Tegam 911A, 912A, 931A, 932A Operation Manual

911A, 912A

T

Models:

911A, 912A

Thermocouple Thermometers

Manual Part Number: 911-900, Rev. B

Published July 2017, Geneva, OH

HERMOCOUPLE THERMOMETERS

Operation
Manual

rev B

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Notices

death.

CAUTION denotes a h az ard
the unit or other equipment.

NOTICES

Copyright Notice

© TEGAM, Inc., 2017
No part of this manual may be reproduced in any

form or by any means (including electronic
storage and retrieval or translation into a foreign
language) without prior agreement and written
consent from TEGAM, Inc. as governed by United
States and international copyright laws.

This Manual

Part Number:

911-900
Revision B, July 2017
Supersedes: Rev. A, November 2016

Published by:

TEGAM, Inc.
10 TEGAM Way
Geneva, OH 44041

Disclaimer and Manual Revis ions :

THE MATERIAL CONTAINED IN THIS USER
MANUAL, AND ANY COMPUTER
SOFTWARE ASSOCIATED WITH THIS
USER MANUAL OR THE PRODUCTS
COVERED BY IT, ARE PROVIDED AS IS,
AND ARE SUBJECT TO CHANGE, WITHOUT
NOTICE, IN FUTURE REVI S IONS .

This User Manual was current at the time of
publication. However, TEGAM is dedicated to a
process of continual product improvement, and
the products covered by this User Manual, and
any associated computer software, are su bject to
periodic functional and design updates. Please
visit tegam.com for the most current product
documentation.

U.S. Government Rights

This computer software and/or technical data is
TEGAM proprietary information developed
exclusively at private expense. Computer
software and technical data rights grant ed to th e
federal government include only those rights
customarily provided to the public, pursuant to
FAR 12.211 (Technical data) and FAR 12.212
(Computer software) for the federal government,
and DFARS 252.227-7015 (Technical data –
Commercial items) and DFARS 227-7202-3
(Rights in commercial computer software or
commercial computer software documentation)
for the Department of Defense. Except as

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reproduction for non-governmental use of the
information or illustrations contained in this
computer software and technical data is not
permitted.

Compliance

Safety Notice Symbols and Terms

Safety Notices denote hazards. They indicate an
operating procedure, instruction, or practice
that, if not correctly performed or followed, could
result in damage to equipment, or injury or death
to personnel . Do not proceed beyond a Safe ty
Notice until all conditions and instructions are
fully understood and complied with.

Safety Notices Symbols:

ii

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WARNING

CAUTION

REMINDER denotes important
information about instrument
functions, menus, and
measurements.

WARNING denotes an
imminent hazard that could
result in injury to personnel or

that could result in damage to

Table of Contents

TABLE OF CONTENTS

1. Instrument Description................................................................................................................................ 1-1

Specifications ..................................................................................................................................... 1-1

Optional Accessories and Or d e ring Information ........................................................................ 1-2

TEGAM Family of Thermometers ..................................................................................................... 1-3

2. Preparation for Use ..................................................................................................................................... 2-1

General Information ......................................................................................................................... 2-1

Feature Overview .............................................................................................................................. 2-1

Safety Notices and Information ...................................................................................................... 2-2

Unpacking and Inspection .............................................................................................................. 2-4

Battery Installation and Replacement .......................................................................................... 2-4

Making Your First Temperature Measurement ............................................................................. 2-5

3. Operating Instructions ................................................................................................................................ 3-1

Keypad Functions .............................................................................................................................. 3-1

LCD Display ......................................................................................................................................... 3-1

Setup Menu ........................................................................................................................................ 3-3

View Mode s and Sta t istics ............................................................................................................... 3-4

Auto-Power Off .................................................................................................................................. 3-5

Backlight and Backlight Timeout .................................................................................................... 3-6

Hold Function ..................................................................................................................................... 3-6

Trend Indicators ................................................................................................................................. 3-6

Battery Indicator ................................................................................................................................ 3-6

Probe Offset ....................................................................................................................................... 3-7

Open Lead Detection Enable/Disable (SN xxxxxx and above only) ....................................... 3-8

Clear Function ................................................................................................................................... 3-9

Invalid Measuremen t Indic ations ................................................................................................... 3-9

4. Service Information ..................................................................................................................................... 4-1

Inspection and Cleaning ................................................................................................................. 4-1

Calibration .......................................................................................................................................... 4-1

4.2.1 Verification Procedure ................................................................................................................ 4-1

4.2.2 Alignment Procedure .................................................................................................................. 4-2

Troubleshooting ................................................................................................................................. 4-6

Diagnostic Routines and Error Codes ............................................................................................ 4-7

Memory Sterilization .......................................................................................................................... 4-7

