Apm 150 Keypad And Menus; The Apm 150 Keypad; Primary Key Functions - Alnor APM 151 Manual Del Usario

A. APM 150 Keypad and Menus

The APM 150 Keypad

Each key has two different functions. The primary
function is shown above the diagonal line on the
key's surface. The secondary function is shown
below the diagonal line. A more detailed
description of each function follows.
In the RUN mode, if a key is held for less than
three seconds, the primary function is activated.
When a key is held for more than three seconds,
the secondary function is activated. The
exceptions to this are the ↑ and ↓ keys. Because
they are used to move between menu options,
these keys do not function in RUN mode.
may cause the meter to react slowly to a key push.
The reaction time of a key push will vary with
different functions (1–3 seconds). Do not push a
key twice because of a slow response time. Doing
so may result in accidental activation of a
secondary function or duplication of a desired
function.

Primary Key Functions:

This key is used to turn the
ON/OFF
instrument on or off when in the
RUN mode. If the instrument is in
any other mode, pressing this key
will exit that function and go back
to the RUN mode without making
any changes.
10
The cycle time of the
APM 150 software
10
(Used only if a 175 or 275 probe is
VOL
attached.) The VOL key prepares
the APM 150 for air volume
measurements. After pressing this
key, you must indicate whether
you're measuring by area, or
whether you're measuring a round
or rectangular duct. Choose one of
these options by pressing the
↓
key, followed by the
make a selection. After you make
your selection, use the
to enter the dimensions, then the
↵
key to enter the units.
MENU allows you to select one of
MENU
several options. Use the
↓
keys to move through the
choices. To choose a selection,
push ↵, or return to RUN mode by
pushing ON/OFF. The MENU
selections are as follows:
[
[
[
[
[
[
[
[
(See also "Menu Selections," next
page.)
Pressing this key freezes data in
HOLD
RUN mode for input to memory or
output to a printer. The display
flashes. Pushing HOLD again
stores and prints your data.
Pressing ON/OFF returns you to
RUN mode without storing or
printing.
↵
key to
↑
or
↑
or
] Changes memory page
] Prints all stored data
] Correction Factor
] Enables or disables auto
shut-off
] Scans meter voltages
] This is only used by the
factory
] Enables or disables the
serial port
] Time constant selection
↑ or
↓
key