Omega HH803U User Manual

HH803U

DUAL INPUT K/J DIGITAL THERMOMETER

INSTRUCTION

SHEET

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M4542/0611

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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.

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INTRODUCTION

This instrument is a 5 digit, compact-sized portable
digital thermometer designed to use external K-type and J
type thermocouples as temperature sensor. Temperature
indication follows Reference Temperature/Voltage Ta­bles (N.I.S.T. Monograph 175 Revised to ITS-90) for
K-type and J-type thermocouples. One K-type thermo­couple is supplied with the thermometer.

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

WARNING

over 24V AC or DC.

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: 5 digit liquid crystal display (LCD).
Overload: “----.-” or “OL” is display.
Battery: 1.5V x 4 PCS (SIZE AAA) UM-4 R03.
Battery Life: 190 hours t
Auto power off: 30 minutes, press power key to resume

operation.

Dimensions: 160mm(H) x 83mm(W) x 38mm(D).
Weight: Approx. 265g including batteries.
Supplied Thermocouples (2 per input):

1 meter (40”) type K insulated beaded wire thermocouple.

ypical with carbon zinc battery.

Maximum insulation temperature is 482°C (900°F).

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

WARNING

leads, especially near the connector.

Thermocouple accuracy is ±1.1°C or 0.4% of reading
(whichever is greater) from 0°C to 1250°C.

OPERATING INSTRUCTIONS

1. “” Power Switch

The “

” key turns the thermometer on or off. In the SET
mode cannot be powered off. Exit SET mode to power
off.

APO function mode

SPECIFICATIONS

ELECTRICAL

Temperature Scale:
Measurement Range:

J-TYPE -200°C to 1050°C, (-328°F to 1922°F)
K-TYPE -200°C to 1370°C, (-328°F to 2498°F)

Resolution: 0.1°C or 0.2°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.
±(0.05% rdg + 0.3°C) -50°C to 1370°C
±(0.05% rdg + 0.7°C) -50°C to -200°C
±(0.05% rdg + 0.6°F) -58°F to 2498°F
±(0.05% rdg + 1.4°F) -58°F to -328°F

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 to122°F).

Input Protection:

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

Maximum Differential Common Mode Voltage
(Maximum Voltage between T1 during measurement):

1volt.

Reading Rate: 1 time per second.

External Connections:

1. USB Port

2. DC power JACK(12V)

Celsius or Fahrenheit user-selectable

1

2

Press “
the auto-power function. The display will show “APO
OFF”.

2. °C/°F Selecting the Temperature Scale

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 key.

3. “ ” Button (only Main display)

Press this 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 “
cancel HOLD mode and resume measurements.
In the MIN/MAX recording mode, press “
stop the recording. Press “
recording. (Previously recorded readings are not erased).

Backlight function mode

Press the “
on the backlight. Press the key again for more than two
seconds to turn off the backlight. The backlight will
switch-off automatically after 30 seconds.

4. Cold Junction Temperature Display mode

Press C.J. TEMP key to display the thermocouple input
connector cold junction temperature on second display.
Press C.J. TEMP key again to exit this mode.

” power key for more than 6 seconds to disable

” key again to

” key to

” key again to resume

” key for more than two seconds to turn

(second display)

5. K/J T1 Input Thermocouple Type Select
(Main display)

The K/J key selects the T1 thermocouple type, when the
main display is showing T1. When the thermometer is
turned on, it is set to the type selected when the ther­mometer was last turned off.

6. MIN MAX with Time record mode
(Main display)

Press MIN MAX key to enter the MIN MAX Recording
mode, (displays the Maximum reading with time, Mini­mum reading with time and Average reading stored in
record mode). In the this mode the automatic power-off
feature is disabled and

key, °C/°F key, REL key,
SET key, Hi/Lo Limits key, K/J, C.J. TEMP and Recall
keys are disabled. The beeper emits a tone when a new
minimum or maximum value is recorded. Present tem­perature reading displayed on second display. Press MIN
MAX key to cycle through the MAX, MIN and AVG
readings. If an overload is recorded, the averaging func­tion is stopped. In this mode, press the HOLD key to stop
the recording of readings, all values are held, press again
to restart recording.
To prevent accidental loss of MIN, MAX and AVG data,
this mode can only be cancelled by pressing and holding
the “MIN/MAX” key for

2 seconds. All recorded read-

ings are erased.

