Amprobe TM45A Digital Thermometer User manual

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User Manual

•Bedienungshandbuch

•Manual de uso

•Mode d’emploi

TM45A

Digital Thermometer

TM45A

Digital Thermometer

•Bedienungshandbuch

•Manual de uso

•Mode d’emploi

PN 1566317

1

Digital Thermometer

Contents

Symbols ..............................................................................1

Introduction .......................................................................1

Warnings and Precautions ................................................2

Preparation for Use - Unpacking ......................................2

Measuring Procedure ........................................................2

Speciﬁcations .....................................................................3

Maintenance ......................................................................4

Battery Replacement .........................................................5

Repair .................................................................................5

Symbols



Battery



Refer

to the

manual



Complies

with EU

directives



Earth

Ground

Introduction

The TM45A is a portable, 3-1/2 digit, compact-sized digital

thermometer designed for use with an external K-type

thermocouple as temperature sensor. Temperature indication

follows Reference Temperature/Voltage tables N.I.S.T.

Monograph 175 Revised to ITS-90 for K-type thermocouples.

One K-type thermocouple is supplied with the thermometer.

2

Warnings and Precautions

• When measuring surface temperatures, the potential

between the measured surface and earth ground must not

exceed 24V AC or DC. Voltages above 20V are dangerous.

• Inspect the instrument and probe before every use. Do not

use damaged parts.

• Never ground yourself when taking measurements in

electrical circuits. Do not touch exposed circuit elements or

probe tip.

• To avoid damage or burns, do not make temperature

measurements in microwave ovens.

• Do not operate instrument in an explosive atmosphere.

Caution: Repeated sharp ﬂexing can break the thermocouple

leads. To prolong lead life, avoid sharp bends in the leads,

especially near the connector.

Preparation for Use - Unpacking

Your shipping carton should include the digital thermometer

with four 1.5V AAA size batteries installed, one 1.2m type K

thermocouple probe, a soft carrying case and this manual. If

any of the items are damaged or missing, return to the place of

purchase for an exchange.

Measuring Procedure

1. Connect the K-type thermocouple probe to the instrument.

2. Turn instrument on by sliding the function switch to the

desired resolution (1° or 0.1°).

3. Push the selector key to select °C or °F (corresponding

symbol appears on display).

4. Apply the probe to the medium that the temperature is to

be measured.

5. Read the measured temperature on the digital display.

DATA HOLD: When measuring in tight locations or dark areas

you can push the DATA HOLD button to “freeze” the reading

on the display.  is displayed. Push the DATA HOLD button

again to resume normal display of current value.

MAX HOLD: Push this button to monitor a temperature over a

longer time period. MAX is displayed. The maximum value is kept

on the display and is updated each time a higher value is measured.

Pressing DATA HOLD while MAX recording is activated interrupts

recording; pressing DATA HOLD again resumes recording. Press

MAX HOLD again to return to normal measuring mode.

3

Speciﬁcations

General Speciﬁcations

Display: 3-1/2 dgt LCD, 1999 counts with function and unit

indicators.

Zero Adjustment: automatic

Low Battery Indication:  when battery voltage drops below

operating level.

Polarity indication: automatic, “–” indicated; “+” implied

Display Update Rate, Digits: 2.5/sec, nom.

Operating Temp.: 0 to 50°C, <80% Relative Humidity

Storage Temp: -20°C to 60°C, <70% RH, battery removed

Power Supply: four 1.5V AAA size UM-4 R03 batteries

Battery Life (typical): 200 hrs zinc-carbon.

Dimensions (HxWxD): 170 x 44 x 40 mm, (6.7” x 1.73” x 1.57”)

Weight (including batteries): 250 grams (9 oz)

Housing material: ABS

Input connector: accepts standard miniature thermocouple

connectors (ﬂat blades, spaced 7.9mm, center to center)

Accessories: one type K thermocouple bead probe, soft carrying

case, operator’s manual

Speciﬁcations of supplied probe:

1.2m (4 foot) type K thermocouple bead probe (teﬂon tape

insulated).

Maximum insulation temperature 260°C (500°F). Probe

accuracy ±2.2°C or ±0.75% of reading (whichever is greater)

from 0°C to 800°C.

Agency Approvals:

 EMC

This product complies with requirements of the European

Community Directive: 89/336/EEC (Electromagnetic

Compatibility).

However, electrical noise or intense electromagnetic ﬁelds in

the vicinity of the equipment may disturb the measurement

circuit. Measuring instruments will also respond to unwanted

signals that may be present within the measurement circuit.

Users should exercise care and take appropriate precautions

to avoid misleading results when making measurements in

the presence of electronic interference.

