Measurement-computing DataShuttle Manuale Utente Pagina 22

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2-4 DataShuttle - Technical Notes
11-13-01
DataShuttle and DynaRes
Power Supplies
A Note on Power Supplies – The DataShuttle supplies the following voltages to power transducers, strain
gauges, etc. The currents available to the user are limited as follows:
Voltage Tolerance
Maximum Current
(mA)
Output Impedance
(ohms)
Vref(6.9V) ±5% 10 <1
+5V 4.5 to 5.0V 100 <50
+15V ±3% 10 100
-12V ±3% 10 100
Users of the open collector digital outputs and buffer amplifiers should be careful not to exceed these limits.
Any power used from these supplies will add to the specified supply current used by the DataShuttle.
*Except DS-5B models
Analog Auxiliary Component Area on the DataShuttle
R2
R3/C1 R1
R
4
R5
Placement of capacitor
C1 or R3 Resistor for
current measurement.
R2
R3/C1 R1
R
4
R5
Placement of holes
in auxiliary component
area for a single channel
Screw
Terminal
R2
R3/C1 R1
R
4
R5
Placement of resistors
R1, R2 and R5.
R2
R3/C1 R1
R
4
R5
Placement of R3 may
be to one of five places
on the right side of the
resistor.
R2
R3/C1 R1
R
4
R5
Board
Screw
Terminal
Vref
Ground (A)
COM
+15V
12V
GND (A)
Board + Board
Board +
+ Screw Terminal
R4 may be in one of
two holes on the right
side to one of 4 holes
on the left.
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