D/A Converter (Dac) Test - Agilent Technologies 1220 Infinity II LC User Manual

Running the Test with Instant Pilot
The test can be started via the command line.
1 To start the test
2 To stop the test
Test Evaluation
The noise on the step should be less than 3 μV.
Probable cause
1
2
1220 Infinity II LC System User Manual
Figure 62 D/A Converter (DAC) Test – Example of Integrator Plot
TEST: DAC 1
RA 00000 TEST:DAC 1
Reply:
TEST:DAC 0
RA 00000 TEST:DAC 0
Reply:
Bad cable or grounding problem between
detector and external device.
Defective detector main board.
Test Functions and Calibration
Diode Array Detector (DAD)
Suggested actions
Check or replace the cable.
Please contact your Agilent service
representative.
9
191