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The microprocessor-controlled series AL20 of handheld meters from AQUALYTIC meets the day-to-day demands for sturdy and reliable systems for the measurement of pH value or ORP/Redox, conductivity/TDS and dissolved oxygen.

Gallery

The photos can be downloaded here in high resolution as .zip archives.

Description

The water-tight housing complies with IP67 and is equipped as standard with protective armouring and built-in electrode holder ensuring reliable operation even in extreme ambient conditions.

The support can be flipped up to hang the meter on pipes or branches. A direct, easily understood user interface, outlining the required configuration options for all three systems, facilitates meter operation both outdoors and in the laboratory. The automatic Hold function “freezes” stable measuring data in the display and indicates the presence of stable and reproducible results.

The internal memory allows storage of 20 data sets to facilitate subsequent evaluation. The integral automatic switch-off feature, varying from 1 to 120 minutes, increases the operating life of the units. The power consumption of all three units has been reduced to a minimum. As a result, the 4 x 1.5 V integrated batteries have
an operating life of up to 15000 hours, depending on the unit version.

AL20pH

• pH / redox measurement and temperature measurement (Pt1000 or NTC 30kOhm)
• Automatic temperature compensation (ATC)
• Auto Hold function
• Internal memory for 20 data sets
• Automatic buffer recognition with Tintometer standard or DIN or individual buffer
• 1, 2 and 3 point calibration
• Low battery and battery change indicator
• Sensor evaluation in the display based on the calibration result (from 10 to 100%)
• Battery operation period up to 15000 hours
• Shock-absorbing rubber protective armouring
• Waterproof

AL20Con

• Conductivity, Total Dissolved Solids (TDS), Salinity and Temperature measurement
• Dirt-insensitive up-to-date 4-pole conductivity cell offering highest precision
• Automatic temperature compensation (ATC)
• Min/Max value storage
• Internal memory for 20 data sets
• Linear and non-linear temperature compensation (EN27888)
• Calibration against standard solutions
• Low battery and battery change indicator
• Shock-absorbing rubber protective armouring
• Battery operation period up to 3000 hours
• Waterproof

AL20Oxi

• Oxygen partial pressure, Oxygen concentration, Oxygen saturation, Temperature measurement
• Automatic absolute air pressure measurement
• Auto Hold function
• Easy calibration against oxygen in air
• Salinity correction
• Self-polarising galvanic oxygen probe, allows instant measurement after the system is switched on
• Low battery and battery change indicator
• Sensor evaluation in the display
• Accessories for depth measurement
• Battery operation period up to 12000 hours
• Shock-absorbing rubber protective armouring
• Waterproof

Electrodes / measuring probes

The wide variety of high-quality electrodes and measuring probes for the series AL20 meters makes them suitable for almost any application in water analysis, industry and research. pH combination electrodes made of glass and plastic, with gel or liquid electrolyte, as well as various temperature sensors (NTC 30kOhm, Pt1000) are considered standard for modern pH meters.

Redox electrodes made of plastic with gel electrolyte and platinum tip are hardwearing and easy to use. The galvanic, membrane-covered oxygen sensor with built-in temperature sensor allows instant measurement without the need for time-consuming polarisation.

The sturdy, dirt-insensitive 4-pole conductivity measuring cell with graphite electrodes is ideal for use in industrial process and waste water analysis. The temperature range from 0…80 °C, for a short period up to 100°C, make this sensor to a practice-oriented, user friendly item.

Catalogue extract

The Catalogue extract for the AL20 Series with more information, technical data and order codes can be downloaded as a PDF »