Product Overview and Specifications
Measurement Specifications
1
1-15
Measurement Specifications
Accuracy specifications generally apply with medium and slow sample rates (unless otherwise noted), after a warm-up
time of 1 hour, and within an environment temperature range of 18 °C to 28 °C, and may depend on the channel. The
confidence level for accuracy specifications is 95 % within 1 year of calibration.
Scan rate
Fast ..................................................................... 10 channels per second max (0.1 seconds per channel)
Medium ............................................................... 1 channel per second (1 second per channel)
Slow .................................................................... 4 seconds per channel
Display Resolution
................................................ 4 ½ to 6 ½ digits, depending on function and Sample Rate (see
Measurement Characteristics tables below to find the display
resolution of temperature readings)
PRT/RTD
Temperature Range
..............................................
−
200 °C to 1200 °C (depending on the sensor)
Resistance Range
................................................. 0
Ω
to 4 k
Ω
Offset Compensation
0
Ω
to 400
Ω
, 4-wire........................................ automatic current reversal
400
Ω
to 4000
Ω
or 3-wire .............................. none
Source Current Reversal Interval (0
Ω
to 400
Ω
range)
Fast sample rate ............................................. 2 ms
Medium sample rate ....................................... 250 ms
Slow sample rate ............................................ 250 ms
Maximum Lead Resistance (4-wire
Ω
)
................ 2.5 % of range per lead for 400
Ω
and 4 k
Ω
ranges.
PRT/RTD Resistance Accuracy
Accuracy is given as ± (% of measu ohms). Basic accuracy is for 4-wire PRT/RTD using medium or slow sample
rate. When using 3-wire PRT/RTD add 0.013
Ω
to the accuracy specification for internal resistance mismatch and voltage
offset if using Channel 1, or add 0.05
Ω
if using channels x01 through x20. When using Fast sample rate add the number
given in the table to the accuracy specification. The 4 k
Ω
range accuracy specification can be decreased by 0.06
Ω
if
using Slow sample rate. If the environment temperature is outside the specified range, multiply the temperature coefficient
numbers by the temperature deviation and add to the accuracy specification.
Range
DAQ-STAQ Module High-Capacity Module
Fast Sample Rate
T.C./ °C Outside 18 °C to
28 °C
0
Ω
to 400
Ω
0.002 % + 0.002
Ω
0.003 % + 0.003
Ω
add
0.003
Ω
0.0001 % + 0.0008
Ω
400
Ω
to 4 k
Ω
0.004 % + 0.1
Ω
0.006 % + 0.1
Ω
add 0.08
Ω
0.0001 % + 0.008
Ω
Summary of Contents for 1586A
Page 6: ...1586A Users Manual iv Error Messages 7 3 Troubleshooting 7 20...
Page 8: ...1586A Users Manual vi...
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Page 42: ...1586A Users Manual 2 10 2 3 4 1 hcn018 eps Figure 2 6 Relay Card Installation...
Page 44: ...1586A Users Manual 2 12 hcn032 eps Figure 2 7 DAQ STAQ Multiplexer Installation...
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