445582

User's Guide Hygro-Thermometer Pen Model 445580 and 445582 (kit) 1 234 7 9 5 Meter Description 1. Humidity/Temperature Sensor 2. POWER ON/OFF button 3. Data HOLD button 4. MIN/MAX Memory button 5. Calibration and units select button 6 8 Introduction Congratulations on your purchase of the Extech Hygro-Thermometer Pen Model 445580. The 445580 can measure Relative Humidity from 10% to 90% and Temperature from 14 o o to 122 F (0 to 50 C). Advanced features include MIN/MAX Memory, Push-button Calibration, Display Hold, and Automatic Power Off. The Model 445582 kit version includes Relative Humidity Calibration bottles and hard shell carrying case in addition to the Hygro-Thermometer Pen. Specifications Relative Humidity Sensor Temperature Range Relative Humidity Range Resolution Accuracy (32 to 122 F & 0 to 50 C) Power Response time Dimensions o o High Precision thin-film capacitance type 14 to 122 F (-10 to 50 C) 10 to 90% Relative Humidity Temperature: 0.1 ; Relative Humidity: 0.1% Temperature: ±1.8 F (±1.0 C); RH: ±5% 2032 button battery (150 hour battery life) 120 seconds 6.9 x 1.6 x 0.6" (175 x 42 x 16mm) o o o o o Operation Press the ON/OFF button to turn the meter ON. After a 5 second initialization, the Relative Humidity reading will appear in the upper display and the Temperature reading will appear in the lower display. Allow time for measurement readings to stabilize when moving the meter from one area to another. Displayed Error Messages An error message will appear on the display if the meter fails an internal diagnostic test. E2: Calibration error. Recalibration is necessary. E5: Relative Humidity sensor failure. Repair/replacement is necessary. Data Hold 1. Press the HOLD button to freeze the displayed reading. The display icon ‘HLD’ and the held reading will appear on the display. 2. To return the meter to the normal operation mode, press and hold the RESET button until the ‘HLD’ icon switches off. MIN-MAX Memory 1. Press and hold the MIN/MAX button until ‘MIN’ appears in the display. The reading will then represent the lowest humidity and temperature measurements recorded since the meter was turned on or last reset. 2. Press and hold the MIN/MAX button until the ‘MAX’ appears on the display. The reading will then represent the highest humidity and temperature measurements recorded since the meter was turned on or last reset. 3. Press the MIN/MAX key again to return to normal operation. 4. To reset (clear) the MIN/MAX memory, press and hold the RESET button until ‘88.8’ appears in the display. Automatic Power OFF (Sleep mode) The meter will automatically shut off after a period of approximately 20 minutes. To defeat this mode, press and hold the MIN/MAX button while turning the meter on. Release the ON/OFF button after the display initializes. 'n' will appear on the display indicating that the non-sleep mode has been activated. Note that Sleep mode will be re-activated when the meter is turned off. Selecting Temperature Units (C or F) Caution: Follow this procedure carefully. Accidentally pressing the RESET button during this procedure will compromise the meter's calibration. 1. Ensure that the meter is off. 2. Press and Hold the recessed F/C button (use a paper clip or similar object) and then press the ON/OFF button. The unit will power up and the display will flash once. When only the ‘F’ and ‘C’ icons appear together in the display, release the F/C button. 3. The display will then show either ‘C’ or ‘F’. Press the MIN/MAX key to select degrees ‘C’ or ‘F’. The display will reflect the change. 4. Press the recessed F/C button to store the selection. ‘S’ will appear in the display. 5. The display will then show ‘%MIN’. Turn off the meter to complete the operation. 2 Model 445580 & 445582 Version 3.3 July 2004 Calibration and Verification Procedures The following procedures require 33% & 75% RH references available through Extech. Verification (Checking the 33% or 75% RH Calibration) Skip the verification and go directly to the Cal procedure below if it has already been determined that the meter calibration is compromised or if the E2 display appears. 1. Insert meter’s sensor into the 33% or 75% salt reference bottle 2. Place the meter and bottle inside the meter case 3. Wait 40 minutes and then check if the reading is within the published specifications Relative Humidity Calibration (33% and 75%) For best results, store the meter and salt bottles in the closed case during the 40-minute stabilization process. The 33% and the 75% calibrations must both be performed. 1. 2. Start with the meter OFF. Insert the meter’s sensor into the 33% salt reference bottle. Put the meter and the bottle in the case and close the case. Allow the meter to stabilize for 40 minutes. Note that for diagnostic purposes the stabilization process can be shortened to 5 minutes. Open the case but leave the pen in the bottle. While holding down the recessed CAL button with a paper clip, press and release the ON-OFF button. Continue to hold down the CAL button, the unit will turn ON and the display will flash once. When only the F and C icons appear, release the CAL button. After releasing the CAL button, the display will indicate either F or C (depending on which one was selected). Press and hold the RESET button for 3 seconds. %MIN will appear in the display after the RESET button is released. Press and release the CAL button. ‘S’ will briefly display followed by %MAX display. Turn the meter OFF. Insert the meter sensor into the 75% salt reference bottle. Put the meter and the bottle in the case and close the case. Wait 40 minutes. Open the case but leave the pen in the bottle. While holding down the recessed CAL button with a paper clip, press and release the ON-OFF button. Continue to hold down the CAL button, the unit will turn ON and the display will flash once. When only the F and C icons appear, release the CAL button. After releasing the CAL button, the display will indicate either F or C. 3. 4. 5. 6. 7. 8. 9. 10. Press and hold the RESET button for 3 seconds. %MIN will appear in the display after the RESET button is released. 11. Press and hold the RESET button again for 3 seconds. %MAX will appear after the key is released. 12. Ensure that %MAX is displayed and then press CAL. ‘S’ will appear briefly and the meter will return to normal operation. Turn the power OFF; calibration is complete. 3 Model 445580 & 445582 Version 3.3 July 2004 Battery Replacement Use a coin to remove the battery compartment cover on the rear of the meter. Replace the 2032 lithium battery; install the new battery face up (+) in the battery compartment. Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies on 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 at www.extech.com (click on ‘Contact Extech’ and go to ‘Service Department’ to request an RA number). 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. Repair Services Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the Customer Service 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: support@extech.com Repair & 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 Copyright © 2004 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form. 4 Model 445580 & 445582 Version 3.3 July 2004