HOBOnet Soil Moisture EC-5 Sensor

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PT. Global Intan Teknindo

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Kategori: Uncategorized Brand: HOBO

Deskripsi

HOBOnet Soil Moisture EC-5 Sensor mengukur kelembapan tanah secara akurat untuk berbagai kebutuhan pemantauan lingkungan dan pertanian. Selain itu, sensor ini membantu pengguna memahami kondisi air di dalam tanah secara berkelanjutan. Perangkat ini cocok untuk pertanian, rumah kaca, kehutanan, penelitian lingkungan, serta pengelolaan irigasi. Dengan demikian, pengguna dapat meningkatkan efisiensi penggunaan air berdasarkan data yang andal.

Selanjutnya, sensor terhubung secara nirkabel melalui jaringan mesh HOBOnet menuju stasiun HOBO RX3000 atau HOBO MicroRX. Sistem mengirimkan data secara otomatis ke platform HOBOlink untuk pemantauan jarak jauh. Di samping itu, setiap node membantu memperluas jangkauan komunikasi pada area pemantauan yang luas. Oleh karena itu, pengguna dapat mengakses hasil pengukuran melalui komputer maupun perangkat seluler kapan saja.

Panel surya internal menyediakan sumber daya utama selama pengoperasian. Selain itu, baterai isi ulang menjaga kinerja sensor ketika intensitas cahaya matahari menurun. Memori internal menyimpan data sementara apabila koneksi jaringan terputus. Kemudian, sistem mengirimkan kembali seluruh data setelah koneksi kembali normal. Teknologi mesh meningkatkan kestabilan komunikasi pada berbagai kondisi lapangan.

Sementara itu, sensor EC-5 mengukur kadar air volumetrik tanah dengan respons yang cepat dan hasil yang stabil. Pengguna dapat memanfaatkan data tersebut untuk mengoptimalkan jadwal irigasi, meningkatkan produktivitas tanaman, dan mendukung penelitian lingkungan. Tidak hanya itu, konstruksi tahan cuaca meningkatkan keandalan selama penggunaan luar ruangan. Terakhir, HOBOnet Soil Moisture EC-5 Sensor memberikan solusi pemantauan kelembapan tanah yang andal, efisien, dan mudah diintegrasikan dengan sistem HOBOnet.

Spesifikasi

RXW-SMC-xxx	RXW-SMD-xxx
Measurement Range	In soil: 0 to 0.550 m³/m³ (volumetric water content)	In soil: 0 to 0.570 m³/m³ (volumetric water content)
Extended Range	-0.401 to 2.574 m³/m³; see Note 1	-0.659 to 0.6026 m³/m³; see Note 1
Accuracy	±0.031 m³/m³ (±3.1%) typical 0 to 50°C (32° to 122°F) for mineral soils up to 8 dS/m and ±0.020 m³/m³ (±2%) with soil specific calibration; see Notes 2 and 3	±0.033 m³/m³ (±3.3%) typical 0 to 50°C (32° to 122°F) for mineral soils up to 10 dS/m and ±0.020 m³/m³ (±2%) with soil specific calibration; see Notes 4 and 5
Resolution	0.0007 m³/m³ (0.07%)	0.0008 m³/m³ (0.08%)
Volume of Influence	0.3 liters (10.14 oz)	1 liter (33.81 oz)
Sensor Frequency	70 MHz	70 MHz
METER ECH2O Probe Part No.	EC-5	10HS
Sensor Operating Temperature Range	0° to 50°C (32° to 122°F). Although the sensor probe and cable can safely operate at below-freezing temperatures (to -40°C/F), the soil moisture data collected at these extreme temperatures is outside of the sensor’s accurate measurement range.	0° to 50°C (32° to 122°F). Although the sensor probe and cable can safely operate at below-freezing temperatures (to -40°C/F), the soil moisture data collected at these extreme temperatures is outside of the sensor’s accurate measurement range. Extended temperatures above 50°C (122°F) will decrease mote battery life.
Wireless Mote
Operating Temperature Range	-25° to 60°C (-13° to 140°F) with rechargeable batteries -40° to 70°C (-40° to 158°F) with lithium batteries
Radio Power	12.6 mW (+11 dBm) non-adjustable
Transmission Range	Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high
Wireless Data Standard	IEEE 802.15.4
Radio Operating Frequencies	RXW-SMC-900 and RXW-SMD-900: 904–924 MHz RXW-SMC-868 and RXW-SMD-868: 866.5 MHz RXW-SMC-921 and RXW-SMD-921: 921 MHz RXW-SMC-922 and RXW-SMD-922: 916–924 MHz
Modulation Employed	OQPSK (Offset Quadrature Phase Shift Keying)
Data Rate	Up to 250 kbps, non-adjustable
Duty Cycle	<1%
Maximum Number of Motes	Up to 50 wireless sensors or 336 data channels per one HOBO RX station
Logging Rate	1 minute to 18 hours
Number of Data Channels	2
Battery Type/ Power Source	Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40° to 70°C (-40° to 158°F)
Battery Life	With NiMH batteries: Typical 3–5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life With lithium batteries: 1 year, typical use
Memory	16 MB
Dimensions	RXW-SMC-xxx soil probe: 89 x 15 x 1.5 mm (3.5 x 0.62 x 0.06 in.) RXW-SMD-xxx soil probe: 160 x 32 x 2 mm (6.5 x 1.25 x 0.08 in.) Cable length: 5 m (16.4 ft) Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight	RXW-SMC-xxx sensor and cable: 180 grams (6.3 oz) RXW-SMD-xxx sensor and cable: 190 grams (6.7 oz) Mote: 223 g (7.87 oz)
Materials	Sensor: Weatherproof Mote: PCPBT, silicone rubber seal
Environmental Rating	Mote: IP67, NEMA 6
Compliance Marks	Image RXW-SMC-900 Image RXW-SMC-868 Image RXW-SMC-922 RXW-SMC-921

