Fluke 80T-E Service Manual

80T-IR/E

Extended Range Infrared

Temperature Probe

Instruction Sheet

Introduction

The Fluke 80T-IR/E Extended Range Infrared
Temperature Probe (the probe) is a noncontact
temperature measurement acc es sory for use with a test
instrument capable of measuring DC volts in the
millivolt range such as a digital multimeter (DMM). The
probe has a temperature range of 32°F to 1000°F, with
a basic accuracy of 3% of reading, and an output of 1
mV dc per °F.

Temperature is measured by pointi ng the probe at the
surface to be measured, and reading the tem perature
on the test instrument di s pl ay.

®

Box Contents

Temperature Probe, Battery (installed), Instruction
Sheet, and Warranty Card.

Safety Information

The 80T-IR/E complies with IEC Publication 1010-1­1990 including Amendment 1, CSA C22.2 No. 231,
ANSI/ISA-S82.01 and .03 Safety Standards.

W WARNING

IF TARGET EMMISSIVITY IS LESS THAN 0.95, THE
PROBE CAN INDICATE A TEMPERATURE LOWER
THAN THE ACTUAL TARGET TEMPERATURE.
AVOID TOUCHING THE TARGET; THERMAL BURNS
COULD RESULT.

· Do not place the probe on or around hot objects (70° C

/ 158°F). It will damage the probe case.

· If the probe is exposed to significant changes in

ambient temperature (hot to cold or cold to hot),
allow 20 minutes for temperature stabilization,
before taking measurements.

· Do not operate the probe near large electrical or

magnetic fields such as arc welders and
induction heaters. These fields can cause
measurement errors.

· Condensation may form on the lens when going

from a cold to hot environment - wait 10 minutes
for condensation to dissipate before taking
measurements.

· Connectors must only be plugged into voltage

measurement input jacks of the test instruments.

· Do not touch or hold by the front cone.

Temperature readings can be affected by heat
from the hand.

· Equipment use not specified by manufacturer

may impair safety.

CAUTION

Compatibilit y

The probe is compatible with all DC milliv olt measuring
instruments that have a minimum of 1 MW input
impedance and accept safety shrouded, standard
diameter 0.16 in. (4 mm) banana plugs.

Operati on

To take a measurement, perform t he f ol l owi ng s teps:

1. Plug the red connector into the VW dc input jack
and the black connector into the common or
ground input jack on the test i ns trument.

2. Select mV dc on the t es t instrument.

3. Slide the probe switch forward to the "ON"
position.

4. Point the tip of the probe as close as pos sible to
the object being measured without touching the
object.

5. Read the test instrument di s pl ay.

Additional considerations are:

· After 10 minutes of use the probe will
automatically shi ft to Sleep mode (the display will
show 0°F). It can be restarted by sliding the
switch to "OFF" and then to " O N" (s ee Tabl e 1).

· Sleep mode extends battery life. However, for
maximum battery life, switch the probe to the
"OFF" position.

· If the test instrument displays an overload
condition, switch t he DMM range from mV dc t o V
dc. Increasing the range to V dc moves the
decimal position three places to the left (1000°F
displays as 1.000V dc ).