Omega Engineering HH82A User's Manual
Contents
1. The auto power off function turns off the power automatically about 10 minutes after the last key operation of any key other than the Goweh eer key To disable the auto power off function simultaneously press the Commer key and arara key With this function disabled the has been turned on all the elements of the display light up i SET Power off instrument will stay powered continuously AUTO OFF POWER ser To turn off the power press this key for 1 second or longer Select To select a thermocouple type from K J E and T thermo If the power is already turned on turn it off couple type Press and hold down the key while pressing the owtaser key K J E T to turn on the power The thermocouple type and unit on the display flash indicating that the instrument is ready for changing thermocouple type E Every time the key is pressed the thermocouple type and unit C F changes Press the Goweeer key to accept the setting TIP The factory set default is type K To read maximum and minimum values and stored data maximum values from memory and minimum E When the aeao key is pressed the display changes values in the sequence shown in the figure on the right Read E For stored data select the memory number using the stored data or key After the memory number has been isplayed for a few seconds the value stored in that m2. Instruction HH81A HH82A C Manual Digital Thermometers Thank you for purchasing this instrument For proper use please read through this instruction manual prior to operation M3599 0600 Made in Japan Shop online at 0omega com This instruction manual describes the Model HH82A which has more functions than the Model HH81A However with the exception of the CEW key operation of the Model HH81A is performed in the same way 1 Cautionary Notes for Safe Use of the Product E The following safety symbols are used on this instrument and instruction manual to ensure safe use WARNING This symbol found on the back of the instrument calls attention to a potential danger or hazard capable of resulting in a serious injury or Joss of life and the operator must refer to this instruction manual to avoid the danger or hazard A WARNING This symbol in this manual indicates a potential danger or hazard capable of resulting in a serious injury or loss of life A CAUTION This symbol in this manual indicates a potential danger or hazard capable of resulting in severe but not irreversible injury or damage In some instances the hazards may be those associated with WARNING symbols but are of significantly less magnitude A NOTE This symbol draws attention to information that is essential for understanding how to operate the instrument and or instrument features TIP Gives information that complements the present topi
3. Press the READ key to display stored data Select the memory number you wish to clear E Press the key to clear the data To clear all the stored data in the memory at one time press and hold the key for 1 to 2 seconds TIP This operation does not affect the maximum and minimum values Select channel CEND HH82A oniy Hold QUA HOD Release hold ATA HOLD Select resolution Relative display REL sAD Cancel relative display To select the input channel from channel A B or A B Press this key With each press the display changes between A B and A B allowing you to select the input channel for measurement Ay NOTE Channel switching is disabled during the RCD mode By switching the channels when data is being tead you can display the data of each channel maximum and minimum values and measured data saved using the Memory in function Use this key to hold the measured value on LCD W To hold press this key E To cancel holding press this key again To select a display resolution B Press this key Every time this key is pressed the display resolution alternates between 0 1 C and 1 C within the range of 200 0 C to 199 9 C If 0 1 C is selected a resolution of 0 1 C is achieved when the display value is 199 9 C or below when it goes over 200 C the resolution changes to 1 C and the number of display digits is
4. K J E or T it is set to Type K at shipment from the factory Use an OMEGA type connector corresponding to the TC type for the probe 1 Load the batteries see section 5 Battery Replacement 2 Press the Gowsiser key to turn on the power When the power has been tumed on all indications on the display light up for about 2 seconds then a measured value appears 3 Check the thermocouple type If you wish to change the current setting tum off the power and follow the instructions in the section Sctect thermocouple type on the previous page 4 Select the Input channel HH82A only Press the GH _ key and select one channel from channel A B and A B see Select channel on the previous page 5 Connect the probe to the input connector If you are using the 2 channel model HH82A connect the probe s to the channel s you are using 6 When you have finished measurement turn off the power by pressing the Gowen cer key The power may be turned off by the auto power off function during measurement In this case press the key to restart the instrument and continue measurement If the power is turned off and then on again the instrument restarts with the same settings of the resolution 0 1 C or 1 C input channel channel A B or A B and thermocouple type K J E or T as before it was tumed off 7 Other operations For other operations such as display hold relative display and maximum and minimum record readout se
