PESSL INSTRUMENTS LEAF WETNESS
The leaf wetness sensor works by measuring the conductivity in a filter paper. The filter paper is held between two stainless steel electrodes in a transparent holder. The use of transparent Lucite plastic as a holder reduces the warming up of the sensor when it is exposed to direct sunlight.
| SENSOR | PESSL INSTRUMENTS LEAF WETNESS |
| Part No. | IM521CD |
Technical specifications
| Supply voltage | 4.75 V – 5.25 V |
| Supply current | max. 1500 μA |
| Short circuit protection | Infinite (within supply voltage range) |
| Dry / Wet threshold | 220 – 390 kOhm |
| Output | Dry: max. 0.4 VDC Wet: min. VCC-0.4VDC |
| Electronic | Totally plastic encapsulated – SMD |
| Evaluation | Digital – Filter paper |
| Dimensions | 127 mm x 254 mm x 508 mm |
| Cable length | 5 m |
PESSL INSTRUMENTS GmbH
Werksweg 107, A-8160 Weiz, Austria
Tel: +43 (0) 3172 5521, Fax: +43 (0) 3172 5521 23
E-mail: sales@metos.at, Webpage: www.metos.at
Values may be changed without notice. All rights reserved. © 1984-2018 Copyright PESSL INSTRUMENTS GmbH
