User Manual

12
Start-up
8.3 Dosing quantity
The dosing unit is set to a pumping volume of 5µl/pump stroke as
standard. This value cannot be changed.
8.4 Selecting the dosing mode
By default, the dosing unit is configured so that it doses at a fre-
quency of 5 Hz once the power supply voltage is connected. The
dosing mode can be pre-selected on the rotary switch for the elec-
tronics once the cover has been removed (see “Fig. 6: Setting the
dosing mode”).
DANGER!
Risk of electric shock!
▶ Before reaching into the device or equipment, switch off the power
supply and secure to prevent reactivation!
▶ Only adequately trained personnel may reach into the device!
Rotary switch for pre-selecting the
dosing mode
Fig. 6: Setting the dosing mode
Making adjustments using the rotary switch for the electronics:
0 Impulse mode
>120 ms
Unit doses precisely 5 µl
(= 1 stroke) and then stops.
Power supply voltage must be at
least 120 ms for this purpose. If the
power supply is then interrupted
for > 2 ms and is subsequently
reconnected, a stroke is initiated, etc.
1 40 Hz frequency mode Unit is in frequency mode and
doses at the selected frequency
once the power supply voltage is
connected.
2 25 Hz frequency mode
3 10 Hz frequency mode
4
5 Hz frequency mode
(standard)
5 5 Hz service mode;
unit stops after
100 cycles
For servicing purposes: Following
connection of the power supply
voltage, the unit operates at a fre-
quency of 5 Hz for precisely
100 pumping cycles and then
stops.
The supply rate can be checked
using this function.
english
Type 7615