Specifications

Trace Oxygen Analyzer Module
Rosemount Analytical NGA 2000
748420-A
August 1999
19
M
AINTENANCE AND
T
ROUBLESHOOTING
4
4.1 O
VERVIEW
CAUTION: QUALIFIED PERSONNEL
This equipment should not be adjusted or repaired by anyone except properly
qualified service personnel.
WARNING: PARTS INTEGRITY
Tampering with or unauthorized substitution of components may adversely
affect safety of this product. Use only factory-approved components for repair.
The TO2 Analyzer Module requires very little maintenance during normal operation.
The sensor in the TO2 utilizes a liquid electrolyte. When measuring dry gases, it may be
necessary to replenish the liquid by adding distilled or deionized water.
The sensor is designed to hold at least 100 cc of electrolyte. Typically, bone dry sample
gas can extract approximately 5-10 cc of water per month from the sensor. It is
recommended to check the electrolyte level every 3-4 months to assure that the electrolyte
level is within the acceptable operating limits as indicated by the label on the reservoir
section of the sensor.
The TO2 analyzer module is equipped with a low electrolyte alarm which indicates when
replenishment of the sensor is required. Please refer to the Platform manual for details on
configuring alarms.
CAUTION: REFILLING SENSOR
When refilling the sensor, only use distilled or deionized water. Do not use
electrolyte or tap water as they can cause damage to the sensor. Take care not
to overfill.