Omega HH801A User Manual

HH801A

DUAL INPUT K/J DIGITAL THERMOMETER

INSTRUCTION

SHEET

Shop online at: omega.com e- mail: [e-mail]

MADE IN TAIWAN

M4460/0711

For latest product manuals: omegamanual.info

Temperature Coefficient:

0.1 times the applicable accuracy specification per °C
from 0°C to

18°C and 28°C to 50°C (32°F to 64°F and

82°F to 122°F).

Input Protection:

24V dc or 24V ac rms maximum input voltage on any
combination of input pins.

Reading Rate: 1 time per second.
Input Connector:

Accepts standard miniature thermocouple connectors
(flat blades spaced 7.9mm, center to center).

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:

3½ digit liquid crystal display (LCD) with maximum
reading of 1999.

Overload: “-OL” is displayed.
Battery:

1.5Vx4pcs AAA size.

Battery Life:

150 hours typical with carbon zinc battery.

Auto Power Off:

Approximately 20 minutes.

mensions:

Di

160mm(H) x 83mm(W) x 38mm(D).

Weight: 230g.
Supplied Thermocouples (2 per input):

1 meter (40”) type K insulated beaded wire thermocouple.
Maximum insulation temperature is 482°C (900°F).
Thermocouple accuracy is ±1.1°C or 0.4% of reading
(whichever is greater) from 0°C to 1250°C.

OPERATING INSTRUCTIONS

1. “

” Power Button

Press the “

” button to turn on or off thermometer.

OMEGAnet On-Line Service

U.S.A: One Omega Drive, Box 4047

ISO 9001 Tel: [phone] FAX: [phone]
Certified

Canada: 976 Bergar

U.S.A Sales Service: 1-800-826-6342/1-800-TC-OMEGA
and Customer Service: 1-800-622-2378/1-800-622-BEST
Canada:

Mexico: En Espan ol: [phone]-7803

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

Czech Frystatska 184, 733 01 Karviná, Czech Republic
Republic: Tel: [phone] FAX: [phone]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

Germany/ Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Austria: Tel: + 49 (0)7056 9398-0 FAX: [phone]

United One Omega Drive, River Bend Technology Centre
Kingdom: Northbank, Irlam, Manchester
ISO 9002 M44 5BD United Kingdom
Certified

®

omega.com

Servicing North America:

Stamford, CT 06907-0047

e-mail: [e-mail]

Laval (Quebec) H7L 5A1, Canada
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

e-mail: [e-mail]
FAX: [phone] [e-mail]

Servicing Europe:

Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Toll Free: 0800-1-66342 e-mail: [e-mail]

Tel: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [e-mail]

Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

Internet e-mail

[e-mail]

®

FEATURES:

Data Storage for 125 samples
Highly accurate single input thermometer with 0.1%
basic accuracy
Large display for easy to read
Robust protective Holster
Thermocouple offset adjustment
°C/°F selection
MIN/MAX/HOLD functions
Display backlight
Auto-Power Off (APO)
Auto-Range: 0.1/1°
Wide measuring ranges suitable for numerous applica­tions

®

INTRODUCTION

This instrument is a portable 3½ digit, compact-sized
digital thermometer designed to use external K type and J
type thermocouples. It also has the feature that sensor
offset can be adjusted for in the field. There are 2 inputs
for miniature thermocouple connectors at the top of the
instrument marked T1 and T2.

SAFETY INFORMATION

It is recommended that you read the safety and opera­tion instructions before using the thermometer.

To avoid electrical shock, do not use this instrument

when working voltages at the measurement surface

To avoid damage or burns, do not make temperature

measurement in microwave ovens.

Repeated sharp flexing can break the thermocouple

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

leads, especially near the connector.

WARNING

over 24V AC or DC.

WARNING

CAUTION

2. “ /°C/°F” Button

SPECIFICATIONS

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.

should not be used for, human applications.

These products are not designed for use in, and

ELECTRICAL

Temperature Scale:

Celsius or Fahrenheit user-selectable.

Measurement Range:

K-Type -100°C to 1372°C, (-150°F to 1999°F)
J-Type -100°C to 1200°C, (-150°F to 1999°F)

Resolution:

1 degree or 0.1 degree from -59.9 to 199.9 degree °C or
°F (auto ranging).

Accuracy:

Accuracy is specified for operating temperatures 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 °C, ±(0.1% rdg + 2°F) on °F

Readings are displayed in either degrees Celsius(°C) or
degrees Fahrenheit(°F). 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 “°C/°F” button.

3. “ /

Press the “
“
press “

” Button

” button to turn on the backlight. Press the

” button again to make the backlight brighter and

” button once more to turn off the backlight.

Backlight on  Brighter  Backlight off.

4. “ADJ/HOLD” Button

Press the “HOLD” button to enter the Data Hold mode,
the “HOLD” annunciator is displayed at the top of the
display.
When HOLD mode is selected, the thermometer holds
the present readings and stops all further measurements.
Pressing the “HOLD” button again cancels HOLD mode,
causing the thermometer to resume measurement.

5. “APO/TYPE” Button

Press “TYPE” button to select the type of thermocouple
“K” or “J”. Make sure the proper type has been selected.
Pressing and holding down “APO” button for 2 seconds
will turn on or off the APO(Automatic Power Off) mode,
and the APO annunciator will appear or disappear on the
display. Power is automati

cally turned off if no button is

pressed for a period of time.

