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1. 140 F at lt 70 R H Storage Environment 20 to 60 C 4 F to 140 F 0 to 80 R H with battery removed from meter Battery 1 5Vx2pcs AAA size Battery Life 260 hours typical with alkaline battery Low battery indication The C is displayed when the battery voltage drops below the operating level Dimensions 25 x 51 x 133mm approx Weight 120gms including battery approx Accessories 1 5V AAA battery installed x 2 Wristlet x 1 Protection cap x 1 OPERATIONS gt There are 3 operation modes namely Measurement Mode Set Mode and Hold Mode 1 Turning on and off the meter When power is off a short push on key turns on the meter and enter Measurement Mode Press and hold key for 2 seconds turns the power off Right after power on all the indicators on the LCD display lights up for one second 2 Measurement Mode When power is on the meter start measuring and refresh every second Changing among temperatures Press the A key the meter can cycle through Dry bulb temperature no indicator gt Dew Point with indicator td gt Wet bulb temperature with indicator WB reading on lower display Backlight In measurement mode a short push on key turns on the backlight for dark environment it goes off automatically after 15 seconds if without further operation 3 Set Mode In set mode user can set C F unit and turn on off APO function APO Aut
2. MECO Certificate of Calibration We hereby certify that this product has been calibrated and found to be in accordance with the applicable SPECIFICATIONS and STANDARDS Accuracies of the standard equipment used in this calibration are traceable to the National Standards MECO METERS PVT LTD Plot No EL 60 MIDC Electronic Zone TTC Industrial Area Mahape Navi Mumbai 400710 INDIA Tel 0091 22 27673311 16 27673300 Board Fax 0091 22 27673310 27673330 E mail sales mecoinst com Web www mecoinst com SR NO THERMO CHECKED BY HYGROMETER DATE Uo Tt MODEL 920 MODEL NO USER MANUAL Contents INTRODUCTION _ o o CODOS eeraa irer EEO EE E a 2 This instrument is a portable gazy Use and compact digital l Thermo Hygrometer designed for simple one hand Safety Information E E re ee eer A roe rer rere 3 operation It uses thermistor as temperature sensor and a Specifications ccccececsesesssssccecsececcceececsecersevscsavsceecsevsesares 5 digitalized humidity sensor as the hygrometer sensor with excellent long term stability ST ONS perce testers otters sone aiaee arenai 5 _ l Humidity measurement is shown on upper display and 1 FUMING on and Ol IMCTSE arecuiutsssacsamirienivamaninieiecesanstn 5 temperature in lower display 2 Measurement Mode oz sescseneisverecsss icacedtactanaectecvectvucsacess 5 OEE MOIE srein 6 SAFETY INFORMATION 4 Hold Mode cece oc tee eseceecesnceve ceed renutehecetataxe cco wta
3. and the reading will not be updated with new measurement Push Mode key each time the display changes in following sequence 4 1 Last Measurement with indicator HOLD 4 2 Maximum value recorded with indicator HOLD MAX 4 3 Minimum value recorded with indicator HOLD MIN 4 4 Maximum Minimum value recorded with indicator HOLD MAX MIN 4 5 Average of values recorded with indicator HOLD AVG 4 6 Exit the Hold Mode and return to Measure ment Mode To clear the recorded values In Hold Mode and during viewing MAX MIN MAX MIN or AVG press and hold Mode key for 2 seconds to clear the recorded data and return to measurement mode 6 7 920 28 09 2012 MAINTENANCE Installing and Replacing Battery Battery Battery Cover Power is supplied by 2pcs 1 5V AAA SIZE 2 The appears in the display when battery replacement is needed 3 Push the Battery Cover and lift it in the direction as shown in the figure 4 Remove the batteries from battery compartment 5 Replace with 2 new AAA batteries with polarity as indicated on the bottom of Battery Compartment 6 Place the Battery Cover Cleaning Periodically wipe the case with a damp cloth and detergent do not use abrasives or solvents 920 28 09 2012 MECO Certificate of Calibration We hereby certify that this product has been calibrated and found to be in accordance with the applicable SPECIFICATIONS and STANDARDS Ac
