User Guide Heavy Duty Psychrometer + IR Thermometer Model
Contents
1. button 2 The IR sensor and laser pointer are located at the top of the meter 3 Point the sensor toward the surface to be measured 4 Press and hold the IRT button to begin measuring the surface temperature of a desired target IR TEMP and A will appear on the display The laser pointer will switch on to help aim the meter The measured IR surface temperature will appear on the lower display 6 When the IRT button is released the laser pointer will switch off and the reading will freeze data hold on the display for approximately 7 seconds 7 After the 7 second hold time the meter returns to the type k mode a WARNING Do not directly view or direct the laser pointer at an eye Low power jvisible lasers do not normally present a hazard but may present some potential for hazard if viewed directly for extended periods of time Data Hold 1 Press the HOLD buttons one for upper display and one for lower display to freeze the displayed value for the respective display Press again to unlock the display 2 The HOLD icon will appear on the display when the Data Hold mode is active 4 HD500 V3 1 12 07 MIN MAX Recording Mode 1 Press the MAX MIN button one for upper display and one for lower display to begin recording the Maximum and Minimum reading The REC MAX icon will appear and only the maximum value measured will appear in the display The display will update only if a value higher than the c2. RH 10 to 90 0 1 RH 2 RH lt 10 and gt 90 0 1 RH 3 RH Wet Bulb 6 88 to 140 F eye 21 6 to 60 C 0 1 F C calculated Dew Point 90 4 to 140 F Sie 68 to 60 C 0 1 F C calculated HD500 V3 1 12 07 Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for three 3 years from date of shipment a six month limited warranty applies to sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expres
3. The supplied communications cable connects to this jack and to a USB port on a PC The supplied software allows the user to view and save readings to the PC Instructions for use and features are detailed in the supplied software HELP utility 5 HD500 V3 1 12 07 InfraRed Measurement Considerations e When taking IR measurements the meter automatically compensates for ambient temperature changes Note that it may take up to 30 minutes to adjust to extremely wide ambient changes e Low temperature measurements quickly followed by high temperature measurements may require several minutes to stabilize as a result of the IR sensor cooling process e If the surface of the object under test is covered with frost oil grime etc clean before taking measurements e If an object s surface is highly reflective apply masking tape or flat black paint before measuring e Steam dust smoke etc can obstruct measurements e To find a hot spot aim the meter outside the area of interest then scan across in an up and down motion until the hot spot is located e IR measurements cannot be made through glass IR Theory IR thermometers measure the surface temperature of an object The meter s optics sense emitted reflected amp transmitted energy that is collected and focused onto the meter s detector The meter s circuitry translates this information into an LCD reading IR Field of View Ensure that the desired target is larger
4. 0 96 Textiles 0 90 HD500 V3 1 12 07 Specifications General Specifications Display Data Hold Sampling rate Sensors IR Distance to Spot ratio IR Spectral response IR Emissivity MIN MAX Auto Power OFF PC Interface Over range indication Low battery indication Power supply Operating conditions Dimensions Weight Weight Range Specifications Dual Display Multi function LCD with 9999 counts Freezes displayed reading 1 reading per second Relative Humidity Capacitance Air Temp Thermistor 30 1 6 to 14um 0 95 fixed Record and Recall lowest and highest readings Automatic shut off after 15 minutes can be disabled USB PC Communication with supplied software and cable for data acquisition Dashes appears on the LCD Battery symbol appears on the LCD 9V Battery Meter 32 to 122 F 0 to 50 C 80 RH max Main instrument 10 1 x 3 0 x 2 257 x 76 x 53mm 12 5 oz 355g Function Range Resolution Accuracy Temp 148 F to 20 F 3 0 reading 4 F type K 20 F to 2501 F 4 54909 3 0 reading 2 F 100 C to 30 C 0 1 lt 1000 3 0 reading 2 C 30 C to 1372 C 3 0 reading 1 C IR Temp 58 to 4 F aere 5 o 50 to 20 C 0 1 F C 9 0 F 5 0 C 4 to 932 F NEE nisa 20 to 500 C 0 1 F C 2 reading or 4 F 2 C Air Temp 4 to 140 F sci smide 20 to 60 C 0 1 F C 2 reading 2 F 1 C
5. Min button IR Measurement button F C units button Lower display HOLD button Lower display record Max Min button Backlight button Power button FON NOTE Battery Compartment Tilt Stand and Tripod Mount are located on the reverse side of the meter Display Description AN DAF WBN Low Battery icon PC communication icon Upper display function icons Upper display Laser pointer icon Lower display function icons Lower display Lower display function icons N OO BW amp 3 REC MAX MINGD PC LINK RH tited A IR TEMP KI nooo onni REC MAX MIN 7 HD500 V3 1 12 07 Operation Basic Measurements 1 Press the button to turn power on 2 The upper display will indicate Air Temperature Wet Bulb Temperature or Dew Point Temperature and Relative Humidity Press the WB DP button to toggle between Air WB or DP 3 The lower display will indicate Type K temperature or IR Temperature Press and hold the IRT button to select the IR Thermometer The TYPE K function will display if a type k probe is not inserted into the meter 4 Press the C F button to change the temperature units from C or F Non contact IR Surface Temperature Measurements The built in IR sensor can remotely measure the temperature of most a gt surfaces The Laser pointer allows the user to aim accurately when taking f non contact measurements 1 Turn ON the meter using the
