Fluke 80PK-26 Instruction Sheet Download Page 2

Output 

@ 25 

°

C (77 

°

F) = 1.00 mV (reference junction @ 0 

°

C) 

Seebeck Coefficient 

25 

°

C (77 

°

F) = 40.50 

µ

V / 

°

Measurement Time  

(Time Constant): 3.0 seconds for air moving at 3.33 
meters / second (10.9 feet / second) at sea level pressure 
(5 time constants = 1 complete step change, i.e., 15 
seconds) 

Maximum Voltage 

24 V ac rms or 60 V dc 

Maximum Temperature of Tip 

816 

°

C (1500 

°

F) 

Sheath 

Material: 304 Stainless Steel 
Dimensions 

Diameter: 4.8 mm (.19 in) 
Length: 20.32 cm (8 in) 

Bead (sensor) Sheath 

Material: Inconel 600 
Dimensions 

Diameter: 1.5748 mm (.062 in) 
Length: 11.049 mm (.435 in) 

Grounding 

Junction Welded to Sheath. 

Cable 

Length: 1 meter (40 in) 

Insulation 

Material: PVC 

Maximum Temperature: 105 

°

C (220 

°

F) 

Jacket Color: Gray 

Conductors 

Type: K 

Size: AWG #24 stranded (7 strands of #32) 

Handle 

Material: Hytrel 

Maximum Temperature: 125 

°

C (257 

°

F) 

Connector 

Type: Mini-thermocouple connector with .792 mm  
(.0312 in) pin spacing 

Material: Yellow Hytrel 

Maximum Temperature: 1.25 

°

C (257 

°

F) 

Overall Probe Length 

31.9 cm (12.55 in) from tip to end of cable strain relief. 

Protection  

Class 3. Relates solely to insulation and grounding 
properties defined in IEC 348. 

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