Hach Lange has announced a further suite of Intellical sensors for use with its HQd digital water-quality meters.
As a result, users will be able to swap sensors quickly and easily for the measurement of six key parameters (BOD, conductivity, DO, ORP, pH and sodium).
Rugged sensors with a choice of cable length (from 1-30m) are available for some parameters, in addition to versions to suit challenging conditions, such as low ionic-strength water.
All Intellical probes interchange fully with a single HQd meter, which recognises both the probe and its calibration history.
Operation of the HQd meters is simplified with a large illuminated graphic display that quickly guides users through the measurement procedure.
The operator and sample names are displayed and recorded.
The meter gives visual and audio indication of stable readings.
It can even remind users when calibration is due, so the need for operator training is minimal.
The dissolved oxygen and BOD probes feature Hach Lange's LDO technology (luminescent dissolved oxygen) which means no frequent electrolyte or membrane replacement is necessary, just an annual change of sensor cap.
Hach Lange is currently running a promotion for UK customers that already own an HQd meter: until 1 September 2009 they will receive a 50 per cent discount on an HQd Firmware Kit, which updates the unit to the latest version and enables easier data download to a PC.