ThermoFisher Scientific Wellwash 4, Service Manual

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Chapter 5: Installation
Thermo Scientific Wellwash
®
4 Mk 2 User Manual Rev.2.3, Cat. no. 1507340 24
5.3.3 Mains supply cable
Warning: Never operate your instrument from a power outlet that has no ground
connection. Never use a mains supply cable (cord) other than the
Thermo Scientific mains supply cable designed for your region.
1.
Ensure that the mains switch at the rear of the pump unit is in the OFF
position.
2. Connect the mains supply cable (cord) to the mains input socket at the rear
of the pump unit. If you need to use any other type of mains supply cable
than supplied, use only cables certified by the local authorities.
3. Connect the instrument to a correctly installed line power outlet that has a
protective conductor that is grounded (earthed).
5.3.4 Changing wash heads
You can change the wash head to either 8-way or 12-way. Lift the head
assembly (Fig. 4.1, item 8), grasp the wash head (Fig. 4.1, item 9) at both ends
and slide it down in the direction of the tips until it clears the end caps. Check
that the two O rings in each end cap are in position and undamaged. To install
the alternative wash head, slide it upwards onto the slots making sure that it is
fully engaged (Fig. 5.7).
Fig. 5.15 Changing the wash head
Note: The wash heads will only fit into the end slots when the raised flange on
the wash head is facing the front.
Remember to check the program card accordingly (8-way or 12-way).
5.4 Operational check
The following procedure should be completed to confirm the correct
functioning of the washer prior to normal use.
1. Check that the wash head is correctly located by means of its guide slots in
the head assembly (Fig. 5.7). The operational check is performed faster with
the 12-way wash head.
2. Add approximately 2 to 3 dl of distilled aqua to the wash bottle and make
sure that both bottle caps are firmly tightened.
3. Switch ON the mains power supply by depressing the POWER ON switch
positioned on the rear panel of the pump unit.
The POWER indicator on the keypad (Fig. 4.2) will be illuminated and a
countdown sequence will begin on the row indicators. The row 12 indicator
will illuminate first followed by row 11, row 10, row 9, and so on, at one-