HQD - Digital Electrochemistry Confidence in pH, O2, conductivity, redox The system: pH, cond. and O2 - reliable, flexible, simpler than ever INTELLICAL Electrodes - Mix + Match Principle Turn around the HQD! Clear messages HQD for outdoor application. Determination of oxygen without calibration and electrolyte! According to your request: HACH LANGE Service

HQD with INTELLICAL electrodes

High Quality Digital - HQD means complete, coordinated, stable meters with practical accessories and intelligent electrodes. What makes HQD special is the newly developed INTELLICAL electrodes, which store all relevant characteristic parameters in digital form.

"Our customers need reliable results in the shortest time possible. So we asked ourselves how unnecessary, time-consuming, calibration could be avoided. Our development team came up with an innovative answer in the form of digital electrodes, which save their own calibration data. They are calibrated once, in the central laboratory. They can be used in totally different locations without having to repeat the calibration each time they are used with a different meter. Genuine Mix + Match!"

Melissa Aquino product manager, Düsseldorf

Digital INTELLICAL electrodes and metes are geared to each other and are interchargeable (Mix + Match principle).

Digital INTELLICAL electrodes are recognised automatically.

The calibration data is stored in the INTELLICAL electrodes, and the control intervals can be programmed to enable application - specific status checks.

All INTELLICAL electrodes with integrated temperature sensor.

Discover HACH LANGE's world first in water analysis. The innovative DIGITAL e-chem products combine optimum handling and flexibility with reliability that can't be achieved by analogue techniques. Experience the HQD in the 3D animation!

HQD - click and move

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The HQD communicates clearly! This was a priority for HACH LANGE. Clear, legible text on the illuminated display. The intuitive menu structure is easily user friendly and ensures smooth, error-free handling.

Buffer and standard solutions for HQD

Calibration? HQD reminds you! Reliable pH readings are now very simple. You set the interval between calibrations to suit your own situation. HQD reminds you when recalibration is due. Furthermore, you can do also define the calibration quality by enterig requirements with regard to the slope. All the necessary information about each reading is automatically saved.

The INTELLICAL electrodes are available as stainless steel for outdoor purposes, which remain intact even under the most trying conditions. Cables of up to 30 m in length enable digital data transmission from previously inaccessible measurement locations, e.g. lakes, boreholes and bridges - even for pH.

INTELLICAL Outdoor electrode

The new measurement principle has revolutionised oxygen measurement. LDO stands for Luminescent Dissolved Oxygen. Instead of frequent calibration and electrolyte replacement, you simply change the sensor cap once eacd year. Using LDO saves time and money.

pH range: 0-14 resolution (selectable): 0.1/0.01/0.001 accuracy: 0.1 temp. compensation: automatic automatic buffer recognition ORP: ±1500 mV resolution: 0.1 accuracy: ±0.1 mV

conductivity: 0,01 µS/cm-200 mS/cm resolution: max. 5 figures accuracy: ±0.5% temp. compensation: non linear resistivity: 2.5 Ω cm-49 Ω cm resolution: max. 5 figures accuracy: ±0,5% TDS: 0.0-50.0 mg/l resolution: max. 3 figures accuracy: ±0.5 in the range salinity: 0-42 (g/kg, ‰) resolution: up to 0.01 ppt accuracy: ±0.1 mg/l at < 8 mg/l

HQ 14D for conductivity

pH + ORP according HQ 11D conductivity, resistivity, TDS, salinity according HQ 14 D additional: dissolved oxygen (LDO): 0.00-20.0 mg/l; 0-200 % resolution: 0.01 oder 0.1 % saturation accuracy: ±1 % of measuring range

pH + ORP wie HQ 11D conductivity: 0.01 µS/cm-400 mS/cm resistivity, TDS, salinity according HQ 30 D additional: dissolved oxygen (LDO): 0.00-20.0 mg/l; 0-200 % resolution: 0.01 oder 0.1 % saturation accuracy: ±1 % of measuring range ion concentration ISE range depends on the elecrode USB port

HQ 40D FLEXI for O2, pH, conductivity, ISE

Experience the HQD in the 3D animation!

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Ordering information and advice: +49 (0) 21105288-0.

Quality assurance, complete with standard solutions, instrument checks and test solutions.

Seminars and workshops: further training and exchange of experience for anlaysis in practice.

Reliable operation of all instruments thanks to flexile service and maintenance contacts.

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