CS440 Liquid Level Sensor Revision: 9/06 C o p y r i g h t © 2 0 0 6 C a m p b e l l S c i e n t i f i c , I n c .
Warranty and Assistance The CS440 LIQUID LEVEL SENSOR is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective products.
CS440 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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CS440 Liquid Level Sensor 1. Introduction This manual describes using the CS440, ACData Solutions’ SPXD-500 submersible pressure transducer with Campbell Scientific dataloggers. Information provided in the manual includes datalogger-to-sensor connection, datalogger programming, and maintenance requirements. The CS440 Submersible Pressure Transducer is designed to provide reliable, accurate water pressure/level measurements.
CS440 Liquid Level Sensor Notes: 1. Includes Linearity, Repeatability and Pressure Hysteresis at 25 °C. 2. 0 – 50 °C, Referenced to 25°C. Specifications subject to change without notice. 3. Installation 3.1 Initial Inspection and Handling Guidelines Upon receipt of the CS440, inspect the packaging for any signs of shipping damage and, if found, report the damage to the carrier in accordance with policy.
CS440 Liquid Level Sensor Although the cable jacket is made from a thick, tough polyurethane formation, care should be taken to avoid cable damage. Further, sharp bends or excessive pinching of the cable can cause damage and may pinch off the vent tube causing measurement errors in the case of gauge pressure (vented) devices. Do not drop the instrument or allow it to “free fall” down a well as this may damage the device. Never attempt to disassemble the transducer as this will void the warranty. 4.
CS440 Liquid Level Sensor IMPORTANT: Current measurements such as 4-20 mA signals vary widely in how they can be powered and connected to a datalogger. Please refer to the CURS100 manual or the Application Note 2MI-B. 5. Programming Example 5.1 Using ShortCut ShortCut is the easiest and typically the preferred method for programming the datalogger. ShortCut generates a wiring diagram that shows how to connect the pressure transducer to your datalogger.
CS440 Liquid Level Sensor Multiplier and Offset The Multiplier and Offset can be changed to scale the result or perform unit conversions. The VoltSE instruction measures mVolts.
CS440 Liquid Level Sensor After this command is executed, the input location within the logger called “Level” holds the measured pressure, reported in PSI. This result may be further processed within the logger or stored to final storage memory. Multiplier and Offset The Multiplier and Offset can be changed to scale the result or perform unit conversions. The P2 instruction measures mVolts.
CS440 Liquid Level Sensor NOTE • Check battery condition (physical and *6 mode of the datalogger) • Check all sensor readings (*6 mode of the datalogger); adjust transducer offsets if necessary • Check recent data (*7 mode of the datalogger) • Perform routine maintenance suggested by manufacturers See datalogger manual for more information on *6 and *7 modes. 6.
CS440 Liquid Level Sensor Suggestion: A kinked or plugged vent tube will not effectively vent a gauge pressure (vented) type of device. Normal changes in barometric pressure will appear as water level fluctuations and these types of errors are typically on the order of 1 foot of water level. If the desiccant chamber has not been properly maintained, water may have condensed in the vent tube and the device should be returned to the factory for service.
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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 cleroux@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.