7. REL Relative mode (Main display)

Press REL key to enter the Relative mode, zero the dis­play, and store the displayed reading as a reference value
and annunciator REL is displayed. Present temperature
reading displayed on second display. Press REL key
again 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 REL key to enter the Relative mode, press
SET key use set Relative value as a reference value. Press
REL key again to exit the relative mode. In the Relative
mode, the value (can not >±3000.0 counts) shown on the
LCD is always the difference between the stored refer­ence and the

present reading.

8. Sec. Minu. Selecting the Time scale

Press this key to display the elapsed time on the third
display in either hours and minutes or minutes and sec­onds. When the thermometer is turned on, it is set to
seconds. To change the time scale, press sec. Minus. key.
Maximum elapsed time reading is 100 hours. If 100
hours is exceeded, the elapsed time resets to zero.

9. SET mode (Relative value set, Time set and

Hi/Lo Limits value set)

9.1 Press the “SET” key to enter relative values SET

mode (Press “ENTER” key to skip setting relative
value). = = = =.= is displayed on the main display.
The relative value
press overlay “ENTER” key to store the relative value,
and advance to elapsed time set mode.

9.2 Elapsed time set mode, (Press ENTER key to skip

is entered via overlay numbers,

Elapsed time set mode) =.= = = : = = is displayed in
second and third display. Time (hours, minutes, sec­onds) value is entered via overlay numbers, press
overlay “ENTER” key to store time value. Elapsed
time starts from set time value.

9.3 Hi Limit value set mode,

is displayed (Press
“ENTER” key to skip Hi Limit value set mode), = = =
=.= is displayed in main display, Hi Limit value is
entered via overlay numbers, then press “ENTER”
key to store the Hi Limit value. = = = =.= is displayed
in main display, Lo Limit value is entered via overlay
numbers, then press overlay “ENTER” key to store
the Lo Limit value and exit SET mode.

9.4 When the thermometer is turned on it uses the relative

value and Hi/Lo Limits values that were entered when
thermometer was last in use.

10. Relative value Recall display mode.

Press REL RECALL key to display the Relative set value
on second display. Press REL RECA
this mode.

LL key again to exit

11. Hi/Lo Limits value Recall display mode

Press Hi/Lo RECALL key to display the Hi set Limit
value on second display. Press Hi/Lo RECALL key again
to display the Lo Limits set value on second display.
Press Hi/Lo RECALL key again to exit this mode.

12. Hi/Lo Limits mode (Main display)

Press “Hi/Lo Limits” key to enter the Hi/Lo Limits com­parative mode,

is displayed. When the input tem­perature value exceeds the Hi or Lo Limits value, the
beeper emits a continuous or pulsed tone. Press “Hi/Lo
Limits” key again to exit the Hi/Lo Limits mode.

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.

*Software Operation manual is on the Software disk.

WARNING

removing the cover.

OMEGA ENGINEER ING, INC. warrants this u nit to b e free of defects in
mate rial s and work manship for a peri od of 13 m ont hs from date of
purchase. OMEGA’s WARRANTY ad ds 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
no charge. OMEGA’s WARRANTY does not apply to defects resulting from
any action of the purchas er, including but not limited to m ishan dling,
improper interfacing, operation outside of design limits, improper repair, or
unaut horiz ed modifica tion. This WARRANTY is VOID if the u nit shows
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, i

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 assumes liability for any damage s that
result from the use of its products in accordance with information
provided by O MEGA, either v erbal or writ ten. OMEGA wa rrants
onl y that the pa rts ma nuf act ure d by the co mpa ny will be as
sp e ci f ie d an d f re e o f de fe c ts . O ME G A MA KE S N O OTH ER
WA R RA NTI E S O R RE P R ES ENTA TI ONS OF AN Y KI ND
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 E BY DIS CL AI M ED . LI M IT ATI ON OF LIA BI L IT Y: The
remedies of purchaser set forth herein are exclusive, and the total
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upon which liability is based. In no event shall OMEGA be liable
for consequential, incidental or special damages.

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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 AN AU THORI ZED RETURN (AR) NUMBER
FRO M OMEGA’ S CUSTO MER SERVIC E DE PARTM ENT (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.

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

unit is found to be defective, it will be repaired or replaced at

nclude but are not limited to contact points, fuses, and triacs.

damage

RETURN REQUESTS / INQUIRIES

FOR 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 the
product, and

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

or

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