Siemens SIPROCESS GA700 Compact Operating Instructions page 30

Installing/mounting
3.1 Basic safety notes
Place of installation / zone
ATEX II 3G (Zone 2)
Analyzer
Flame arrestor
Purging
Device protection level
Non-hazardous zone
Analyzer
Gas path
Flame arrestor
Purging
30
Sample gas non-flammable
below
the lower explosive limit
LEL (25% of LEL)
Ex analyzer Ex ec
(Certificate BVS 18 ATEX E 084
X,
BVS 15 ATEX E 007 X and IE‐
CEx BVS 15.0007X) (installa‐
tion in suitable
enclosure with type of protec‐
tion ec, IP54 according to
EN/IEC 60079-0 and
EN/IEC 60079-7); pollution
degree 2
Not required
Not required
(EPL) Gc
Non-Ex analyzer
Gas path with hoses or pipes
Not required
Not required
Flammable sample gas
Ex analyzer Ex ec
(Certificate BVS 18 ATEX E 084
X,
BVS 15 ATEX E 007 X and IE‐
CEx BVS 15.0007X) (installa‐
tion in suitable
enclosure with type of protec‐
tion ec,
IP54 according to EN/IEC
60079-0 and EN/IEC
60079-7); pollution degree 2
• OXYMAT 7, ULTRAMAT 7
and CALOMAT 7 can be
used
• Reference gas OXYMAT 7
only N2 with min. 2.2 bar
rel.
• Reference gas OXYMAT 7
must be monitored
Not required
Recommended for OXYMAT 7
Required: Air exchange of at
least 5 times the enclosure
volume per hour, but at least
164 l/h must be ensured
(EPL) Gc
Non-Ex analyzer
• Pipe gas path
• Seals FFKM (option B04
for ULTRAMAT 7 and OXY‐
MAT 7)
• Regular leak test as descri‐
bed in the manual
• Evaluation regarding pos‐
sible zone displacement
must be performed by the
operator on site
Recommended
Required: Air exchange of at
least 5 times the enclosure
volume per hour, but at least
164 l/h must be ensured
SIPROCESS GA700 rack and wall mounted devices
Compact Operating Instructions, 06/2023, A5E35134047-AB
Sample gas is flammable
and/or is
occasionally above the LEL
(25% of LEL)
Ex analyzer Ex ec
(Certificate BVS 18 ATEX E 084
X and
IECEx BVS 15.0007X) (instal‐
lation in suitable enclosure
with type of protection ec,
IP54 according to EN/IEC
60079-0 and EN/IEC
60079-7); pollution degree 2
• CALOMAT 7 and ULTRA‐
MAT 7 can be used
Not required
Required: Air exchange of at
least 5 times the enclosure
volume per hour, but at least
164 l/h must be ensured
(EPL) Gb/Gc
Non-Ex analyzer
• Pipe gas path
• Seals FFKM (option B04
for ULTRAMAT 7 and OXY‐
MAT 7)
• Regular leak test as descri‐
bed in the manual
• Evaluation regarding pos‐
sible zone displacement
must be performed by the
operator on site
Recommended
Required: Air exchange of at
least 5 times the enclosure
volume per hour, but at least
164 l/h must be ensured