
minutes (total of 25 min-
utes in each direction).
SECTION 6
Appendix
CIDRW System
137
User's Manual