Campbell Scientific CS440 User Manual
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CS440 Liquid Level Senso
Revision: 9/06
Copyright © 2006
Campbell Scientific, Inc.
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.
The customer shall assume all costs of removing, reinstalling, and shipping
defective products to CAMPBELL SCIENTIFIC, INC. CAMPBELL
SCIENTIFIC, INC. will return such products by surface carrier prepaid. This
warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products
which have been subjected to modification, misuse, neglect, accidents of
nature, or shipping damage. This warranty is in lieu of all other warranties,
expressed or implied, including warranties of merchantability or fitness for a
particular purpose. CAMPBELL SCIENTIFIC, INC. is not liable for special,
indirect, incidental, or consequential damages.
Products may not be returned without prior authorization. The following
contact information is for US and International customers residing in countries
served by Campbell Scientific, Inc. directly. Affiliate companies handle
repairs for customers within their territories. Please visit
www.campbellsci.com to determine which Campbell Scientific company
serves your country. To obtain a Returned Materials Authorization (RMA),
contact CAMPBELL SCIENTIFIC, INC., phone (435) 753-2342. After an
applications engineer determines the nature of the problem, an RMA number
will be issued. Please write this number clearly on the outside of the shipping
container. CAMPBELL SCIENTIFIC's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
CAMPBELL SCIENTIFIC, INC. does not accept collect calls.
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..............................................2
3.2 Installation Guidelines..............................................................................2
4. Wiring............................................................................3
5. Programming Example................................................4
5.1 Using ShortCut.........................................................................................4
5.2 Using CRBasic .........................................................................................4
5.3 Using Edlog..............................................................................................5
6. Maintenance.................................................................6
6.1 Every Visit, At Least Monthly..................................................................6
6.2 Every Three Months.................................................................................7
6.3 Every Two to Three Years or on a Rotating Schedule .............................7
7. Troubleshooting Hints ................................................7
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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. The CS440 is specified for
operation over the 0° – 50°C (32° – 122°F) temperature range. Standard
pressure ranges include 0 – 5, 15, 30, 50 and 100 PSIG (vented) as well as 30,
50 and 100 PSIA (non-vented).
The design uses an isolated silicon strain gauge sensor housed in a 316
Stainless Steel package to enhance reliability. The rugged construction makes
the CS440 suitable for water level measurement in irrigation applications,
water wells, lakes, streams and tanks. The cable incorporates a vent tube to
compensate for atmospheric pressure fluctuations and the jacket is made of
rugged polyurethane, designed to remain flexible and tough, even under harsh
environmental conditions.
2. Specifications
Electrical Specifications:
Excitation: 8 – 24 VDC
Operating Current: 4-20 mA
Operating Temperature Range: 0° – 60°C, nonfreezing
Pressure Measurement Specifications:
Static Accuracy: 0.1% span (B.F.S.L.)
Thermal Shift Zero: ±1.0% span
± 0.40% span
Thermal Shift Span: ±0.75% span
±0.40% span
Mechanical Construction:
Diameter: 1.0”
Length: 13” (includes Flex Seal/Strain Relief)
Sensor Element and Body: 316 Stainless
Top Cap and End Co ne Assembly: Delrin
Other wetted materials: Viton, Nylon, Buna-N
Cable:
Description: Shielded, 9 Conductor #24 AWG,
Diameter: 0.290” Nominal
Jacket: Polyurethane
Cable Resistance: 0.026 Ohm/Ft Typ., TCR: 0.3%/°C
1
2
(5 PSIG Range)
2
(All Other Standard Ranges)
2
(5 PSIG Range)
2
(All Other Standard Ranges)
Polyethylene Insulators Integral Vent Tube
1
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