ThermoFisher Scientific Wellwash 4, Service Manual

Page: 55 / 156

Chapter 6: Operation
Thermo Scientific Wellwash
®
4 Mk 2 User Manual Rev.2.3, Cat. no. 1507340 31
6.5 Program selection
Choose an appropriate card for the wash routine. Plug the card into the slot
located at the base to the right of the washer unit.
Note: Before inserting any program card, ensure that it is clean and dry.
Wiping the surfaces with a soft dry cloth will suffice. If any liquid is
present on the card, a malfunction of the program may occur.
Note 1: If a run is started without a program card or any row selection, the
instrument will signal an error by sounding the audible warning device
3 times.
Note 2: If a run is started with the rows selected but with no program card
inserted, the instrument aspirates the rows selected and returns to its
idle state with the wash head lowered into the priming reservoir.
Note 3: If a run is started without any rows selected but with a program card
fitted, the instrument will aspirate all the rows in accordance with the
card configuration, i.e., 8-way or 12-way wash head.
The preprogrammed wash cards will dispense and aspirate the plate row by
row for the number of times indicated on the card. There are four cards which
can be inserted either side up to perform the wash routine indicated on the side
facing up.
Fig. 6.2 Preprogrammed card: three washes with an 8-way wash head