Hart 5616 Temperature Standard Specifications

	*Model 5616 Secondary Reference Standard Specification*
	*Hart Scientific Calibration Products > Thermometer Probes Secondary Standards >*
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	Secondary Reference Temperature Standard, PRT, Model 5616 - Specifications

Parameter	Value
Temperature Range	-200°C to 420°C
Nominal Resistance at 0.01°C	100Ω ±0.5Ω
Temperature Coefficient	0.003925Ω/Ω/°C nominal
Accuracy ^Note1	See footnote
Short-term Repeatability ^Note2	±0.010°C at 0.010°C (see footnote)
Drift ^Note3	±0.010°C at 0.010°C (see footnote)
Hysteresis	±0.010°C maximum
Sensor Length	50.8mm
Sensor Location	6.0mm ±2.5mm from tip
Sheath Diameter Tolerance	±0.08mm
Sheath Material	INCONEL® 600
Minimum Insulation Resistance	500MΩ at 23°C
Transition Junction Temp Range ^Note4	-50°C to 150°C (see footnote)
Transition Junction Dimensions	76.2mm x 9.5mm
Minimum Immersion Length ^Note5 (< 5mK error)	102mm
Maximum Immersion Length	254mm
Response Time ^Note5	8 seconds typical
Self Heating (in 0°C bath)	60mW/°C
Lead-wire Cable Type	Teflon jacketed cable, Teflon insulated conductors, 24 AWG stranded, Silver plated copper.
Lead-wire Length	182.9cm ±2.5cm
Lead-wire Temperature Range	-50°C to 150°C
Calibration	NIST-traceable calibration

Note¹	Accuracy is a difficult term when used to describe a resistance thermometer. The simplest way to derive "accuracy" is to combine the probe drift specification and calibration uncertainty with readout accuracy at a given temperature.
Note²	Three thermal cycles from minimum to maximum temperature, includes hysteresis, 99.8% confidence.
Note³	After 100 hours at maximum temperature, 99.8% confidence.
Note⁴	Temperatures outside this range will cause irreparable damage. For best performance, transition junction should not be too hot to touch.
Note⁵	Per ASTM E 644

Footnote Calibration Uncertainty

Temperature	Expanded Uncertainty (K = 2)
-197°C	0.012°C	Note: Laboratories may periodically reevaluate their uncertainties. Calibration uncertainties depend on the calibration process, the standards used, and the instruments performance.
-80°C	0.012°C
-38°C	0.011°C
0°C	0.009°C
156°C	0.011°C
230°C	0.013°C
420°C	0.021°C