Thermo Scientific SGD-O, Руководство пользователя

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Detector Setup & Pre-Calibration
Procedure
3-2
SGD-O User Guide Thermo Fisher Scientific
Figure 3–1.
5. Measure pins 2(-) and 3(+) for the Vdc output of the detector. Adjust
R35 to obtain an output of 9.6 Vdc on empty pipe. If this voltage is
achieved, attach the lid to the detector housing and skip to Chapter 4
to perform the calibration. Otherwise, continue to step 6.
6. If the output voltage stays at one value and using R35 does not change
the output voltage, there is a high probability that the pre-amp board
requires repair or replacement. Refer to the troubleshooting procedure
in Chapter 9.
If the output voltage will adjust with R35 but will not get up to the 9.6
Vdc required, check the gain jumpers (W1, W2, W3). Refer to Chapter
7 for a detailed discussion of gain adjustments. Once the gain jumpers
are set and the 9.6 Vdc on empty pipe obtained, reattach the lid to the
detector housing and continue to Chapter 4 to perform the calibration.
Note
If the detector output is above 8.0 Vdc, the pipe ID is 6 inches or
smaller, and the measurement range is under 10 PPA, it is acceptable to use
the voltage and continue to the calibration procedure in Chapter 4 .
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