Thermo Scientific Thermolyne NCAT F85930, Инструкция по установке и эксплуатации

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8
Operation
Outline of Operational Procedures
Thermo Scientific NCAT Asphalt Content Tester 37
To Change the Calibration Factor:
1. Press the “Calib. Factor” key once to enter a negative weight loss value and twice to enter a positive
value. The “Percent Loss” display will show the current calibration value. For a calibration factor of
0.21%, enter 21.
2. Enter your new calibration factor. Press the “Enter” key to accept your new calibration factor. This
must be done before the calibration factor light goes out.
3. Press the “Calib. Factor” button again to verify your new calibration factor.
To Tare Balance:
1. Press the “0” key.
Outline of Operational Procedures
If you do not press any other keys, the displays will revert to their standard displays
after five seconds.
Other parameters can be adjusted through the Hidden Key Routines.
Once the test is started, the setpoints cannot be changed.
Do not open door while program is in process. Flame and noxious fumes may be
released into the laboratory. Operator will be exposed to the risk of burns. Always
allow test program to reach endpoint before opening door.
Do not load cutback asphalt samples containing naphtha, gasoline, fuel oil or
explosive volatiles. Explosive ignition can occur resulting in a fire or a threat of burns
to the operator.
To avoid burns, this furnace must not be touched on the exterior or interior furnace
surfaces of the chamber area (except door handle and front control panel) during use
or for a period of time after use. “Hot Surface. Avoid Contact.”
Do not use in the presence of flammable or combustible chemicals; fire or explosion
may result. This device contains components which may ignite such materials.