Fluke 990DSL, Руководство пользователя

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Controls and Connections
The CopperPro Loop Tester: at a Glance
2
2-3
LCD
The LCD is a shock-mounted, sunlight-readable, ¼-VGA (320 x 240 pixel)
graphic Liquid Crystal Display. A low-power Electro-luminescent (EL)
module provides backlighting to the LCD.
The LCD has two areas:
•
Display area (item
A
)
This area displays the prompts, test and setup menus, test results, and
messages.
•
Four softkey labels (item
B
)
These labels identify the screen-dependent function keys. To activate a
function, press its softkey (1, 2, 3, or 4), which is located on the tester’s
keypad directly below the label.
Keypad
The keypad is a sealed, waterproof membrane that has 29 keys. Table 2-1
describes the function of each key.
Table 2-1. Functions of the CopperPro Keys
Key Function
AB
CD
Four rectangular numbered keys that are located directly
under the LCD.
These are software-defined keys (called “softkeys”) that
carry out commands related to the currently displayed
screen. To locate the function of a key, look on the LCD
directly above the key.
K
Starts the selected test and stops the currently running test.