Sper Scientific 800108 User Manual

IR/Thermistor Pen

800108

Instruction Manual

IR/Thermistor Pen 800108
Copyright ©2010 by Sper Scientific

ALL RIGHTS RESERVED

Printed in the USA

The contents of this manual may not be
reproduced or transmitted in any form or
by any means electronic, mechanical, or
other means that do not yet exist or may
be developed, including photocopying,
recording, or any information storage
and retrieval system without the express
permission from Sper Scientific.

7720 E. Redfield Rd. Suite #7,

Scottsdale, AZ 85260

Tel: [phone] Fax: [phone]

Web: www.sperscientific.com

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TABLE OF CONTENTS

INTRODUCTION. . . . . . . . .

FEATURES . . . . . . . . . . . . .

METER COMPONENTS . . .

MEASUREMENT

PROCEDURES. . . . . . . . . .

BATTERY REPLACEMENT .

SPECIFICATIONS . . . . . . . .

WARRANTY . . . . . . . . . . . . .

4

5

6

7

12

13

15

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INTRODUCTION

The Sper Scientific IR/
Thermistor Pen (Model 800108)
functions as a thermistor
thermometer and a non-contact
IR (Infrared) thermometer.

The IR thermometer takes non­contact readings of surfaces and
the thermistor probe is used to
penetrate and measure solids
and liquids.

IR thermometers are used to
safely measure the temperature
in inaccessible, hot or
hazardous objects in electrical,
hazmat, HVAC, and other fields.
IR thermometers are also used
in moving machinery in
factories, automobiles and
elsewhere. Other uses include
electrical troubleshooting HVAC
energy audits and avoiding
contamination in the food,
beverage and pharmaceutical
industries.

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FEATURES

Dual function as thermistor



and IR thermometer

 5.3” rotatable probe

 Maximum and minimum

Memory

 Hold function

 Auto-power-off

 Backlight

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METER COMPONENTS

Rotating Probe

The thermistor thermometer
includes a built-in 5.3” rotating
probe. To rotate the probe:

1. Hold the probe tip and swing
it away from the meter until
the probe locks at a 90°
angle from the meter.

2. From the 90° postion, pull
upward until the probe locks
at 180° angle from the meter
(the probe is now fully
extended).

3. While pressing the release
button on the swivel knob,
hold the probe tip and push
the probe back toward the
meter.

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MEASUREMENT

PROCEDURES

The Sper Scientific IR/Thermistor
Pen (Model 800108) functions as
two thermometers with
independent displays and battery
power. The following
measurement procedures are
divided into two sections:
Thermistor Thermometer and IR

Thermometer.

THERMISTOR THERMOMETER

Turning the Unit On/Off

1. Press ON/OFF for 1 second.

The meter will turn on and
begin taking readings.

2. Press ON/OFF for 3 seconds

to turn the meter off.

Backlight

Press for 1 second. The LCD
backlight will activate for 10
seconds.

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MEASUREMENT

PROCEDURES

Hold/Maximum/Minimum

1. Press HOLD/MAX/MIN

button for 1 second to enter
HOLD display function. The
current reading will freeze on
the display.

2. Press HOLD/MAX/MIN
button again to view the

maximum value of the
readings taken since the
thermometer was turned on.
If a new maximum is reached
while viewing, the new
maximum value will display
on the LCD.

3. Press HOLD/MAX/MIN
button again to view the

minimum value of the
readings taken since the
thermometer was turned on.
If a new minimum is reached
while viewing, the new
minimum value will display
on the LCD.

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MEASUREMENT

PROCEDURES

4. The meter cycles from Hold
→ Max → Min → Hold.

Press HOLD briefly to return

to Hold Mode.

Note…

The minimum, maximum and

hold values will not be saved

when the meter returns to

Normal Mode or when the meter

is turned off.

Clear Memory

1. Press CLEAR for 3 seconds

to delete all memory. “- - - -”
will appear on the LCD.

