TA AR-G2, Getting Started Manual

Page: 49 / 58

AR-G2/AR 2000ex/AR 1500ex Getting Started Guide Page 49
Chapter 3:
Use, Maintenance, and Diagnostics
Start-Up and Shut-Down Procedures
Starting Up the Rheometer
Follow the steps below to start the rheometer:
NOTE : This assumes that the rheometer has already been correctly installed.
1 Check that the air supply is turned on
2 Remove bearing clamp if fitted.
3 Turn on fluid circulation, if required for correct operation of the installed temperature system.
4 Turn on power to the rheometer.
5 Connect to rheometer via the software.
Shutting Down the Rheometer
Follow the steps below to shut down the rheometer:
1 Turn off the power to the rheometer.
2 Turn off any fluid circulation.
3 Fit the air bearing clamp if it is likely that the bearing will be disturbed while the air is off. In the case
of the EHP, UHP, and ETC (doors closed), simply removing the draw rod should be sufficient to protect
the bearing unless the instrument is going to be moved.
NOTE : It is recommended that the air be left on and that the bearing remain unclamped.
4 Turn off the air supply.
It is possible for the motor/bearing assembly on an AR2000ex\AR1500ex to slowly drop under its own
weight when the power is off. This will not damage the rheometer, and will only result in the zero gap posi-
tion being lost. To maintain the zero reference in such cases, follow the alternative shut-down procedure
below:
1 Remove any temperature systems from the Smart Swap connector.
2 Remove upper geometry if fitted.
3 Lower the bearing\motor assembly to the bottom of its travel.
4 Turn off power to the rheometer.
5 Fit the bearing clamp, if bearing is likely to be disturbed while the air is off.
6 Turn off the air supply.