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OTT Pluvio 2 S User Manual

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English
Operating Instructions
Precipitation gauge
OTT Pluvio
2
S

Table of Contents

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OTT Pluvio 2 S Specifications

General IconGeneral
Measurement PrincipleWeighing principle
Resolution0.01 mm
Heated VersionYes
Data InterfaceRS-485, SDI-12
Housing MaterialAluminum, powder-coated
Protection ClassIP67
Operating Temperature-40°C to +70°C
Supply Voltage12 VDC or 24 VDC
OutputRain intensity, amount, and duration
Power Supply12 VDC or 24 VDC

Summary

Introduction to the OTT Pluvio2 S

Measured Value Output via SDI-12 and RS-485

Details how the device outputs data via serial interfaces, covering intensity and accumulated precipitation.

Measured Value Output via Pulse Output

Explains data transmission using pulse signals for precipitation amount and status information.

Orifice Ring Rim Heater

Describes the optional feature for keeping the orifice rim clear of snow and ice.

Installing the OTT Pluvio2 S Precipitation Gauge

Recommended Cable Types and Lengths

Specifies required cable types and their maximum permissible lengths for connections.

Preparing the Installation Location

Guides on selecting an appropriate site and preparing the concrete foundation.

Installing the Base Plate on the Pedestal

Details the process of securing the base plate onto the installed pedestal.

Aligning the Base Plate

Crucial step to ensure the base plate is level for accurate weighing measurements.

SDI-12 Commands and Responses

Basic SDI-12 Commands

Covers fundamental communication protocols and commands for the device.

Advanced SDI-12 Commands

Details configuration options and advanced control commands for the sensor.

Performing Maintenance Operations

Emptying the Collecting Bucket

Instructions on how to safely empty the collecting bucket during regular maintenance.

Adding Anti-freeze Agent for Winter

Guidance on using anti-freeze to prevent damage from frozen precipitation.

Troubleshooting and Remedies

Provides solutions for common issues with communication and output signals.

Performing the Guided Accuracy Test

Details the procedure for checking and verifying the gauge's measurement accuracy.

Appendix A: Connecting to OTT Dataloggers

Connecting via SDI-12 or RS-485 Interface

Guides the integration of the Pluvio2 S with dataloggers using serial interfaces.

Connecting via Pulse Output

Explains the alternative method of connecting the gauge using pulse outputs.

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