Fluke Calibration 5609 Secondary PRT Probe

Temperature range
 

–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
 
 
 

± 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
 

± 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
 

500 MΩ at 23 °C, 10 MΩ at 670 °C

Transition junction temperature range

–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 mK error)

100 mm (3.9 in)

Maximum immersion length

305 mm (12 in)

Response time
 

12 seconds typical

Self heating (in 0 °C bath)
 

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