Cosa 9610 - Connection; X-Purge Option; Purpose

INSTALLATION, OPERATION AND MAINTENANCE MANUAL – COSA 9610™
13 | Page
1.5.4. Connection
CONNECTION
SERVICE
SIZE
DESCRIPTION
MAT'
NOTE
N1 PROCESS GAS 1/8" OD
COMPRESSION
FITTING
SS-316
N2
CALIBRATION GAS
LOW
1/8" OD
COMPRESSION
FITTING
SS-316
N3 CALIBRATION GAS MID 1/8" OD
COMPRESSION
FITTING
SS-316
IF
APPLICABLE
N4 CALIBRATION GAS HI 1/8" OD
COMPRESSION
FITTING
SS-316
N5 INSTRUMENT AIR 1/2" OD
COMPRESSION
FITTING
SS-316
N7
ATMOSPHERIC VENT
(GAS BYPASS)
1/4" OD
COMPRESSION
FITTING
SS-316
N8
ATMOSPHERIC VENT
(VENT FROM OVEN))
1/4" OD
COMPRESSION
FITTING
SS-316
1.6 X-Purge Option
1.6.1. Purpose
The COSA 9610™ Calorimeter is protected by a Pepperl & Fuchs X-purge unit. The purge
Type X and Ex px purge pressurization system protects general-purpose equipment mounted
in a standard enclosure so that it can be located and operated in a hazardous area. The
hazardous area classification can be Class I and/or Class II, Division 1/Zone 1 and/or Zone