5. switched automati cally When chA B is selected the display is switched to the input value of channel A or B whichever is greater TIP The resolution setting is maintained even after the power is turned off The next time the power is turned on the instrument starts up with the setting that was set before the power was turned off Factory set resolution is 0 1 C To select relative display Press this key to select a relative display The display shows the difference relative value of a subsequent measured value Dx from the reading given as a reference value D1 when this key was pressed Relative display value Dx D1 The reference value affects measurements on all channels channel A channel B and channel A B Any value among MAX MIN and MEM can also be used as the reference value B To cancel relative display press this key again REL Set correction value REL ADJ POWER SET To set the correction value for simplified correction The current temperature reading can be corrected to a value based on the reference thermometer By thus eliminating probe specific errors you can take precision measurements over a frequently used temperature range As NOTE When you change the measurement probe the correction value must be set again regardless of the thermocouple type E Press and hold this key for 3 seconds The ADJ on the display flashes indicating that the instrument ts ready for set
6. ITIONS 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 uscd 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 of activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in uur basic WARRANTY DISCLAIMER language and additionally purchaser will indemnity 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 Dircct all warranty and repair requests inquirics 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 fur 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 FOR NON
7. WARRANTY REPAIRS consult OMEGA for current repair charges Have the following information available BEFORE contacting OMEGA L Purchase Order number to cover the COST of the repair 2 Model and serial aumber of the product and 3 Repair instructions and or specific problems relative to the product OMEGA s policy ix 10 make running changes not model changes whenever an tprovement is possible This affords our customers the fatest in technology and caginecring OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2000 OMEGA ENGINEERING INC All rights reserved This document may aot be copied photocopied reproduced translated oF reduced to any cloctronic medium or machine readable form In whole or in part without the prior written consent of OMEGA ENGINEERING INC
8. c To avoid accidents such as an electrical shock which may lead to injury or loss of life to the operator or damage to the equipment be sure to observe the following precautions WARNING Do not use the instrument to measure where there is the risk of electrical shock Also when using the 2 channel model always keep the probe to probe potential below 1 V When handling a needle type probe be careful not to point the tip in the direction of any person as doing so may result in an injury e After measuring anything with a high temperature do not touch the metal part of the measuring probe as this may result in a burn Z CAUTION When the instrument is stored for a long period of time be sure to remove the batteries Not doing so may tesult in a failure or malfunctioning of the instrument due to a leakage in battery liquid Do not use deteriorated or damaged probes as doing so will effect the Precision of measurements Before you detach the probe from the instrument always remove the probe from the object being measured When using a needle type probe do not insert the metal part of the measuring probe more than half its length into the object to be measured as doing so may result in a burn or damage to the probe due to the handle of the probe heating up Keep the handle of the probe and the cable that connects the probe to the instrument within a temperature range of 20 C to 50 C as they are less re
9. d applications and the accuracy tolerances shown below where the overall length of cable including the probe is assumed to be shorter than 3 m Accuracy tolerance of all available ranges 5 of span Tested at 3 V m and for standard applications Two AA alkaline dry batteries LR6 9 Regarding This Manual The contents of this manual are subject to change without prior notice This manual is intended to describe the functions of this instrument not to guarantee that the functions are suited to the particular purpose of the user 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 reccive maximum coverage on cach product Uf the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issuc an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it wilt be repaired or replaced at no charge OMEGA s WARRANTY docs not apply to defects resulting from any action of the purchaser including but nut limited to mishandling improper interfacing operation outside of design limits improper repair of unauthorize
10. d modification This WARRANTY is VOID if the unit shows cvidence of having becn tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heal moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA S control Componcats which wear arc not warranted including but 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 responstbil ity 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 WARRAN TIES 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 Jn no event shall OMEGA be tiable for consequential incidental or special damages COND
