Bio-Rad Model 2110 Fraction Collector - Manual (Page 7)

carousel where tube changes are initiated upon reaching a predetermined
drop count (1-999 drops) or time interval (0.05-99.9 minutes), or upon
command from an external source.
The silicone drop former insures uniform drop size for accurate drop
count measurement. The drop former will accommodate either 1 ¼
8
-inch or
1 ¼
16
-inch inlet tubing, without the need for additional fittings.
The Model 2110 Fraction Collector is spill-proof and solvent resistant.
A drain tube at the rear of the case channels all spills to waste. The mem-
brane front panel is sealed to the case and the carousel drive is positioned
in such a way that it will not be affected by spills.
Section 3
Unpacking and Voltage Conversion
3.1 Unpacking Instructions
Lift the instrument out of its packing by grasping the instrument case.
Do not lift by the drop arm. Remove the power cord and bag of acces-
sories. Remove the fraction collector from its protective bag. Check off all
parts against the supplied packing list. You may want to retain the origi-
nal packaging material in the event the instrument needs to be returned for
service. If repackaging is necessary, be careful to position the carousel so
that it is not resting against the motor drive gear.
Warning: The Model 2110 Fraction Collector is shipped in its 120 V
version. For 220 V operation, refer to the procedure below.
3.2 Voltage Conversion
Prior to connecting the power cord to the power entry module and
power mains, make sure the voltage indicated on the fraction collector
power entry module matches your line voltage. If it does not, use the
following procedure to make the conversion. (See Figure 3.1.)
1. Insure that the unit is disconnected from the wall socket.
2. Remove the fuse drawer with a small-blade screwdriver or similar tool.
3. Pull the fuse holder out of the fuse drawer and ensure that the voltage
shown in the window corresponds to the voltage you are using (100, 120,
220, 240 V ). To change the voltage, grasp the fuse drawer and withdraw
it (see Figure 3.1). Rotate the fuse drawer so that the voltage shown is cor-
rect, and reinsert it. The fuse holder is keyed and cannot be installed
improperly. The Model 2110 Fraction Collector uses 0.20 A fuses for
100/120 V operation, and 0.10 A fuses for 220/240 V operation.
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