Hardy HI6800 Series, Руководство пользователя

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Chapter 5 – Configuration
Hardy H6800 Series Application Controllers User Guide 75
Parameter Description
Gravity Objects weigh about 0.5% less at the equator than they weigh at each pole because the force of gravity is less
at the equator than at the poles. For example, an object weighing 100 pounds at the North Pole on a spring
scale would weigh 99.65 pounds at the Equator.
Depending on the latitude of your location, your scales measure somewhere in between. Table 5-3 shows the
gravitation correction factor for various cities around the world.
In general, if your location is between the 45th parallel and the equator, gravity correction is greater than 1.0.
For example, at these latitudes, because the gravity is less, you are adding, 1.0006 for an error that is .06%).
For locations between the 45th parallel and the North or South Pole your correction factor will be less than 1.0.
For example .9994 for an error that is -.06%
Ref Weight Total live load that is currently on the scale. The calibration process uses a reference weight, which is normally
zero (no weight on the scale) but can be any known weight on the scale. With nothing on the scale, the
Reference Weight is 0.00. With 5 lbs on the scale, the Reference Weight is 5.00 lbs.
C2 Cal Press Do C2 Cal to perform the calibration. Wait a few seconds and the results appear. One of the following
messages appears briefly:
•
Cal Completed OK = calibration was successful.
•
Security Violation = you lack the security level required to perform a calibration.
•
Cal Failed = calibration failed. This message is accompanied by an error message. For corrective
actions, see Chapter 7.
Table 5-3. Gravitation Correction Factor for Cities Around the World
City Grav. Accel City Grav. Accel City Grav. Accel
Amsterdam 0.999369 Istanbul 1.000406 Paris 0.999048
Athens 1.000684 Havana 1.001872 Rio de Janeiro 1.001884
Auckland NZ 1.000782 Helsinki 1.001405 Rome 1.000326
Bangkok 1.002392 Kuwait 1.001405 San Francisco 1.000702
Brussels 0.999503 Lisbon 1.000615 Singapore 1.00269
Buenos Aires 1.001004 London 0.999445 Stockholm 0.99877
Calcutta 1.00191 Los Angeles 1.001028 Sydney 1.00104
Cape Town 1.00104 Madrid 1.000461 Taipei 1.001741
Chicago 0.99922 Manila 1.000461 Tokyo 1.000886
Copenhagen 0.999075 Mexico City 1.002102 Vancouver BC 0.999653
Nicosia 1.00093 New York 1.000433 Washington DC 1.000601
Jakarta 1.002631 Oslo 0.998726 Wellington NZ 0.999399
Frankfurt 0.999579 Ottawa 1.000007 Zurich 0.999821