Omega Products HH804 Installation Manual

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HH804

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M4730/0410

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INSTRUCTION

HH804
HH804U

DUAL INPUT RTD DIGITAL THERMOMETER

SHEET

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Main Display

Second Display

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On-Line Service

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Servicing North America:

U.S.A: OMEGA Engineering, Inc.

ISO 9001

ISO 9001 One Omega Drive, P.O. Box 4047

ISO 9001ISO 9001
Certified

Certified Stamford, CT 06907-0047 USA

CertifiedCertified

Toll-Free: 1-800-826-6342
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

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

For immediate technical or application assistance:

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

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

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

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Servicing Europe:

Benelux: Managed by the United Kingdom Office
Toll-Free: 0800 099 3344
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

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

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

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

United OMEGA Engineering Ltd.
Kingdom: One Omega Drive,

ISO 900

ISO 9001111 River Bend Technology Centre, Northbank,

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Certified

Certified Irlam, Manchester M44 5BD England

CertifiedCertified

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

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.

INTRODUCTION

This instrument is a 4½ digit, compact-sized portable
digital thermometer designed to use external 100Ω Platinum
RTD as temperature sensor. Temperature indication follows
Reference Temperature/Resistance Tables (Pt385 for Euro­pean Curve, Alpha=.00385. Pt3926 for American Curve,
Alpha=.003926. Pt3916 for Japan Curve, Alpha=.003916.)

SAFETY INFORMATION

It is recommended that you read the safety and operation
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.

SPECIFICATIONS

ELECTRICAL

Temperature Scale:
Measurement Range:

Pt385(100Ω) -200°C to 800°C, (-328°F to 1472°F)
Pt3916/Pt3926(100Ω) -200°C to 630°C, (-328°F to 1166°F)

Resolution: 0.1°C or 0.2°F
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 RTD probe error.
±(0.05% rdg + 0.2°C) on °C scale
±(0.05% rdg + 0.4°F) on °F scale

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.

Maximum Differential Common Mode Voltage (Maxi­mum Voltage between T1 and T2 during measurement):

1volt.

Reading Rate: 1 time per second.
Input Connector:

Accepts for RTD 3 wires or 4 wires subminiature 4-Prong
type 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: 4½ digit liquid crystal display (LCD) with maxi-

mum reading of 19999.
Overload: “----.-” or “OL” is display.

Celsius or Fahrenheit user-selectable

Battery: 1.5V x 4 PCS (SIZE AAA) UM-4 R03.
Battery Life: 200 hours typical with carbon zinc battery.

Reading Rate: 1 time per second.
Auto power off: 30 minutes, press power key to resume

operation.

Dimensions: 160mm(H) x83mm(W) x 38mm(D).
Weight: Approx. 260g including batteries.
Wire Communication Protocol:

19200 baud rate. (HH804U)
External Connections: (HH804U)

1. USB Port

2. DC power JACK(12V)

OPERATING INSTRUCTIONS

1.

“ ”

Power Button

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

Press “ ” power key for more than 6 seconds to disable the
auto-power function. The display will show “APO OFF”.

2. °C/°F Selecting the Temperature Scale (Main
display)

Reading the main 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. “ ” Display Back-Light

Press the “ ” key to turn on or turn off the Back-Light.

4. “T1 T2/T1-T2” Main display Input Selection

The input selection indicates which input is selected for main
display; T1 probe, T2 probe or the difference between the
two probes (T1-T2). When the thermometer is turned on, it is
set to T1, when main display input selected T1, then T1 input
can select alternate of probe by pressing
Pt385/Pt3926/Pt3916 key switch.

5. “TYPE”(Pt385/Pt3926/Pt3916) Input RTD
Probe Select (only Main display)

The “TYPE” key switches the T1 input to select the Pt385,
Pt3926 or Pt3916 RTD probe as input, when main display
input selected T1. When the thermometer is turned on, it is
set to the probe selected that was in use when the thermome­ter was last turned off.

6. “MIN/MAX” with Time record mode
(only 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 and main display “T1 T2 T1-T2” key,
“TYPE” key are disabled. The beeper emits a tone when a
new minimum or maximum value is recorded.
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

TEMPERATURE

Made in Taiwan

mode can only be cancelled by pressing and holding the
“MIN/MAX” key for 2 seconds. All recorded readings are
erased.

7. REL Relative mode (only Main display)

Press the “REL” key to enter the relative mode, zero the
display, and store the displayed Reading as a reference value.
REL is shown on the display. Press “REL” key again to exit
the relative mode. The relative reference 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 and than press “SET”
key use the entered relative value as a reference value. Press
“REL” key again to exit the relative mode. In the relative
mode, the value (can not >±1999.9 counts) shown on the
LCD is always the difference between the stored reference
and the present reading.

8. HOLD mode (only Main display)

Press the “HOLD” key to enter the Data Hold mode, the
“HOLD” annunciator is displayed. When HOLD mode is
selected, the thermometer held the present readings and stops
all further measurements. Press the “HOLD” key again to
cancel HOLD mode causing thermometer to resume taking
measurements. In the MIN/MAX recording mode, press
“HOLD” key to stop the recording. Press “HOLD” key again
to resume recording. (Previously recorded read are not
erased).

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
is entered via overlay numbers, 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

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, (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. T1/T2 T1-T2 second display Input Selection

The input selection indicates which input is selected for
second display; T1 probe, T2 probe or the difference between
the two probes (T1-T2), when the thermometer is turned on,
it is set to T2 input can select alternate of probe by second
display Pt385/Pt3926/Pt3916 key switch.

11. TYPE(Pt385/Pt3926/Pt3916) Input RTD Probe

select (second display)

The Pt385/Pt3926 key switches the T2 input to select the
Pt385, Pt3926 or Pt3916 RTD probe as input, when second
display input selected T2. When the thermometer is turned on,
it is set to the RTD selected that was in use when the ther­mometer was last turned off.

12. Hi/Lo Limits mode (only Main display)

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

RTD PROBE CONNECTION

P/N: 14061-0800-9 MINI DIN PLUG

Rear view

Front view

3 Wires 4 Wires

TEMPERATURE VSRESISTANCE TABLE (ITS90)

°C Pt385 Pt3926 Pt3916

-200°C 18.521Ω 16.996Ω 17.057Ω

-100°C 60.256Ω 59.479Ω 59.565Ω
0°C 100.000Ω 100.000Ω 100.000Ω

100°C 138.505Ω 139.272Ω 139.171Ω
200°C 175.856Ω 177.362Ω 177.155Ω
300°C 212.052Ω 214.275Ω 213.957Ω
400°C 247.092Ω 250.018Ω 249.584Ω
500°C 280.977Ω 284.591Ω 284.036Ω
600°C 313.708Ω 317.994Ω 317.313Ω
700°C 345.280Ω - ­800°C 375.700Ω - -

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

WARNING

removing the cover.

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.

WARRANTY / 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 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 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 it will be as specified and free of defects.
OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF
ANY KIND WHATSOEVER, EXPRESS 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.

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 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.

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.

© Copyright 2010 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.

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