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47

ATMOS 41W

5. Slide the battery pack out of the battery cap (

Figure 25

).

Battery cap

Battery pack
w/6 batteries

Figure 25 Battery pack removed from cap

6. Replace batteries.

NOTE: Make sure replaced battery polarity and battery pack orientation are correct.

The wire connecting the battery pack to the unit will be oriented up (

Figure 26

).

Figure 26 Battery polarity and pack orientation

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Содержание ATMOS 41W

Страница 1: ...ATMOS 41W...

Страница 2: ...3 1 Specifications 21 3 2 Components 25 3 2 1 Pyranometer Solar Radiation 26 3 2 2 Rain Funnel Precipitation 28 3 2 3 Electrical Conductivity EC 34 3 2 4 Vapor Pressure and Relative Humidity 34 3 2 5...

Страница 3: ...52 4 ZENTRA Software 53 4 1 ZENTRA Utility Mobile 53 4 2 ZENTRA Cloud 53 5 Service 55 5 1 Uninstalling 55 5 2 Calibration 55 5 3 Recalibration Recommendations 57 5 4 Cleaning and Maintenance 57 5 5 U...

Страница 4: ......

Страница 5: ...average Wind speed Wind direction Maximum wind gust Tilt All sensors and wireless cloud communications are integrated into a single small form factor unit requiring minimal installation effort A robu...

Страница 6: ...s 13 mm 1 2 in wrench 8 mm 5 16 in wrench ZENTRA Cloud Device Subscription information orange card 6 AA batteries installed NiMH rechargeable When evaluating where to install the ATMOS 41W METER recom...

Страница 7: ...w the recommended installation instructions and have the proper protections in place to safeguard sensors from damage 2 1 INSTALLATION Follow the steps listed in Table 1 to set up the ATMOS 41 and sta...

Страница 8: ...vice Serial Number A4100000 Device Password password Server zentracloud com Use this unique Device Serial Number and Device Password to subscribe to this device on zentracloud com Keep this informatio...

Страница 9: ...t blinking indicating power is available NOTE The status lights will settle to a short single green blink every 5 s signaling the data acquisition component is ready for use Test Bluetooth Module With...

Страница 10: ...ew the cellular data upload setting and the sensor measurement interval Make changes if desired and save changes Section 2 2 2 Factory default configuration is 15 min logging interval and 1 h upload V...

Страница 11: ...Cloud Select the Sign Up button Enter a valid email address and user information Accept the Terms and Conditions Verify User Account Select the Sign Up botton to generate a confirmation email Click on...

Страница 12: ...elect Create Organization Enter Organization name Enter Role Select Accept Add Device Click on Add New button Select the desired Device from the menu Enter the Device Serial Number and the Device Pass...

Страница 13: ...e mount location has minimal slope and low vegetation height so the pyranometer found on top of the rain funnel will not be covered by shade Identify Mounting Location Interferences Consider a site fa...

Страница 14: ...If the cellular signal is low or the cellular test fails move to an alternative location sometimes moving only a few meters is sufficient If there is significant bird activity at the site consider usi...

Страница 15: ...ue north not magnetic north The ATMOS 41W must be oriented correctly by hand for accurate wind direction measurements Mounting pole Mounting shelf North symbol V bolt Mount and Secure Device Tighten t...

Страница 16: ...retightening the screw The ATMOS 41W must be within approximately 2 of dead level to accurately measure rainfall and solar radiation Loosen the level screw Slide the ATMOS 41W side to side Bubble leve...

Страница 17: ...oid 7 0 or newer Add ZENTRA Cloud user credentials to allow uploading data 2 2 1 BLUETOOTH CONNECTION The ATMOS 41W rain funnel must be removed in order to press the TEST button before establishing a...

Страница 18: ...14 Operation Once connected the ZENTRA Utility Mobile screen will show the sensor information and instantaneous sensor readings Figure 3 Figure 3 Information and current sensor readings...

Страница 19: ...GURATION The measurement interval and upload increments can be adjusted here 1 On the mobile device open ZENTRA Utility Mobile 2 Select the ATMOS 41W 3 Select Configure on the Actions panel Figure 4 F...

Страница 20: ...the name to the field or plot where the ATMOS 41W is installed 5 OPTIONAL In the Configure Device window set the measurement interval to the desired interval Figure 5 The default measurement interval...

Страница 21: ...ents for the hour intervals The ATMOS 41W will upload data during the selected intervals 11 Click OK 2 2 3 COMMUNICATION TEST A successful communication test will confirm that the ATMOS 41W can transm...

Страница 22: ...sts are required press the Start button show on the right side of Figure 8 If the ATMOS 41W cellular test fails move to a new location and try again Sometimes moving just a few meters will provide a s...

Страница 23: ...lly scan the ATMOS 41W every 30 s and refresh the sensor readings ZENTRA Utility Mobile can also take real time sensor measurements on demand using the Refresh function Figure 9 This is a critical too...

Страница 24: ...20 Operation Figure 9 Refresh function To force a new scan at any time swipe down on the main screen or hit the Refresh button The sensor measurement area will refresh...

Страница 25: ...ar Radiation Range 0 1 750 W m2 Resolution 0 1 W m2 Accuracy 5 of measurement typical Precipitation Range 0 2 000 mm h Resolution 0 017 mm Accuracy 5 of measurement from 0 to 1000 mm h Electrical Cond...

Страница 26: ...sor accuracy Humidity Sensor Temperature Range 63 to 80 C Resolution 0 1 C Accuracy 0 2 C Barometric Pressure Range 1 120 kPa Resolution 0 01 kPa Accuracy 0 05 kPa 25 C 0 1 kPa from 10 to 50 C 0 5 kPa...

Страница 27: ...lution 0 1 Accuracy 1 GPS Communication Type Integrated 56 channel GPS QZSS receiver Update Daily automatic and on demand manual Accuracy 4 m with good sky view Sensor Measurement Interval 5 min to 12...

Страница 28: ...VERIZON AT T and T Mobile in the USA Select global partner carriers Cellular and data hosting service provided by METER Mobile Communication Bluetooth 5 2 supporting Bluetooth low energy protocol PHYS...

Страница 29: ...17050 2010 CE Mark 3 2 COMPONENTS The electric components including the data acquisition and transmission hardware are housed in a weather resistant enclosure IP56 rated Figure 12 The integrated data...

Страница 30: ...a silicon cell sensor to measure the total incoming direct and diffuse solar radiation A carefully developed cosine correcting head ensures accurate readings regardless of sun angle while the painstak...

Страница 31: ...ng the ATMOS 41W at installation Table 1 Bird droppings and other soiling of the domed sensor surface will cause serious errors in pyranometer measurements Check the sensor regularly to make sure it i...

Страница 32: ...nfall measurement The drop counter consists of two gold electrodes Figure 14 that measure each drop formed by the flared hole Because the flared hole forms a drop of a known size the ATMOS 41W can cal...

Страница 33: ...W Screen Downspout EC basin Drop count electrodes Tipping spoon Rain funnel OK TEST ERROR Status indicators TEST button Flared hole Spring Pyronometer Battery cap Battery cap Figure 14 Rain funnel and...

Страница 34: ...fall rates 400 mm hr Extends the off level tolerance for rainfall measurement If the ATMOS 41W is off level by significantly more than 2 degrees drops can miss the gold pins and will not be counted Th...

Страница 35: ...ving ATMOS 41W rain funnel 3 2 2 2 DISCONNECT PYRANOMETER AND RAIN FUNNEL Before removing the rain funnel completely carefully disconnect the pyranometer from the ATMOS 41W base by disconnecting the p...

Страница 36: ...placing the funnel do the following 1 Reattach the pyranometer connector by mating the two halves of the white connector and seating them firmly together until the tabs lock Figure 17 NOTE The connect...

Страница 37: ...33 ATMOS 41W Figure 17 Pyranometer cable connector Gold electrodes Tipping spoon Downspout screen Figure 18 Downspout and screen...

Страница 38: ...ment basin will also influence the EC measurement until the residual water and solutes are completely flushed from the basin Additionally microbial activity in the measurement basin can lead to biofou...

Страница 39: ...ssure of the air from the ATMOS 41W and es Tair is saturation vapor pressure at the air temperature given by the ATMOS 41W The saturation vapor pressure is calculated using the Magnus Tetens equation...

Страница 40: ...om 1 to 120 kPa the sensor is suitable for measurement across a wide range of elevations but keep in mind that the magnitude of sensor output will depend chiefly on the installation altitude with subt...

Страница 41: ...easured temperature to actual air temperature according to Equation 3 Equation 3 Tcorr Tuncorr S St cp k u d where s the absorptivity of the surface to solar radiation St the total solar radiation mea...

Страница 42: ...or in a radiation shield typical measurement approach showed an accuracy of 0 66 C also based on a two standard deviation estimate Thus the temperature correction of the ATMOS 41W appears to give a be...

Страница 43: ...t is rejected It is not reported as the maximum gust or included in the data that are averaged over the output interval For normal ATMOS 41W use cases this is an effective method for eliminating inacc...

Страница 44: ...plified as shown in Equation 9 Equation 9 This is the basic equation for the anemometer Delta n is proportional to the phase difference between the forward and reverse sound pulses The sound comes fro...

Страница 45: ...rithm may result in an error code being output NOTE Cup anemometers average over a much longer interval than 42 ms so the gusts measured with a sonic anemometer will have a larger peak to mean ratio t...

Страница 46: ...of the panels Figure 23 reducing solar exposure Solar panel Solar panel Figure 23 Solar panels 3 2 10 GPS RECEIVER The ATMOS 41W has a built in GPS receiver that provides the latitude longitude and al...

Страница 47: ...ENSOR MEASUREMENT INTERVAL The user defined sensor measurement interval controls how often the ATMOS 41W records sensor data to internal nonvolatile data storage The interval applies to all inputs on...

Страница 48: ...20m instantaneous solar radiation measurements Wind speed 3 s Wind run is calculated from average of 20m saved values of both horizontal wind vectors Wind direction 3 s Weighted direction calculated f...

Страница 49: ...be lower than the energy needed to operate the instrument The batteries will buffer the energy needs of the instrument for several months and will return to full capacity as the incoming energy excee...

Страница 50: ...attery cap 3 Remove the two screws with a Phillips screwdriver 4 Life off the cap Figure 24 The battery pack will most likely come up with the cap NOTE Be careful not to damage the battery pack wire w...

Страница 51: ...y pack w 6 batteries Figure 25 Battery pack removed from cap 6 Replace batteries NOTE Make sure replaced battery polarity and battery pack orientation are correct The wire connecting the battery pack...

Страница 52: ...lace the battery cap over the battery pack The cap fits very tight around the battery pack It might need to be angled somewhat to get it to cover the pack NOTE Be careful to not pinch the cable wire w...

Страница 53: ...ghts stay on during the reboot This reboot will not erase data or reset settings 2 Perform basic functionality testing on internal systems and evaluate the amount of charge in the battery Table 4 Tabl...

Страница 54: ...ure 29 are located near the TEST button and indicate the status of the ATMOS 41W There are several possible status states shown in Table 5 Table 5 Status Lights Status Lights Actions Indication Green...

Страница 55: ...to the instrument Upload session frequency and timing can be changed in ZENTRA Utility mobile Section 2 2 2 or ZENTRA Cloud The default setting is for the ATMOS 41W to upload data once per hour at a r...

Страница 56: ...meter ly 41w freezing snow for more information on ATMOS 41W performance in high latitude winter 3 3 2 HEAVY RAIN AND STRONG WIND During strong storm events water can splash off of the convex bottom...

