User's Guide Differential Thermometer Datalogger Model HD200 Introduction Congratulations on your purchase of the Extech HD200 Differential Thermometer Datalogger. The HD200 supports differential temperature measurements using dual Type K thermocouple probe inputs and provides selectable units of °C, °F or °K. The large backlit LCD displays a versatile combination of readings: T1, T2, T3, T1-T2, T1-T3, T2-T3, plus MAX-MIN-AVG readings. The electronic offset feature permits compensation adjustment for thermocouple errors and to maximize overall accuracy. The HD200 can also make non-contact temperature measurements with the supplied IR thermometer probe. The HD200 datalogger can store 18,000 measurement readings (for each channel) in the meter’s internal memory. Stored readings can later be transferred to a PC using the supplied PC USB interface kit. Real-time meter-to-PC logging is also supported. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Safety Please read the safety and operational instructions before using this device. WARNING To avoid electrical shock or instrument damage, do not apply voltage exceeding the maximums specified. WARNING To avoid damage or burns, do not make temperature measurement in microwave ovens. WARNING Do not use the meter in any explosive atmosphere. CAUTION Repeated flexing can break the thermocouple leads. To prolong lead life, avoid sharp bends in the leads, especially near the connector. This symbol on the instrument indicates that the operator must refer to an explanation in this manual. Double insulation IR Safety Notes • Remove the battery if meter is to be stored for longer than 60 days. • Use extreme caution when the laser pointer beam is on • Do not point the beam toward anyone's eye or allow the beam to strike the eye from a reflective surface • Do not use the laser near explosive gases or in other potentially explosive areas 2 Model HD200 Version 2.0 December 2007 Description Meter Description 1. Thermocouple inputs 2. PC USB interface input 3. IR probe input jack 4. Up arrow button 5. SETUP & Display backlight button 6. Down arrow and Record button 7. Temperature units select button 8. MAX-MIN button 9. Display configuration button 10. LCD Display 11. ENTER button 12. Battery compartment & Tripod mount (rear) 13. Display HOLD button 14. Power button Note: Description of IR sensor contained in later section. Display Description 1. Thermocouple type (Icon flashes when the meter is recording) 2. IR temperature (display flashes when the meter recording) 3. Data Hold mode (readings are frozen on display) 4. Appears when meter is in the SETUP mode 5. Primary Display: T1, T2, T3 , T1-T2,T1-T3,or T2-T3 reading. 6. Secondary Display: MAX, MIN, AVG, offset,T1, T2 , or T3 reading. 7. Temperature unit of measure 8. Third display. Elapsed timer or T1, T2, T3 reading 9. Low battery icon 10. Timer 11. MAX, MIN, AVG display mode icons 3 Model HD200 Version 2.0 December 2007 Operation The Basics 1. Press to turn the thermometer on. Press and hold the turn the meter off. 2. Press MAX/MIN to record and step through the maximum, minimum, and average readings for the T1 and T2 inputs (does not apply for the T3 IR input). When active, the display shows the maximum, minimum, or average of the logged readings and the elapsed time. To exit the MIN/MAX/AVG mode press and hold the MAX/MIN button for 3 seconds. button for 3 seconds to 3. Press °C·°F·°K to switch between Celsius (°C), Fahrenheit (°F), and Kelvin (°K). 4. Press HOLD to freeze or unfreeze the displayed readings. 5. Press DIF/T1·T2·T3 to scroll through display combinations: T1, T2, T3 and T1-T2, T1T2, T2-T3 (differential temperature measurement) in the primary, secondary and third display. 6. Press the Setup/ backlight. 7. Press and hold the Setup/ button for 5 seconds to enter or exit the Setup mode. Press ▲ to scroll to a Setup option. (see "Changing Setup Options.") 8. Press REC/▼to start or stop recording. If in the Setup mode, use this button to scroll to the Setup option you want to change. Press REC/▼to decrease the displayed setting. 9. Press ENTER to enter a Setup option. Press ENTER again to store the displayed setting in memory. button to turn on the backlight. Press it again to turn off the Using the thermocouple (s) 1. Plug the thermocouple(s) into the T1or T2 input connector(s). 