Omega HH911T, HH912T User Manual
HH911T, HH912T
Thermocouple Thermometer
TM
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User’s Guide
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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.
Servicing North America:
U.S.A. Omega Engineering, Inc.
Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660 Fax: (203) 359-7700
e-mail: info@omega.com
For Other Locations Visit omega.com/worldwide
Table of Contents
Table of Contents
Instrument Description .............................................................................................. 2-1
Specifications .............................................................................................. 2-1
Optional Accessories and Ordering Information ................................................. 2-2
Omega Family of Thermometers ..................................................................... 2-2
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 Modes and Statistics .............................................................................. 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 Wire Detection On/Off ........................................................................... 3-8
Clear Function .............................................................................................. 3-9
Invalid Measurement Indications ..................................................................... 3-9
Resolution and Rounding Functions (Serial Number 2148 and later) ..................... 3-9
4. Service Information ........................................................................................... 4-11
Inspection and Cleaning .............................................................................. 4-11
Calibration ................................................................................................ 4-11
4.2.1 Verification Procedure .............................................................................. 4-11
4.2.2 Alignment Procedure ............................................................................... 4-12
Troubleshooting ......................................................................................... 4-15
Diagnostic Routines and Error Codes ............................................................. 4-17
Memory Sterilization ................................................................................... 4-17
A. Required Equipment ............................................................................................. A-i
B. Expanded Instrument Uncerta int ies ......................................................................... B-i
C. Instrument Verification Data Sheet ................................................................ C-4.2.2-i
Instrument Description
2-1
INSTRUMENT DESCRIPTION
Specifications
G
ENERAL SPECIFICATIONS
:
Basic Accuracy
±(0.04% |r dg | + 0. 3 °C )1
Conformity
ITS-90
Temperature Ranges
°C
°F
K
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
(HH911T)
Two (2) Mini-TC
(HH912T)
Probe Zero Fun ction
Resolutio n 0. 1 °C / °F /K
Display
Four (4) digit LCD, with Temperature, Units,
Function, Trend, Polari ty, Battery, and Decimal
Indicators
Display Backlight
Four (4) LED Backlight with 30-second timeout
Display Resolution
0.1° <1000°
1 ° ≥ 1000°
Reading Rate
3 / Second for Readings and Tren d Indi cato rs
Battery Type
3 AA (IEC LR6, ANSI 15) Alkali ne
Battery Life
2000 Hours Typical
Battery Ind i c ato r
Four (4) Sta ge Ba t tery Charge Indic a to r
Statistics
Minimum Readi n g
Maximum Reading
Average Reading
Reading Range
Standard Deviation
T1–T2 (HH912T only)
Keypad
Eight (8) momentary switches with audible and
tactile feedback
Clock
Elapsed Statistics Run Time
Power Cycle Configuration
Retention
Instrument retains last selected:
- Sensor Type
- Temperature Unit
- Offset Values
Input Current
±50 nA
Maximum Common Mode Vol ta ge 42 V peak to earth
1 V p-p between T 1
and T2
Instrument Description
2-2
Compliance
CE (2014/30/EU) / RoHS2 (2011/65/EU)
ESD
IEC 61000-4 2:2009, Class B
EMC
EN 55022:2010+A1:2015,
Class A; EN 6 1000-4
3:2006+A2:2010, 10 V/m (80
MHz to 1 GHz)
MIL-PRF-28800F, Class 2
E
NVIRONMENT
:
Standards
MIL-PRF-28800F, Class 2
UL 60079-0 § 26.4.2
Operating Temp
-20 to 55 °C
-4 to 131 °F
Temperature
Coefficient
For specification v a ri a nce s du e to ambient operatin g
temperature, se e t he Expanded Inst rum e n t Uncertainty ch arts
in Appendix
B of this manual. For ambient operating
temperatures not sh ow n i n Appendix B, accuracies shall be
interpolated linearly.
Humidity
<10 °C (50 °F): Non-condensing
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
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 t o C o nc ret e
Storage Temp
-40 to 71 °C
-40 to 159 °F
P
HYSICAL CHARACTERISTICS
:
Dimensions
193 x 84 x 28 mm
7.6 x 3.3 x 1.1 in
Weight (incl.
Batteries)
HH911T: 300.9 g (10.6 oz.) HH912T: 303.2 g ( 10.7 oz.)
1
For complete instrument accuracies, see the Expanded Instrument Uncertainty charts in Appendix B of
this manual.
Optional Accessories and Ordering Information
P
RODUCT
M
ODEL
D
ESCRIPTION
Visit omega.com for available thermocouple
probes
Printed Manual
M5610/0918
Operation Manual
Omega Family of Thermometers
Thermocouple
Thermometers
HH911T
Thermocouple Thermometer, Single Inpu t
HH912T
Thermocouple Thermometer, Dual Input
HH931T
Data Thermometer, Single Input
Instrument Description
2-3
Data
Thermometers
HH932T Data Thermometer, Dual Input
Preparation for Use
2-1
2. PREPARATION FOR USE
General Information
The Omega HH911T and HH912T Thermocoupl e Th erm omete rs a re hig h -accuracy handheld
digital thermometer s t ha t p ro vi de accurate temperatu re readings in a wide range of
manufacturing and service applicati ons . These full-featured, durable, and ve rs atil e
instruments simplify the process of temperature measurement through the in tuitive userinterface. They are compatibl e w it h t he four most popular NIST traceable thermocouple
types, K, J, T, and E.