4

Electrical Speciﬁcations

Measurement range:

°C mode: -50.0°C to 199.9°C; 0.1°

resolution -50°C to 1300°C; 1° resolution

°F mode: -58.0°F to 199.9°F; 0.1°

resolution -50°F to 1999°F; 1° resolution

Resolution, selectable: 0.1° or 1°

Accuracy (speciﬁed for operating temperatures over the

range 18°C to 28°C / 64°F to 83°F, for 1 year, not including

thermocouple error)

°C mode:

-50°C to 199.9°C: ±(0.3%rdg +1°C)

-50°C to 1000°C: ±(0.3%rdg +1°C)

1000°C to 1300°C: ±(0.5%rdg +1°C)

°F mode:

-58°F to 199.9°F: ±(0.3%rdg +2°F)

58°F to 1832°F: ±(0.3%rdg +2°F)

1833°F to 1999°F: ±(0.5%rdg +2°F)

Temperature coefﬁcient: 0.1 times the applicable accuracy

speciﬁcation per °C from 0°C to 18°C and 28°C to 50°C

Overload protection: 24V AC or DC

Maintenance

In case you do not obtain the expected measurement result:

1. Check the batteries.

2. Review the operating instructions for possible mistakes in

operating procedure.

3. Inspect the thermocouple probe for a broken or intermittent

connection.

Except for the replacement of the batteries, repair of the

thermometer should be performed only by the Factory or by a

Factory Authorized Service Center.

The front panel and case can be cleaned with a mild solution

of detergent and water. Apply sparingly with a soft cloth and

allow to dry completely before using.

5

Battery Replacement

 Warning

For battery replacement, the instrument needs to be turned off,

with probe removed.

It is best to replace the batteries as soon as the

 symbol

appears in the display.

1. Turn instrument face down and remove the screw. Slide

battery hatch down and lift off.

2. Remove the four 1.5V AAA size batteries and replace with

same.

3. Replace the battery hatch and and secure with screw.

 Warning

Failure to turn off the instrument before installing the batteries

could result in damage to the instrument and to the batteries if

batteries are connected incorrectly to the thermometer.

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material

and workmanship for 1 year from the date of purchase. This

warranty does not cover fuses, disposable batteries or damage

from accident, neglect, misuse, alteration, contamination, or

abnormal conditions of operation or handling. Resellers are

not authorized to extend any other warranty on Amprobe’s

behalf. To obtain service during the warranty period, return

the product with proof of purchase to an authorized Amprobe

Test Tools Service Center or to an Amprobe dealer or distributor.

See Repair Section for details. THIS WARRANTY IS YOUR ONLY

REMEDY. ALL OTHER WARRANTIES - WHETHER EXPRESS,

IMPLIED OR STAUTORY - INCLUDING IMPLIED WARRANTIES OF

FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY,

ARE HEREBY DISCLAIMED. MANUFACTURER SHALL NOT

BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY

CAUSE OR THEORY. Since some states or countries do not

allow the exclusion or limitation of an implied warranty or of

incidental or consequential damages, this limitation of liability

may not apply to you.

Repair

All test tools returned for warranty or non-warranty repair or

for calibration should be accompanied by the following: your

name, company’s name, address, telephone number, and proof

of purchase. Additionally, please include a brief description of

the problem or the service requested and include the test leads

with the meter. Non-warranty repair or replacement charges

should be remitted in the form of a check, a money order, credit

card with expiration date, or a purchase order made payable to

Amprobe® Test Tools.

In-Warranty Repairs and Replacement – All Countries

Please read the warranty statement and check your battery

before requesting repair. During the warranty period any

defective test tool can be returned to your Amprobe® Test Tools

distributor for an exchange for the same or like product. Please

check the “Where to Buy” section on www.amprobe.com for a

list of distributors near you. Additionally, in the United States

and Canada In-Warranty repair and replacement units can also

be sent to a Amprobe® Test Tools Service Center (see next page

for address).

Non-Warranty Repairs and Replacement – US and Canada

Non-warranty repairs in the United States and Canada should be

sent to a Amprobe® Test Tools Service Center. Call Amprobe®

Test Tools or inquire at your point of purchase for current repair

and replacement rates.

In USA In Canada

Amprobe Test Tools Amprobe Test Tools

Everett, WA 98203 Mississauga, ON L4Z 1X9

Tel: 877-AMPROBE (267-7623) Tel: 905-890-7600

Fax: 425-446-6390 Fax: 905-890-6866

Non-Warranty Repairs and Replacement – Europe

European non-warranty units can be replaced by your

Amprobe® Test Tools distributor for a nominal charge. Please

check the “Where to Buy” section on www.amprobe.com for a

list of distributors near you.

European Correspondence Address*

Amprobe® Test Tools Europe

In den Engematten 14

79286 Glottertal, Germany

Tel.: +49 (0) 7684 8009 - 0

*(Correspondence only – no repair or replacement available

from this address. European customers please contact your

distributor.)

TM45A

Digital Thermometer

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Digital Thermometer

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Digital Thermometer

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