Analytical Technology has released a portable Q45H/62 Residual Chlorine Monitor.
The battery-powered monitor allows online control of chlorination systems without the use of reagents or mains power and enables installation directly into water and wastewater networks.
The Q45H/62 monitor is available in two versions - a free chlorine monitor for drinking and cooling water systems and a combined chlorine monitor ideally suited for chloraminated drinking water.
The new portable Q45H/62 monitor can be installed close to point of use, allowing precise measurement of chlorine levels.
Unlike traditional colorimetric and most amperometric monitors, Analytical Technology's Q45H/62 system uses a membrane-covered polarographic sensor which does not require the addition of chemical reagents.
The sensor contained in the new portable chlorine monitor has a response time of up to 10 times higher than that of conventional sensors, enabling the monitor to carry out reagent-free chlorine measurements for most pH values found in the UK water industry.
For applications with variable pH values, the new portable monitor has an optional pH compensation feature to eliminate free chlorine error caused by process pH drift.
When the correct sensor is used, there is an extended response to chlorine at high pH levels, allowing pH correction to be employed over a much wider range.
The long-life battery contained in the monitor enables implementation even where no external power is available, meaning it is ideally suited for water survey measurements and network monitoring.
The portable monitor requires no additional plumbing and is provided in a shock-proof, water-resistant casing.
It has quick release push fittings and self-sealing valves, keeping the sensor wetted when not in use.
The monitor is available with two data logging options, the simplest of these being a logger that downloads data to computer via a cable.
Analytical Technology also offers data logging via a GSM system which uploads data to a secure website for download from anywhere with an internet connection.
