World Class 3000
Instruction Manual
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SCOTT ENVIRONMENTAL TECHNOLOGY, INC. SCOTT SPECIALTY GASES
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2If gas bottles will be perma- nently hooked up to the probe, a manual block valve is required at the probe (be- tween the calibration fitting and the gas line) to prevent the migration of process gases down the calibration gas line.
If an MPS 3000 Multiprobe Gas Sequencer is used, a check valve is required at the probe.
3Two,
4One instrument air pressure regulator: 20 psi (138 kPa)
maximum and a supply of clean, dry instrument air.
5Two
6Miscellaneous
(b)Calibration
1A typical calibration setup is shown in Figure
are tight and free from oil or
other organic contaminants. 4 Small openings can cause
back diffusion of oxygen from the atmosphere even though positive pressures are main- tained in the lines.
NOTE
The probe calibration gas fitting has a seal cap which must be in place at all times except during calibration.
In addition to the precision calibration gas mixtures, clean, dry,
For optimum accuracy, this calibration should be run with the process at normal temperature and operating conditions.
When the calibration gas line exceeds 6 ft (1.8 m) in length from the leak tight valves, check valve, Rosemount P/N 6292A97H02, should be in- stalled next to the calibration gas connection on the probe to prevent breathing of the line with the process gas and subsequent gas condensation and corrosion.
Rosemount Analytical Inc. A Division of Emerson Process Management | Calibration |