2. Wait 3 seconds and the
meter will automatically
return to Normal Mode.

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MEASUREMENT

PROCEDURES

Temperature Units

To select either Celsius or
Fahrenheit temperature scale gently
insert the end of a paperclip into the
pick hole on the back.

Auto Power Off

To save battery life, the meter will
automatically turn off after 10
minutes of inactivity when the auto
power off function is enabled.

1. The clock symbol appears
on the LCD to indicate that auto
power off is enabled.

2. Press HOLD and ON/OFF

buttons simultaneously to
enable/disable the auto power
off function.

IR THERMOMETER

1. Aim thermometer at the target.

2. Press the IR Button to view the
surface temperature. The
measurement is constantly

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MEASUREMENT

PROCEDURES

 updated as long as the IR

button remains depressed.

3. When the IR button is released,
the last measurement remains
on the display until the unit
turns off or the IR button is
pressed again.

Note…

The distance-to spot-ratio (D:S), is
the ratio of the distance to the
object and the diameter of the
temperature measurement area.
The area being measured becomes
larger as the distance from the
target increases. In this instance,
the D:S ratio is 1:1, so the
measurement of an object 1 inch
away will average the temperature
over a 1-inch diameter area. (For
best results, position the
thermometer as close to the target
as possible.)

Temperature Units

Follow the instructions for the
thermistor thermometer (page 10)
using the hole located on the IR
side of the pen.

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BATTERY

REPLACEMENT

This model uses four LR44 1.5
V batteries: two batteries
operate the thermistor
thermometer and two batteries
operate the IR thermometer.

1. Press ON/OFF button to turn

the meter off.

2. Remove the old batteries
and replace with new LR44
batteries, ensuring correct
polarity.

3. Reassemble the unit.

Note…

The temperature scale will not
change when the meter is
turned off. Both thermometers
will revert to the default scale
(Fahrenheit) when the batteries
are replaced.

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SPECIFICATIONS

Thermistor IR
Range

Resolution

Accuracy

Measurement
Temperature

Response
Time

Field of View

-50 ~ 150°C
(-58 ~
302°F)

0.1°C (0.1°F) 0.1°C (0.1°

± 1.0°C (±2°
F): -50 ~ ­10°C (-58
~14°F) & 80
~ 125°C
(176 ~ 257°
F) ± 0.5°C
(±1°F): -10 ~
80°C (14 ~
176°F) ±

1.5%: 125 ~
150°C (257
~ 302°F)

-33 ~ 250°C

20 seconds 1 second

1:1 optics

-33 ~ 220°C
(-27.4 ~
428°F)

F); Above
200°C, 1°C
(1°F)

± 2% of
reading or
2°C,
whichever
is greater

(-27.4 ~
482°F)

ratio

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SPECIFICATIONS

Thermistor IR
Emissivity

Operating
Temperature

Storage
Temperature

Battery

Weight

Dimensions

Probe
Dimensions

0.95 fixed

0 ~ 50°C
(32 ~ 122°F)

-20 ~ 60°C
(-4 ~ 140°F)

2 x LR44
(1.5 V)
batteries

66g

14.2 x 168
mm

69 x 3.6, mm
135 x 3.6 mm

2 x LR44
(1.5 V)
batteries

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WARRANTY

Sper Scientific warrants this product
against defects in materials and

workmanship for a period of five (5)
years from the date of purchase,

and agrees to repair or replace any
defective unit without charge. If your
model has since been discontinued,
an equivalent Sper Scientific product
will be substituted if available. This
warranty does not cover probes,
batteries, battery leakage, or
damage resulting from accident,
tampering, misuse, or abuse of the
product. Opening the meter to
expose its electronics will void the
warranty. To obtain warranty
service, ship the unit postage
prepaid to:

SPER SCIENTIFIC LTD

7720 E Redfield Rd, Suite 7

Scottsdale, AZ 85260

The defective unit must be
accompanied by a description of the
problem and your return address.
Register your product online at
www.sperscientific.com, or return
your warranty card within 10 days of
purchase.

Rev. 11/17/11

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