User`s Manual Printing Hygro-Thermometer Model 445365
Contents
1. 4 Close the paper compartment and use the FEED button to advance the paper Selecting C F units of measure Press the C F key to select the desired units of measure The display will reflect the selection Relative Humidity Temperature and Dew Point Displays Relative Humidity RH The large digits at the center of the LCD represent the humidity sensed by the T1 Probe unless the DEW PT button is pressed Dew Point When the DEW PT button is pressed the large digits at the center of the LCD display the dew point temperature sensed by the T1 Probe Temperature T1 The left lower sub display represents the temperature measured by the Temp RH probe Temperature T2 The lower right sub display represents the temperature measured by the Type K thermocouple Open Input If the T1 or T2 input jacks are not used all dashes will appear on their respective display areas on the LCD Over Range For out of range inputs to the meter OL will display in the appropriate field 4 445365 V1 1 4 01 Programming the Meter Press the MENU button momentarily to enter the programming mode The underlined parameters listed below will appear one by one with each press of the MENU button Digits or words in a field will flash when ready to be edited Use the Right Left arrow keys to move through the various programming fields if there are more than one for a given parameter Use the Up Down arrow keys to change a particular parame2. Press the MENU key to access the PRINT STOP TIME parameter Use the Up Down Right Left arrow keys as previously described to set the Hour and Minute 6 Press the MENU key to exit the programming mode the left corner of the LCD will show the clock icon indicating that interval printing is active Note that the STOP time cannot be earlier than the START Printing Modes For a one time printout of the current status of the meter s LCD display press the PRINT button momentarily The printer icon will appear on the left side of the LCD and four lines with the following format will print on the thermo paper Line 1 Date and Time of print Line 2 Relative Humidity or Dew Point Temperature measurement Line 3 Temperature of T1 coiled RH Temp probe input Line 4 Temperature of T2 Type K thermocouple input For automatic printing set the PRINT FUNCTION to ON as described in the above section Setting the Automatic Print Interval The meter will automatically print at the interval programmed by the user as previously described The interval time will print above the data on the first of the automatic printouts To disable automatic printing set the PRINT FUNCTION parameter to OFF in the programming mode 5 445365 V1 1 4 01 The FEED Button Press the FEED button to advance the printer paper one line The FEED button is useful for advancing the paper when installing a new paper roll Setting the Calendar Clock 1 Press the MENU key
3. User s Manual EXT INSTRUMENTS Printing Hygro Thermometer Model 445365 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 for authorization 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 Introduction Congratulations on your purchase of the Extech 445365 Printing Hygro Thermometer Temperature and humidity or dew point readings can be printed automatically at user defined
4. five times in succession The last two digits of the Year field will be flashing on the LCD Use the Up Down arrow keys to set the current year 2 Press the Right arrow key to move through the current Month Day Hours and Minutes fields using the Up Down arrow keys to change each setting 3 Press the MENU key again when complete to return to normal meter operation MAX MIN Function To view the lowest MIN and highest MAX readings since the meter was powered 1 Press the MAX MIN button The MAX icon will appear along with the highest readings 2 Press the MAX MIN button again to view the lowest readings along with the MIN icon Press the MAX MIN button again to exit the MIN MAX mode 3 To clear the MIN MAX meter memory turn the meter OFF and then back ON again using the green power ON OFF button Data Hold To freeze the LCD display momentarily press the HOLD button The H hold icon will appear on the LCD top Press the HOLD button again to return to normal operation the H hold icon will disappear Battery Replacement When the BT low battery icon appears on the left side of the LCD it is nearing the time when the six AA batteries must be replaced Several hours of use can still be obtained from the meter after the low battery indication To replace the batteries 1 Remove the screw at the center of the instrument s back and remove the battery compartment cover 2 Replace the six AA batteries observing pro
