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Davis Instruments Energy EnviroMonitor User Manual

Energy enviromonitor system console
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Product # 7460 & 7465

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Summary of Contents for Davis Instruments Energy EnviroMonitor

  • Page 1 ’ ONSOLE ANUAL Product # 7460 & 7465...
  • Page 2 Energy EnviroMonitor™ Console, Standard & Industrial Rev. B Manual (7/8/99) This product complies with the essential protection requirements of the EC EMC Directive 89/336/EC. © Davis Instruments Corp. 1997. All rights reserved. EnviroMonitor™ is a trademark of Davis Instruments Corp. ¨ WeatherLink is a registered trademark of Davis Instruments Corp.
  • Page 3 ’ ONSOLE ANUAL...

  • Page 4: Table Of Contents

    ....5 ... . . 6 ... . . 15 Energy EnviroMonitor Manual...
  • Page 5 EMPERATURE AND Viewing Temperature and Apparent Temperature ....26 Selecting Units of Measure ........27 Highs and Lows .
  • Page 6 ......51 UMBERS ATTERY ACKUP ..54 NDICATORS Energy EnviroMonitor Manual...
  • Page 7 Table of Contents Page iv...

  • Page 8: Introduction To The Energy Enviro Monitor

    Chapter For use by fuel distributors, planners, and utilities, the Energy EnviroMonitor (Energy EM) measures weather conditions which aid in estimating fuel oil con- sumption, heating and cooling energy requirements at a development site, and solar and wind energy potentials at a collection site. This integrated weather...

  • Page 9: Optional Accessories

    CCESSORIES The following accessories, designed for use with the Energy EM, are available from your dealer or may be ordered directly from Davis Instruments. • Energy WeatherLink Logs data gathered by the Energy EM, downloads it to your PC, and generates reports and graphical displays.
  • Page 10 For upgraded protection against lightning-induced power surges, power-cross conditions, and ground potential rises, use Surge Protec- tors. Use one Surge Protector for every two wires and mount inside one of our surge-protector shelters. Energy EnviroMonitor Manual Optional Accessories Page 3...
  • Page 11 Introduction to the Energy EnviroMonitor Page 4 Energy EnviroMonitor Manual...

  • Page 12: Energy Enviro Monitor Overview

    Energy EM. The smaller and more rounded keys are operations keys and are used to view or use the various features of the Energy EM. Energy EnviroMonitor Manual N E R G Y N V I R O...

  • Page 13: Weather Conditions Measured /Calculated

    Energy EnviroMonitor Overview EATHER ONDITIONS This section outlines each of the weather conditions measured/calculated by the Energy EM. Each section includes a brief discussion of the weather condi- tion and a listing of the various ways in which the unit displays or stores that condition.

  • Page 14: Heating Degree-Days

    125˚ F (52˚ C) is the high- est T-H index for which calculation factors are available. Above 125˚ F (52˚ C), the system simply reports that T-H index is “high.” Energy EnviroMonitor Manual Weather Conditions Measured/Calculated Page 7...

  • Page 15: Wind

    Energy EnviroMonitor Overview Wind chill takes into account how the speed of the wind affects our perception of the air temperature. The body warms up the air molecules which surround it by transferring heat from the skin to the surrounding air. If the wind is com- pletely still, this “insulating layer”...

  • Page 16: Solar Radiation

    • “Daily” Rainfall (Alarm: High) (AutoClear) • Current Rate of Rainfall in inches or millimeters per hour • Total Rainfall • Maximum Rate of Rainfall with time of occurrence Energy EnviroMonitor Manual Weather Conditions Measured/Calculated ). The power Page 9...

  • Page 17: Barometric Pressure

    Energy EnviroMonitor Overview Barometric Pressure The weight of the air which makes up our atmosphere exerts a pressure on the surface of the earth. This pressure is known as atmospheric pressure. Gener- ally, the more air above an area, the higher the atmospheric pressure, which means that atmospheric pressure changes with altitude.

  • Page 18: Dew-Point

    The following values are accumulated or averages calculated during the period. Note that averages are not displayed (i.e., a series of dashes appears instead) until at least one day has elapsed. • Total Cooling Degree-Days Energy EnviroMonitor Manual Period Page 11...

  • Page 19: Auto Clear

    Energy EnviroMonitor Overview • Average Daily Cooling Degree-Days • Total T-H Index Cooling Degree-Days • Average Daily T-H Index Cooling Degree-Days • Total Heating Degree-Days • Average Daily Heating Degree-Days • Total Wind Chill Heating Degree-Days • Average Daily Wind Chill Heating Degree-Days •...

