Chapter 3 Specifications; Measurement Specifications - Emerson Rosemount 6888C Instruction Manual

Instruction Manual
00809-0100-4891
3 Specifications
3.1

Measurement specifications

3.1.1 Net O
Variable 0 - 10% to 0-50% (Xi electronics of 0-50% range)
3.1.2 Accuracy in oxidizing condition
±0.75% of reading at 0.05% O
above.
3.1.3 Lowest detectable limit
0.02% O
3.1.4 Process temperature effect
Less than 0.05% O
3.1.5 System speed of response to calibration gas
Initial response in less than 3 seconds; T90 in less than 8 seconds. Response to process gas
changes varies depending on process gas velocity and particulate loading of the diffuser.
3.1.6 Calibration validity
Presentation of calibration gases matches the bottle value to within 0.02% O
3.1.7 Accuracy in reducing conditions (requires stoichiometer
feature)
±10% of reading or 0.1% O
3.1.8 System response in reducing conditions (requires
stoichiometer feature)
Going from oxidizing to reducing - T90 in 120 seconds
Going from reducing to oxidizing - T90 in 30 seconds
Instruction Manual
range
2
, whichever is greater. ±1% of full scale for 0-10% ranges and
2
2
from 100 to 700 °C (212 to 1292 °F)
2
, whichever is different size
2
Specifications
July 2018
2
15