Preparation for Calibration or Repair Service .............................................................................. 4-8

Expedite Repair & Calibration Form .............................................................................................. 4-9

Warranty....................................................................................................................................................... 4-10

Warranty Limitations ................................................................................................................................... 4-10

Statement of Calibration .......................................................................................................................... 4-10

A. Required Equipment.................................................................................................................................... A-i

B. Expanded Instrument Uncertainties ..........................................................................................................B-i

C. Instrument Verification Data Sheet ........................................................................................................... C-i

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Instrument Description

G

:

Basic Accuracy

±(0.04% |rdg| + 0. 3 °C )1

Conformity

ITS-90

Temperature

K

-200 to 1372

-328 to 2502

73 to 1645

J

-210 to 1200

-346 to 2192

63 to 1473

T

-250 to 400

-418 to 752

23 to 673

E

-250 to 1000

-418 to 1832

23 to 1273

Connector Type

One (1) Mini-TC (911A)

Two (2) Mini-TC (912A)

Probe Zero Func ti o n

Resolution 0.1 °C/°F/K

Four (4) digit LCD, with Temperature, Units, Function, Trend,
Polarity, Battery, and Decimal Indicators

Display Backlight

Four (4) LED Backlight with 30-second timeout

Display Resolution

(-99.9 to 999.9 °)

1 ° (< -99.9 °, > 999.9 °)

Reading Rate

Battery Type

Battery Life

Battery Indicato r

Four (4) Stage Battery Charge Indicator

Reading Range

Keypad

Eight (8) momentary switches with audible and tactile feedback

Clock

Elapsed Statistics Run Time

Instrument retains last selected:

Input Current

Maximum Common
Compliance

CE (2014/30/EU) / RoHS2 (2011/65/EU)

ESD

IEC 61000-4 2:2009, Class B

1. INSTRUMENT DESCRIPTION

Specifications

ENERAL SPECIFICATIONS

Ranges

Display

Statistics

Power Cycle
Configuration
Retention

°C °F K

3 / Second for Readings and Trend Indicators
3 AA (IEC LR6, ANSI 15) Alkaline
2000 Hours Typical

Minimum Reading
Maximum Reading
Average Reading

• Sensor Type

• Temperature Unit

• Offset Values

±50 nA

Standard Deviation
T1–T2 (912A only)

Mode Voltage

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42 V peak to earth

1-1

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1 V p-p between T1 and T2

Instrument Description

EN 55022:2010+A1:2015,

E

:

Standards

MIL-PRF-28800F, Class 2

UL 60079-0 § 26.4.2

Operating Temp

-20 to 55 °C

-4 to 131 °F

For specification varia nce s du e to a mbi en t op e r atin g

<10 °C (50 °F): Non-condensing

Altitude

0 to 4600 m

0 to 15,092 ft

Vibration

Random 10 – 500 Hz, 0.03 g2/Hz

Shock

30g Half Sine

Drop

4 Drops from 1 m to Conc re t e

Storage Temp

-40 to 71 °C

-40 to 159 °F

P

:

Dimensions

193 x 84 x 28 mm

7.6 x 3.3 x 1.1 in

Weight (incl.

1

For complete instrument accuracies, see the Expanded Instrument Uncertainty charts in Appendix B of

this manual.

P

M

D

911-910

Tilt Stand/Magnet/Hanger

911-911

Foam-Filled Hard Carry Case

See TEGAM Temperature Probe Selection Guide at

Printed Manual

911-900

Operation Manual

Manual

Chinese, Dutch, French, German, Japanese, Korean, and

Service Options

Calibration with Statement of Traceability

EMC

NVIRONMENT

Temperature
Coefficient

Humidity

HYSICAL CHARACTERISTICS

Batteries)

Class A; EN 61000-4
3:2006+A2:2010, 10 V/m (80
MHz to 1 GHz)

temperature, see the Expanded Instrument Unc ertainty charts
in Appendix
temperatures not shown in Appendix B, accuracies shall be
interpolated linearly.

10 to 30 °C (50 to 86 °F): 5 to 95% RH
30 to 40 °C (86 to 104 °F): 5 to 85% RH
40 to 55 °C (104 to 131 °F): 5 to 60% RH

911A: 300.9 g (10.6 oz.) 912A: 303.2 g (10.7 oz.)

