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206 Index
M (continued)
Memory
query readings stored
, 97
retrieving measurements stored, 98
Message Available Bit (MAV), 60, 62
monitoring, 62
Minimum Average Operation Value, 74
Modules
description
, 15
logical address switch, 16
Multimeter, 60–63
application examples, 52
error messages, 185–191
error queue, 155
functional connections, 19–22
general information, 15
measurements
externally triggered measurements
, 54
making, 53–56
maximizing accuracy, 56
maximizing speed, 55
measurement format, 54
single measurements, 54
using FETCh? command, 53, 98, 198
using INITiate commands, 53
using MEASure commands, 53
using READ? command, 53
programming the, 15, 22–23
range and resolution tables, 70–71
setup, 15–23
specifications, 171–184
status system, 58, 60–63
synchronizing with switch module, 57–59, 64
triggering, 45–51, 156–161
N
Noise
errors
, 28
ground loops, 28
magnetic loops, 28
pickup, minimizing, 26
power line voltage, 27
rejection, 27
Normal Mode Rejection (NMR), 27, 39
NPLC
increasing measurement speed
, 197
integration time, 123, 132, 140, 148
querying, 123, 132, 140, 148
resolution, 15, 38
setting, 197
NULL Offset Value, 78
Number
of digits
, 15, 38, 182
specifying, 38
versus PLC, 15
of power line cycles
versus resolution
, 38
power line cycles (NPLC), 15, 38
Numeric Parameters, 69
O
Offset Voltage, 28
measuring/removing, 34
*OPC, 164
*OPC?, 165
Operating Characteristics
ac current
, 176
ac voltage, 176
dc current, 173
dc voltage, 173
frequency characteristics, 178
period characteristics, 178
Operation Status Bit (OPR), 58
Optional Parameters, 69
Output Buffer, 60
transfer readings to, 98, 113
OUTPut Subsystem, 111–112
OUTPut:TTLTrg[:STATe], 111
OUTPut:TTLTrg[:STATe]?, 112
Overload
errors
, 34
indication, 40
Overrange, 182
P
Parameters, 69
Parts-Per-Million (PPM), 182
Period
characteristics
, 177–178
measurements
aperture time
, 136
autorange, 138
connections, 19
errors, 36
integration time, 136
range, 137
range/resolution, 91, 106
Plug&Play
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Power Dissipation Effects, 31