2 keypad, 2 keypad 5, General description – Dwyer Series PUF User Manual

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1: General Description

Battery charger connection

The supplied battery charger is connected to the instrument by means of the gray 2-pin connector on the bottom
of the unit, as shown in Figure 1.3.

Note: The above connectors have different key-ways to prevent incorrect cable connection.

Figure 1.4 Keypad

1.4.2 Keypad

The instrument is configured and controlled via a 16-key tactile membrane keypad, as shown in Figure 1.4.

ON/OFF Key

The

ON/OFF key is shown on the top left of the keypad. When turned ON an initialization screen is displayed on

the LCD showing the instrument’s serial number and software revision. Once this appears, the instrument can be
started by pressing the

ENTER key once – the initialization screen is then replaced by a MAIN MENU which

provides access to the remaining functions.

Menus and the menu selection keys

The PUF menus are arranged hierarchally with the

MAIN MENU being at the top level. Menu navigation is

achieved by three keys on the right hand side of the keypad which are used to scroll

UP and DOWN a menu list and

SELECT a menu item. When scrolling through a menu, an arrow-shaped cursor moves up and down the left hand
side of the screen to indicate the active menu choice which can then be selected by pressing the

ENTER

(

SELECT) key.

Some menus have more options than can be shown on the screen at the same time, in which case the
‘overflowed’ choices can be brought into view by continuing to scroll

DOWN past the bottom visible item. Menus

generally ‘loop around’ if you scroll beyond the first or last items.

If you select

Exit it usually results in taking you back one level in the menu hierarchy, but in some cases it may

go directly to the ‘Flow Reading’ screen.

Some screens require you to move the cursor left and right along the display as well as up and down. This is
achieved using keys 5 (scroll