STELZNER® agricultural measurement systems

Photometric NPK determination using the AMOLA® and mobile nutrient analysis in the field with our STELZNER® soil kit – also includes reagents and indicators for the quick test


Photometric nutrient analysis

The NANOCOLOR® 500 D digital photometer represents the next innovative step in our photometric product line. This instrument can be used for any water or waste water analysis task and is perfectly suited to meet the present and future requirements of our customers. The NANOCOLOR can be used in industrial or municipal waste water management, drinking water supply, ground water, surface water, coolant water and boiler water systems, and soil analysis. The state-of-the-art illuminated graphical display is menu driven and capable of clearly displaying all key information (including date/time, sample number, etc.). The display also shows when measurements do not lie within the specified measurement ranges. Measurements that exceed the measurement range can be queried in order to evaluate the dilution used.


The auto-save function can be turned on and off in the configuration menu. Up to 3000 on-site measurements can be made using the heavy-duty integrated high-power battery with charge controller. The unit can also be continuously operated under 220/110 VAC. A battery-status icon is shown on the display. The photometer has a power-saver mode where it can be set to shut-off automatically when not used (for either 10, 20 or 120 minutes). The analysis routine is made simple and easy with the integrated laser scanner which is used for fully-automatic instant cuvette detection. Round cuvettes (14-mm ID) and rectangular cuvettes (10, 20 and 50 mm) can be used without any adapters. One of ten languages can be selected in the configuration menu.

30001850 All-purpose photometer NANOCOLOR® 500 D Request Price
Including software CD, operations manual, dust cover, power supply unit, data cable, USB cable and calibration cuvette cell in a sturdy travel case.
Art.-Nr. Article Accessories Cart
30001803 Digital cylinder-stroke pipette 0.2 to 1.0 ml, adjustable Request Price
with tip ejection mechanism
30001804 Blue plastic tips for cylinder-stroke pipette no. 1860, 1803 Request Price
100 pieces
30001808 Digital cylinder-stroke pipette 1.0 to 5.0 ml, adjustable Request Price
with tip ejection mechanism
30001809 Transparent plastic tips for cylinder-stroke pipette no. 1808 Request Price
100 pieces
30001810 Nitrate NO3-N, 0.3 to 22 mg/l Request Price
20 per package
30001812 Ammonium NO4-N, 1 to 40 mg/l Request Price
20 per package
30001813 Phosphate P205, 10 to 50 mg/l Request Price
19 per per package
30001814 Potassium K, 2 to 50 mg/l Request Price
20 per package
30001815 Magnesium Mg, 5 to 50 mg/l , Calcium Ca, 10 to 100 mg/l Request Price
20 per package
30001817 Iron Fe, 0.1 to 3.0 mg/l Request Price
20 per package
30001818 Copper Cu, 0.1 to 7.0 mg/l Request Price
20 per package
30001819 Zinc Zn, 0.1 to 4.0 mg/l Request Price
20 per package
30001820 Molybdenum Mo, 1.0 to 40 mg/l € 82,11
20 per package
30001821 Manganese Mn, 0.1 to 10 mg/l Request Price
20 per package
30001822 Chloride Cl, 0.5 to 50 mg/l Request Price
20 per package
30001823 Sulphate SO4, 10 to 200 mg/l Request Price
20 per package
30001851 Stand for 15 round cuvettes and 2 extraction vessels Request Price
30001860 Cylinder-stroke pipette, 0.2 to 1.0 ml, adjustable Request Price
with tip ejection mechanism
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Type: Microprocessor controlled beam-filter photometer:
auto-test and auto-calibration functions;
    wavelength range: 340 to 860 nm
Lenses: automatic filter wheel with 10 interference filters

345 / 365 / 436 / 470 / 520 / 540 /
585 / 620 / 690 / 800 nm plus
2 compartments for extra filters

Accuracy: ± 2 nm, half-width 10 to 12 nm
Light source: Tungsten spotlight lamp
Detector: silicium photocell
Zero compensation: automatic
Measuring modes: over 100 pre-programmed tests,
99 user-programmable methods absorbance,
transmission, factor, kinetic, 2-point calibration
Measuring range: approx. 3 E, unsigned
Accuracy: ± 1 %
Long-term stability: < 0,002 E/h
Cuvette holder:

Round cuvettes with 14 mm inner
diameter; rectangular cuvettes: 10, 20, 50 mm

Data memory: 500 measurement records, GLP-compliant
Display: graphical back-lit display,        
64 x 128 pixels, 10 languages
Usage: bar codes , display menu,
membrane keypad
Interfaces:    USB 1.1 and bi-directional RS-232 serial ports
Update: via Internet / PC
Operating range: 0 to +50 °C, to 90 % rel. humidity
Power supply:   

100 to 240 VAC, 50/60 Hz / 6 VDC, 3.2 Ah
via built-in rechargeable battery with charge controller
and power supply unit

Dimensions and weight: 227 x 282 x 105 mm, 2.4 kg

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