and there are 5 LEDs,
:
Figure 7:
Alarm LEDs
Measurement time LED
LEDs of the DHB-4xx
4
alarm LEDs,
indicating the active alarm.
1
measurement time LED,
indicating that the calculation time has not ended.
The unit has a three-colour LED display: red, green and orange.
The unit can automatically change the colour of the display based on the programmable parameters
in the display menu (
lower colour limit
,
upper colour limit
,
lower colour
,
middle colour
and
upper
colour
).
Example:
In a temperature measurement you can program the display to be green when the voltage
is below 10ºC, orange when it is between 10ºC and 50ºC and red for voltages above 50ºC. See section
4�3�- BUTTON FUNCTIONS
The
DHB-4xx
has 4 buttons that allow you to browse the various screens and program the unit (
Table 5: Button functions on the measurement screens�
Button
Short press
Long press (3 s)
-
Enter the setup menu (editing mode)
Display maximum value.
-
Display minimum value.
-
-
Enter the setup menu (display mode)
Delete the maximum value
-
Delete the minimum value
-
-
Delete the alarm LED
12
DHB-402 DHB-424
Instruction Manual