TECHNICAL INFORMATION
23
87-900-120-01 (A)
Large Size Measurement screen Page
The Large size screen page promotes excellent
visibility of basic data during leak checks.
To return to normal display mode, simply press the
“OFF” key or the “MENU” key. The data displayed by
the Large Size measurement screen are as follows:
Leak rate (large size type)
Unit of measurement
Measurement Trend (
∧
) (
∨
) (=)
Zero Status (Az) (Fz)
During display of the Large Size measurement screen
page, it is possible to modify the zero setting (ZERO
key) and to check backlighting of the display using the
key (
).
Desktop menu
Pressing the menu key from the main screen page, the
HID permits access to the main menu, (Desktop menu).
Using a set if icons, this menu allows graphic
identification of the main functions divided into
“families”. The various icons can be scrolled using the
central two soft-keys (2 and 3) that are identified by the
symbols “
∨
” and “
∧
”, selecting the icon required with
key 4 (OK).
Key 1 performs the “Escape” (ESC) function; if
pressed, it causes return to the measurement screen
page.
The name of each icon (family) can be read in the
bottom part of the display during scrolling with the “
∨
”
and “
∧
” keys. The following submenus can be
accessed from the Desktop menu
1. Set-up
4. Setpoints
2. Option
5. Maintenance
3. Communications
6. Security
Use of the menus
Use of the menus is the same for the entire user
interface and is based on the following basic rules:
Functions of the soft-keys:
Key 1 - performs the Escape function (ESC) and is
used to exit the menu after viewing the data or making
modifications
Key 2 – performs the function of moving the cursor
down/left (where cursor means selection of the item
highlighted in reverse).
Key 3 – performs the function of moving the cursor
up/right (where cursor means selection of the item
highlighted in reverse).
Key 4 – performs the function of confirmation (OK) if it
is necessary to modify the status of a specific
parameter or permits access to the submenus selected
previously with the “
∨
” and “
∧
” keys
PHD messages:
The HID can communicate with the operator through a
set of messages of the following type
–
Affirmative, highlighted inside the frame identified
with the i mark
–
Interrogative, highlighted inside the frame
identified by the ? mark.
SETUP MENU
High
Sensitivity
The High “Sensitivity” command can be used to set the
most suitable degree of sensitivity for the leak detection
activity in course. The degree of sensitivity set at
power-on of the device is always the Low Level (LS)
(“High Sensitivity” not selected). Enabling the “High
Sens” command, the minimum detectable
concentration changes from 100 ppm (LS) to 2 ppm
(HS).
1
2
3
4