B of this manual. For ambient operating

MIL-PRF-28800F, Class 2

Optional Accessories and Ordering Information

RODUCT

Accessories

Translations

ODEL

ESCRIPTION

tegam.com for available temperature probes

Spanish (download at tegam.com)

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1-2

Instrument Description

911A

Thermocouple Thermometer, Single Input

912A

Thermocouple Thermome te r, Dual Input

931A

Data Thermometer, Single Input

932A

Data Thermometer, Dual Input

TEGAM Family of Thermometers

Thermocouple

Thermometers

Data

Thermometers

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Preparation for Use

2. PREPARATION FOR USE

General Information

The TEGAM 911A and 912A Thermocouple The rmo met ers ar e hig h-accuracy handheld digital
thermometers that provide accura te tem pera ture re adi ngs in a wide range of manu factu ring
and service applications. Thes e full-featured, durable, and versatile instruments sim pli fy the
process of temperature me as ure ment through the intui tive user-interface. T he y are
compatible with the fo ur most popular NIST tracea bl e thermocouple types: E, J, K, and T.

Feature Overview

• Keypad with audible and tactile feedback

1

• 2000-hour battery life

• Four (4) digit dual LCD with LED Backlight

• Four (4) NIST-traceable thermocouple types: E, J, K, and T

• Comprehensive real-time statistics: MIN, MAX, AVG, RNG, STDEV , and T1-T2

• Easy to clean

• Probe offset function to minimize probe error

• 0.1° / 1 ° display resolution

• °F, °C, and K temperature units

• Reading HOLD mode

• Conforms to ITS-90 thermocouple tables

• Durable: Meets MIL-PRF-28800F, Class 2 requirements

• Optional Tilt Stand/Magnet/Hanger

• User-friendly operation

• Retains measurement parameters, even when turned off

• Self-diagnostic routine to identify fault conditions

• Low battery and open sensor indications

2

1

Typical battery life under normal use conditions in laboratory environment. Continuous or repeated use of

features such as the backlight, or use or storage at high or low temperature extremes may reduce battery life.

2

T1-T2 is available on model 912A only.

2-1

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Preparation for Use

could expose users to elevated potentials.

Never use this instrument or any temperature probe or sensor inside a microwave oven.

damage or personal injury could result from exceeding a probe’s maximum temperature rating.

Safety Notices and Information

Read this Operation Manual thoroughly before using the instrument to become familiar with its

Visually inspect instrument before using. Do not use if unit appears damaged or with any part of the

MAINTENANCE INSTRUCTIONS WITHIN THIS MANUAL ARE FOR USE BY QUALIFIED SERVICE

PERSONNEL ONLY. DO NOT ATTEMPT TO SERVICE THIS UNIT UNLESS YOU ARE QUALIFIED TO DO SO.

Disconnect all temperature probes and turn the unit off before removing the battery cover.

Never connect thermocouple leads to any source where more than 42 Volts (peak) could exist

between the lead and ground. If it is necessary to make measurements of an object at ele vated

electrical potential, the user is responsible for obtaining and properly using a probe that provides adequate

insulation between the surface with elevated potential and the thermocouple wiring.

Always disconnect probe leads before opening the battery door or the instrument housing.

Internal circuits can present a shock hazard if leads are connected to a source of elevated potential.

Do not use this instrument if the housing, probe wiring, probe, or probe handle are damaged

or distorted. Housings and wire insulation are part of the personnel protection system, and if damaged

Never use or store this product with batteries installed, or change b atteries, in an environment

where explosive or flammable vapors or dust suspensions may exist. For thermocouple

thermometers suitable for use in explosive environments, see TEGAM’s 921A or 922A Intrinsically Safe

Thermometers.

Do not attempt to recharge alkaline batteries.

Do not put batteries into bags designed to protect parts from electrostatic discharge (ESD).

These bags are specially designed with metal shielding which can short circuit a battery.

Do not expose batteries to extreme heat or fire. Observe all regional laws and regulations when

disposing batteries.

operations and capabilities.

case removed.

WARNING

SHOCK HAZARD

EXPLOSION H AZ ARD

BURN HAZARD

Do not touch a temperature probe sheath that has been exposed to toxic substances or

extremely high or low temperatures.

Do not attempt to measure temperatures beyond the range of the temperature probe. Probe

Safety Notices and Information continued on next page . . . .

2-2

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Preparation for Use

RISK OF INSTRUMENT DAMAGE

care to avoid static discharge when handling the instrument or connected probes.

Do not use when AC or DC voltages in excess of 1V exist between thermoco uple channels

(on instruments with more than one channel). Excessive voltage could result in an incorrect

reading, or in more extreme cases, a blown fuse that will result in incorrect readings and need for

repair.

Only replace batteries with size AA (IEC LR6, ANSI 15). Observe proper polarity when installing

batteries. Do not mix old and new batteries.

Do not apply voltages across thermocouple leads in excess of normal thermocouple voltage

for the selected range. Excessive input voltage could result in blown fuse, component damage, or

fire. Application of excessive voltage is not covered by the warranty.

Avoid making sharp bends in probe or sensor lead wires. Bending lead wires at sharp angles can

damage the wire and cause probe failure.