2. to turn on the thermometer. After 1 second the thermometer displays the Press reading. If no thermocouple is plugged into the selected input or the thermocouple is "open," the display shows "- - - -". Using the supplied IR (Infrared) Thermometer Probe Plug the output of the remote IR probe into the T3 (IR input) meter jack (see diagram), “T3 - - -” will appear on screen. If the IR probe is not connected, “T3 - - - -” will not appear. Press the external probe’s “SCAN” button to take and display a reading. Use the laser pointer to improve target aim. While the SCAN button is held down, the readings change as the user scans various surfaces. When the button is released the display is held for approx. 7 seconds and the meter then returns to normal operation. 4 Model HD200 Version 2.0 December 2007 IR Description 1. Laser Pointer 2. IR sensor 3. Lo Battery led 4. ON/Scan button 5. Cable IR (Infrared) Thermometer Measurement Considerations • The object under test should be larger than the spot (target) size calculated by the field of view diagram. • If the surface of the object under test is covered with frost, oil, grime, etc., clean before taking measurements. • If an object's surface is highly reflective, apply masking tape or flat black paint to the surface before measuring. • The meter may not make accurate measurements through transparent surfaces such as glass. • Steam, dust, smoke, etc. can obscure measurements. • The meter compensates for deviations in ambient temperature. It can, however, take up to 30 minutes for the meter to adjust to extremely wide ambient temperature changes. • 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. • IR measurements cannot be made through glass. IR (Infrared) Thermometer Field of View The meter’s field of view is 8:1. For example, if the meter is 16 inches from the target (spot), the diameter of the target must be at least 2 inches. Note that measurements should normally be made less than 2 feet from the target. The meter can measure from further distances but the measurement may be affected by external sources of light. In addition, the spot size may be so large that it encompasses surface areas not intended to be measured. 5 Model HD200 Version 2.0 December 2007 Setup Option Mode Entering and Changing a Setup Options 1. Press and hold the Setup button for 3 seconds to enter the Setup mode. “SETUP” will appear in the upper right-hand corner of the LCD 2. Press ▲ or ▼to scroll to the desired setup option 3. Press ENTER to begin editing the selected option. 4. Press ▲or ▼ to change to the desired setting. 5. Press ENTER to store the new setting in memory and step to the next option 6. Press and hold the Setup button for 3 seconds to exit the Setup mode Display Option Description T1 T1 Offset Adjust T! offset value T2 T2 Offset Adjust T2 offset value T3 T3 Offset Adjust T3 offset value SLP Sleep Mode ON (mode on) or OFF (sleep mode off) tiE Time setting Check the time or Set the time rAt Sample rate Set the datalogging sample interval CLR Clear Clear the datalogger memory Note: Setup is disabled in MIN MAX/AVG or REC mode. Offset (for T1, T2, or T3) The primary display shows the actual temperature plus the offset; the secondary display shows only the offset value. Individual offsets for T1, T2 and T3 can be stored for later recall. Auto Power Off mode (SLP) 1. The default mode is Sleep Mode ON (the meter will automatically shut off after 20 minutes of inactivity). 2. Press ▲ or ▼ to scroll to the “SLP” page. 3. Press ENTER to show the current setting (ON or OFF). 4. Press ▲ or ▼ to change the setting. Press ENTER to store the new setting in memory. On (sleep mode on) or 0FF (sleep mode off). Time Setting (tiE) 1. Display the time. The primary display shows the year. The secondary display shows the month and the day, the third display shows the hours and minutes. Press ENTER to exit the time setting option without making changes. 2. Set the time. The order is year--- month ----day---- hours--- minutes. Use °C·°F·°K to select a digit group. Use the ▲ or ▼ buttons to change the setting. Press ENTER to store the new setting in memory. Sample Rate (rAt) The third display shows the datalogger sample rate. The default sample rate is 1 second. The third display show “0 0 0 1”. The order is minutes/seconds. Press °C·°F·°K to toggle between minutes and seconds. The flashing digits indicate the digits ready to be edited. Press ▲ or ▼ to change the sample rate. Press ENTER to store the new setting in memory. Erase the Datalogger Memory (CLR) To clear the memory, enter the CLR setup mode, press ▲ or ▼ until the display shows the confirmation screen “SURE YES” and press ENTER to clear the memory. 