Omega HH801B User Manual

OPERATING INSTRUCTIONS

MODEL HH801B

DUAL INPUT J/K/T/E

DIGITAL THERMOMETER

MADE IN TAIWAN

FEATURES:

Highly accurate thermometer with 0.1% basic accuracy.
Three displays for easy observations.
Thermocouple offset adjustment.
Four thermocouple types K/J/T/E for common use.
Robust protective holster.
Auto-Power Off and Backlight functions.
MIN/MAX/AVG/REL/HOLD/ functions.

SAFETY INFORMATION

It is recommended that you read the safety and opera-

tion instructions before using the thermometer.

WARNING

To avoid electrical shock, do not use this instrument

when working voltages at the measurement surface

over 24V AC or DC.

WARNING

To avoid damage or burns, do not make temperature

measurement in microwave ovens.

CAUTION

Repeated sharp flexing can break the thermocouple

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

leads, especially near the connector.

The symbol on the instrument indicates that the opera­tor must refer to an explanation in this manual.

SPECIFICATIONS

ELECTRICAL

Temperature Scale: Celsius or Fahrenheit user-selectable
Measurement Range:

Thermocouple Range

K-TYPE(0.1°C) -200°C to 1372°C, -328°F to 1999°F
J-TYPE(0.1°C) -210°C to 1200°C, -346°F to 1999°F
T-TYPE(0.1°C) -200°C to 400°C, -328°F to 752°F
E-TYPE(0.1°C) -220°C to 1000°C, -364°F to 1832°F

Auto range: 0.1°C/1°C, 0.1°F/1°F
Accuracy: Accuracy is specified for operating tempera-

tures over the range of 18°C to 28°C (64°F to 82°F), for
1 year, not including thermocouple error.
±(0.1%rdg+1°C) on -60°C to 1372°C
±(0.1%rdg+2°C) on -60°C to -220°C
±(0.1%rdg+2°F) on -76°F to 1999°F
±(0.1%rdg+4°F) on -76°F to -364°F

ENVIRONMENTAL

Ambient Operating Ranges:

0°C to 50°C (32°F to 122°F) <80% R.H.

Storage Temperature:

-20°C to 60°C (-4°F to 140°F) <70% R.H.

GENERAL

Display: 3_ digit liquid crystal display (LCD) with a

maximum reading of 1999.

Polarity: Automatic, positive implied, negative polarity

indication.

Overrange: “OL” or “-OL” is displayed.
Zero: Automatic.

Low battery indication: The “

” is displayed when the

battery voltage drops below the operating level.

Measurement rate: 1 sample/second.
Accuracy: Stated accuracy at 23°C±5°C, <75% R.H.
Dimensions: 160mm (H) x 83mm (W) x 38mm(D).

Weight: approx. 265g including batteries.

OPERATING INSTRUCTIONS

1. “ ” Power Button

The “

” key turns the thermometer on or off. In the

MAX/MIN record mode the meter cannot be powered

off. With the power off, push and hold this key for more
than 4 seconds to disable auto power-off and turn the
meter on.

2. “HOLD” Button

Press the “HOLD” key to enter the Data Hold mode,
the “HOLD” annunciator is displayed. When HOLD
mode is selected, the thermometer holds the present
readings and stops all further measurements.

Press the “HOLD” key again to cancel HOLD mode
and allow the thermometer to resume taking measure­ments. In the MAX/MIN recording mode, press the
“HOLD” key to stop the recording. Press “HOLD” key
again to resume recording. (Previously recorded read­ings are not erased.)

3. ”

/°F” Button

Press “

” button to toggle ON or OFF the backlight.
The backlight will switch-off automatically after 30 sec­onds. Readings are displayed in either degrees Celsius
(°C) or degrees Fahrenheit (°C). When the thermometer
is turned on, it is set to the temperature scale that was in
use when the thermometer was last turned off. To
change the temperature scale, press the “

/°F” button

for more than 2 seconds.

4. “REL” Button

Press the “REL” key to enter the Relative mode, zero
the display, and store the displayed reading as a refer­ence value. The annunciator REL will appear on the
LCD. Press the “REL” key for more than 2 seconds to
exit the relative mode. The relative value can also be
entered by the user. (See “SET mode” later in this man­ual). When the desired Relative value has been entered,
press the “SET” key to set Relative value as a reference
value. Press “REL” key again to exit the relative mode.

In the Relative mode, the value (can not be greater
than ±2,000 counts) shown on the LCD is always the
difference between the stored reference and the present
reading.

5. “Type” Button: K/J/T/E Thermocouple Type

The “TYPE” key selects the thermocouple type to be
used as an input. When the thermometer is turned on, it
is set to the type that was in use when the thermometer
was last turned off.

