Work Session; Beeper - Tintometer Lovibond RD 125 Mode D'emploi

2.

Work session

This section describes the use of the reactor for a standard application.
For further applications please refer to "Function schematics" (see page 20).
After the unit is switched on (main switch, reverse side, position I) the keypad
automatically shows the last selected temperature and time span.
The corresponding LEDs are lighted.
After switching on the block heating does not commence automatically.
For heating up the unit press the "Heat" key.
After pressing this key the Heat LED is lighted.
Before and after pressing the "Heat" key temperature and time span still can be
changed.
During heating up the Temperature LED will light intermediately, when the selected
temperature is reached the Temperature LED is lighted permanently.
By pressing the "Start" key the timer starts the work cycles corresponding to the cho-
sen time span (indication by Time LED). Starting the work cycle the Time LED changes
from lighted to flashing.
When the work cycle ends Time LED and Temperature LED are lighted while the Heat
LED is off.
At the end of the work cycle the heater is switched off.
3.

Beeper

Select temperature or time:
Switch heater on:
Switch heater off:
Temperature reaches the selected value:
Start of countdown:
End of countdown:
Pressing a key which is inactive
(at the moment):
Malfunction:
RD 125_7b 01/2020
short double beep
(two frequencies)
long beep (one frequency)
long beep (one frequency)
8 x short beep
(two frequencies)
long beep (one frequency)
16 x short beep
(two frequencies)
short beep
(one frequency)
Continuous beep (2 frequencies)
until the instruments is switched
off with the main switch
(position "O"). In this case the LED
combination according pages 23
allows a failure definition.
19