  • Page 20: High And Low

    The table below summarizes the highs and lows stored by the Energy EM. ONDITION Outside Temperature T/H Index Wind Chill Inside Temperature Wind Speed Rate of Rainfall Outside Humidity Energy EnviroMonitor Manual LEAR Highs and Lows DDITIONAL NFORMATION Direction of Gust Page 13...

  • Page 21: Alarms

    Energy EnviroMonitor Overview LARMS The Energy EM features a set of alarms which can be programmed to sound whenever a reading exceeds a particular value. With the exception of baromet- ric pressure, dew-point, and time, all alarms sound when a reading reaches the alarm threshold and will continue to sound until the reading returns to within the threshold.

  • Page 22: Using The Energy Enviro Monitor

    ENTER for at least 8 second before changing the barometric pressure value. As you hold ENTER for those 8 seconds, the entire value will flash as a further reminder. Energy EnviroMonitor Manual S I N G T H E...

  • Page 23: Entering Negative Numbers

    Using the Energy EnviroMonitor Entering Negative Numbers If you want to enter a negative number, first enter the number without the neg- ative sign. Then press and release ENTER until the appropriate digit (the one where you want to place the negative sign) begins to flash. Hold ENTER as this digit cycles through the available entries, one of which will be a negative sign if a negative entry is valid.

  • Page 24: Cooling Degree-Day,

    The daily cooling degree-days sum represents the total cooling degree-days since the last time you (or AutoClear) cleared cooling degree-days. For instructions on clearing daily cooling degree-days, see “Clearing Daily Cool- ing Degree-Days Sum” on page 21. Energy EnviroMonitor Manual “O ” D NTERING THE...
  • Page 25 Using the Energy EnviroMonitor 2. To display the total cooling degree-days for the period, press COOL’G D-DAYS again. The total cooling degree-days for the period appear on the right of the dis- play. The base threshold setting appears on the left of the display.
  • Page 26 The base threshold setting appears on the left of the display. VERAGE AILY 7. To display the threshold, press COOL’G D-DAYS again. The threshold appears on the right of the display. Energy EnviroMonitor Manual NDEX OOLING EGREE- T-H I...

  • Page 27: Selecting Units Of Measure

    Using the Energy EnviroMonitor 8. To display the date on which the current period started and the number of days in the period, press COOL’G D-DAYS again. The date on which the period started appears on the right of the display. The number of days in the period appears on the left of the display.

  • Page 28: Setting Cooling Degree-Days Threshold

    2. Press and hold down CLEAR until the cooling degree-days sum resets to zero. Note: Clearing the daily cooling degree-days sum does not clear the daily T-H index degree-days sum and vice-versa. You must clear each sum individually (or use AutoClear). Energy EnviroMonitor Manual OOLING EGREE...

  • Page 29: Heating Degree-Day

    Using the Energy EnviroMonitor EATING EGREE- The Energy EM displays daily degree-days, total degree-days during the period, and the average heating degree-days per day during the period for both temperature and wind chill. (See “Period” on page 11 for a discussion of the period.) The default heating degree-days base threshold is 65˚...
  • Page 30 5. To display the total wind chill heating degree-days for the period, press HEAT’G D-DAYS again. The total wind chill heating degree-days for the period appear on the right of the display. The base threshold setting appears on the left of the display. OTAL Energy EnviroMonitor Manual AILY EATING EGREE- AILY...
  • Page 31 Using the Energy EnviroMonitor 6. To display the average daily wind chill heating degree-days during the period, press HEAT’G D-DAYS again. The average daily wind chill heating degree-days appear on the right of the display. The base threshold setting appears on the left of the display.

  • Page 32: Selecting Units Of Measure

    “daily” heating degree-days total. 1. Press HEAT’G D-DAYS as necessary to display the desired heating degree-days sum. 2. Press and hold down CLEAR until the heating degree-days sum resets to zero. Energy EnviroMonitor Manual EATING EGREE- NITS OF...

  • Page 33: Temperature And Apparent Temperature

    Using the Energy EnviroMonitor EMPERATURE AND The Energy EM displays the current outside temperature, inside temperature, T-H index, and wind chill. In addition, you may view the high and low inside and outside temperatures, the high T-H index, and the low wind chill along with the time at which they occurred.

  • Page 34: Selecting Units Of Measure

    ˚F and ˚C (and between 1˚ and 0.1˚ resolution if changing the units for out- side or inside temperature) All temperature information (including degree- days and dew-point) will appear in the units of measure you select. Energy EnviroMonitor Manual URRENT NSIDE...

  • Page 35: Highs And Lows

    Using the Energy EnviroMonitor Highs and Lows The Energy EM displays the high and low outside temperature, the high T-H index, the low wind chill, and the high and low inside temperature along with the time at which it occurred. For information on displaying and clearing highs and lows, see “Highs and Lows”...
  • Page 36 If the AutoClear function is disabled, the word OFF appears on the right of the display. (See “Enabling/Disabling AutoClear” on page 50 for instructions.) 7. Continuing to press WIND will cycle through the wind displays in a continuous loop. Energy EnviroMonitor Manual AILY VERAGE...

  • Page 37: Selecting Units Of Measure

    Using the Energy EnviroMonitor Selecting Units of Measure To select the desired unit of measure, simply press UNITS while viewing any the wind speed or wind run displays. As you press UNITS, the Energy EM cycles through the available units of measure.

  • Page 38: Solar Radiation

    “Clearing Daily Solar Energy” on page 32. 3. To display the average daily energy during the period, press SUN again. The average daily energy during the period appears on the right of the dis- play. Energy EnviroMonitor Manual URRENT OLAR ADIATION NTENSITY...

  • Page 39: Clearing Daily Solar Energy

    Using the Energy EnviroMonitor 4. To display the date on which the current period started and the number of days in the period, press SUN again. The date on which the period started appears on the right of the display. The number of days in the period appears on the left of the display.

  • Page 40: Rainfall

    If the AutoClear function is disabled, the word OFF appears on the right of the display. (See “Enabling/Disabling AutoClear” on page 50 for instructions.) 4. Continuing to press RAIN will cycle through the rain displays in a continuous loop. Energy EnviroMonitor Manual AILY AINFALL OTAL...

  • Page 41: Selecting Units Of Measure

    Using the Energy EnviroMonitor Selecting Units of Measure To select the desired unit of measure, simply press UNITS while viewing daily or total rainfall. As you press UNITS, the Energy EM alternates between inches and millimeters. Rate of rainfall switches correspondingly from inches per hour to millimeters per hour automatically.

  • Page 42: Clearing Daily And Total Rainfall

    15 minutes. • Steady Barometric Pressure If barometric pressure changed by less than .02 inches of Hg (0.5 mm, or 0.7 hPa) over the past hour, the steady barometric pressure indicator appears. Energy EnviroMonitor Manual OTAL AINFALL LEARED TEADY...

  • Page 43: Viewing Barometric Pressure

    Using the Energy EnviroMonitor • Rising Barometric Pressure If barometric pressure rose by .02 inches of Hg (0.5 mm, or 0.7 hPa) or more over the past hour, the rising barometric pressure indicator appears. • Falling Barometric Pressure If barometric pressure fell by .02 inches of Hg (0.5 mm, or 0.7 hPa) or more over the past hour, the falling barometric pressure indicator appears.

  • Page 44: Selecting Units Of Measure

    Alarms You may set a special barometric pressure alarm which will alert you to changes in the barometric pressure. For information on displaying, setting, and clearing alarms, see “Alarms” starting on page 46. Energy EnviroMonitor Manual YPICAL NITS OF EASURE...

  • Page 45: Relative Humidity

    Using the Energy EnviroMonitor ELATIVE UMIDITY The Energy EM displays the current relative humidity. In addition, you may view the high and low relative humidity along with the time at which they occurred. Viewing Humidity 1. To display the current humidity, press HUM.

  • Page 46: Dew -Point

    Alarms You may set a special dew-point alarm which will alert you when temperature comes within 2˚F (˚1C) of dew-point. For information on displaying, setting, and clearing alarms, see “Alarms” starting on page 46. Energy EnviroMonitor Manual URRENT OINT YPICAL...

  • Page 47: Time

    Using the Energy EnviroMonitor The Energy EM displays the current time, date, year, the time at which the Energy EM performs the AutoClear each day, and the period information. You may display time in either 12-hour (AM/PM) or 24-hour (24h) format. You may display date in either Month-Day (Mo-Day) or Day.Month (Day.Mo) for-...
  • Page 48 The date on which the period started appear on the right of the display. The number of days in the current period appears on the left of the display. 6. Continuing to press TIME will cycle through the time displays in a continuous loop. Energy EnviroMonitor Manual IME OF LEAR...

