Agilent Technologies DP235 User's Guide download pdf (Page 305)

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Contents ▲ 305 ▼ Index

Pressure Cartridge Tests

High-Voltage Accuracy

on Load Test

Check of channel-reference diode in transmission direction.

Autofocus Test Checks the focusing capability of the optical system.

Autofocus test chip required.

Laser Stability Test Measurement of stability of red laser signal.

Electrode/Diode Test Checks the photo diode and current-versus-voltage

performance of the bioanalyzer. Electrode/diode test chip

required.

Diagnostics Test Purpose

Pressure Offset Test The vacuum system of the pressure cartridge consists of a

pump and the corresponding tubes. This test calibrates the

pressure sensors to zero.

Pressure Control Test Checks if the bioanalyzer is able to hold the working pressure

of -140 mbar. During the test pumps stay on, while the system

tries to regulate pressure to be kept at -140 mbar. Cell

Autofocus test chip required.

Diagnostics Test Purpose

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