Note 1:(RXW-SMC-xxx and RXW-SMD-xxx) The sensor is capable of providing readings outside the standard volumetric water content range. This is helpful in diagnosing sensor operation and installation. See the Sensor Operation section for more details.

Note 2: (RXW-SMC-xxx) This is a system level accuracy specification and is comprised of the probe’s accuracy of ±0.03 m³/m³ typical (±0.02 m³/m³ soil specific) plus the mote accuracy of ±0.001 m³/m³ at 25°C (77°F). There are additional temperature accuracy deviations of ±0.003 m³/m³ / °C maximum for the probe across operating temperature environment, typical <0.001 m³/m³ / °C. (The temperature dependence of the mote is negligible.)

Note 3: (RXW-SMC-xxx) Given the nature of the sensor design and sensor operating frequency, the system has inherent susceptibilities to Radio Frequency signals. The accuracy specification when subjected to certain RFI environments, such as those outlined in IEC 61000-4-3 and IEC 61000-4-6, is reduced to 0.061 m³/m³. The system level accuracy will be particularly affected when placed in an electric field of 3 V/m or greater in the 70 MHz range. RFI mitigation practices and physical deployment changes may reduce the systems susceptibility.

Note 4: (RXW-SMD-xxx) This is a system level accuracy specification and is comprised of the probe’s accuracy of ±0.03 m³/m³ typical (±0.02 m³/m³ soil specific) plus the mote accuracy of ±0.003 m³/m³ at 25°C (77°F). There are additional temperature accuracy deviations of ±0.003 m³/m³ / °C maximum for the probe across operating temperature environment, typical <0.001 m³/m³ / °C. (The temperature dependence of the mote is negligible.)

Note 5: (RXW-SMD-xxx): Given the nature of the sensor design and sensor operating frequency, the system has inherent susceptibilities to Radio Frequency signals. The accuracy specification when subjected to certain RFI environments, such as those outlined in IEC 61000-4-3 and IEC 61000-4-6, may be significantly reduced. The system level accuracy will be particularly affected when placed in an electric field of 3 V/m or greater in the 150 KHz to 1000 MHz range. RFI mitigation practices and physical deployment changes may reduce the systems susceptibility, however will yield reduced system accuracy. If deployments are planned in high RFI energy environments, Onset recommends on-site testing to determine system level accuracy.