6. “MAX/MIN” Button: Record mode

Press “MAX/MIN” key to enter the MAX/MIN Re­cording mode, (displays the Maximum reading, Mini­mum reading, “MAX-MIN” reading and Average read­ing stored in record mode). In this mode the automatic

power-off feature is disabled and “

” key and all func­tion keys are disabled. The beeper emits a tone when a
new maximum or minimum value is recorded.

Push “MAX/MIN” key to cycle through the MAX,
MIN, MAX-MIN and AVG readings. If overload is re­corded, the averaging function is stopped and average
value displays “-OL”. In this mode, press the “HOLD”
key to stop the recording of readings, all values are held,
press again to resume recording. To prevent accidental
loss of MAX, MIN, “MAX-MIN” and AVG data, this
mode can only be cancelled by pressing and holding the
MAX/MIN key for 2 seconds to exit and erase recorded
readings.

7. “Hi/Lo” Button: LIMITS mode

Press the “Hi/Lo” key to enter the Hi/Lo LIMITS
comparative mode, “LIMIT” is displayed. When the in­put temperature value is above the Hi value, the beeper
emits a continuous tone and “Hi” is displayed. When in­put temperature value is below the Lo value, the beeper
emits a pulsed tone and “Lo” is displayed. Press the
“Hi/Lo” LIMIT key again to exit the Hi/Lo LIMIT

mode.

8. “ ” Button
The ” ” key increases the value of the selected
digit.(See “SET mode” later in this manual.)

9. “TC OFFSET” Button

This button allows the user to adjust the Cold Junc­tion Compensation offset up to ±5.0 counts. This value
is used to compensate for thermocouple sensor error.
When a value is entered, the readings displayed on the
LCD will be automatically adjusted to include this off­set. (See “SET mode” later in this manual.)

10. “ ” Button

The “ ” key moves to the next digit on the display
(See “SET mode” later in this manual.)

11.“ ” Button
The “ ” key decreases the value of the selected digit

(See “SET mode” later in this manual.)

12. “SET” Button
Allows user to set the Relative value, Hi/Lo Limits

value and Cold Junction Compensation value. Press
“SET” key to enter SET mode. The LCD displays“SET”
and set annunciator is show in the upper right.

Set Relative value:

Press “SET” key to enter SET mode, then Press

“REL” button to set relative value. SET”, “REL” and
“T1” annunciators are displayed.

Press “_” or ” ”to increase or decrease the value of

the flashing digit, press “ ”to advance to the next digit
Use “_” or ” ”to set positive or negative for this rela­tive value. Then press the ”ENTER” key to set the rela­tive value for T1. Follow the same procedure for T2. In
this Relative SET mode, the value can not be greater
than ±1999.9 counts. If this value more than ±1999.9
counts, “Err” displayed and a valid offset must be en­tered.

Set Hi/Lo Limit value:

Press “SET” key to enter SET mode, then Press Hi/Lo

button to set Hi/Lo Limit value. “SET”, “LIMIT”, “Hi”
and “T1” annunciator are displayed.

Press “_” or ” ”to increase or decrease the value of

the flashing digit, press “ ”to advance to the next digit
Use “ ” or ” ”to set positive or negative for this Hi/Lo
Limit value. Then press the “ENTER” key to store the
Hi limit value for T1. Follow the same procedure for T2
In this Hi/Lo Limit SET mode, the value can not be
greater than ±1999.9 counts. If this value more than
±1999.9 counts, “Err” displayed and a valid limit must
be entered.

Set Cold Junction Compensation (TC OFFSET):

Press SET key to enter SET mode, then Press TC

OFFSET button to set TC OFFSET value. First, “CJC”
is displayed on LCD. The meter will then enter SET
TC OFFSET mode. “SET” and “T1” annunciator are
displayed.

Press “ ” or ” ”to increase or decrease the value of

the flashing digit, press “ ” to advance to the next digit
Press “ ” or ” ”to set positive or negative for this TC
OFFSET value. Then press the “ENTER” key to store
the TC OFFSET value for T1, next enter the TC
OFFSET value for T2. In this TC OFFSET SET mode,
the value can not be greater than ±5.0 counts. If this
value more than ±5.0 counts, “Err” displayed and a
valid offset must be entered.

M4468/0310

Where Do I Find Ever ything I Need fo r

Pr ocess Measurement and Contr ol?

OM EGA…Of Course!

