In-Built Safety Features; Unpacking And Installation - Amersham Pharmacia Biotech EPS 601 Manual Del Usuario

2.2 Built-in safety features
The EPS 601 has been tested and complies with the IEC 61010-1 (EN 61010-1) electrical safety
standard. The power supply also has several built-in safety functions. Error messages are also shown on
the display (see 7. Trouble shooting):
1. Functional earth leakage.
Should the power supply be connected to an electrophoresis unit that has a leakage path to earth, the
EPS 601 will detect this fault and the high voltage is turned off.
2. Start current check.
To ensure that an electrophoresis unit is connected correctly, the power supply checks that the resistance
is not higher than a specified limit at a low safety voltage (<40V). If this resistance is too high, the
voltage is turned off. Too high a resistance can also be caused by using buffers with extremely low
conductivity. The high voltage is also turned off in this case and an error message is shown. This
function can be disabled to perform certain applications (see 5.4 Optional programming).
3. Sudden load change detection.
This function prevents accidents under running conditions due to a break in the electrical circuit such as
a bad connection to the electrophoresis unit. The high voltage is turned off in such an event.
Error messages for sudden fails are also shown on the display.

3. Unpacking and installation

Unpacking
Check the contents against the packing list supplied. Inspect for any damage that may have occurred
during transit. Report any damage immediately to your local Amersham Pharmacia Biotech
representative and to the transport company concerned.
Mains connection
Select the appropriate voltage range, 100-120 or 220-240 V. See Fig. 2 inside front cover.
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Warning! If the power supply is connected to 220-240 V with the range set to 100-120 V, the
instrument can be severely damaged.
Select the appropriate mains cable and connect one end to the mains socket on the EPS 601 power
supply (see Fig. 2, inside front cover) and the other end to an AC grounded outlet.
Connection of the electrophoresis unit(s)
Connect the leads from the electrophoresis unit (red to red, and black or blue to blue), see Fig. 1 inside
front cover. The red lead is the positive and black or blue is the negative.
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Warning! Use only undamaged electrical wire and equipment approved for the voltage you will use.
Two electrophoresis units can be run simultaneously with the same program. Please remember to
double the limiting current and power if two electrophoresis units are run at the same time. The
voltage will be the same regardless of the number of units.
EPS 601 - User Manual
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