Emerson Exchange 365

The measurement benches of his analyzer were the following:

• Bench 1: 0-5 to 25% CO2
• Bench 2: 0-2 to 40% CO2
• Bench 3: 0-10 to 100% CO2
• Bench 4: 0-2 to 40% CO2

The detection limit of our X-Stream X2 Analyzer is within 1% of the lowest full scale and a user selected full scale range of the analyzer measurement bench.

This means for example the lowest scale for the detection limit for Bench 1 is within 1% of the 0-5% range, thus the detection limit for this range would be +/- 0.05%.

For the detection limit of full scale range for Bench 1, this would be within 1% of the 0-25% range, thus the detection limit for this range is +/- 0.25%.

Say the customer wants to set Bench 1 to a range of 0-1%, this means the detection limit for this analyzer type is +/- 0.05% since we take the detection limit with respect to the lowest full scale range for the lower ranges.

If the customer instead wants to measure a full scale range of 0-10% on Bench 1, the detection limit of this is 1% of 10% which is a detection limit of +/- 0.1%.   

It is assumed that the customer calibrates these ranges appropriately to meet the detection limit specifications.  This means that the customer use a zero gas (recommend N2) and a span gas (recommend 80-110% of full scale range measurement gas).