Data Translation DT9871, User Manual

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Appendix A
122
Memory Specifications
Table 18 lists the memory specifications for the analog input subsystem on the DT9871,
DT9871U, DT9872, DT9873, and DT9874 instruments.
Table 18: Memory Specifications
Feature Specifications
Data memory onboard 4 MByte
For Data logger built in, maximum time
before old data is overwritten
a
48 channels @ 10 Hz:
48 channels @ 1 Hz:
48 channels @ 0.1 Hz:
a. Assumes limit detection is off for all channels, and for thermocouple channels,
assumes CJC data is not collected. If power fails, all temperature data in the
system is lost. The channel input type and filter settings are still available after
power on, but the channel and digital I/O labels and channel limits are lost.
30 minutes
5 hours
50 hours