Sundstrom SR 591 Mode D'emploi page 20

6. Key to symbols
See user instructions
Date clocks, year and month
CE approved by
INSPEC Certification Ltd.
Relative humidity
<XX% RH
Temperature range
+XX°C
-XX°C
7. Approvals
The SR 591 has been tested and approved in accordance
with PPE 89/686/EEC and EN 175 to class -F.
-F = mechanical strength - protection against low energy
impact.
The EC type approval certificate has been issued by Notified
Body 0194. For the address, see back-cover.
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