METER GROUP ATMOS 14 GEN 2 Скачать руководство пользователя

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INDEX

applications 1

barometric pressure 8

calibration 15
cleaning

See maintenance

compliance 11
components 11 –12

barometric pressure sensor 12
filter 12
radiation shield 2

relative humidity and temperature sensor

connecting 4–6
customer support 18

email address 18

fax number 18

installation 2–3

Magnus-Tetens equation 12
maintenance 16–17
measurements

barometric pressure 8
relative humidity 7
temperature 7–8
vapor pressure 8

phone number 18

references 20
relative humidity 7

salt solution 16–17
sensor poisoning 16
specifications

communication 8
electrical and timing 9–10
measurements 7 –8
physical 9

temperature 7

terms and conditions 19
theory

relative humidity 13
temperature 14
vapor pressure 12–13

troubleshooting 17–18

vapor pressure 8

ZENTRA

logger 4
ZENTRA Cloud 4
ZENTRA Utility 4

Содержание ATMOS 14 GEN 2

Страница 1: ...ATMOS 14 GEN 2...

Страница 2: ...3 2 1 Radiation Shield 12 3 2 2 Relative Humidity and Temperature Sensor 12 3 2 3 Barometric Pressure Sensor 12 3 3 Theory 12 3 3 1 Vapor Pressure 12 3 3 2 Relative Humidity 13 3 3 3 Temperature 14 4...

Страница 3: ......

Страница 4: ...monitoring and control and building humidity monitoring for mold prevention and remediation Verify that ATMOS 14 and radiation shield if ordered appear in good condition This manual pertains specific...

Страница 5: ...For most outdoor and greenhouse measurement scenarios the ATMOS 14 must be housed in a radiation shield with adequate air ow to allow the sensor to come into equilibrium with air temperature For nongr...

Страница 6: ...ues can be caused by many factors such as rodent damage driving over sensor cables tripping over cables not leaving enough cable slack during installation or poor sensor wiring connections Install cab...

Страница 7: ...stom cable lengths for an additional fee on a per meter basis In some instances the cable can be extended beyond 75 m by the user but this is discouraged for a variety of reasons Please contact Custom...

Страница 8: ...orange to a digital input and the bare ground wire to ground Ground bare Digital communication orange Power brown Figure 2 Pigtail wiring NOTE The VP 4 predecessor to ATMOS 14 may have the older Decag...

Страница 9: ...rface and the ZENTRA Utility Mobile app as described below NOTE The sensor SDI 12 address must be returned to 0 to work with ZENTRA loggers 1 Using a mobile device open the ZENTRA Utility Mobile app 2...

Страница 10: ...measurement accuracy is variable across a range of RH Refer to the chart in Figure 4 Figure 4 RH sensor accuracy Equilibration Time 63 25 s response time in 1 m s air stream Hysteresis 0 80 RH typical...

Страница 11: ...igure 5 Vapor pressure sensor accuracy Barometric Pressure Range 1 120 kPa Resolution 0 01 kPa Accuracy 0 05 kPa at 25 C Equilibration Time 63 10 ms Long Term Drift 0 1 kPa year typical COMMUNICATION...

Страница 12: ...stance Cable Length 5 m standard 75 m maximum custom cable length NOTE Contact Customer Support if a nonstandard cable length is needed Connector Types 3 5 mm stereo plug connector or stripped and tin...

Страница 13: ...rent Drain during measurement Minimum 3 0 mA Typical 3 5 mA Maximum 9 9 mA Current Drain while asleep Minimum NA Typical 0 03 mA Maximum NA Power Up Time DDI serial Minimum NA Typical NA Maximum 110 m...

Страница 14: ...be inserted into a radiation shield Section 3 2 1 End cap Cable Sensor body Figure 6 ATMOS 14 components The ATMOS 14 uses a primary sensor chip to measure RH and air temperature Section 3 2 2 and a...

Страница 15: ...air ow to allow the sensor to come into equilibrium with air temperature Each sensor chip is veri ed as accurate before prior to shipment However all capacitance RH sensors drift over long periods of...

Страница 16: ...water is used to calculate vapor pressure over the full temperature range ATMOS 14 vapor pressure output values are correct over the full temperature range The METER ZENTRA system calculates and outp...

Страница 17: ...4 has a band gap temperature sensor integrated into the sensor electronics The temperature sensor accurately measures the sensor temperature Sensor temperature should remain close to air temperature i...

Страница 18: ...th recently calibrated sensors METER recommends that the sensor modules be replaced every 2 years to ensure best accuracy Please contact Customer Support for new sensor modules The process for swappin...

Страница 19: ...he airflow through the radiation shields and may reduce its effectiveness However the polymer RH sensing element in the ATMOS 14 can be poisoned by exposure to volatile organic compounds solvents and...

Страница 20: ...ing from communication problems catastrophic sensor failure or highly inaccurate measurements due to sensor poisoning by volatile chemicals If the problem is not listed or these solutions do not solve...

Страница 21: ...air temperature Ensure that the ATMOS 14 sensor body is not exposed to high levels of thermal radiation This is could be important in some industrial applications Test to see if the sensor responds to...

Страница 22: ...l number Description of the problem NOTE For products purchased through a distributor please contact the distributor directly for assistance 4 6 TERMS AND CONDITIONS By using METER instruments and doc...

Страница 23: ...Murray F W 1967 On the Computation of Saturation Vapor Pressure Journal of Applied Meteorology 6 203 204 Robinson Robert A and Robin H Stokes 2002 Electrolyte Solutions Second Revised Edition New Yor...

Страница 24: ...M Magnus Tetens equation 12 maintenance 16 17 measurements barometric pressure 8 relative humidity 7 temperature 7 8 vapor pressure 8 P phone number 18 R references 20 relative humidity 7 12 13 S sal...

Страница 25: ...ins 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 mete...

Страница 26: ......

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