Measurement Computing DataShuttle - Manual (Page 22)

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
R 2
R 3 /C 1 R 1
R
4
R 5
Placem ent of capacitor
C 1 or R 3 R esistor for
current m eas urem ent. )LJ
R 2
R 3 /C 1 R 1
R
4
R 5
Placem ent of holes
in auxiliary com ponent
area for a single channel
)LJ
Screw −
Term inal
R 2
R 3 /C 1 R 1
R
4
R 5
Placem ent of resistors
R 1, R 2 and R 5. )LJ
R 2
R 3 /C 1 R 1
R
4
R 5
Placem ent of R 3 m ay
be to one of five places
on the right side of the
resistor.
)LJ
R 2
R 3 /C 1 R 1
R
4
R 5
)LJ
Board −
− Screw
Term inal
Vref
G round (A)
C O M
+15V
−12V G N D (A )
Board + Board − Board + + S crew Term inal
R 4 m ay be in one of
tw o holes on the right
side to one o f 4 holes
on the left.