When using both thermometer inputs and a voltage differential exists between the two

measurement points, at least one probe should be electrically insulated. If not, a ground-loop

current can flow through the thermocouple leads causing measurement error or instrument damage.

Static discharge through a connected temperature probe may cause instrument damage. Use

RISK OF INCORRECT READING

CAUTION

2-3

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Preparation for Use

Unpacking and Inspection

Each instrument is electrically and mechanically inspected before s hipm e nt . Upon receiving
your new TEGAM T herm ocou ple Therm ome ter, unpack all items from the shipping container
and check for any obvious damage that may h a ve occurred during trans i t. Use the original
packing materials if reshipment is necessary.

If any dents, broken, or loose parts are seen, do no t u se the equipment. Notify TEG AM
immediately.

Check that all items are present. If any items are mis sing , notify TEGAM immediately.
The following items are included with every new instrument:

• One (1) Thermocouple Thermometer;

• One (1) Quick Start Guide;

• Statement of Traceability;

• Three (3) AA, 1.5 V batteries; and

• Optional accessories (if purchased).

Battery Installation and Replacement

Three (3) AA 1.5 V batteries are supplied with the instrument, but not installed. Read the
following battery replacement instructions before attempting to install or remove the
batteries.

CAUTION

Always turn the instrument off and disconnect any input connections before replacing
the batteries. Re-install the battery compartment cover before resuming use of the
instrument.

CAUTION

CAUTION

The battery compartment is sealed with a rubber gasket. Use care to not damage the
gasket when removing or installing the battery compartment cover.

Remove the batteries when storing the instrument for an extended period of time or
in a high temperature environment to prevent battery leakage and possible damage
to the instrument.

All measurement parameters may be reset to factory default if batteries are removed while
the instrument is powered on. Always turn the instrument off before changing batteries.

To install or replace batteries:
Required Tools: Phillips Head Screwdriver

1. Identify the battery comp a rtm e nt l o cated on the back of t he instrument (see
Figure 1 below);

2. Remove the two (2) battery compartme nt re tainin g screw s;

3. Remove the battery compartment cover;

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Preparation for Use

Retaining Screws

Battery

Gasket

4. If present, carefully remo ve old batteries being caref ul to not damage the battery
contacts;

5. Observing proper polarity, install three (3) new, AA alkaline (IEC LR6, ANSI 15)
batteries;

6. Re-install the battery cover and two (2) retaining screws;

7. At initial power on after battery replacement, allow approximately 30 second s for
instrument to stabilize.

Figure 1: Battery Installation

Making Your First Temperature Measurement

TEGAM’s 900 Series Thermocouple Thermometers are designed for easy operation, while still
providing a feature-ri ch experience via the intuitive user interfa ce .

To get started maki ng temperature measurements r i gh t away, follow these steps:

1. Perform Section 2.5, Ba ttery Insta ll ati on and Repla cem ent;

2. Connect a compatible temperature probe to t he Channel 1 and/or Channel 2 input
connector located at the to p of th e i nstr umen t;

3. The instrument will immediately display a temperature measurement for the

4. Set the desired measurement parameters as follows:

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To ensure best measurement accuracy, allow several minutes for the
thermocouple probe and connector to thermally stabilize af ter
connection to the instrument.

connected channels. However, to ensure valid and best accuracy measurements,
continue to Step 4 below;

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2-5

Preparation for Use

a. Enter the Set up Menu by pressing , hold the key down for

approximately 1.5 seconds, and then releas e it;

b. The active thermocouple type is flas hi ng on the display. Use to

select the thermocouple t yp e of the connected temperat ure probe (E, J,
K, or T);

c. Momentarily (do not hold) press to save your selection a nd move to

the next parameter;

d. The active temperatu re unit is flashing on the display. Use to

select the desired temperature uni t (°C, ° F, or K);

e. Momentarily press to save your selec tion and mo ve to the next

parameter;

f. Channel 1 probe o f fset value is flashing on the display. If the

temperature probe’s o ff set value is known, press to set the
Channel 1 probe offset to the prob e ’s offse t v alue. See Section 3.10,
Probe Offset, for more information.

g. Momentarily press to save your se l e c ti on and move to Channel 2

probe offset (if equipped);

h. If desired, repeat Step (f) above for Channel 2;

i. Momentarily press to save your selection and exit the setup menu .

Congratulations! You ’re now ready to make a cc ura t e an d reli abl e temperature
measurements, wherever and whenever you may need to.

We know you are eager to begin using your new thermometer, but this overview is just the
beginning. Please take a moment to familiarize yourself with this Operation Manual to learn
about all the features and bene fit s of your new TEGAM Thermocouple Thermometer.

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