Srs-labs SR850 Manual de usuario descargar pdf (Pagina 251)

8-5

SR850 Service

[GAIN/TC]

Rotate the knob to select 100 mV full scale

If the R reading (top display) is less than 1 mV, then proceed to the next step. If the reading is

greater than 1 mV, adjust the Voltage Input Offset pot until R is less than 1 mV.

11. Press

Rotate the knob to select 1 mV full scale

If the R reading is less than 0.02 mV then proceed to the next step. If the reading is greater than

0.02 mV, adjust the Voltage Input Offset pot until R is less than 0.02 mV.

12. Remove the terminator from the A input. Leave the inputs open to adjust the current input offset.

Press

[INPUT]

<Input Source> Twice to select I

<Grounding> select Ground

<Coupling> select DC

[GAIN/TC]

Rotate the knob to select 100 nA full scale

If the R reading (top display) is less than 1 nA, then proceed to the next step. If the reading is

greater than 1 nA, adjust the Current Input Offset pot until R is less than 1 nA.

13. Press

Rotate the knob to select 1 nA full scale

If the R reading is less than 0.02 nA then proceed to the next step. If the reading is greater than

0.02 nA, adjust the Current Input Offset pot until R is less than 0.02 nA.

14. This completes the offset and common mode adjustment procedure.

15. Turn the unit OFF. Replace the magnetic shield at the front of the Analog board and replace the

card cage cover. Tighten the two cover screws. Replace the top lid. The lid slides forward and

down to engage the clip at the center front. Replace the four black screws to secure the lid.

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Srs-labs SR850 Manual de usuario Pagina 251