6 Model HD200 Version 2.0 December 2007 Displaying Temperature units 1. Press °C·°F·°K to select the desired temperature units. 2. Touch the thermocouple(s) to the object under test. The temperature reading appears in the primary display. Notes: The display shows "- - - -" when a thermocouple is not connected. The display shows OL (overload) when the temperature being measured is outside the thermocouple or meter range. Holding the Displayed Readings 1. 2. 3. Press HOLD to freeze the readings on the display .The display shows “HOLD”. Press DIF/T1·T2·T3 to scroll through T1, T2, T3, T1-T2, T1-T3, or T2-T3 readings for the primary or secondary display. Press HOLD again to turn off the HOLD function. Viewing the MIN, MAX, and AVG Readings 1. Press MAX/MIN to step through the maximum (MAX), minimum (MIN), or the average (AVG) readings. The elapsed time since entering MIN MAX mode, or the time at which the minimum or maximum occurred appears on the display. 2. Press MAX/MIN button for 3 seconds to exit the MIN MAX mode. Note: Max/Min/Ave applies to the T1 and T2 inputs only. Datalogging 1. 2. Set the desired sampling interval as described in the Setup Mode. Press the REC/▼button to start recording. The “TYPE K” and “IR TEMP” indicators will flash on at the set sample rate when the meter is datalogging. 3. Press the REC/▼button to stop recording. The supplied software allows the user to transfer stored data to a PC. Refer to the separate software instructions on the supplied software disk for details. Using the Offset Function to Adjust for Probe Errors Use the offset option in Setup Mode to adjust the thermometer’s readings to compensate for errors in a specific thermocouple or IR temperature. The allowable adjustment range is 0 0 ± 5.0 C or ± 9.0 F. 1. Plug the thermocouple into the input connector. 2. Place the thermocouple in a known, stable temperature environment such as an ice bath or dry well calibrator. 3. Allow the readings to stabilize. 4. In Setup change the offset until the primary reading matches the calibration temperature. Battery Replacement 1. Turn off the thermometer. 2. Slide off the meter’s rear panel. 3. Replace the battery. 4. Secure the rear panel. 7 Model HD200 Version 2.0 December 2007 USB PC Software and Interface The HD200 is equipped with a communication jack on its upper left side. 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. 8 Model HD200 Version 2.0 December 2007 Specifications General Specifications Display Three line display multi-function LCD IR Field of View 8:1 distance to spot ratio Datalogger memory Over 18000 readings per input channel Memory Sample Rate Adjustable, 1per second to 1 per 59min 59sec Over range indication "-------" appears on the LCD Open input indication "-------" appears on the LCD Low battery indication Battery symbol appears on the LCD Power supply 9V Battery Operating Temperature 32 to 104 F (0 to 40 C) Operating Humidity 10 to 80% RH Storage Temperature 14 to 140 F (-10 to 60 C) o o o o Storage Humidity 10 to 75% RH Dimensions 7.9 x 2.9 x 1.9" (201 x 75 x 50mm) Weight Approx. 9.8oz. (280g) with battery Function Range T1, T2 (Type K) -148°F to 2501°F -100°C to 1372°C -328°F to -148°F -200°C to -100°C T3 (IR) -22°F to 1022°F -30°C to 550°C Resolution Accuracy 0 <1000°; 0.1°F/C >1000°; 1°F/C 1°F/C 0 ± (0.15%rgd+1 C/1.8 F) 0 0 ± (0. 5%rgd+2 C/3.6 F) 0 0 ± (2%rgd+2 C/3.6 F) 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 expressed or implied. 9 Model HD200 Version 2.0 December 2007 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. Support line (781) 890-7440 Technical Support: Extension 200; E-mail: [email protected] Repair & Returns: Extension 210; E-mail: [email protected] Product specifications subject to change without notice For the latest version of this User Guide, Software updates, and other up-to-the-minute product information, visit our website: www.extech.com Extech Instruments Corporation, 285 Bear Hill Road, Waltham, MA 02451 Copyright © 2007 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form. 10 Model HD200 Version 2.0 December 2007