Certification
SAFETY NOTES
• HT54x radios must always be used within the terms of their certification.
• Keep the radios away from aggressive substances. If used in a hostile environment, extra
protection may be needed.
• To prevent ignition of hazardous atmospheres, batteries must only be charged in an area
known to be non-hazardous.
• Use of battery chargers other than the Entel charger supplied will invalidate the explosion
protection certification.
• No unauthorised repairs are permitted.
• Radios fitted with a CNB550E battery pack must not be used outside of the ambient
temperature range Tamb = -20ºC to +28ºC
• Radios fitted with a CNB550E battery pack must not be used outside of the ambient
temperature range indicated on the battery pack label.
27
Certification
Ex ib IIA T4
‘the
choice’
professional’s
Headquarters: United Kingdom www.entel.co.uk
Copyright Entel UK Ltd. 2009
<Intended Country Of Use>
AT
BE
BG
CY
CZ
DK
EE
FI
FR
DE
GR
HU
IS
IE
IT
LV
LT
LU
MT
NL
NO
PL
PT
RO
SK
SI
ES
SE
CH
UK
Registered Community Design Application 000810890
U.S. Design Patent Pending No. 23/182,829
Copyright and Unregistered Design Right Entel UK 2009
All rights reserved