5. intervals Careful use of this meter will provide years of reliable service Specifications General Specifications Display Measurements Printer Printing paper Printing Interval Sampling rate Over range indication Open input indication Input protection Low battery indication Power supply Battery Life Operating Temperature Operating Humidity Storage Temperature Dimensions Weight Accessories Range Specifications Triple line multi function LCD Temperature T1 and T2 and Relative Humidity or Dew Point Thermo printer 16 characters per line 1 5 38mm width plain thermo paper 6 seconds up to 60 minutes user selectable 1 Measurement per second approx OL appears on the LCD All dashes display 60V DC 24V AC rms Low battery icon BT appears on the LCD Six 1 5V AA Batteries optional AC adapter 9V 500mA min Approx 30 hours with printing interval set to 60 mins Approx 60 hours with printer OFF 32 to 122 F 0 to 50 C lt 95 RH 14 to 140 F 10 to 60 C 7 6 x 2 9 x 1 3 193 x 74 x 37mm Approx 15 2 oz 430g with batteries and paper Carrying case batteries two rolls of thermo paper temperature RH probe T1 and type K sensor T2 Function Range Resolution Accuracy RH 10 to 95 0 1 3 RH 30 to 95 Dew Point 47 to 137 F 44 to 58 C 0 1 1 5 F 0 8 C Temperature 4 to 140 F 20 to 60 C 0 1 1 5 F 0 8 C Probe T1 T
6. per polarity 3 Replace the battery compartment cover and secure the screw Calibration and Repair Services Extech offers complete repair and calibration services for all of the products we sell For periodic calibration NIST certification or repair of any Extech product call customer service for details on services available Extech recommends that calibration be performed on an annual basis to insure calibration integrity T Tech Support Hotlines 781 890 7440 ext 200 extech extech com www extech com Copyright 2001 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 6 445365 V1 1 4 01
7. pes of input sensors T1 left side accepts the supplied Temperature RH probe with the coiled cord and the USB style connector T2 right side accepts a Type K thermocouple via a standard spade lug thermocouple connector sub miniature type with one spade lug wider than the other 2 Plug the sensor s into the meter s T1 and or T2 input jack s Powering the meter 1 This meter operates on six 1 5V AA batteries rear battery compartment or by the optional AC adapter 9V 500mA min that connects to the meter s lower left side 2 Press the green power button to turn ON the meter after the batteries or AC adapter have been installed The meter will perform a short self test during which the date and the time will briefly appear on the LCD display 3 Ifa probe is not inserted to the meter or the probe is malfunctioning all dashes will appear on the Main T1 and or T2 LCD display areas Connect a probe if one is not connected or try another probe if it appears that the connected probe is malfunctioning Installing Thermo Print Paper 1 Turn the meter OFF with the green power button and remove all sensors from the input jacks at the top of the meter 2 Open the printer paper compartment using a small coin or screwdriver in the slot at the top of the meter 3 Pull open the compartment and install the paper as shown at right so that it feeds through the slot on the front of the meter above the clear plastic feeder
8. ter that is flashing PRINT FUNCTION ON or OFF Enables Disables automatic interval printing PRINTING INTERVAL Two fields to program Minutes amp Seconds PRINT START TIME Two fields to program Hours amp Minutes PRINT STOP TIME Two fields to program Hours amp Minutes CALENDAR Five fields to program Current Year last two digits Month two digits Day 1 to 31 Hour 1 to 24 and Minute 1 to 59 These parameters are explained in detail in the next sections Press the MENU button again to return meter to normal operation Setting the Automatic Print Interval 1 Press the MENU button momentarily to enter the programming mode 2 Set the PRINT FUNCTION parameter to ON using the Up Down arrow keys 3 Press the MENU key to move to the next parameter PRINTING INTERVAL Set the amount of time you wish to pass between automatic printouts using the Up Down arrow keys Use the Right Left arrow keys to toggle between minutes and seconds The minimum interval time is 00 06 6 seconds and the maximum is 59 59 59 minutes 59 seconds 4 Press the MENU key to move to the next parameter PRINTING START TIME Set the Hour and Minute when printing will begin The range for START and STOP times is 00 00 to 23 59 hours and minutes Use the Up Down Right Left arrow keys as previously described Note Print START and STOP times represent a window of time where automatic printing will occur at the intervals programmed above 5
9. ype k T2 Temperature 328 to 58 F 200 to 50 C 58 to 1000 F 50 to 500 C 1000 to 2431 F 500 to 1333 C 0 1 lt 999 0 2 rdg 3 F 1 8 C 1 gt 999 0 1 rdg 1 6 F 0 8 C 0 2 rdg 3 F 1 8 C Temperature Coefficient 0 1 times the applicable accuracy specification per C from 0 to 18 C and 28 to 50 C 32 to 64 F and 82 to 122 F 2 445365 V1 1 4 01 Meter Description O oO NO a FON LCD display Keypad Calibration potentiometers 2 T1 Temp RH probe input Thermo print paper Battery compartment rear Temp RH Probe AC Adapter input jack T2 Type K thermocouple input jack Display Description oC ON oO a PF Db Dew Point is displayed Low Battery Negative temperature sign Meter is printing Interval printing START time Interval printing STOP time Calendar time is displayed Interval printing time displayed T1 measurement field 10 11 12 13 14 15 16 17 18 Decimal point Temperature units Humidity unit of measure MIN measurement display MAX measurement display Data Hold mode active Humidity or Dew Pt display T2 measurement field Interval printing is active Tl m hai hi 445365 V1 1 4 01 Meter Operation Connecting the sensors 1 This meter accepts two ty
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