Emerson Daniel 1200 Series, Руководство пользователя

Страница: 78 / 114

Important
Performing a scaling or calibration operation will override any K-Factor programming. Similarly,
completing the K-Factor menu will override any scaling or calibration performed on the meter. Verify
the method of programming required. Use the password protection feature to secure the meter if
necessary.
Three methods of programming the display show the engineering units based on input
pulses:
• Use the Factor menu to enter a K-Factor.
• Use the Scale menu to enter the scaling without a signal source.
• Use the Calibrate menu to apply a signal from a calibrator or a flowmeter.
The K-Factor, scale and calibrate functions are independent of each other. The meter uses
the last function programmed. The
Scale and Calibrate functions can use up to 32 points
(default is 2). The number of points should be set in Scale and Calibrate accordingly under
the Number of Points (noPtS) menu selection prior to scaling and calibration of the meter.
See
Number of points (noPtS) for details.
Scale and calibrate the meter using this menu. Refer to Section 5.7.2 for information on
using a K-Factor for programming the input.
6.8.1 Undo K-Factor, scale, and calibration (Undo?)
A confirmation menu appears whenever the input programming changes from K-Factor to
scaling or calibration; or from scaling or calibration to K-Factor.
See figure below for an example of a meter programmed with a k-factor that is being
reprogrammed to utilize input scaling.
Undoing K-Factor, scale and calibration (Undo?) Figure 6-7:
6.8.2 Scale the meter (SCALE)
The pulse input can be scaled to display the process variable in engineering units. A signal
source is not needed to scale the meter. Program the inputs and corresponding display
values.
Product advanced features
66 LTM Internal Display