Calibration TriStar II 3020 Scheduled Maintenance Instructions
18 Jun 09
Calibrating the Pressure Scale
1. Make sure the Instrument Schematic is displayed and manual mode is enabled.
2. Attach nitrogen at 10 to 15 psig to the gas inlet port for Valve 9.
3. Make sure valve 6 is closed, then use the servo valve to pressurize the ports if they are not
at atmospheric pressure (about 760 mmHg).
4. Open valves 5, 1, 2, 3, and 15 (if present).
5. Select Unit [n] > Calibration > Pressure Scale from the main menu.
6. Make sure all the transducers are checked.
Make sure valve 6 is closed for the next step. The transducers can be damaged if this
valve is open.
To Next Page
Loading...
