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Emerson Rosemount 6888C Quick Start Manual page 32

In-situ combustion oxygen analyzer for use in hazardous areas
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Quick Start Guide
Conditions of acceptability
1. The unit is intended to be connected to supply mains by qualified
personnel in accordance with national (e.g. CEC, NEC, etc) and local
codes.
2. Suitable APPROVED switch and fuse or a circuit breaker shall be
provided to facilitate the disconnection of mains power.
3. The maximum operating ambient is considered as follows: 90 °C for
6888C DR Probe, 70 °C for 6888C Transmitter.
4. Mounting Flange temperature shall not exceed 190 °C during
combustion process.
5. Calibration air lines and reference air lines shall not contain pure
oxygen or combustible gas other than inert/oxygen gas mixture of
which oxygen represents no more than that normally present in air.
6. The pressure within the enclosure and gas lines shall not be higher
than 1.1 times the atmospheric pressure during the normal
operations of the equipment.
7. The 6888C O
Electronics, which must be installed in a Non-Hazardous Location,
per wiring diagram 6R00131.
8. Meets Enclosure Type 4X & IP66 ratings when the reference air vent is
routed to a dry area.
9. Units installed with conduit runs must have suitably certified conduit
seals installed at the enclosure.
10. Units installed with other than conduit runs and conduit seals, must
be fitted with certified or listed cable glands for use in "Class I, Zone
1, Ex/AEx d IIB+H2" and "Class I, Division 1, Group B, C and D" or
better, suitable for the ambient temperature range.
11. Flameproof joints are not intended to be repaired.
A.5
Europe
Model String
Option Code
ATEX Certificate
Standards
Markings
32
Analyzers are used with the 6888 Xi Advanced
2
A
Sira 14ATEX1031X
EN 60079-0:2012/A11:2013, EN 60079-1:2014
II 2 G Ex db IIB+H2 T3 Gb; IP66; -40 °C ≤ Ta ≤ +70°C
( Autocal Housing and Probe assembly); -40 °C ≤ Ta ≤
+90°C (Standard Housing and Probe assembly eq.
"DR Probe")
October 2019
Emerson.com/Rosemount

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