Data Translation DT9800 Series, User Manual

Page: 94 / 162

Chapter 4
82
Continuous A/D Operations (cont.)
Set up buffering (see page 93 ).
Configure the subsystem using
olDaConfig .
1
Deal with messages and buffers
(see page 95 ).
Stop the operation (see page 98 ).
Clean up the operation (see page 99 ).
Start the operation with olDaStart .
Continued from previous page.
Note: To convert a voltage to temperature, linearize the voltage
for the specified thermocouple type, then subtract the CJC
temperature (10 mV per
°
C) from the linearized value. Refer to
the Omega Complete Temperature Measurement Handbook and
Encyclopedia for more information on linearizing values.
1
After configuration, if using an internal clock, you can use
olDaGetClockFrequency to get the actual frequency that the internal pacer
clock could achieve; if using internal retrigger mode, you can use
olDaGetRetriggerFrequency to get the actual frequency that the internal
retrigger clock could achieve.