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CR300-Series Datalogger
44
TABLE 7-2. Analog Voltage Measurement Accuracy Offsets
Range
(mV)
Differential
with Input
Reversal
(µV)
Differential
without Input
Reversal
(µV)
Single-Ended
(µV)
–100 to +2500
±20
±40
±60
–34 to +34
±6
±14
±20
TABLE 7-3. Analog Voltage Measurement Speed
1,2
f
N1
(Hz)
Multiplexed
3
Measurement
With Input
Reversal
Without Input
Reversal
Time
(ms)
Rate
(Hz)
Time
(ms)
Rate
(Hz)
4000
2.9
345
1.4
714
400
14.6
68.5
7.3
137
50/60
103
9.71
51.5
19.4
1
Default settling time of 500 µs
2
Total analog voltage measurement speed = multiplexed
measurement time × number of repet 0.8 ms
3
Refers to multiplexing circuitry internal to the CR300.
TABLE 7-4. Analog Voltage Measurement Input Resistance and Current
f
N1
(Hz)
Input Resistance
(G
Ω
)
Input Current at 25 °C
(nA)
4000
0.3
±13
50/60
5
±0.8
7.2 Resistance Measurements – Specifications
Four- and six-wire full-bridge and two-, three-, and four-wire half-bridge
measurements using voltage excitation.
Terminals:
SE
terminals
1-6
DIFF
terminals
1H/1L - 3H/3L
Excitation terminals
VX1-VX2
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