Phase 1 - Preliminary Checks; Explosion Protection - ABB Field 264H Instructions For Installation Manual

PHASE 1 - PRELIMINARY CHECKS

2. PRELIMINARY CHECKS
Before mounting the transmitter, check the compatibility with
the following measurement and safety requirements:
-

Explosion protection

- Pressure rating
- Operating voltage limits
- Process and ambient Temperature limits
- Environmental limits
- Corrosion
2.1 EXPLOSION PROTECTION
Explosions could result in death or serious injury. Installation
of this transmitter in a Hazardous Area (i.e. a potentially
explosive atmosphere) must be in accordance with the
appropriate local, national, and international standards, codes,
and practices.
Please review the approvals and marking of the transmitter
shown on the label attached to the transmitter (see figure 1 -
Ref. C), note that this is a sample, read the values on the real
label; if this label is not present, the instrument is not suitable
for installation in Hazardous Areas. It is necessary to check
Ref. C
Ref. D
- 4 -
not available for U.S.
Fig. 1 - Product identification
that all the parameters listed on this label (or on the certificates
enclosed with the transmitter) are in accordance with the
requirements of the area where the transmitter is going to be
installed. See the reference manual for an explanation of each
parameter related to "EX SAFETY". In case of any discrepancy
do not install the transmitter.
For pressure transmitter with ATEX combined approval, before
installation, the transmitter should be permanently marked with
the selected Protection Concept (e.g. intrinsically safe or
explosion proof) on the safety label. The transmitter can be
used only in accordance with this Protection Concept for its
whole life.
Note - The transmitter may be used as a safety
accessory (as defined by the Pressure Equipment
Directive 97/23/EC) i.e. as part of a shutdown system. In
this case it is recommended to select the correct fail safe
mode for the 4-20 mA signal (as per Namur NE43
recommendation). See also the instructions relevant to
fail safe selection (Up/Down scale mode) in the addendum
to the instruction manual on "Use of hardware links on the
secondary electronics" .
FILL
FLUID
DIAPHRAGM
MATERIAL
SERIAL
NUMBER
Ref. B
Ref. A
Primary Unit
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