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TEMPERATURE

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Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

 

Wire: Thermocouple, RTD & Thermistor

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Calibrators & Ice Point References

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Recorders, Controllers & Process Monitors

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Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

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Transducers & Strain Gages

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Load Cells & Pressure Gages

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Displacement Transducers

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Instrumentation & Accessories

FLOW/LEVEL

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Rotameters, Gas Mass Flowmeters & Flow Computers

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Air Velocity Indicators

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Turbine/Paddlewheel Systems

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Totalizers & Batch Controllers

pH/CONDUCTIVITY

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pH Electrodes, Testers & Accessories

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Benchtop/Laboratory Meters

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Controllers, Calibrators, Simulators & Pumps

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Industrial pH & Conductivity Equipment

DATA ACQUISITION

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Data Acquisition & Engineering Software

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Communications-Based Acquisition System s

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Plug-in Cards for Apple, IBM & Compatibles

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Data Logging Systems

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Recorders, Printers & Plotters

HEATERS

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Heating Cable

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Cartridge & Strip Heaters

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ENVIRONMENTAL
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pH, Conductivity & Dissolved Oxygen Instruments

It is the policy of OMEGA Engineering, Inc.to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European
New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for
any errors it contains, and reserves the right to alter specifications without notice.

WARNING:

These products are not designed for use in, and should not be used for, human applications

.

WARRANT Y/ DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds
an additional one (1) month grace period to the normal one (1) year product warranty to
cover handling and shipping time. This ensures that OMEGA’s customers receive maximum
coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone
or written request. Upon examination by OMEGA, if the unit is found to be defective, it will
be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects
resulting from any action of the purchaser, including but not limited to mishandling,
improper interfacing, operation outside of design limits, improper repair, or unauthorized
modification. This WARRANTY is VOID if the unit shows evidence of having been tampered
w ith or s hows evidence of h aving been damaged as a result of excessive corrosion; or
current, heat, moisture or vibration; improper specification; misapplication; misuse or other
operating conditions outside of OMEGA’s control. Components in which wear is not
warranted, include but are not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products.
However, OMEGA neither assumes responsibility for any omissions or errors nor
assumes liability for any damages that result from the use of its products in
accordance with information provided by OMEGA, either verbal or written.
OMEGA warrants only that the parts manufactured by the company will be as
specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED,
EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser
set forth herein are exclusive, and the total liability of OMEGA with respect to this
order, whether based on contract, warranty, negligence, indemnification, strict
liability or otherwise, shall not exceed the purchase price of the component upon
which liability is based. In no event shall OMEGA be liable for consequential,
incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1 )
as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or
activity; or (2) in medical applications or used on humans. Should any Product(s) be used in
or with any nuclear installation or activity, medical application, used on humans, or misused
in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY /
DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold
OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department .
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN
ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on
the outside of the return package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.

FOR WARRANTY

RETURNS, please have
the following information availabl e
BEFORE contacting OMEGA:

1. Purchase Order number under which

the product was PURCHASED,

2. Model and serial number of the product

under warranty, and

3. Repair instructions and/or specific

problems relative to the product .

F OR NON-WARRANTY REPAIRS,

consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the

COST of the repair,

2. Model and serial number of th e

product, an d

3. Repair instructions and/or specific problems

relative to the product .

OPERATOR MAINTENANCE

WARNING

To avoid possible electrical shock, disconnect the ther-

mocouple connectors from the thermometer before

removing the cover.

Battery Replacement

1. Power is supplied by 4pcs 1.5V (AAA SIZE) uM-4
R03.

2. The “ ” appears on the LCD display when replace­ment is needed. To replace battery remove screws from
back of meter and lift off the battery cover.

3. Remove the battery from battery contacts and replace.

4. When not in use for long periods the batteries should be

removed.

5. Do not store in locations with high temperatures, or high

humidity.

Cleaning

Periodically wipe the case with a damp cloth and deter­gent, do not use abrasives or solvents.

Servicing North America:

U.S.A.:

Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified

Stamford, CT 06907-0047 USA
Toll Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Canada:

976 Bergar
Laval (Quebec), H7L 5A1 Canada
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada:

Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

®

Engineering Service: 1-800-872-9436/1-800-USA-WHEN

®

Mexico/

En Español: 001 [phone] FAX: [phone]

Latin America:

[e-mail] e-mail: [e-mail]

Servicing Europe:

Benelux

: Managed by the United Kingdom Office

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Czech Republic:

Frystatska 184
733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

France:

Managed by the United Kingdom Office
Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Germany/Austria:

Daimlerstrasse 26
D-75392 Deckenpfronn, Germany
Toll-Free: 0800 6397678 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

United Kingdom:

OMEGA Engineering Ltd.

ISO 9001 Certified

One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

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affords our customers the latest in technology and engineering.
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