Temperature Calibrator (RTD + TC) / EN
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03/27/2020 Version No. 1 30
Ohm Source (Accuracy is based upon 4W connection):
Range(
Ω
)
Excitation Current
from Measurement
Device
Accuracy (% of Output
+ Floor)
1.0
Ω
to 400.0
Ω
0.5mA to 5mA
0.015%+0.1
Ω
400.0
Ω
to 1500.0
Ω
0.05mA to 5mA
0.015%+0.5
Ω
1500.0
Ω
to 4000.0
Ω
0.05mA to 5mA
0.015%+0.5
Ω
4000.0
Ω
to 7000.0
Ω
0.05mA to 5mA
0.03%+1
Ω
For 3W ohm source, assuming all three test leads are matched, add 0.05 Ω (0.00
Ω~400.00 Ω), 0.2 Ω (400.0 Ω~4000.0 Ω),
and 1 Ω (4000.0Ω~7000.0Ω) to the
specifications.
Driving voltage<1.7V; Temperature coefficient
：
±(0.002% of r 0.002% of
range)/
°
C (<18
°
C or >28
°
C)
RTD resolution in
℃
:
Range
Resolution (measure)
Resolution (source)
-200°C to 0°C
0.1°C
0.1°C
0°C to 800°C
0.01°C
0.1°C
RTD measure in
℃
: