Xylem SDI-12 RADAR Bedienungsanleitung

SDI-12 RADAR USER MANUALV2.0(FOR FIRMWARE V2.0)D36 0514WATER LEVEL SENSOR

INSTALLATION & MAINTENANCE8General Installation RecommendationsBefore proceeding with the installation, please consider several site preparation a

Grounding the Radar is a simple yet subtle thing to do. Figures on page 10 show the preferredmethods for grounding a radar gauge over a cable. A metal

INSTALLATION & MAINTENANCE10Layout of Hard Wire Radar InstallationLayout of Hard Wire Radar Installation with Insulator

Installation & Maintenance11The main difference between the figures on page 10, is that the radar enclosure in the second figure is insulated from t

Remember that grounding should be simple. If your system grounding is getting complicated,something is wrong. The purpose of grounding is to remove gr

Installation & Maintenance13You must prepare your data recorder to receive and record the Radar data. Since data recordersdiffer widely, refer to

INSTALLATION & MAINTENANCE14Step 3:Make several measurements (“aM!” and “aD0!”) and verify the Distance measurement is correct.Do not be concerned

Installation & Maintenance15The built-in LCD display normally displays Distance (distance from the radar unit to the water). The display has three

INSTALLATION & MAINTENANCE16The radar unit supports other configurations such as tank volume gauging which are not used forstream gauging applicati

17SDI-12 COMMAND & RESPONSE PROTOCOL03 /

CONTENTS & WARRANTYWarranty...1Chapter 1: Introduction...

SDI-12 COMMAND & RESPONSE 18This is a brief description of the Serial Digital Interface (SDI-12) Command and Response Protocol used by the WaterLO

The Measure Command causes a measurement sequence to be performed. Data values generatedin response to this command are stored in the sensor’s buffer

SDI-12 COMMAND & RESPONSE20Upon completion of the measurement, a service request “a<cr><lf>” is sent to the data recorderindicating th

SDI-12 Command & Response21The Radar supports two different “aM1” measurement commands based on the Power Mode.Data values generated in response t

SDI-12 COMMAND & RESPONSE22Upon completion of the measurement, a service request “a<cr><lf>” is sent to the data recorderindicating th

SDI-12 Command & Response23The Radar only supports the”aM2” measurement command when the Power Mode = 1. Datavalues generated in response to this

SDI-12 COMMAND & RESPONSE24Example of an “aM2!” command:Command Response Time Values Description"aM2!" “a0013<cr>

SDI-12 Command & Response25Upon completion of the measurement, a service request “a<cr><lf>” is sent to the data recorderindicating th

SDI-12 COMMAND & RESPONSE26This command is similar to the “aM1!” command, however, the nn field has an extra digit and thesensor does not issue a s

SDI-12 Command & Response27The data recorder may wake the sensor with a break and collect the data anytime after the specified processing time has

1Contents & Warranty“WATERLOG™ PRODUCTS MANUFACTURED BY YELLOW SPRINGS INSTRUMENTS CO., INC. are warranted by Yellow Springs Instruments Co., Inc.

SDI-12 COMMAND & RESPONSE28To enhance the error detection capability in SDI-12 data collection systems, a variation of the Start Measurement Comma

The Send Identification Command responds with sensor vendor, model, and version data. Anymeasurement data in the sensor’s buffer is not disturbed.Comma

xx...xx is an optional field of up to a maximum of 13 characters to be used for serial number or other specific sensor information not relevant t

SDI-12 Command & Response31The Radar processes Distance data and computes Stage = m * Distance + b. During installation it is convenient to quickl

Example of an Extended “Read Slope” command:Command Response Time Values Description“aXRS!” “a0011<cr><lf>” 1 sec 1

SDI-12 Command & Response33This command takes 001 seconds to complete and places 1 value in the data buffer. Use the “aD0” command to collect and

SDI-12 COMMAND & RESPONSE34This command is used for installation or production testing and requires the use of a H-4191 Sidekick interface and a P

35APPENDIX04 /

APPENDIX36PERFORMANCEAccuracy±0.01 ft (±3 mm) (H-3611/3613)(including linearity, repeatability and hysteresis)Frequency~26 GHzElectromagneticCompatibi

Appendix37Information For User:NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part

INTRODUCTION01 /2

1) The tissue in plants that brings water upward from the roots;2) a leading global water technology company.We’re 12,000 people unified in a common pu

Below is a quick overview of the common features of all Radar series products.• Simple to install, use, and maintain• Non-contact level measurement el

INTRODUCTION4Built-in LCD DisplayThe Radar sensor has a built-in LCD display which normally shows Distance (distance from the radar unit to the water)

Normally, the Radar transmits the service request within 530mS of receipt of the command. Aswith many data loggers, this leaves insufficient time to su

6INSTALLATION & MAINTENANCE02 /

7Installation & MaintenanceThe Radar is a time-of-flight microwave radar level sensor. It excels in applications where ice, logs, floating debris an