MTP MTP-1325 Operating Manual

MTP

Operating Manual

Model MTP-1325

Non-Contact Infrared Thermometers

5

8

7p

9

12

11p

1

4

3p

6p

5p

9p

10p

MTP Instruments

www. .com

[e-mail]1.800.561.8187

2

TABLE OF CONTENTS

INTRODUCTION……………………………………….. 3

FEATURES…………………………………………….. 3

WIDERANGEAPPLICATION …………………………... 3

SAFETY………………………………………………... 4

DISTANCE&SPOTSIZE………………………………… 4

SPECIFICATIONS……………………………………… 5

FRONTPANELDESCRIPTION………………………….. 6

INDICATOR…………………………………………….. 6

MEASURMENTOPERATION…………………………… 7

BATTERYREPLACEMENT…………………………….. 8

NOTES………………………………………………… 8

MAINTENANCE ……………………………………….11

www. .com

[e-mail]1.800.561.8187

3

INTRODUCTION

Thank you for purchase of the IR Thermometer. This is
capable of non-contact (infrared) temperature
measurements at the touch of a button. The built-in laser
pointer increases target accuracy while the backlight LCD
and handy push-buttons combine for convenient, ergonomic
operation.
The Non-contact Infrared Thermometers can be used to

measure the temperature of objects’ surface that is improper

to be measured by traditional (contact) thermometer (such
as moving object, the surface with electricity current or the
objects which are uneasy to be touched.)
Proper use and care of this meter will provide years of
reliable service.

FEATURES:

 Rapid detection function
 Precise non-contact measurements
 Unique flat surface, modern housing design
 Automatic Data Hold
 °C/°F switch
 MAX temperature displays
 Backlight LCD display
 Automatic selection range and Display Resolution 0.1º

C(0.1ºF)

WIDE RANGE APPLICATION:

Food preparation, Safety and Fire inspectors, Plastic
molding, Asphalt, Marine and Screen printing, measure ink
and Dryer temperature, HVAC/R, Diesel and Fleet
maintenance.

www. .com

[e-mail]1.800.561.8187

4

SAFETY

 Use extreme caution when the laser beam is turned on.
 Do not let the beam enter your eye, another person’s

eye or the eye of an animal.

 Be careful no to let the beam on a reflective surface

strike your eye.

 Do not allow the laser light beam impinge on any gas

which can explode.

Distance & Spot Size

As the distance (D) from the object increases, the spot size
(S) of the area measured by the unit becomes larger. The
relationship between distance and spot size for each unit is

listed below. The focal point for each unit is 914mm (36”).

The spot sizes indicate 90% encircled energy.

300

100

75

25

900

1200

D:S= 12:1

www. .com

[e-mail]1.800.561.8187

5

1. SPECIFICATIONS
Temperature range D: S

-50 to 450 °C (-58°F ~ 842°F) 12:1
Display resolution 0.1 °C (0.1°F)
Accuracy for targets:
Assumes ambient operating temperature of 23 to 25 °C (73
to 77°F)

-50 ~ 20°C (-58°F ~ 68°F) ±2.5°C (4.5°F)
20°C ~300°C (68°F ~572°F) ±1.0% ±1.0°C (1.8°F)
300°C ~450°C (572°F ~ 842°F) ±1.5%

Repeatability

-50~20°C (-58~68°F) : ±1.3°C (2.3°F)
20~450°C (68~842°F) : ±0.5% or ±0.5°C (0.9°F)
Response time 150ms
Spectral response 8~14um
Emissivity Fixed at 0.95
Over range indication LCD will show “----”
Polarity Automatic (no indication for positive polarity);

Minus (-) sign for negative polarity
Diode laser output <1mW,Wavelength 630~670nm,
Class 2 laser product
Operating temp. 0 to 50°C (32 to 122°F)
Storage temp. –10 to 60°C (14 to 140°F)
Relative humidity 10%~90%RH operating,
<80%RH storage
Power supply 9V battery, NEDA 1604A or IEC 6LR61,
or equivalent
Safety “ CE ” Comply with EMC

www. .com

[e-mail]1.800.561.8187

6

Note:
 Field of View: Make sure that the target is larger than

the unit’s spot size. The smaller the target, the closer

you should be to it. When accuracy is critical, make sure
the target is at least twice as large as the spot size.

2. FRONT PANEL DESCRIPTION

① IR sensor

② LCD Display

Laser pointer beam

③ Measurement Trigger

④ Battery Cover

⑤ Handle Grip

3. INDICATOR

① Data hold

② Laser ” on” symbols

③ °C /°F symbol

④ Low power symbols

⑤ Emissivity symbol and value

⑥ Temperature values for the MAX

⑦ Symbols for MAX

⑧ Current temperature value

www. .com

[e-mail]1.800.561.8187

7

Functional Design
the switches of C/F sat in a cell switching
Switching C/F
Select the temperature units (°C or °F) using
the oC/oF switch ( ① )

Max indicate the max record that displays between the
pressing and releasing the "ON/OFF" button each time

MEASUREMENT OPERATION

① Hold the meter by its Handle Grip and point it toward the

surface to be measured.