4. curacies of the standard equipment used in this calibration are traceable to the National Standards MECO METERS PVT LTD Plot No EL 60 MIDC Electronic Zone TTC Industrial Area Mahape Navi Mumbai 400710 INDIA Tel 0091 22 27673311 16 27673300 Board Fax 0091 22 27673310 27673330 E mail sales mecoinst com Web www mecoinst com SR NO HYGRO CHECKED BY ANEMOMETER Te s651 es DATE HY GRO ANEMOMETER MODEL n 961 MODEL NO USER MANUAL Contents INTRODUCTION CODOS eeraa irer EEO EE cenode acne a 2 This instrument vane type air speed meter When air flows l through the meter turns the vane air speed is measured Safety Information E E T E T E E E E E E A E E 3 The measurement air speed is shown at upper display Specifications cece scare cteeccnscaescice cxsusavaconraetcneicetsiatnventennancnaesecst 5 while environment temperature is shown at lower display Operations i ercctenctrccee vigunaitnnsoeotnesicbeannotnosotedlouadnnnoennetocuedacautnine 5 SAFETY INFORMATION It is recommended that you read the safety and operation 1 Turning on and off meter srcessuscasaccavxercensiaataanvatabecanced s 5 i i instructions before using the hygro anemometer 2 Measurement Mode oz sescseneisverecsss icacedtactanaectecvectvucsacess 5 L Or eih moii i vf OEE MOIE srein 6 a cap ie AE ces A A its intended purpose and within the parameters 4 Hold Mode ee ee ee ee eee re ee cee een 7 specified Do not use force Maintenance
5. f C indicator after 15 seconds if without further operation appeared the setting value can works till power off but did 3 Set Mode not save to meter In set mode user can turn on off APO function select unit 4 MAXMIN Mode of temperature and select unit of velocity and select humidity In Measurement Mode short push Mode key to enter or wet bulb temperature WB measurement APO Auto MAX MIN MODE Power Off when APO is ON the meter power off Push Mode key each time the display changes in following automatically if no operation in 10 minutes sequence When power is off press and hold key for 2 seconds 4 1 Last Measurement with indicator HOLD premier Sel Mode l 4 2 Maximum value recorded with indicator MAX 4 moe oe NIOR Koy an MTOE Aa 4 3 Minimum value recorded with indicator MIN position in following sequence indicator of settable position blinks 4 4 Maximum Minimum value recorded with indicator MAX 3 1 Unit of velocity Short push on A key scroll unit of velocity ja m s Km h ft m mph kts Beau Push Mode key to 4 5 Average of values recorded with indicator AVG select the unit of velocity and enter selection unit of 4 6 Exitthe MAX MIN MODE and return to Measurement Mode temperature To clear the recorded values 3 2 Unit of tempera short oak an A key scroll units of In MAX MIN MODE and during viewing MAX MIN MAX temperature C F Push Mode key to select the unit of MIN o
6. o Power Off when APO is ON the meter power off automatically if no operation in 10 minutes When power is off press and hold key for 2 seconds to enter Set Mode 3 1 C F Unit short push on A key switches between C and F 3 2 Push MODE key to save the setting exit C F setting mode and enter APO setting mode 4 5 3 3 APO ON OFF short push on A key switches between SPECIAL CONSIDERATIONS ON and OFF Before a reliable measurement can be made the measuring 3 4 Push MODE key to save the setting exit APO setting hygrometer and medium to be measured must be in mode and enter measuring mode temperature and humidity equilibrium Note Temperature measurement errors To turn off power in Set Mode abandon the current setting Due to too short measurement time sunshine during the and previous settings remain unchanged If L indicator measurement heating cold outer walls air draft e g fans appeared the setting value can works till power off but did radiating hand and or body heat etc not save to meter Humidity measurement errors 4 Hold Mode Due to steam water splashes dripping water or In Measurement Mode short push Mode key to enter condensation not water condensate on the sensor etc Hold Mode with indicator HOLD shows at center of LCD However repeatability and long term stability are not Right after entering this mode shown in the LCD is the last impaired by this measurement
7. r AVG press and hold Mode key for 2 seconds to temperature and enter selection of humidity td or WB clear the recorded data and return to measurement mode measurement 3 3 Selection of humidity td or WB measurement short push on A key to change the measurement through humidity td and WB Push Mode key to select and enter APO ON OFF setting 3 4 APO ON OFF short push on A key switches between ON and OFF Push Mode key to select and exit Set Mode and Entering Measurement Mode Please refer to the section of Measurement Mode 6 7 961 28 09 2012 MAINTENANCE Installing and Replacing Battery Battery Battery Cover Lie yeh kiita TART 1 vite GA Lat aa l r A N k m as uh AN p3 yon g y Yi y AE iT i A 4 LAN un 1 Power is supplied by 2pcs 1 5V AAA SIZE 2 The L_wl appears in the display when battery replacement is needed 3 Push the Battery Cover and lift it in the direction as shown in the figure 4 Remove the batteries from battery compartment 5 Replace with 2 new AAA batteries with polarity as indicated on the bottom of Battery Compartment 6 Place the Battery Cover Cleaning Periodically wipe the case with a damp cloth and detergent do not use abrasives or solvents 8 961 28 09 2012
