Arbiter Systems 1092A, Руководство по эксплуатации

Страница: 23 / 214

2.2 Front Panel Controls and Indicators 5
2.2 Front Panel Controls and Indicators
The front panels of the Model 1092A/B/C and 1093A/B/C series clocks are different from one
another because of the arrangement of LED indicators, display(s) and keypad. See Figure 2.1 to
see the difference between these models. Of the 1092-series clocks, only the Model 1092B has an
eight-button keypad. Because of the large LED display, the Model 1092C does not have the two-line
by twenty-character LCD. All 1092-series clocks have the two annunciator LED’s.
The Model 1093A has two annunciator LED’s; the Model 1093B adds to that the two-line by
twenty-character LCD and eight-button keypad; the Model 1093C adds to the Model 1093B another
nine-character, LED for higher visibility. ON/OFF switch is optional and can be added for a small
charge. The upper row of keys are Information keys and the lower row of keys are configuration
keys. In the figure below are illustrated the front panels of all of these clocks, illustrating all of the
indicators and controls.
Definitions for the annunciator LEDs are found below and definitions for keys in Table 2.1. Each
of four upper keys allows you to view specific clock information, such as time and date, geographical
position and instrument status. Each of the four lower keys allows you to configure various clock
functions. To configure, see Chapter 7, The Setup Menus.
2.2.1 Command Key Definitions
Table 2.1 subdivides all of the functions of the eight keys by name and function. Some of the keys
have alternate functions as well.
Key Function Alternate Function
TIME time and date N/A
POSITION latitude, longitude and eleva-
tion N/A
EVENT DEVIATION Event or Deviation N/A
STATUS Clock and Receiver Status N/A
SETUP setup mode move cursor left in data entry mode
UP select upper value increase numerical value
DOWN select lower value decrease numerical value
ENTER install selected value move cursor right in data entry mode
Table 2.1: Command Key Definitions
2.2.2 LED Status Indicators
Two LED’s provide information about the operational status of the instrument. The Operate LED
is green and the Out-of-Lock LED is red. For normal operation, with the clock locked and accurate,
the green LED should be ON and the red LED should be OFF. The following definitions apply to
these indicators: