Bartec ORB P-800LT, Руководство пользователя

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11-07-2013
P-800LT Freeze Point Analyzer 4-5 Programming
4-20 Out 1 / 4-20 Out 2 — The P-800LT Freeze Point Analyzer’s analog outputs (one standard; second
optional) can be programmed to output various types of information, as well as the range of the analog
signal and an offset.
Output — This menu item allows you to select the type of information that will be output
using the selected analog signal. The choices are cloud point temperature, freeze point
temperature, cell temperature, signal 0, signal 90, or validation information.
4 mA — This menu item is used to set the value at which a 4 mA signal will be output.
20 mA — This menu item is used to set the value at which a 20 mA signal will be output.
Offset — This menu selection allows you to offset the analog output signal by the
programmed value. For example, if the offset is set to +2.5, the Analyzer will generate an
analog signal corresponding to 16.5° when the actual measured (and displayed) Freeze
point value is 14.0°.
Digital Output — This menu item allows you to select the type of digital signal the Analyzer will output.
The choices are RS232N (result), RS232D (data dump), or ModBus (If the Analyzer is equipped with the
RS485 option, use the RS232 setting).
Trend Display — This menu item allows you to select the measurement information which will be
displayed in the graphical data display section of the Main Run screen. The choices are:
Cycle — When cycle is selected, information regarding the current Freeze point
measurement cycle is displayed. You can enable/disable any or all of the elements
associated with the Freeze point measurement (temperature, signal 0, and/or signal 90).
Rate — This is the rate at which the display will refresh. It may be set to Half or Full.
Range — This establishes the horizontal range of the trend graph. As the graph
progresses, the left and right boundaries will shift to show the latest data, but the
range will always remain at this value.
Temperature — When enabled, the Analyzer will graph and display the
temperature as the instrument makes a freeze point measurement. It also
allows you to establish the display range for these measurements.
Enabled/Disabled — Turns this particular graphing function on/off.