Fluke 80TK specifications Introduction, Specifications

Introduction

The Fluke 80TK is a thermocouple converter for use with any K-type thermocouple and a digital multimeter. The 80TK accepts the output of any K-type thermocouple and converts it to 1 millivolt per degree (Celsius or Fahrenheit).

A three-position switch acts as a power switch as well as selecting Fahrenheit or Celsius scaling for the output. In addition, the OFF position of the power switch allows you to read the battery condition via the external multimeter. The thermocouple input accepts wire leads or standard mini- thermocouple connectors.

Temperature is measured by exposing or attaching the thermocouple to the surface to be measured. The multimeter displays the temperature directly in degrees Fahrenheit or Celsius.

Specifications

Electrical

Measurement Range: -50 to 1000 degrees Celsius

	-58 to 1832 degrees Fahrenheit
Resolution:
2000 count display:	0.1° C/F in 200 mV range
	1.0° C/F in 2V range
3200 count display:	0.1	C/F in 300 mV range
	1.0	C/F in 3V range
4000 count display:	0.1° C/F in 400mV range
	1.0° C/F in 4V range

Note: Ignore decimal point on 2V, 3V, or 4V range.

Maximum Voltage at Thermocouple Input: 60V DC, 24V AC

RF Field: Exposure to an RF field interferes significantly with this module’s capacity to accurately measure temperature with thermocouples. The interference is temporary and the module suffers no harm when exposed to an RF field of 3 V/m. Accurate temperature measurement capability is completely restored when the module is removed from the RF field.

Common sources of RF fields are handheld 2-way radios and cellular telephones. If such a source is suspected of interfering with this module, either turn off the transmitter or increase the separation between the transmitter and the module.

Environmental

Ambient Operating Range: 0 to 50°C

Storage Temperature: -40 to 60°C -40 to 140°F

Humidity:0% to 90% (0 to 35°C) 0% to 70% (35 to 50°C)

PN 735985 February 1985 Rev.6, 11/02

®

80TK Thermocouple Module

Instruction Sheet

Basic Accuracy: (@ 23 ±5°C Calibration)*

(Applies for one year after purchase or recalibration)

RANGE	ACCURACY ± (% of reading +
	degrees), 1 year
-20 to 350°C	0.5%	± 2°C
-4 to 662°F	0.5%	± 3.6°F
351 to 500°C†	1.75% ± 2°C
664 to 932°F†*	1.75% ± 3.6°F
501 to 1000°C	2.0%	± 2°C
933 to 1832°F	2.0%	± 3.6°F
-50 to -21°C	2.5%	± 2°C typical
-58 to -5.8°F	2.5%	± 3.6°F typical

Temperature Coefficient:

*0°C to 18°C and 28°C to 50°C ambient, multiply the basic accuracy specification by 0.1 for each degree above 28 or below 18.

†For accuracy enhancement between 351°C to 500°C,

subtract 3 degrees from the reading. The accuracy is now 0.75% ± 2°C.

†* For accuracy enhancement between 663°F and 932°F, subtract 5.4 degrees from the reading. The accuracy is now 0.75% ± 3.6°F.

Note

The basic accuracy specification does not include the error of the probe or the DMM. Please refer to the probe accuracy specification for additional details.

General

Weight: 4.5 ounces, 126 grams

Overall length: 4 5/8 inches, 11.75 mm

Battery: Standard 9V Battery (NEDA #1604, 6F22, 006P)

Battery Life: 1600+ hours, 6.5V minimum

Output: 3/4 inch spaced banana plugs, 10 megohm minimum load resistance

Accessories

80PK-1 (included): Bead Probe 4 foot K-type thermocouple bead probe, with Teflon tape insulation. Maximum insulation temperature: 260°C. Accuracy: ± 2.2°C or ± 0.75% (whichever is greater) from 0 to 800°C.

80PK-2A: Immersion Probe (8" or 20.32 cm from tip to probe handle)

80PK-3A: Surface Probe (for flat or curved surfaces)

80PK-4A: Air Probe (protected by stainless steel baffle)

80PK-5A: Piercing Probe (suitable for food use, liquids and gels)

80PK-6A: Exposed Junction Probe (exposed bead attached to 6" sheath)

©1985-2002 Fluke Corporation. All rights reserved. Printed in USA All product names are trademarks of their respective companies.