11. e the key operation list on the previous page Ay NOTE eS Key operation of this instrument is comparatively easy However it is necessary to make sure that the instru ment is not mistakenly set to a state other than that intended Note that under normal measurement HOLD RCD REL MAX MIN and MEM are not displayed 4 Precautionary Notes AS NOTE Each probe has its own maximum and minimum operating temperatures so ensure that its temperature does not fall outside the specified range As the probe is susceptible to corrosion do not use the instrument for the measurement of gas or liquid and refrain from measuring semi solid particles and semi viscous substances After measurement wipe the probe with a dry cloth Do not apply a strong force to the upper and lower parts of the probe as doing so may result in the bending of the probe connector When using the instrument be careful not to bend drop or strike the measurement probe When measuring surface temperature using a surface type probe position the probe perpendicular to the surface of the object Also note that the application of oil to the probe for the means of providing better contact can improve measurement accuracy When measuring non metallic surface temperature make sure the measurement time is long enough to compensate for poor thermal conductivity To ensure stable measurement the instrument should not be subject
12. ed to a sudden temperature change This instrument with the exception of the connector section is water resistant but not waterproof There fore the instrument should not be immersed in water If it is mistakenly immersed in water remove it immediately and check to ensure that no water has penetrated inside the case Although this instrument is designed so that any water penetrating into the connector does not permeate into the circuit inside the case try to prevent any water entering the connector If water does enter the connector the burnout display may be unavailable 5 Battery Replacement When the batteries approach the end of their lives the lt _ mark appears on the display If this mark is displayed teplace the batteries To replace the batteries 1 Remove the battery box cover from the back of the instrument Then replace the two AA alkaline dry batteries LR6 2 Refit the cover to the battery box A NOTE When inserting batteries be careful not to mistake the polarity as this can damage the instrument When the instrument is to be stored for a long period of time remove the batteries Do not leave dead batteries in the instrument as doing so may result in a failure or malfunction of the instrument due to a leakage in battery liquid Both batteries should be replaced with new ones at the same time as replacing only one of the batteries may tesult in the charge leaking from the new battery to the
13. emory is displayed NOTE e This data reading is disabled during thermo couple type selecting or correction value setting If you press the Read key when the REL mode is active each of the MIN MAX and MEM values is shown as a relative value based on the reference value D1 The number of display digits of maximum and minimum stored data depends on the current resolution setting not the number of display digits at the time when the data was measured Channel switching and display when data is being read TX10 03 only E Data while measuring values from a single channel either channel A or B Using the key display the channel used when the data was measured All of the maximum minimum and stored data values can be displayed E Data when measuring the difference between values of two channels channel A and B measurement Pressing the key to select channel A or B shows the minimum and maximum values as well as the memory value measured on that channel Pressing the key to select chA chB displays the stored values of the difference between channels A and B as well as the maximum or minimum difference values When the probe is not connected to the input connector or the sensor opens a burnout mark is displayed For the 2 channel mode the burnout mark is displayed when the probe is not connected to the selected channel channel A and B or channel A B Burnout To clear the recording memory DO
14. ng is cancelled The data will be updated when the RCD mode is enabled again 1f you enable the RCD mode when the REL mode is active the reading changes to a relative value Nevertheless the minimum and maximum of measured values Dx are stored in internal memory e Recorded maximum and minimum values can be referenced even after the power is turned off and on again because they are stored in memory antil the ROD mode ts enabled next time Auto power off is cancelled during the RCD mode Memory in To store data in internal memory maximum of 10 data items GATA HOLD E Press the GHD key to hold the measured value HOLD RECORD W Press the key The display automatically shows the smallest memory number under which no data has been recorded At this point the MEM symbol turns a v on to indicate that the thermometer is in the Memory in mode B Use these keys to select a desired memory number under which yor want 1 to record data In this step you can also check the existing data value TIP Pressing the aana key while a memory number is being displayed cancels the memory in function returns to measurement mode Press the key to store the data TIP The and EM symbols indicate that the value recorded with the memory in function ts being held and shown Press the Gaa noD key to return to normal measurement mode 3 Measurement This instrument can connect any of the 4 types of thermocouples Type