Feature Overview
• Keypad with audible and tactile feedback;
• 2000-hour battery life
1
;
• Four (4) digit dual LCD with LED Backlight
;
• Four (4) NIST-traceable thermocouple types: J, K, T, and E;
• Comprehensive real-time statistics: MIN, MAX, AVG, RNG, STDEV, and T1-T2
2
;
• 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
;
• Tilt Stand/Magnet/Hanger
• User-friendly operation
;
• Retains measurement parameters, even when turned off
;
• Self-diagnostic routi ne to identif y fault conditions
;
• Low battery and open sensor indications
;
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 HH912T only.
Preparation for Use
2-2
Safety Notices and Information
Symbols and Term s
Safety Notices de note h azard s. They indi ca te an o pera ting p roced ure, i nstr ucti on, or pr acti ce
that, if not correctly performed or followed, could result in damage to equipment, or injury or
death to personnel. Do not proceed beyond a Safety Notice until all conditions and instructions
are fully unde rs tood and complied with.
WARNING WARNING denotes a hazard that could result in injury to personnel or death.
CAUTION CAUTION denotes a hazard that could result in damage to the unit or other equipment.
REMINDER denotes important information about instrument functions, menus, and
measurements.
Instrument Safety Notices
WARNING
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.
SHOCK HAZARD
Disconnect all temperature probes and turn the unit off before removing the battery cover.
Never connect therm ocouple leads t o any sou rce whe re more than 42 Volts (pe ak) co uld exis t
between the lead and ground. If it is necessary to make measurements of an object at elevated
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
could expose users to elevated potentials.
EXPLOSIO N HAZ AR D
Never use or store this product with batteries installed, or change batteries, in an
environment where explosive or flammable vapors or dust suspensions may exist.
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.
Never use this instrument or any temperature probe or sensor inside a microwave oven.
BURN HAZARD
Do not touch a temperature probe sheath that has been exposed to toxic substances or
extremely high or low temperatures.
Preparation for Use
2-3
Do not attempt to measure temperatures beyond the range of the temperatur e probe. Probe
damage or personal injury could result from exceeding a probe’s maximum temperature rating.
CAUTION
RISK OF INCORRECT READING
Do not use when AC or DC voltages in excess of 1V exist between thermocouple 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.
RISK OF INSTRUMENT DAMAGE
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 care
to avoid static discharge when handling the instrument or connected probes.
Preparation for Use
2-4
Unpacking and Inspection
Each instrument is electrically and mechanically inspected before shipment. Upo n r eceiving
your new Omega digital thermome ter, unpack all items from the shipping container a nd
check for any obvious dama ge that may have occurr ed duri ng tr ansit. Use t he origi nal
packing materials if reshipment is necessary.
If any dents, brok en, or loose parts are se e n, d o not use the equi pme nt . N otify Omega
immediately.
Check that all items are pre sent. If any item s are miss ing, notify Omega 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 s up p l i e d 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. R e -install the battery compartment cover before resuming use of the
instrument.
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.
CAUTION
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: P hi l li ps Head Screwdriver
1. Identify the ba t tery compartment l o cated on the bac k o f t he instrument (see
Figure
1 below);
2. Remove the two (2) batte ry compa rtmen t retai nin g screw s;
3. Remove the battery compartment cover;
4. If present, careful ly remove old batte ri es be ing careful to not d am age 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;
Preparation for Use
2-5
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
Omega’s 900 Serie s Digit al H andhel d Therm omete rs are designe d for easy operation, while
still providing a featur e-rich experience via the intuitive user i n te rfa ce.
To get started making tempera tur e m e as u rem e nts right away, f ollow these step s :
1. Perform Section 2.5, Battery Install ati on and Rep lace men t;
2. Connect a compati b l e temperature pr obe to the Channe l 1 and/or Channe l 2 i nput
connector located at the to p of th e ins trum ent ;
To ensure best measurement accuracy, allow several minutes for the
thermocouple probe and connector to thermally stabil i z e after
connection to the instrument.
3. The instrument will immediately display a temperature measurement for the
connected channel s. H ow e ve r, to en su re valid and best accuracy measurements,
continue to Step 4 below;
4. Set the desired measurement parameters as follows:
a. Enter the Setup Menu by p r ess ing , hold the ke y d own for
approximately 1.5 seconds, and th en rele ase it;
b. The active thermocouple type is flashing on the display. Use to
select the thermo co upl e type of the conne c ted te mper atur e pr obe (E, J,
K, or T);
c. Momentarily (do not hold) press to save your se lecti on a nd move to
the next parameter;
Retaining Screws
Battery
Compartment
Gasket
Preparation for Use
2-6
d. The active tempe ratu 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 move to the nex t
parameter;
f. Channel 1 probe offset value is fl a shing on the display. If the
temperature prob e’s offset value is known, press to set the
Channel 1 probe offse t t o the pr ob e’s offse t val ue. See Section 3.10,
Probe Offset, for more information.
g. Momentarily press to save your se l ection and move to Channel 2
probe offset (if equipped);
h. If desired, repeat Step (f) above for Channel 2;
i. Momentarily press to save you r se l ection and exit the setup
menu.
Congratulation s! Y ou’re now re ady t o make accurate and reli abl e temperature
measurements, wherever and whene ve r you m ay nee d to.
We know you are eager to begin using your new thermometer, bu t this overview is just the
beginning. Please take a moment to familiarize yourself with this Operation Manual to l ea rn
about all the featu res and bene fi ts of you r new Omega Thermocouple Thermometer.
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