Campbell Scientific Ltd., Campbell Park, 80 Hathern Road, Shepshed, Leicestershire,LE129RP,UK

Tel: +44 (0) 1509 601141 Fax: +44 (0) 1509 601091 Email: sales@campbellsci.co.uk

www.campbellsci.co.uk

CS547A Conductivity and

Temperature Probe

For measurement of electrical conductivity, dissolved solids

and temperature in fresh water

Description

The Campbell Scientific CS547A

probe with the A547 Interface

measures the electrical conductivity

(EC) and temperature of water. EC

is measured by three passivated

cylindrical electrodes isolated from

DC with capacitors. Temperature is

sensed with a thermistor.

The CS547A is easy to clean and

resistant to corrosion. It has

rounded ends to facilitate installation

and removal.

Dissolved solids can be estimated

from conductivity measurements

using empirical conversion factors.

For ground water applications, an

optional weight and a split mesh

cable grip are recommended for

cables over 30m.

For correct operation there must be

a flow of water through the sensor

body.

The A547 Interface contains the

required completion resistors and

CS547A

Standard probe;

please specify

cable length.*

A547

Interface containing

completion resistors for use

with the CS547.

A weight and split mesh strain relief

sleeve are available as options.

*In all cases, please specify the cable

length required in metres (maximum

300).

Ordering Information

July 2009

Key Features

On-line calculation of

electrical conductivity

Direct connection to

datalogger

Cable length up to

300m

Can be used with

multiplexers

Typical

Applications

Calculation of stream

discharge rate

Water quality

monitoring

Tracking of water-borne

pollutants in aquifers

CS547A Probe

CSL 424

blocking capacitors – the probe can

be used with a AM16/32B

multiplexer and one A547.

Compatibility

The output of the CS547A can be

measured by all current Campbell

Scientific dataloggers (except the

CR200 series). The conductivity and

temperature measurements require

a differential and single-ended input,

respectively. Two separate excitation

channels are also needed.

A547 Interface