INSTRUCTION MANUAL CS445 Liquid Level Sensor 1/04 C o p y r i g h t ( c ) 2 0 0 4 C a m p b e l l S c i e n t i f i c , I n c .
The CS445 Pressure Transducer is manufactured by KWK Technologies. KWK’s conditions of sale and return policy apply to these items. Products may not be returned without prior authorization. To obtain an RMA number contact KWK Technologies, Inc., phone (509) 466-5871, www.kwktechnologies.com. NOTE: if the product has been exposed to hazardous media, it must be fully decontaminated and neutralized prior to return to KWK.
CS445 Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections. 1. Introduction.................................................................1 2. Specifications .............................................................1 3. Installation...................................................................2 3.1 Initial Inspection and Handling Guidelines.........................................
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CS445 Liquid Level Sensor 1. Introduction This manual describes using the CS445, KWK Technologies’ SPXD-600 submersible pressure transducer with Campbell Scientific’s CR10(X), CR23X, CR510, CR500 and CR200 series dataloggers. Information provided in the manual includes datalogger-to-sensor connection, datalogger programming, and maintenance requirements. The CS445 Submersible Pressure Transducer is designed to provide reliable, accurate water pressure/level measurements.
CS445 Liquid Level Sensor Communications: Protocol: Output Units: SDI-12 Subset. Supported Commands: aM!, aD!, aAb! (Firmware Version 1.0) PSI Pressure Measurement Specifications: Static Accuracy: Thermal Shift Zero: Thermal Shift Span: 1 0.1 %Span (B.F.S.L.) 2 +/- 1.0% Span (5 PSIG Range) 2 +/- 0.40 % Span (All Other Standard Ranges) 2 +/- 0.75 % Span (5 PSIG Range) 2 +/- 0.
CS445 Liquid Level Sensor tubes should be inspected regularly (i.e., every two months) and historical information will help to baseline desiccant replacement requirements for a given application/climate. Absolute pressure (Non-Vented) units do not require a desiccant chamber. If the cable incorporates a vent tube, the vent tube is heat sealed at both ends prior to shipment and must remain sealed.
CS445 Liquid Level Sensor waking the sensor and issuing the aM! command. The transducer responds to the logger indicating that one measurement will be ready within two (2) seconds. Subsequent communications handle data reporting from the sensor to the datalogger. Sensor Address The CS445 is shipped from the factory with a preset SDI-12 address of 0. This can be changed using the SDI-12 command ‘aAb!’ and the suggested method is to use the SDI-12 Transparent Mode in a logger.
CS445 Liquid Level Sensor BeginProg Scan(60,Sec) ' Code for SDI-12 measurements: SDI12Recorder(Level,0M!,1,0) ‘ Call the data table: CallTable(Hourly) NextScan EndProg 5.3 Using Edlog The following is an example of the P105 SDI-12 Sensor instruction used by array-based dataloggers to interrogate an SDI-12 sensor. Use Instruction 105 to read the CS445. Your datalogger manual has a detailed explanation of Instruction 105.
CS445 Liquid Level Sensor 6. Maintenance Periodic evaluation of the desiccant is vital for keeping the vent tube dry. To assess the effectiveness of the desiccant, use one of the following: • An indicating desiccant that changes color when it’s losing its drying power • An enclosure humidity indicator such as our #6571 humidity indicator card 6.
CS445 Liquid Level Sensor 7. Troubleshooting Hints Problem: Unit will not respond when attempting serial communications. Suggestion: Check the power (Red is +V and Black is Ground ) and signal (Brown is SDI12 Data) lines to ensure proper connection to the logger. Check the logger program to ensure that the same port the SDI-12 data line is connected to is specified in the measurement instruction.
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Appendix A. SDI-12 Transparent Mode See Section 9 of the datalogger manual for more details. The datalogger must be powered up, programmed with a P105 instruction, and have the CS445 connected to it. 1. Enter terminal emulator mode in LoggerNet or PC208W software. 2. On the computer keyboard strike the Enter key a few times until the “*” datalogger telecommunications prompt appears. 3.
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Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA) PO Box 444 Thuringowa Central QLD 4812 AUSTRALIA www.campbellsci.com.au info@campbellsci.com.au Campbell Scientific do Brazil Ltda.
