2. Operation
2.1 Placement of instrument
Heating block must be set on a plain and dry surface at room temperature.
2.2 Operation instructions
Connect the heating block to the mains. Switch on the instrument with
the power switch located on the back side. After powering on, the in-
strument is initialised, a signal tone sounds and the version number
(e.g. r 1.01) briefly appears in the left upper display. After that, the un-
derline characters appear on both displays, the heating block is in sleep
mode.
2.3 Programme selection
X
- keys
Selection of a preprogrammed temperature. The last used temperature
is always displayed first. The keys operate in tip-scroll mode. Only pro-
grammed temperatures are displayed. The temperature values are al-
ways displayed in low-to-high order.
Y
- keys
Selection of a preprogrammed time. The last used time is always dis-
played first. The keys operate in tip-scroll mode. Only programmed
times are displayed. The time values are always displayed in short-to-
long order.
W
- keys
Pressing the W - key starts the selected programme.
During the warm-up phase, the WAIT-LED and the selected temperature
are flashing in the display. When the desired programme temperature
is reached, the RUN-LED starts flashing and the selected time starts to
run. When the programme terminates, a signal tone sounds for 60 sec
and "End" appears in the time display.
If the W- key is not pressed within 5 sec after the programme se-
lection, the programme returns into sleep mode.
If the actual temperature of a heating unit exceeds the selected temper-
ature, the programme is not started. "HIGH" appears in the upper dis-
play; the heating unit must cool down first. During the warm-up phase,
the current temperature can be displayed by pressing the X - key.
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