Specifications

Trace Oxygen Analyzer Module
Rosemount Analytical NGA 2000
748420-A
August 1999
9
I
NSTALLATION
2
Sample
Inlet
1/4" Tube
Sample
Exhaust
1/4" Tube
F
IGURE
2-3. B
ACK
P
ANEL
C
ONNECTIONS
CAUTION: GAS OVERPRESSURE
At no time should sample, zero or span gas inlet pressure exceed 69 hPa -
gauge (1.0 psig). Damage to the Sensor may occur if this pressure level is
exceeded.
CAUTION: SAMPLE FLOW
Do not test the sample pressure by blocking the exhaust. When the pressure is
released the sudden surge of flow will spin the internal flowmeter off its
bearings and destroy it.
2.4.3 L
EAK
T
EST
The TO2 Analyzer Module is completely tested at the factory for gas leakage. The user is
responsible for testing for leakage only at the inlet and outlet fittings on the rear panel.
CAUTION: SENSOR DAMAGE
Do not expose the Sensor to pressure in excess of 1.0 psig as this may cause
damage.