Campbell Scientific CRS451/CRS456 Submersible Water-Level Recording Sensor - Manual (Page 7)

CRS451/CRS456 Submersible
Water-Level Recording Sensor
1. Introduction
The CRS451 consists of a water-level and water-temperature sensor that has its
own time clock and memory to store the collected data, in a compact stainless-
steel case. This frees users to place the sensor in remote sites and let it collect
data for long periods of time. The CRS451/CRS456 supports standard time-
based scanning and recording along with event-based recording based on water
level change (Delta) or logarithmic time sequence for pump and slug tests.
HydroSci software is included and supports test set up, data retrieval, and data
display.
The CRS451 has a 316L stainless-steel case that can be submerged in most
canals, wells, ponds, lakes, and streams. The CRS456 has a rugged titanium
case that allows it to be used in saltwater or other harsh environments.
Before using the CRS451/CRS456, please study:
• Section 2, Cautionary Statements
• Section 3, Initial Inspection
• Section 6, Installation
2. Cautionary Statements
• The CRS451/CRS456 will be damaged if encased in frozen liquid (see
Section 6.2, Avoiding Freezing Conditions, for more information).
• Although the CRS451/CRS456 is a rugged and reliable device, it is also a
highly precise scientific instrument and should be handled as such.
• Dropping the instrument or allowing it to “free fall” down a well may
damage the transducer.
• Confirm the compatibility of the instrument to non-water environments
before installation.
• The CRS456 should be used in harsh water applications, including salt
water.
3. Initial Inspection and Handling Guidelines
• Upon receipt of the CRS451/CRS456, inspect the packaging for any signs
of shipping damage. File damage claims with the shipping company.
• Immediately check package contents against the shipping documentation
(see Section 3.1, Ships With). Contact Campbell Scientific with any
discrepancies.
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