13. Release the target gas from the target gas source.
Emerson recommends a flow rate of 1.0 liters per minute to ensure a consistent
sensor reading.
Note
If you need a long length of calibration tubing to reach the device, make allowances
for a delay in response time from the sensor while the target gas travels the length
of the calibration tubing.
A gas concentration should begin to register on the device display and gradually
increase to the calibration gas concentration level. The gas concentration level
shown on the device display may not exactly match that shown on the label
attached to the target gas source.
14. Wait while the gas concentration measurement stabilizes.
.
Figure 2-7: Typical Calibration Profile
A. Gas concentration ppm
B. Time (in seconds)
C. Gas concentration measurement has stabilized
Configuration
Reference Manual
September 2019
00809-0100-4928
66
Emerson.com/Rosemount
Summary of Contents for Rosemount 928
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Page 8: ...Contents Reference Manual September 2019 00809 0100 4928 viii Emerson com Rosemount ...
Page 106: ...Configuration Reference Manual September 2019 00809 0100 4928 106 Emerson com Rosemount ...
Page 178: ...Troubleshooting Reference Manual September 2019 00809 0100 4928 178 Emerson com Rosemount ...