Weight:
45 g (2 oz)
Temperature rating:
–15 to 50 °C
7. Installation
If you are programming your data logger with
Short Cut
, skip
(p. 8) and
Short Cut
does this work for you. See
(p. 1) for a
Short Cut
tutorial.
7.1 Site selection
The CS574A measures the EC of water inside the hole running through the sensor, so detection
of rapid changes in EC requires the probe be flushed continuously. To do this in flowing streams,
simply orient the sensor parallel to the direction of flow. In stilling wells and ground wells,
however, diffusion rate of ions limits the response time.
7.2 Mounting
The housing and sensor cable are made of water impervious, durable materials. Mount the probe
so that it avoids contact with abrasives and moving objects. Because of slight positive buoyancy,
either secure the sensor to a fixed or retractable object or use the weighted cable option.
The split mesh strain relief sleeve on the cable can minimize strain. The split mesh sleeve is
recommended for cable lengths over 30 m (100 ft).
The A547 interface is usually mounted in the data logger enclosure.
7.3 Wiring
Wiring is shown in
WARNING:
Wire the conductivity excitation and temperature excitation lines in different excitation ports
or measurement errors will occur. If multiple CS574A/A547s are wired to one data logger,
each conductivity excitation must use a separate excitation port. However, you can wire
multiple temperature excitation lines into the same excitation port.
CS574A Conductivity and Temperature Probe and A547 Interface
8
