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S c h e d u l e
(13)
EC-Type-Examination Certificate PTB 02 ATEX 2197 X
(14)
(15)
Device Description
The explosion-proof wall clock, type Ex-Time ** can be used in potentially
explosive atmospheres.
The admissible ambient temperature range is 0°C - 50°C.
Electrical Data
Auxiliary power..................
Feed circuit........................
(16)
Examination Report
(17)
Special Conditions
Only use battery types that are listed in the operating instructions
supplied with the device.
(18)
Essential Safety and Health Requirements
are fulfilled in accordance with the above-mentioned directives
Certifying body for Explosion Protection
Braunschweig,
By the order of
Dr.-Ing. U. Johannsmeyer
Government Director
20
Battery 1.5 V model LR14 (see (17))
in ignition protection class for
intrinsic safety EEx ia IIC
Maximum values:
Uo =
1.5 V
Io =
866 mA
Po =
60 mW
for clockwork connection
PTB Ex 02-22330
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