6. “MAX MIN” Button

Press “MAX MIN” button to enter the MAX MIN re­cording mode. Press “MAX MIN” button to cycle
through the MAX, MIN, MAX-MIN readings. In this
mode, press “HOLD” button to stop recording, all values
are held, press again to resume measurement. In this
mode, the APO function and other buttons are disabled,
excluding “HOLD” and “

” buttons.
To prevent accidental loss of MAX, MIN and MAX-MIN,
this mode can only be cancelled by pressing and holding
down the “MAX MIN” button for 2 seconds to exit and
clear readings.

7. “CLR/READ” Button

Press “READ” button to enter READ Mode, the “READ”
annunciator is displayed in the upper right corner. Press
“ ”or “ ” button to review the recorded data. The LCD
automatically alternates between the data and index.
Press the “CLR” button and hold down for 2 seconds to
clear the memory data.

8. “REC” Button

Up 125 data points can be recorded into memory.
Press “REC” button once to record each data point. When
the data is recorded, “REC” is displayed in the upper
right corne

r. If the memory is full, data will not be re­corded into the memory and “REC” will not be displayed.
Data can be recorded again after the memory is cleared.

9. “T1 T2/T1-T2/ ” Button

Press “T1”, “T2”, “T1-T2” button to select input mode
T1, T2 or T1-T2. The input selection indicates which
input is selected for display, T1 thermocouple, T2 ther­mocouple or the differential between the two thermocou­ples (T1-T2).

ADJUST THERMOCOUPLE OFFSET

1. Insert the thermocouple into a known temperature (T)
until the display stabilizes near the known temperature
(T).
example: ice point at 0°C or boiling water at 100°C

2. Press and hold the “ADJ/HOLD” button for 2 seconds
until the display starts to blink.

3. Press “ ” or “ ” to adjust the displayed value.

4. It can be adjusted ±6°F (±3°C) from default. If you can
not adjust your reading

to match the known tempera­ture (T), please check your T/C type. The meter may
require calibration.

5. Press “ENTER” button to confirm.

OPERATOR MAINTENANCE

To avoid possible electrical shock, disconnect the

thermocouple connectors from the thermometer before

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 screw 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 remove battery.

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.

WARNING

removing the cover.

OMEGA ENGINEER ING, I NC. wa rrants this un it to be free o f defe cts in
mate rials and workman ship for a pe riod of 13 months from date of
purchase. OMEGA’s WARRANTY adds an additional one (1) month grace
period to th
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 p urchaser, includi ng but not limite d to mishan dling,
improper interfacing, operation outside of design limits, improper repair, or
unaut horized mo
evidence of having been tampered with or shows evidence of having 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
omission s or errors nor as sumes liability for an y dama ges t hat
result from the use of its products in accordance with information
provided by O MEGA, ei ther ve rbal or writte n. OMEG A warra nts
onl y t hat
sp ec ifi ed an d fre e of def ect s. OME GA MA KES N O OTH ER
WA RR ANT IE S OR RE PRE SE NTAT IO NS O F A NY K IN D
WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE,
AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
AR E HER EBY D ISCL AI MED . LIM ITATI ON OF LI ABI LIT Y: 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 medic
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 assume s no resp onsibil ity a s set fort h in our basic
WARRA NTY / DISCLA IMER languag e, a nd, additio nally, purcha ser 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.

Direct all warranty and repair requests/inquiries to the OMEGA Customer
Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA,
PURCH ASER MUST OBTAIN A N AUT HORIZED RETURN (AR) NUMBER
FRO M O MEGA’S CUST OMER SERVI CE DEPARTM ENT (IN ORDER TO
AVOID PROCESSING DELAYS). The assigned
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.

ARRANTY RETURNS, please

FOR W
have the following information
available 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.

OMEGA’s policy is to make running changes, not model changes, whenever
an improvement is possible. This affords our customers the latest in
technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2011 OMEGA ENGINEERING, INC. All rights reserved. This
document may not be copied, photocopied, reproduced, translated, or
reduced to any electronic medium or machine-readable form, in whole or
in part, without the prior written consent of OMEGA ENGINEERING, INC.

WARRANTY/DISCLAIMER

e normal one (1) year product warranty to cover handling

dific ation. This WARRANTY is V OID i f the unit show s

the parts manu factur ed by the compa ny will be as

RETURN REQUESTS / INQUIRIES

AR number should then be

FOR NON-WARRANTYREPAIRS,
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 the
product, and

3. Repair instructions and/or specific
problems relative to the product.

al applications or

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

TEMPERATURE

Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
Calibrators & Ice Point References
Recorders, Controllers & Process Monitors
Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

Transducers & Strain Gages
Load Cells & Pressure Gages
Displacement Transducers
Instrumentation & Accessories

FLOW/LEVEL

Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers

pH/CONDUCTIVITY

pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment

DATA ACQUISITION

Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Data Logging Systems
Recorders, Printers & Plotters

HEATERS

Heating Cable
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
Laboratory Heaters

ENVIRONMENTAL MONITORING AND CONTROL

Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments