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2 Geneal Description
10
Electrophoresis Power Supply EPS 601 User Manual 18-1130-19 Edition AD
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.
Содержание EPS 601
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