② Pull and hold the Trigger to turn the meter on and begin

testing. The display will light if the battery is good.
Replace the battery if the display does not light.

③ Release the Trigger and the HOLD display icon will

appear on the LCD indicating that the reading is being
held.

④ The meter will automatically power down after

approximately 7 seconds after the trigger is
released.(Unless the unit is locked on)

Note: Measurement considerations

Holding the meter by its handle, point the IR Sensor
toward the object whose temperature is to be measured.
The meter automatically compensates for temperature
deviations from ambient temperature. Keep in mind that
it will take up to 30 minutes to adjust to wide ambient
temperatures are to be measured followed by high

www. .com

[e-mail]1.800.561.8187

8

temperature measurements, some time (several
minutes) is required after the low (and before the high)
temperature measurements are made.
This is a result of the cooling process, which must take
place for the IR sensor.

4. BATTERY REPLACEMENT

① As battery power is

not sufficient, LCD
will display “ ”
replacement with one
new battery type 9V is required.

② Open battery cover, then take

out the battery from instrument
and replace with a new 9-Volt
battery and place the battery cover back.

6. NOTES:

 How it Works

Infrared thermometers measure the surface

temperature of an object. The unit’s optics sense

emitted, reflected, and transmitted energy, which is

collected and focused onto a detector. The unit’s

electronics translate the information into a temperature
reading, which is display on the unit. In units with a
laser, the laser is used for aiming purposes only.

Open the battery over

9v battery

Low battery indicator

www. .com

[e-mail]1.800.561.8187

9

 Field of View

Make sure that the target is larger than the unit’s spot

size. The smaller the target, the closer you should be to
it. When accuracy is critical, make sure the target is at
least twice as large as the spot size.

 Distance & Spot Size

As the distance (D) from the object increases, the spot
size (S) of the area measured by the unit becomes
larger. See: Fig: 1.

 Locating a hot Spot

To find a hot spot aim the thermometer outside the area
of interest, then scan across with an up and down
motion until you locate hot spot.

 Reminders

① Not recommended for use in measuring shiny or

polished metal surfaces ( stainless steel, aluminum,
etc.).See Emissivity

② The unit cannot measure through transparent surfaces

such as glass. It will measure the surface temperature
of the glass instead.

③ Steam, dust, smoke, etc., Can prevent accurate

measurement by obstructing the unit’s optics.

 Emissivity

Emissivity is a term used to describe the
energy-emitting characteristics of materials.
Most (90% of typical applications) organic materials
and painted or oxidized surfaces have an emissivity of

0.95 (pre-set in the unit). Inaccurate readings will result
from measuring shiny or polished metal surfaces. To

www. .com

[e-mail]1.800.561.8187

10

compensate, cove the surface to be measured with
masking tape or flat black paint. Allow time for the tape
to reach the same temperature as the material
underneath it. Measure the temperature of the tape or
painted surface.

Emissivity Values

Substance

Thermal

emissivity

Substance

Thermal

emissivity

Asphalt

0.90 to 0.98

Cloth (black)

0.98

Concrete

0.94

Human skin

0.98

Cement

0.96

Lather

0.75 to 0.80

Sand

0.90

Charcoal (powder)

0.96

Earth

0.92 to 0.96

Lacquer

0.80 to 0.95

Water

0.92 to 0.96

Lacquer (matt)

0.97

Ice

0.96 to 0.98

Rubber (black)

0.94

Snow

0.83

Plastic

0.85 to 0.95

Glass

0.90 to 0.95

Timber

0.90

Ceramic

0.90 to 0.94

Paper

0.70 to 0.94

Marble

0.94

Chromium oxides

0.81

Plaster

0.80 to 0.90

Copper oxides

0.78

Mortar

0.89 to 0.91

Iron oxides

0.78 to 0.82

Brick

0.93 to 0.96

Textiles

0.90

www. .com

[e-mail]1.800.561.8187

11

7. MAINTENANCE

 Repairs or service are not covered in this manual and

should only be carried out by qualified trained
technician.

 Periodically, wipe the body with a dry cloth. Do not use

abrasives or solvents on this instrument.

 For service, use only manufacturer’s specified parts.

www. .com

[e-mail]1.800.561.8187

12

Les Instruments

MTP

Instruments

Siège Social

4409, rue Charleroi

Montréal-Nord, Québec

H1H 1T6

Téléphone : [phone] Télécopieur : (514)

326-7835

Ligne directe : 1-888-326-7167

Site Web : www.mtpinc.com Courrier

électronique : [e-mail]

www. .com

[e-mail]1.800.561.8187