38 Water/Wastewater Reduce Water Consumption and Improve Process Efficiencies
The compact Minichiller® from HUBER (Germany) reduces water consumption to zero, offering a low cost, chilled water supply with environmentally friendly refrigeration for a variety of laboratory applications.
With the ever rising cost and environmental impact of waste water, Scientists and Facility Managers are increasingly looking for alternative ways of cooling applications in the laboratory. A calculation, based on water consumption, shows that in a working week (8-hours a day, 5 days a week), the Minichiller® months.
saves approximately 48,000 litres of water, and as the Minichiller® The compact Minichiller® is designed as a space saving tower and with a footprint of just 225 x 360mm the Huber Minichiller® than many laptops. With a temperature range of -20 to +40°C and cooling capacity of 300 watts at 15°C, Minichillers® is low in cost, it offers a fast return on investment which can be measured in takes up less bench space are ideal for cooling reaction blocks,
vapour traps, vacuum pump condensers, rotary evaporators or heat exchangers, supplying predictable and correct pressure, flow and temperature to applications resulting in tangible process efficiencies.
features an easy to use Microprocessor control with a large temperature display. Alternatively for applications requiring more functionality the controller can be supplied as an "Advanced" version which includes an RS232 interface and an external Pt100 sensor connection. Additionally the units are equipped with a level indicator, sight glass as well as status LED’s for pump, cooling and heating. The Minichiller®
The Minichiller® is also available
with 1kW heating power which extends the temperature range to 100°C. Minichillers®
use natural refrigerants. To find out more about the Minichiller® and how it could reduce your water consumption and save you money please visit
www.huber-online.com Reader Reply Card no 135
Two-Parameter Transmitter Can Replace Two Single-Parameter Transmitters in Analytical Sensing Applications
Endress+Hauser (Germany) introduces the Liquiline CM442, a four-wire, two-parameter transmitter for analytical sensing applications. The Liquiline transmitter accepts data from two sensors and measures any combination of various parameters including but not limited to turbidity/suspended solids, nitrate, SAC (UV254), ISE, dissolved oxygen, pH/ORP, chlorine, concentration and conductivity.
Instead of using two single-parameter transmitters to measure two process variables, users can employ a single Liquiline. This saves money because only one instrument has to be purchased, installed and maintained. It also saves space, and it results in a simpler analytical sensing system.
The CM442 Liquiline transmitter accepts any two Memosens sensor inputs, each with true hot plug-and-play capabilities via a digital interface link. This allows users to interchange sensors at will with immediate sensor recognition. Users can quickly and easily remove and replace each sensor for calibration, diagnostic and other purposes.
For example, if data from any sensor is questionable, it can be replaced with a pre-calibrated sensor. The questionable unit can then be recalibrated and tested in an environmentally controlled location such as a laboratory. Data stored in each Memosens sensor is automatically recognized via the Liquiline hot plug-and-play feature, and simple rapid mechanical installation is provided via an optional M12 connector.
The digital interface link between the Liquiline transmitter and each Memosens sensor allows high-speed two-way communication of various parameters including measured variable, calibration data, sensor diagnostic data and sensor recognition data.
The Liquiline is powered by 100-230Vac 50/60 Hz, 24Vac 50/60 Hz, or 24Vdc. It conforms to Type 4X (IP66/IP67) and is NRTL certified for conformance to UL standard 61010-1 for installation in appropriate environments. It also has a single alarm output, two 4-20mA analog outputs, and a backlit display. Liquiline transmitters can be upgraded to include features such as additional sensors and outputs—or communication options including Profibus, Foundation Fieldbus or Ethernet.
An SD card is provided to transfer setup and other data from one Liquiline transmitter to another. This feature allows quick transmitter change out in the event of a problem, and it also allows multiple Liquiline transmitters to manually share programming data from a master transmitter. In addition, the SD card provides a convenient means to store and transfer data collected by the transmitter to a PC.
Reader Reply Card no 136 New Water Quality Sensors
ITT Analytics (USA) announce it is introducing two new water quality sensors, the WQ-FDO Optical Dissolved Oxygen Sensor and the WQ-Cond Conductivity Sensor.
“These sensors allow our customers to meet their strict water quality regulatory requirements using the best and most reliable technology available” states Ted Helms, Global Water Marketing Manager.
The WQ-FDO optical dissolved oxygen (DO) sensor features include fast and precise optical DO measurements, a proven green light technology for long operational life, and a beveled membrane that minimises interference caused by air bubbles. Additionally the sensor is simple to operate and features low power consumption and maintenance. The sensor has dual 4-20 milli-amps (mA) output for partial pressure and temperature, which can be easily integrated into an existing or new monitoring system. Optional stainless steel or plastic armor is available to protect the sensor in harsh environments.
The WQ-Cond sensor features include fully encapsulated electronics that will measure conductivity in water up to 82 feet deep. Additional enhancements include a measurement range of up to two Siemens per centimeter and a separate 4-20mA temperature output. Like the WQ-FDO optional armor is available to protect the conductivity sensor as well.
Reader Reply Card no 137 are available as both water and air-cooled units and with standard or advanced functionality. All units are CFC and H-CFC free and
For immediate information on products featured in this issue, please email us today!
info@iet-pub.com Reader Reply Card no 138 IET November/December 2010
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