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User`s Manual - John Morris Scientific
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1. CHIVES The WeatherTracker features two archives that allow you to look at historical data for that location The archives are regularly updated whenever the WeatherTracker is actively collecting data The ar chives are accessed by pressing the Current Archive key see pg 5 Daily Archive The Daily Archive retains the last 30 days of data If the battery power runs low the WeatherTracker will stop measuring and archiv ing data until the battery is replaced See Keypad Operation p 4 for information on accessing the archive information After using the arrow key to select a certain day from the Daily Ar chive the WeatherTracker will then cycle through all the information stored for that day This will include a screen with the high and low temperatures for that day any active degree day counters and the aver age readings for any sensors connected to the device If a currently active Degree Day Counter was not active on that day the screen will say No Data Monthly Archive The Monthly Archive retains 12 months of data When a month is se lected the WeatherTracker will then cycle through all the information stored for that month This will include a screen with high and low temperatures for the month degree day data and the cumulative rain fall if applicable for that month If a currently active Degree Day Counter was not active at the end of a month the screen will say No Data for that month Note If an ac
2. WEATHERTRACKER CONTENTS MODEL S General Overview 300 310 360 AND 365 Specifications Station Installation Archives Meter Operation gt 1 Keypad Operation External Temperature Sensor i Growing Degree Days 2 2 3 3 4 5 6 6 7 ee ii Weather fi eker Warranty F a me This manual will familiarize you with the features and operation of your new WeatherTracker Please read this manual thoroughly before using your instrument For customer support or to place an order call Spectrum Technologies Inc 800 248 8873 or 815 436 4440 between 7 30 am and 5 30 p m CST FAX at 815 436 4460 Sp e C tr u m E Mail at info specmeters com Spectrum Technologies Inc Technologies Inc 23839 W Andrew Rd Plainfield IL 60544 GENERAL OVERVIEW Thank you for purchasing a WeatherTracker All Weather Tracker models allow you to conveniently monitor air temperature Your model may also have the ability to measure one additional sensor Current conditions and historical data are easily viewed on the sta tion s LCD screen The internal electronics calculate Growing Degree Days GDD for up to three degree day counters For example one counter can be acti vated at planting while another can track the development of insects The station also calculates Chill Hours which is the total amount of hours during which temperatures have been below a specified low temperature The arrow keys
3. allow you to scroll through the sensor readings Degree Day Chill Hour calculations as well as set your tem perature ranges SPECIFICATIONS The air temperature sensor has a measurement range of 4 to 158 F 20 to 70 C and an accuracy of 1 F 0 7 C The ranges and accu racies for the applicable external sensors are listed in the following ta ble Model External Measurement Accuracy Sensors Range Cae s eee e N A 22 to 212 F 30 to 100 C maximum of 2 per hour 22 to 212 F 30 to 100 C Temperature maximum of 2 per hour Rainfall STATION INSTALLATION The WeatherTracker has the versatility to be located in any micro climate for recording weather data Hardware is included for attaching it to a 1 to 14 outside diameter mast pipe Use a 5 10 length of conduit or pipe as the mast mount When purchasing and or cutting the mast to size plan on placing 1 2 of the mast into the ground It can also be mounted to a wooden post with the screws that are provided The radiation shield protects the tem perature sensor from solar radiation and other sources of reflected heat If other sensors are included secure the sensor wires to the mast just below the display module with a plastic tie This will make the wires less vulnerable to being accidentally severed during the season Figure 1 Weather Tracker mounted on 1 conduit AR
4. key again to enter a pa rameter update screen Once in a parameter update screen pressing the Set key will allow you to scroll through the different components of that parameter The component that is modifiable will display s At this point use the arrow keys to adjust that component After the last component has been set the LCD screen will return to the Current Conditions screen Press the Set key again to modify more parame ters Select Parameter To Be Set Tt Parameter option screen KEYPAD OPERATION CONT Parameter Update Screens TIME amp DATE 09 22 11 45AM Press SET Press SET Successively pressing the Set key will allow you to set the month day year hour and minute DISPLAY UNITS Allows you to select whether Press SET temperature is displayed in F or C If C is selected rainfall will be displayed in mm DEG DAY COUNT 1 Counter Disabled Press SET gt Base Upper 86 Allows you to select the base and upper temperatures used in the De gree Day calculations as well as configure a Degree Day counter A Degree Day counter will display one of two modes Enabled or Dis abled When a Degree Day counter is enabled it is actively comput ing and summing degree days and adding to the Daily and Monthly archives Ifthe Set key is pressed to make this parameter modifiable see description of Set key on p 4 the user has two options Disabled or StartNow The Disabled option will turn off
