HP 3484A Operating And Service Manual page 18

Section III
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1.
Power switch.
2. Function switch.
3. Sample Indicator. Flashes once for each sample period.
4. Sample Rate Control. Varies sample rate from 1 /second
to 25/second, or stops sampling when placed in HOLD
position.
5. Range switch.
6. Manual T rigger Pushbutton. Instrument samples once
each time pushbutton is pressed and released.
7 . Front Panel Zero. Adjust d isplay to zero with Input
shorted.
8. Filter switch.
9.
Front I nput terminals.
Model 34 84A
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10.
Terminal switch. Selects front or rear input term inals.
11. Rear Input terminals.
12. Remote connector. Allows remote control of Range,
Sampling, Filter. or Ratio mode (3480A/B Option 002).
13. 'Ratio mode switch. Permits manual or remote selection
of Ratio mode (3480A/B Option 002).
14. Ratio Range switch. Selects 10 V or 100 V reference
input range (3480A/B Option 002).
15. Ratio Reference Input terminals.
16.
17.
18.
Power Input connector.
11 5/230 switch. Sets 3480A/B to correspond to line
voltage to be used.
BCD Output connector. Provides BCD output, 1-2-4-8,
" 1" state positive ( 3480A/B Option 003 or 004).
Figure 3-1. Front and Rear Panel.
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