3 Specifications and EnvironmentalConditions
3.1 Specifications
ResistanceRange 0
Ω
to500 k
Ω
ResistanceAccuracy, PRT, one
year
†
0
Ω
to25
Ω
:0.002
Ω
25
Ω
to400
Ω
:0.008% (80 ppm) of reading
ResistanceAccuracy, thermistor,
oneyear
†
0
Ω
to2k
Ω
:0.4
Ω
2k
Ω
to200 k
Ω
:0.02% (200 ppm) of reading
200k
Ω
to500 k
Ω
:0.03% (300 ppm) of reading
TemperatureRange PRT:–200°C to 962°C (–328°F to 1764°F)
Thermistor:–50°C to 150°C (–58°F to 302°F)
TemperatureAccuracy, PRT
†
–200°Cto 100°C: ±0.025°C (0.045°F)
100°Cto 400°C: ±0.05°C (0.09°F)
400°Cto 800°C: ±0.1°C (0.18°F)
800°Cto 962°C: ±0.15°C (0.27°F)
TemperatureAccuracy,
2.25k
Ω
thermistor
†
–50to 25°C: ±0.005°C (0.009°F)
25°Cto 50°C: ±0.01°C (0.018°F)
50°Cto 75°C: ±0.03°C (0.054°F)
75°Cto 100°C: ±0.08°C (0.144°F)
TemperatureAccuracy,
10k
Ω
thermistor
†
0to 50°C: ±0.005°C (0.009°F)
50°Cto 75°C: ±0.01°C (0.018°F)
75°Cto 100°C: ±0.02°C (0.036°F)
100°Cto 125°C: ±0.05°C (0.09°F)
125°Cto 150°C: ±0.1°C (0.18°F)
TemperatureAccuracy,
100k
Ω
thermistor
†
0to 50°C: 0.006°C (0.011°F)
50°Cto 150°C: 0.009°C (0.016°F)
ResistanceResolution 0.001
Ω
TemperatureResolution 0.001°C,F, K, R
Probe IEC-751or DIN-43760 PRT
Callendar-VanDusen calibrated PRT; nominal 100
Ω
ITS-90c alibrated 25
Ω
or100
Ω
PRT
YSI-400series or equivalent 2252
Ω
thermistor
Steinhart-Hart thermistor polynomial; nominal R(25°C) 2k
Ω
to
100k
Ω
ProbeConnector HartScientific INFO-CON connector
MaximumAcceptable Probe Lead
Resistance
10
Ω
ProbeExcitation Current PRT:0.5 mA
Thermistor:5
μ
A
MeasurementPeriod 1second