8. sik rms ayava refan niapi arm acu Aaa r AAE rE Eaa vee ahaa fare ear iari neiaa 8 2 Never store the product together with solvents acids Installing and Replacing Battery cccccssssceeeesesseeeeeeeeesees 8 or other aggressive substances CNG AINA 253 sat oan E EENET pence T EE E eernieiee ees 8 3 Don t keep in place with high Temp or high humidity 961 28 09 2012 SPECIFICATIONS WIND VELOCITY Range 0 4 to 20 m s 80 to 4000ft m Accuracy 0 2m s 2 of reading 40ft m 2 of reading Resolution 0 1m s 1ft m RELATIVE HUMIDITY Sensor Digital Capacitive humidity sensor Range 0 to 100 RH Accuracy 2 5 at 25 C 77 F 10 to 90 RH 5 at 25 C 77 F 0 to 10 RH 90 to 100 RH Sensor Response Time for 90 of Total Range 60sec typical Storage temperature 20 C to 60 C 4 F to 140 F O to 80 R H with battery removed from meter Battery 1 5V x 2pcs AAA size Battery Life 50 hours typical with alkaline battery Low battery indication The C is displayed when the battery voltage drops below the operating level Dimensions 25 x 51 x 133mm approx Weight 120gms including battery approx Accessories 1 5V AAA battery installed x 2 Wristlet x 1 Protection cap x 1 OPERATIONS There are 3 operation modes namely Measurement Mode Set Mode and MAX MIN Mode 1 Turning on and off the meter seta leh Sa of 10 to 90 to 10 When power is off a short p
9. te ar ec 7 itis recommended thal wou read theeaiciy andoveraton MIAIFTOTIAING S sosisini ra EEE anoa 8 instructions before using the thermohygrometer Installing and Replacing Battery cccccssssceeeesesseeeeeeeeesees 8 1 When not use for long time remove battery E ela gio ene ere ee eee eee E E een E ee ee eee 8 2 Don t keep in place with high Temp or high humidity CAUTION Do not immerse the hygrometer sensor head into liquids since this causes permanent damage to the sensor The meter when not in use please use protective cover to extend sensors life 920 28 09 2012 SPECIFICATIONS HUMIDITY MEASURING Sensor Digital Capacitive humidity sensor Range 0 to 100 RH Accuracy 2 5 at 23 5 C 73 4 9 F 10 to 90 RH 5 at 23 5 C 73 4 9 F 0 to 10 RH 90 to 100 RH Sensor Response Time for 90 of Total Range 60sec typical Sensor Hysteresis excursion of 10 to 90 to 10 RH 1 RH typical TEMPERATURE MEASURING Sensor Thermistor temperature sensor Range 20 C to 60 C 4 F to 140 F Accuracy 0 5 C for 0 C to 45 C at 23 C 5 C 1 0 C for 20 C to 0 C 45 C to 60 C at 23 C 5 C 1 0 F for 32 F to 113 F at 73 4 F 9 F 2 0 F for 4 F to 32 F 113 F to 140 F at 73 4 F 9 F Resolution 0 1 C F Measuring Rate 1 measurement second Temperature Coefficient 10 per C out of 23 5 C 73 4 9 F Operation Environment 20 to 60 C 4 F to
10. ush on C key turns on the 1 Dpical meter and enter Measurement Mode When power is on AIR TEMPERATURE press and hold b key for 2 seconds turns the power off Range 20 C to 60 C 4 F to 140 F Right after power on all the indicators on the LCD display Accuracy 0 5 C for 0 C to 45 C lights up for one second 1 0 C for 20 C to 0 C 45 C to 60 C 2 Measurement Mode mod for 2T to Uaia i After power on face the back side where battery cover 2 0 F for 4 F to 32 F 113 F to 140 F is of the meter to the air flow the measurement reading Resolution 0 1 C 0 1 F refreshed every second Accuracy Stated accuracy at 18 C to 28 C 64 F to Push the A key scroll the reading through air speed 82 F lt 75 R H relative humidity and Wind Chill Temperature WCT Temperature Coefficient 0 1 times the applicable Note accuracy specification per C out of 18 C to 28 C 64 F When power is turn off the display setting either air speed to 82 F relative humidity or WCT at that moment will be saved and Measurement rate 1 times second remains unchanged when the meter is turned on next time Operating environment 0 C to 50 C 82 F to 122 F at lt 70 R H 4 5 Backlight Note In measurement mode a short push on key turns on To turn off power in Set Mode abandon the current setting the backlight for dark environment it goes off automatically and previous settings remain unchanged I

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