5. n displays the current values being read by the sensors Model 375 v 1 5 Degree Day Initial information screen Air Temp 74 F Soil Temp 74 F Current Conditions HI 74 F 12 00 AM LO 66 F 01 58 PM DD 1 50 86 16 Since 07 03 2125 Daily High and Low Values First Degree Day Value DD 2 50 86 16 Since 0 8 06 1145 Second Degree Day Value DD 3 52 78 11 Since 09 12 925 Third Degree Day Value 09 08 02 07 09PM Time Date BATTERY AT 90 Battery Level KEYPAD OPERATION CONT After the display is activated pressing the Current Current Archive key once will put the LCD y p into the Daily Archive mode Press the ar row down key to select the day for which you wish to view archival data Press the Cur rent Archive key again to enter Monthly Archive mode Press the arrow down key to select the month for which you wish to view archi val data The arrow buttons are then used to review the last 30 days of daily history or the last 12 months of monthly history Pressing the Current Archive key again will allow you to see the Current Values see p 4 Pressing the Set key will bring up the Parameter Set Option Screen which will allow you to scroll through all parameter options and change any of the station s settings These include time date display units and degree day and chill hour temperature ranges Use the arrow keys to scroll to the parameter of interest and press the Set
6. roducts that prove to be defective This warranty is void if the product has been damaged by customer error or negligence or if there has been an unauthorized modification Returning Products to Spectrum Before returning a failed unit you must obtain a Returned Goods Authorization RGA number from Spectrum You must ship the product s properly packaged against further damage back to Spectrum at your expense with the RGA number marked clearly on the outside of the package Spectrum is not responsible for any package that is returned without a valid RGA number or for the loss of the package by any shipping company Spectrum Technologies Inc 23839 W Andrew Rd Plainfield IL 60544 800 248 8873 or 815 436 4440 FAX 815 436 4460 E Mail info specmeters com www specmeters com
7. s a key factor contributing to the development of plants insects and plant diseases Degree Days are a way to quantify the amount of heat that is available which is a function of the time the temperature is within a given temperature range For example if the base temperature is determined to be 40 degrees and the actual tem perature is 41 degrees for 24 consecutive hours one Degree Day is said to have accumulated 41 40 1 degree for 24 hours or 1 day Degree Days indicate the developmental stage of a pest generation This allows for more precise pesticide recommendations The WeatherTracker calculates Degree Days using the integral method Degree Day values are calculated at 15 minute intervals to produce Degree Quarter Hours DQH which are then summed over a full day DQH are calculated as follows DQH Tavg Tase Where Tavg is the average temperature over the 15 minute interval and Tbase is the base temperature If the average temperature is greater than the upper limit of the temperature range the upper temperature limit is used instead of the average temperature when calculating DQH If the average temperature is less than the base temperature DQH is set equal to zero for that interval WARRANTY The WeatherTracker is warranted to be free from defects in materials and workmanship for a period of 1 year from the date of original purchase During the warranty period Spectrum will at its option either repair or replace p
8. the counter and re move it from the archive and list of display screens see p 4 The StartNow option erases all the data from the archives and resets and restarts that counter from zero Caution Be careful when entering a parameter update screen for a Degree Day counter when that counter is enabled If the Set key is pressed the counter status will become modifiable and the archives WILL BE ERASED If this is not desirable press one of the arrow keys instead of the Set key to exit the screen EXTERNAL TEMP SENSOR The External Temperature Sensor includes a 10 foot cable Install your External Temperature Sensor following the guidelines below e To monitor soil temperature bury the sensor at a determined depth e To monitor water temperature drop the sensor into the water to the desired depth e Ifthe cable runs along the ground use metal or plastic conduit to protect the cable from rodents e Attach the cable to the mounting mast below the Weather Tracker using the wire tie supplied This will ensure that the sensor cable does not become unplugged by pests or strong winds If you have questions on sensor placement for your particular purpose and or geological area contact your cooperative extension agricultural agent for further suggestions on field placement Inspect the sensors frequently to make certain that the sensors have not been damaged and are clear of obstructions GROWING DEGREE DAYS Temperature i
9. tive Degree Day counter is disabled or reset the en tire archive for that counter will be erased see Parameter Update Screens p 5 METER OPERATION The WeatherTracker does not have a button or switch for powering up and down Instead the device is operational whenever the battery is installed The battery connection can be accessed by removing the face plate fig 2 Exercise care when replacing the plate to ensure the buttons aren t damaged When replacing or reinstalling the bat tery the time and date must be reprogrammed see Parameter Update Screens p 5 The Current Conditions screen see p 4 is updated every 20 seconds Note If an active Degree Day counter is disabled or reset the en tire archive for that counter will be erased see Parameter Update Screens p 5 Figure 2 WeatherTracker Battery Compartment KEYPAD OPERATION Pressing the Display key once brings the LCD display to life The screen will initially display descriptive information about the station The screen then displays current conditions Pressing the Display key a second time will deactivate the display The station continues to record conditions when the display is not active To con serve battery power the display goes off after 2 minutes of inactivity DINEI Press the Arrow key to scroll through the different screens Initially the screen will display the latest WeatherTracker information The Current Condi tions scree
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