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Appendices
Specifications
A
A-15
Input Voltage
30V maximum
-4V minimum
Isolation
none
dc-coupled
Threshold
1.4V
Hysteresis
500 mV
Trigger Inputs
Input Voltages
contact closure and TTL compatible
“high” =2.0V min, 7.0V max
“low” = -0.6V min, 0.8V max
Isolation
None
dc-coupled
Minimum Pulse Width
5 µs
Maximum Frequency
5 Hz
Specified Conditions
The instrument must be in the quiescent state, with no interval scans in process, no
commands in the queue, no RS-232 activity, and no front panel activity if the latency and
repeatability performance is to be achieved.
Maximum Latency
Latency is measured from the edge of the trigger input to the start of the first channel
measurement for the Specified Conditions (above).
540 ms for fast rate, scanning DCV, ACV, ohms, and frequency only
610 ms for fast rate, scanning any thermocouple or 100 mV dc channels
500 ms for slow rate, scanning DCV, ACV, ohms, and frequency only
950 ms for slow rate, scanning any thermocouple or 100 mV dc channels
Repeatability
3 ms for the Specified Conditions (above)