Homepage | About PDS | Contact PDS | Sales Enquiry | Support Enquiry | Technical | Downloads | Business/Careers | Site map

Water

· · · · · · · · · · · · · · · · ·· · · · · ·· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

Water quality stations

Portable water monitors

Water quality sensors

Weather

Automatic weather stations

· · · · · · · · · · · · · · · · ·· · · · · ·· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·Weather sensors

Hand held meters

Air and Gas analysis

Indoor air quality

Flue & vehicle emissions

Dust monitoring

Data acquisition

dataTaker loggers

HACCP & temp loggers

Environmental monitors

Graphtec loggers

Systems & applications

Health and Safety

Breath alcohol detection

Speed awareness signs

Rugged PC's

GDI Rugged GoBooks

Water Quality Sensors

What water quality sensors are best for your application?

Whether you want to measure the normal water quality parameters such as pH, DO or EC etc. or more specialized parameters such as ammonium, ozone, or underwater UV etc., we can help you choose the right water quality sensor.

There are a number of choices when it comes to sensor selection. Cost is a major prohibitory factor in many applications but choosing less expensive options may increase maintenance and replacement costs in the long run.

This section will be outlining the benefits on the 2 levels of sensors on offer as well as the advantages and disadvantages to multi-sensor sondes (probes) and single sensor probes.

The multi-sensor sondes are only applicable to the standard water quality range and are not available in the premium quality sensors.

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

Sensor qualities

Standard water quality range - STANDARD SENSORS

These sensors are of good quality and functionality. They are less expensive then the premium range sensors and are used by many councils and government departments for waste water monitoring and general parameter monitoring of DO, EC, pH etc.

The main difference in the quality of the sensors will be noticed over time. The standard sensor range requires a higher maintenance regime and the replacement interval (although far between) is less.

This range of sensors also covers any of the optional monitoring parameters such as ammonium, nitrates etc.

Premium water quality range - PREMIUM SENSORS

Although the sensors are more expensive initially, the on going costs become lower as maintenance and replacements are less.

This range of sensors also covers the optional monitoring parameters such as ammonium, nitrates etc.

Cleaning heads and many other options are available for these sensors enabling even longer maintenance intervals.

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

Single parameter vs Multi parameter

There are two types of sensor construction to consider when measuring water parameters;

1. A single sonde (probe) housing for DO, pH, Salinity (EC) & Temperature or

2. Multiple probes for each of the parameters.

There are advantages and disadvantages to both designs and this must be taken into consideration when selecting the probe setup.

Single sonde

► The single sondes are less expensive then separate probes.

Only one set of cables means the cabling to and from the station is cheaper

Only one sensor housing means manufacturing costs are lower.

► The sensor housing is a smaller diameter.

All the sensors are in one housing so the dimensions are smaller than that of four separate probes.

► Mounting of the sonde is easier.

Multiple probes

► Easier maintenance and repair.

If one parameter/probe is faulty, removal of the probe means only loosing the reading corresponding to

that probe and not all the probes. If you are using a single sonde then if one parameter is faulty then you

have to remove the sonde and all readings are lost.

► Easily move probes from one pond to another without needing to move all parameters.

Sub category:

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

Category Downloads:

PDS In-Situ Water Quality Station brochure

Ponsel portable water quality monitor brochure

Ponsel portable water quality monitor manual