4 operation, 1 display, 2 keypad – ROTRONIC HP22A User Manual

Page 8: Operation, Display, Keypad, 4operation

E-M-HP22-V2_13

Rotronic AG
Bassersdorf, Switzerland

Document code

Unit

HygroPalm HP22-A hand-held indicator:

User Guide

Instruction Manual

Document Type

Page 8 of 16

Document title

Operation

4.1 Display

The LC display of the HP22 has a backlight which
can be set to be on all the time or whenever a key is
pressed. The backlight can also be disabled.

The upper line corresponds to relative humidity or
dew / frost point and the bottom line corresponds to
temperature.

The display can be configured to show a trend
indicator on each line:

▲: increasing value

▼: decreasing value

In the event of an alarm the display shows the symbol [ ! ] to the right of the value.

For instructions see the following HW4 manual: E-M-HW4v3-F2-006.

4.2 Keypad

ON/OFF:

Turns the instrument on or off
Activates / de-activates HOLD function

MENU:

Press this key to activate the
internal menu. Press this key
again to exit the menu

UP / DOWN:

When the menu is active, use these
keys to navigate the menu, make a
selection or change a value

ENTER:

When the menu is active, press
this key to confirm a selection.