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Table 3. Input A and B Sensitivity.
Volts Maximum/Minimum

Calibration Procedure For Electronic Counter, Model Pm6681/656 Page Navigation
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TB 9-6625-2331-24
(c) AUTO to select Manual X1.
keys, as needed, to set trigger level to 0.000V.
Press SET A and use
(3)
Press ENTER.
(4)
keys, as needed, to set trigger level to 0.000V.
Press SET B and use
(5)
Press ENTER.
(6)
Connect signal generator to TI INPUT A 50Ω/1MΩ.
(7)
(8)
Set signal generator for a 1 kHz, -16dBm output.
(9)
Adjust Offset A (R18) (fig. 2.) until TI indicates 0.500 0.001.
(10) Move signal generator connection to TI INPUT B 50Ω/1MΩ.
(11) Press SWAP.
(12) Adjust Offset B (R44) (fig 2.) until TI indicates 0.500 0.001. Note as V.
Front
Figure 2. Top View.
(13) Disconnect equipment from TI.
8


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