1 Introduction
6
1.2 Intended use
The instrument described in these instructions is intended for recording and
displaying physical measurement variables in an industrial environment, as
specified in the technical data. The instrument is suitable for installation in
switch cabinets with at least a simplified pressurized enclosure. Under these
conditions, use in a potentially explosive atmosphere (max. Zones 1 or 21) is
authorized from the front.
Any other use or use that goes beyond that described here - with regard to
operation in potentially explosive atmospheres - is regarded as not for the in-
tended purpose.
No liability can be accepted for any damage that may result.
The instrument is constructed in accordance with current standards and direc-
tives and complies with existing safety regulations. Nevertheless, improper
use may still cause physical injury or damage to property.
To avoid danger, the instrument must only be used:
- for its intended purpose
- in a perfectly safe conditions
- in compliance with these Installation Instructions
1.2.1 Notes on safe use
kWhen installing a paperless recorder with extra code 444 in switch cabi-
nets of protection type "px" or "pz" or "py", you must ensure that:
- the maximum permissible temperature specifications are not excee-
ded and
- protection rating IP65, as per the IEC/EN 60529 standard, is achieved
(seal mounting).
kIn accordance with Directive 94/9/EC (ATEX 95) Annex I, the paperless
recorder with extra code 444 is a component (Ex component) of equip-
ment group II, category 2G. A separate conformity assessment procedu-
re must be performed for installing these components. Requirements un-
der EN 60079-14 must subsequently be followed for application and in-
stallation.
kIn accordance with Directive 94/9/EC (ATEX 95) Annex I, the paperless
recorder with extra code 444 is also a component (Ex component) of
equipment group II, category 2D. A separate conformity assessment
procedure must be performed for installing these components. Require-
ments under EN 61241-14 must subsequently be followed for applicati-
on and installation.
kThe permissible (internal and external) ambient temperature range is 0 to
+50 °C.
kUnder error conditions, the maximum external temperature reached at
the front of the paperless recorder with extra code 444, is 69 °C.
