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Manual revision 006
Table of Contents
HydroCAT (SDI-12 & RS-232)
Table of Contents
Limited Liability Statement ................................................................ 2
Declaration of Conformity .................................................................. 3
Table of Contents ................................................................................. 4
Section 1: Introduction ........................................................................ 6
About this Manual .............................................................................................6
Quick Start .........................................................................................................7
Unpacking HydroCAT .......................................................................................8
Shipping Precautions .........................................................................................9
Section 2: Description of HydroCAT ............................................... 10
System Description ..........................................................................................10
Specifications ...................................................................................................12
Dimensions and End Cap Connector ...............................................................13
Cables and Wiring ...........................................................................................14
Pump Operation ...............................................................................................15
Minimum Conductivity Frequency for Pump Turn-On ............................15
Pumping Time and Speed - DO Sensor NOT Installed ............................15
Pumping Time and Speed – DO Sensor Installed .....................................15
Sample Timing .................................................................................................17
Battery Pack Endurance ...................................................................................17
External Power .................................................................................................20
Cable Length and External Power ............................................................20
Section 3: Preparing HydroCAT for Deployment .......................... 22
Battery Pack Installation ..................................................................................22
Software Installation ........................................................................................24
Power and Communications Test ....................................................................24
Test Setup .................................................................................................24
Test ...........................................................................................................25
Section 4: Deploying and Operating HydroCAT ............................ 26
Sampling Modes ..............................................................................................26
Polled Sampling ........................................................................................27
Autonomous Sampling (Logging commands) ..........................................28
RS-232 Real-Time Data Acquisition ...............................................................29
Timeout Description ........................................................................................29
Command Descriptions – Transmission via RS-232 .......................................29
Command Descriptions and Data Output Format – Transmission via SDI-12 30
SDI-12 Standard Commands ....................................................................30
SDI-12 Extended Commands ...................................................................32
SDI-12 Data Format .................................................................................33
RS-232 Data Formats .......................................................................................34
Optimizing Data Quality ..................................................................................38
Setup for Deployment ......................................................................................39
Deployment ......................................................................................................40
Recovery ..........................................................................................................41
Uploading Data ................................................................................................42
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