Read PHYTOS 31 FAQs

How do I assemble the anemometer mast?

The anemometer mast is suitable to mount METER’s above-ground sensors: ATMOS 41, ATMOS 22, ATMOS 14, PAR, PYR, IRT, SRS, PHYTOS 31, ECRN-100, ECRN-50, and ECT. For assembly, read: “Anemometer Mast Assembly Instructions“.

How often should I recondition the surface of the PHYTOS 31 leaf wetness sensor to prevent UV damage?

METER recommends applying McNett UV Tech to the PHYTOS 31 sensor every 45 days. McNett UV Tech is sold separately and is the only 3rd party tested and approved UV blocking system for the PHYTOS 31.

What is the accuracy or tolerance of the PHYTOS 31 (LWS)?

We set each PHYTOS 31 (LWS) to read very close to identically when dry. Our specification is 318-321 mV at 3000 mV excitation. The sensor does not have a voltage regulator, so larger differences could be caused from an unstable excitation voltage. Because the sensor is not regulated, the output will be somewhat proportional to the excitation (2.5 to 5.0 V).

Related software downloads

PHYTOS 31/Leaf Wetness Sensor Manual	Manual	PDF, 0.403MB	Download PHYTOS 31/Leaf Wetness Sensor Manual Manual
PHYTOS 31 Quick Start	Quickstart Guide	PDF, 0.529MB	Download PHYTOS 31 Quick Start Quickstart Guide
PHYTOS 31/LWS CSI Example Program	Instructions	URL, 0MB	Download PHYTOS 31/LWS CSI Example Program Instructions
Anemometer Mast Assembly Instructions	Manual	PDF, 0.527MB	Download Anemometer Mast Assembly Instructions Manual

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