  • Page 49: Selecting Display Format

    Using the Energy EnviroMonitor Selecting Display Format To select the desired display format, simply press UNITS while viewing either the time or the date. As you press UNITS, the Energy EM alternates between the available time/date formats. Entering Time, Date, or Year 1.

  • Page 50: Clearing Period Information/Starting A New Period

    flashing and the period information display returns. Note that the number of days in the current period resets to 0. This indicates that the Energy EM has cleared all period totals and begun a new period. Energy EnviroMonitor Manual ISPLAY LTERNATION URING...

  • Page 51: High And Low"

    Using the Energy EnviroMonitor IGHS AND The Energy EM stores highs/lows for many of its functions. The table con- tained in “Highs and Lows” starting on page 13 lists all of the highs and lows stored/displayed by the Energy EM. The procedure for displaying and clear- ing highs and lows is the same for each high/low.

  • Page 52: Clearing Highs And Lows

    4. Press any function key to exit. Each high/low is independent of every other. For instance, clearing the high air temperature does not clear the low air temperature. You must clear each individually. Energy EnviroMonitor Manual Highs and Lows Page 45...

  • Page 53: Alarms

    Using the Energy EnviroMonitor LARMS All alarms (except barometric pressure, dew-point, and time) behave in basi- cally the same way. The general procedure for displaying and setting alarms is covered below. The Alarm Display When an alarm is triggered, the Energy EM beeps and immediately displays the weather function triggering the alarm.

  • Page 54: Setting A Normal Alarm

    1. Press TEMP as necessary to display outside temperature. 2. Press UNITS as necessary to select ˚F. 3. Press ALARM twice to display the low alarm threshold. The high alarm threshold appears first, then the low alarm threshold. UTSIDE Energy EnviroMonitor Manual UTSIDE EMPERATURE EMPERATURE LARM...

  • Page 55: Setting The Barometric Pressure Alarm

    Using the Energy EnviroMonitor 4. Use ENTER to set the alarm to 32˚F. 5. Press TEMP to save and exit. The alarm is now set and will sound when the outside temperature drops to 32˚F. Setting the Barometric Pressure Alarm This section describes the barometric pressure alarm.

  • Page 56: To Silence An Alarm

    4. Press any key to exit. Each alarm threshold is independent of every other. For instance, clearing the high air temperature alarm does not clear the low air temperature alarm. You must clear each alarm individually. Energy EnviroMonitor Manual (2˚F) OINT LARM...

  • Page 57: Enabling /Disabling Auto Clear

    Using the Energy EnviroMonitor NABLING ISABLING The general procedure for enabling and disabling the AutoClear function for individual weather conditions is covered below. 1. Press the appropriate key(s) to display the desired weather condition’s AutoClear dis- play. 2. Press ENTER to alternate the status between on and off.

  • Page 58: To Use General Clear Feature

    (wind chill, for example) will also be affected. Calibrated Wind Speed = Revolutions * (1600/CAL) Default CAL = 1600 (for mph), 995 (for kph), 1843 (for knots), or 3578 (for m/s). Energy EnviroMonitor Manual Calibration Numbers Page 51...

  • Page 59: Rainfall

    Using the Energy EnviroMonitor Rainfall Rainfall CAL determines how much rainfall each increment (pulse) represents. The default rainfall CAL of 100 works for a 0.01” increment. Calibrated Rainfall= # of pulses * (1/CAL) If you use a rain collector which measures in a different increment, or if you wish to display rainfall in a unit of measure other than the rain collector’s...

  • Page 60: D Isplay Can

    The unit begins to cycle through the short scan routine. Until you stop the scan routine, it will continuously cycle through every condition measured or calculated by the Energy EM and every high/low stored by the Energy EM. Energy EnviroMonitor Manual Display Scan Page 53...

  • Page 61: Stopping A Scan Routine

    Using the Energy EnviroMonitor Stopping a Scan Routine A scan routine will continue until you manually stop it or an alarm is triggered. To stop a scan routine, simply press any function key. The unit will cease cycling through the scan routine and display the appropriate condition.
  • Page 63 NERGY NVIRO UNCTION The lists below indicate what condition appears when you press each function key. Each time you press the key, the next item in the list appears. COOL’G D-DAYS (Cooling Degree-Days) Daily Cooling Degree-Day Sum Total Cooling Degree-Days for the Period Average Daily Cooling Degree-Days (Period) Daily THI Cooling Degree-Day Sum Total THI Cooling Degree-Days for the Period...

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Energy enviromonitor 7460Energy enviromonitor 7465

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