Description

The Fluke 5608 Secondary PRT with Calibration Options is designed for precise temperature measurement in a variety of applications. With a wide temperature range of –200 °C to 500 °C, this probe is ideal for use in laboratories, manufacturing, and research settings.

Featuring a nominal resistance of 100 Ω at 0.01 °C and a temperature coefficient of 0.0039250 Ω/Ω/°C, the Fluke 5608 provides accurate and reliable measurements.

Fluke 5608 Key Features

The Fluke 5608 Secondary PRT with Calibration Options offers a range of key features, including:

Temperature range: –200 °C to 500 °C
Nominal resistance: 100 Ω at 0.01 °C
Temperature coefficient: 0.0039250 Ω/Ω/°C
Relative accuracy: ± 0.007 °C at –200 °C
Short-term repeatability: ± 0.007 °C at 0.010 °C
Drift: ± 0.01 °C at 0.010 °C
Hysteresis: ± 0.01 °C maximum
Sensor length: 30 mm ± 5 mm (1.2 in ± 0.2 in)
Sensor location: 3 mm ± 1 mm from tip (0.1 in ± 0.1 in)
Sheath material: Inconel™ 600
Minimum insulation resistance: 500 MΩ at 23 °C, 20 MΩ at 500 °C

Who Needs the Fluke 5608?

The Fluke 5608 Secondary PRT with Calibration Options is designed for use in a variety of applications, including:

Research and development laboratories

Manufacturing and quality control settings

Industrial process control and monitoring

Fluke 5608 Applications

Temperature measurement in cryogenic applications
High-temperature measurement in industrial processes
Temperature control in laboratory settings
Measurement of temperature in aerospace applications
Temperature monitoring in power generation and transmission

Why Buy Fluke 5608 from mme-ae?

The Fluke 5608 Secondary PRT with Calibration Options is available from mme-ae, a leading supplier of high-quality temperature measurement instruments. With a wide range of products and expert technical support, mme-ae is the perfect partner for all your temperature measurement needs.

Fluke 5608 Specifications

Specifications

Temperature range

5608: –200 °C to 500 °C
5609: –200 °C to 670 °C

Nominal resistance at 0.01 °C

100 Ω ± 0.5 Ω

Temperature coefficient

0.0039250 Ω/Ω/°C

Relative Accuracy^[1]

± 0.007 °C at –200 °C
± 0.008 °C at 0 °C
± 0.020 °C at 420 °C
± 0.027 °C at 660 °C

Short-term repeatability^[2]

± 0.007 °C at 0.010 °C
± 0.013 °C at max temp

Drift^[3]

± 0.01 °C at 0.010 °C
± 0.02 °C at max temp

Hysteresis

± 0.01 °C maximum

Sensor length

30 mm ± 5 mm (1.2 in ± 0.2 in)

Sensor location

3 mm ± 1 mm from tip (0.1 in ± 0.1 in)

Sheath material

Inconel™ 600

Minimum insulation resistance

5608: 500 MΩ at 23 °C, 20 MΩ at 500 °C
5609: 500 MΩ at 23 °C, 10 MΩ at 670 °C

Transition junction temperature range^[4]

–50 ºC to 200 °C

Transition junction dimensions

71 mm x 12.5 mm (2.8 in x 0.49 in)

Minimum immersion length^[5]
(<5 mK error)

5608: 80 mm (3.1 in)
5609: 100 mm (3.9 in)

Maximum immersion length

305 mm (12 in)

Response time^[5]

5608: 9 seconds typical
5609: 12 seconds typical

Self heating (in 0 °C bath)

5608: 75 mW/°C
5609: 50 mW/°C

Lead-wire cable type

PTFE 24 AWG

Lead-wire length

1.8 m (6 ft)

Lead-wire temperature range

–50 °C to 250 °C

Calibration

^[1] Includes short-term repeatability and 100 hr drift. Calibration will add additional uncertainties.

^[2] Three thermal cycles from min to max temp, includes hysteresis, 99.9 % confidence (k=3)

^[3]After 100 hours at max temp, 99.9 % confidence (k=3)

^[4] Temperatures outside this range will cause irreparable damage. For best performance, transition junction should not be too hot to touch.

^[5] Per ASTM E 644

Calibration Uncertainty for accredited† calibration
Temperature	Expanded Uncertainty (k=2)
–197 °C	0.025 °C
–80 °C	0.025 °C
–38 °C	0.025 °C
0.01 °C	0.025 °C
156 °C	0.030 °C
231 °C	0.030 °C
419 °C	0.035 °C
660 °C	0.050 °C
Note: Calibration uncertainties depend on the uncertainties of the lab performing the calibration. Subsequent calibrations of this probe performed with different processes, at different facilities, or with changed uncertainty statements may state different uncertainties. †Lab code 200348-0

Datasheet

Datasheet (PDF)PDF

User Manual

User manual (PDF)PDF

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