Product Description: The 80PT-25 is a temperature probe from Fluke. Use an electrical probe to test equipment and measure currents and voltages. Temperature probes convert temperature into electrical signals to be read by a meter.
Additional Features:
- Type: T, Copper/Constantan
- Measurement Range of Stainless Steel Probe: -196 °C to 350 °C (-320.8 °F to 662 °F)
Accuracy: (With respect to ANSI MC96.1 Standard Limits of Error)
- Note: All error calculations should be done in °C and then scaled to °F.
Range and Accuracy (% of reading)
- -196 °C to -150 °C; (-320.8 °F to -238 °F): ±3 %
- -150 °C to -40 °C; (-238 °F to -40 °F): ±2 °C
- -40 °C to 0 °C; (-40 °F to 32 °F): ±1 °C
- 0 °C to 350 °C; (32 °F to 662 °F): Max (±1 °C, ±0.75 % of reading)
Output
- @ 25 °C (77 °F) =1.00 mV (reference junction at 0 °C)
- Seebeck Coefficient @ 25 °C (77 °F) = 40.50 µV / °C
- Measurement Time (Time Constant): 3.0 seconds in 100 °C still water at sea level pressure (5 time constants = 1 complete step change, i.e., 5 seconds)
- Maximum Voltage: 24 V ac rms or 60 V dc
- Maximum Temperature of Tip: 816 °C (1500 °F)
Sheath
- Material: 316 Stainless Steel Dimensions
- Diameter: 3.4036 mm (.134 in)
- Length: 10.16 cm (4 in)
- Tip: 25 ° conical
- Grounding Junction welded to sheath
Cable
- Length: 40 inches (1 meter)
- Insulation
- Material: PVC
- Maximum Temperature: 105 °C (221 °F)
- Jacket Color: Gray
- Food Service Limitation: The cable should not come in contact with food
Conductors
- Type: T
- Size: AWG #24 stranded (7 strands of #32)
Handle
- Material: Hytrel (food service grade)
- Maximum Temperature of Food in Contact with Handle: 65 °C (150 °F)
Connector
- Type: Mini-thermocouple connector with .792 mm (.0312 in) pin spacing
- Material: Blue Hytrel (food service grade)
- Maximum Temperature: 125 °C (257 °F)
- Overall Probe Length: 22.23 cm (8.75 in) from tip to end of cable strain relief
- Protection Class 3. Relates solely to insulation and grounding properties defined in IEC 348.
Measurement Considerations
Instrument Compatibility
The 80PT-25 is compatible with any temperature measuring instrument that accepts Type K thermocouples, has a miniature thermocouple connector, and has cold reference junction compensation. Accuracy of the temperature-measuring instrument must be considered along with the 80PT-25 accuracy specification to determine the overall accuracy of the combination.
Temperature Limitations
The tip of the 80PT-25 has a continuous temperature rating of 350 °C (662 °F). However, the opposite end of the sheath nearest the handle should not be subjected to temperatures greater than 125 °C. This is the maximum temperature limitation of the Hytrel handle. See Food Service Limitations.
Exposure Limitations
The sheath material of the 80PT-25 is stainless steel. It should not be exposed to halides or sulfides.
Food Service Limitations
The 316 stainless steel probe is suitable for contact with hot or cold foods within the specified temperature range of the probe. However, the handle is made of Hytrel 5556 which is suitable for repeat food contact only under the following conditions: food temperature under 65 °C (150 °F), food alcohol content under 8 %. Food may be wet, dry, or fatty. Also, the cable should not come in contact with food.
Measuring Technique
The 80PT-25 should be inserted at least 31.75 mm (1.25 in) into the substance to be measured to minimize the shunting effect of the sheath.
