Calibrating The Rosemount ™ 628 Gas Sensor Module - Emerson Rosemount 928 Reference Manual

Reference Manual
00809-0100-4928
6. Select Next to confirm successful process alert configuration.
7. Select Finish.
2.8 Calibrating the Rosemount
Module
Calibrating the Rosemount
discrete outputs accurately transmit the target gas concentrations registered by the
module. Although Emerson
the following times to ensure accuracy and correct operation:
• During installation
• At least every 90 days throughout the device's service life
• When replacing the Rosemount 628 Gas Sensor Module
The Rosemount 628 Gas Sensor Module is a smart sensor. As such, it retains its own
calibration information. It must be connected to a Rosemount 928 Transmitter to
calibrate, but the calibration settings are stored in itself rather than in the Rosemount 928.
You may uninstall the Rosemount 628 from a Rosemount 928 and reinstall it in another
transmitter without affecting its calibration.
Note
You do not need a conventional calibration cup to calibrate the Rosemount 628. Connect
calibration tubing (PVC tubing, 3/16-in. ID, 5/16-in. OD) directly to the fitting on the
Rosemount 628 IP filter assembly (part number 00628-9000-0001).
™
628 Gas Sensor Module ensures that the analog, digital, and
™
calibrated the device at the factory, you must calibrate it at
™
628 Gas Sensor
Configuration
August 2018
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