Страница 57: ...can connect to ATMOS 41W via Bluetooth to do the following Configure operation parameters Test ATMOS 41W cellular communications Troubleshoot real time sensor measurements scan sensors ZENTRA Utility...

Страница 58: ...tion reference under high intensity discharge metal halide lamps The transfer standard pyranometers are calibrated through side by side comparison to the mean of at least two ISO classified reference...

Страница 59: ...curate to 0 1 C by the original manufacturer All sensors are verified against a NIST traceable standard thermometer to be within 0 2 C at the time of manufacture Vapor Pressure and RH ATMOS 41W vapor...

Страница 60: ...appable replacement pyranometers are available from METER Contact Customer Support to purchase a new funnel and consult Instructions for Swapping ATMOS 41W Funnel meter ly 41W funnel replace for instr...

Страница 61: ...ers 2 Check the following areas to make sure they are clear of miscellaneous environmental animal specifically bird droppings and insect debris or spider webs a Ultrasonic transducer openings Figure 3...

Страница 62: ...ase plate 3 Clean the ATMOS 41W body a Scrub with light to medium pressure using a warm damp cloth b Clean around posts and between crevices using a dry brush c Check the downspout Figure 33 for debri...

Страница 63: ...TMOS 41W Downspout Figure 33 Downspout d Observe the Teflon screen Figure 34 If the screen is dirty METER recommends replacing it with a new screen Contact Customer Support for a replacement Teflon sc...

Страница 64: ...n basin and EC sensor a Remove the rain funnel Section 3 2 2 1 b Detach the rain funnel Section 3 2 2 2 c Locate the precipitation basin and EC Sensor Figure 35 NOTE Do not touch the screws without gl...

Страница 65: ...roughly with tap of deionized water g Reattach the rain funnel Section 3 2 2 3 Contact Customer Support for a replacement Teflon screen CAUTION DO NOT immerse the sensor in water Water may corrode and...

Страница 66: ...ty batteries advertising higher charge capacity New NiMH batteries may also be purchased from METER Contact Customer Support to discuss concerns or recommendations Alkaline batteries should be replace...

Страница 67: ...at the convex base plate Figure 22 is not dirty Clean by flushing with water and dry with a dry cloth Section 5 4 Be sure the ATMOS 41W is level Not reading any precipitation or not measuring precipit...

Страница 68: ...S 41W has good batteries Press the TEST button to reset it Connect to a second Bluetooth device If the connection works the problem is likely with the first device ZENTRA Utility Mobile states there i...

Страница 69: ...rs function in ZENTRA Utility Mobile to confirm there are cellular carriers operating in the area If the problem persists contact Customer Support Can data be removed manually and or physically from t...

Страница 70: ...mber Description of the problem NOTE For products purchased through a distributor please contact the distributor directly for assistance 5 8 TERMS AND CONDITIONS By using METER instruments and documen...

Страница 71: ...QN4NNN XPYLISAU201 or XPYLISAU200 Changes or modifications to the ZL6 series loggers or antenna not expressly approved by METER Group Inc could void FCC compliance and thus the user s authority to ope...

Страница 72: ...articuliers qui fonctionnent dans des conditions d exposition des appareils mobiles les antennes se situent plus de 20 centim tres du corps d une personne Changes or modifications to the ZL6 series lo...

Страница 73: ...chnical Requirements certified type number 201 160496 ZL6 with TELEC approved 3G UMTS cellular module Technical Conditions certified type number AD120274003 Technical Requirements certified type numbe...

Страница 74: ...nsive sonic anemometer for eddy correlation J Appl Meteor 18 1072 1077 Buck AL 1981 New equations for computing vapor pressure and enhancement factor J Appl Meteor 20 1527 1432 Robinson RA Stokes RH 1...

Страница 75: ...Court Pullman WA 99163 T 1 509 332 2756 F 1 509 332 5158 E info metergroup com W metergroup com METER Group AG Mettlacher Stra e 8 81379 M nchen T 49 89 1266520 F 49 89 12665220 E info europe metergr...

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