- 46 -
9-3. Preparing for a Span Adjustment (Demand Flow
Regulator)
This section describes how to prepare for calibration if you are using a calibration kit that includes:
• Demand flow regulator
• Calibration tubing
• Calibration cylinder
1. Screw the demand flow regulator onto the calibration cylinder.
2. Connect the tubing to the demand flow regulator’s hose barb fitting.
9-4. Automatic Span Adjustment
These instructions describe an automatic calibration of the SP-220. Be sure you have performed a fresh air
adjustment and prepared for calibration as described in the previous sections before continuing.