Fluke 80PK-1 User Manual

Instruction Sheet

80PK-1

WARNING

TO AVOID ELECTRICAL SHOCK, DO NOT USE THIS PROBE
WHEN VOLTAGES EXCEEDING 24V AC RMS OR 60V DC ARE
PRESENT. THE PROBE TIP IS ELECTRICALLY CONNECTED
TO THE OUTPUT TERMINALS.

INTRODUCTION

The 80PK-1 is a Type K Bead Thermocouple designed for
general purpose temperature measuring applications. It has an
extremely fast response time, due to the low thermal mass of the
exposed tip. The 40-inch (1-meter) Teflon cable is terminated with
a Type K miniature thermocouple connector with 0.312-inch
(0.792-mm) pin spacing. The 80PK-1 can be used with any
temperature measuring instrument that is designed to accept
Type K thermocouples and that has a miniature connector input.

The 80PK-1 must be used in Teflon-compatible environments and
is not suitable for liquid immersion. Above 260°C (500°F), Teflon
will emit toxic fumes.

SPECIFICATIONS

Type: K Special Grade (Chromel vs Alumel)
Measurment Range: -40°C to 260°C (-40°F to 500°F)

continuous

Accuracy (with respect to NBS tables for Special Grade): ±1.1°C
(2.0°F) over the range of 0°C to 260°C (32°F to 500°F) Typically
within 1.1°C (2.0°F) of NBS Tables over the range of -40°C to
0°C (-40°F to 32°F)

March, 1985 Rev.3, 4/02

©1989-2002 Fluke Corporation. All Rights Reserved. Printed in U.S.A.
All product names are trademarks of their respective companies

Output: 25°C (77°F) = 1.00mV (reference junction at 0°C)
Seebeck Coefficient: 25°C (77°F) = 40.50 µV / °C
Measurement Time (Time Constant): 2 seconds (for air at room

temperature and one atmosphere of pressure moving with a
velocity of 65 ft / sec)
Maximum Voltage: 24V ac rms or 60V dc maximum for proper
safe operation.

Maximum Temperature of Bead: 260°C (500°F
Cable:

Length: 40 inches (1 meter)
Insulation:

Material: Teflon
Maximum Temperature: 260°C (500°F)

Conductors:

Type K
Size: AWG #24 solid
Length: 48 inches nominal

Polarity and Color Coding:

Chromel: + yellow
Alumel: - red
Outer Jacket: black

Connector:

Type: yellow mini-thermocouple connector with 0.312-inch pin
spacing

Material: Hytrel
Maximum Temperature: 200°C (392°F)

Protection:

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

MEASUREMENT CONSIDERATIONS

Instrument Compatibility

The 80PK-1 is designed to be compatible with any temperature
measuring instrument that accepts Type K thermocouples, has a
miniature thermocouple connector, and has cold reference