6. User Guide Heavy Duty Psychrometer IR Thermometer Model HD500 Introduction Congratulations on your purchase of the Extech HD500 Psychrometer This handheld meter measures and displays Air Temperature Relative Humidity Dew Point Wet Bulb and also Surface Temperature using the built in IR thermometer This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Features e Triple digital LCD display e Fast response all data is calculated four times per second e Standard type k NiCr NiAl Thermocouple input jack suitable for any style of type k probe e Infrared thermometer to measure surface temperature e Red laser pointer included e LCD with Backlight e Automatic range selection e USB interface e Low battery indication e Auto Power off Safety e Use extreme caution when the laser pointer beam is on e Do not point the beam toward anyone s eye or allow the beam to strike the eye from a reflective surface e Do not use the laser near explosive gases or in other potentially explosive areas 2 HD500 V3 1 12 07 Meter Description 1 o NOaProwhd 9 10 11 12 13 14 15 Humidity amp Air Temperature Sensor Type K Thermocouple input jack Laser pointer beam IR temperature sensor USB Interface LCD Display Upper display HOLD button Upper display Temp Wet Bulb Dew Point button Upper display record Max
7. sed or implied Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Care Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy T Support line 781 890 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up to the minute product information visit our website www extech com Extech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 Copyright 2007 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 9 HD500 V3 1 12 07 10 HD500 V3 1 12 07 sr puR This datasheet has been downloaded from www EEworld com cn Free Download Daily Updated Database 100 Free Datasheet Search Site 100 Free IC Replacement Search Site Convenient Electronic Dictionary Fast Search System www EEworld com cn All Datasheets Cannot Be Modified Without Permission Copyright Each Manufacturing Company
8. than the spot size As the distance from an object increases the spot size of the area measured by the meter becomes larger The meter s field of view ratio is 30 1 meaning that if the meter is 30 inches cm from the target the diameter spot of the object under test must be at least 1 inch cm Refer below to the field of view diagram 2 60 1 30 0 5 15 wpe 30mm 200mm 50mm 1500mm Emissivity Most organic materials and painted or oxidized surfaces have an emissivity of 0 95 Inaccurate readings will result when measuring shiny or polished surfaces To compensate cover the surface under test with masking tape or flat black paint Allow time for the tape to reach the same temperature as the material underneath then measure the temperature of the tape or the painted surface 6 HD500 V3 1 12 07 Thermal Emissivity Table for Common Materials Material Emissivity Material Emissivity Asphalt 0 90 to 0 98 Cloth black 0 98 Concrete 0 94 Human skin 0 98 Cement 0 96 Leather 0 75 to 0 80 Sand 0 90 Charcoal powder 0 96 Earth 0 92 to 0 96 Lacquer 0 80 to 0 95 Water 0 67 Lacquer matt 0 97 Ice 0 96 to 0 98 Rubber black 0 94 Snow 0 83 Plastic 0 85 to 0 95 Glass 0 85 to 1 00 Timber 0 90 Ceramic 0 90 to 0 94 Paper 0 70 to 0 94 Marble 0 94 Chromium oxides 0 81 Plaster 0 80 to 0 90 Copper Oxides 0 78 Mortar 0 89 to 0 91 Iron Oxides 0 78 to 0 82 Brick 0 93 to
9. urrently displayed value is measured 2 Press the MAX MIN button again to display the minimum values The REC MIN icon will appear and only the minimum recorded value will appear in the display 3 Press the MAX MIN button again to display the currently measured values The REC icon will appear in the display and the Max and Min values will be stored in memory 4 Press and Hold the MAX MIN button for gt 2 seconds to exit the mode Auto Power Off The meter will automatically turn off after 15 minutes of operation if no buttons are pressed during this period Auto power off can be disabled by 1 Hold the IRT button and then press the button to turn the power on When disAPO appears in the display release the IRT button and the APO is disabled Low Battery When the battery reaches the minimum operating voltage the battery icon will appear in the display Replace the 9V battery when this happens Battery Replacement When the battery icon appears on the LCD the 9V battery must be replaced 1 The battery compartment is located on the rear of the meter 2 Press in and down on the arrow located above the tilt stand hinge 3 Replace the 9V battery 4 Replace the battery cover Backlight Press the backlight button to turn the backlight ON or OFF Note continuous use of the backlight function will reduce battery life USB Interface and Software The HD500 is equipped with a communication jack on its upper left side
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