15. old 6 Cleaning lt If the instrument becomes dirty wipe the instrument with a cloth that has been dampened with water and well wrung lt If the instrument is very dirty use a cloth that has been dampened with a diluted neutral detergent Do not use other detergents solvents or chemicals Doing so may cause a failure of the instrument Avoid any water or other liquids from splashing onto the connector as this may cause a failure of the instrument 7 Maintenance Service For maintenance or repairs contact OMEGA Engineering Inc Customer Service Dept at 1 800 622 2378 8 Specifications Performance Specifications Thermocouple type Measurement channels Measuring range Measurement resolution Accuracy instrument Temperature coefficient Measurement cycle Operating environment Storage environment Power requirements Battery life General Functions Display Computing function Battery alarm Key operation sound Auto power off Range hold function Simple memory function Drip proof construction Simplified correction function Dimensions and Weight External dimensions Weight Compliance with Standards EMC standards Emission immunity Accessories Instruction manual K J E T Ich or 2ch 2ch multi function mode only Type K 200 C to 1372 C 328 F to 2501 6 F Type J 200 C to 1000 C 328 F to 1832 F Type E 200 C to 700 C 328 F to 1292 F Type T 200 C to 400 C 328 F
16. sistant to heat than the metal part of the measuring probe E Regarding Disassembling and Modification Do not disassemble or modify the instrument in any way The instrument should only be disassembled by a service engineer of omega com 2 Functional Description fT Display Maan ininum Gare Data hold status a Ato power off status va Displayed when max or _ min value is shown Displayed when stored _ data is shown Displayed in simplified correction mode Selected channel Data hold key Resolution select key Power ON OFF key Maximum and minimum value record key Data record key Thermocouple type select key Type K E T Maximum minimum Input channel select key and stored data read key Relative display select key d Simplitied correction mode key Cae Data call up key Key Operation and description Display Using the To users who use Fahrenheit as the temperature unit unit F To use the unit F follow the instructions below F POWER ser When turning on the power keep the owemser key held down Verity that the display shows the F symbol and then release the key After completing this step you can switch between C and F whenever you set the type of thermocouple By following the same procedure as above you can revert to the condition in which onty the unit C ts available Power on Press this key to turn on the power After the power
17. ting While measuring the reference temperature correct the display value to an optional value using the and Q keys The correction range is 20 C of the measured value Resolution of the correction value is determined according to the resolution setting TIP Holding down the or P key increases the speed with which the display value changes Press the Comer key to accept the setting ADJ flashes Simplified Use this key to enter and exit the simplified correction mode correction mode RELAI M To enier press this key for tu 2 seconds ADJ Cancel simplified correction mode f E To exit press this key for to 2 seconds again Recording of the maximum and minimum values maximum Detection and recording of the max min values starts when this key is and minimum Pressed and continues until this key is pressed again or the power is values tumed off To start recording press this key AX NOTE Enable the RCD mode after selecting the channel To stop the recording press this key again e Measurement on channel A B is done as described below Press the ReaD key to read the minimum and maximum values With the CoR key select channel A or B The display shows the MIN and MAX values for each channel i Cancel recording i Start of MIN MAX recording End of MIN MAX recording A amp A NOTE The maximum and minimum values are stored in internal memory even after recordi
18. to 752 F 200 0 C to 199 9 C 0 1 C or 1 C when 1 C resolution is set 200 C or higher 1 C 200 0 C to 100 1 C 0 1 of rdg 1 0 C 100 0 C to 199 9 C 0 1 of rdg 0 7 C 200 C or higher or when 1 C resolution is set 0 2 of rdg 1 C 0 015 of rdg 0 06 C C Approx second Ich model 2ch model when performing Ich measurement Approx 2 seconds 2ch model when performing 2ch measurement with no range switching 0 C to 50 C 20 to 80 RH no condensation 10 C to 60 C 5 to 95 RH no condensation Two AA alkaline dry batteries LR6 Approx 450 hours Reflective LCD 7 segment 4 digit display and 30 character segments MAX MIN REL Difference between 2 channels 2ch model only Displayed on LCD Internal buzzer sounds during key operation Turns off the power 10 minutes after the last key operation can be disabled Controls the range switching between 200 0 C to 99 9 C 0 1 C resolution and 200 C or higher 1 C resolution Stores up to 10 data items in memory Displays memory number and stored data value Protection Class IP 54 Based on the reference value entered manually Approx 151 H x 56 W x 33 D mm excluding protrusions Approx 180 g including batteries EMI interference signal EN55011 1998 EN61326 1 1998 A1 Class B Group H EMS immunity EN50082 1 1997 EN61326 1 1998 A1 The accuracy ratings of all ranges are the sum of the accuracy levels in standar
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