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เครื่องมือวัดค่าการดูดกลืนแสง Nutrient Analyses Grow Master Basic Benchtop Photometer

HI 83215-2008 Series

Grow Master Basic for Nutrient Analyses

          HI 83215 is designed for the hydroponics and greenhouse industries to measure nutrients Commonly present in fertilizer enriched solutions. This photometer measures ammonia, phosphorus, nitrate and potassium in three distinct ranges of low, medium and high concentrations. This way accuracy is maximized for each nutrient and for every concentration. Due to simplicity of operation, you no longer need to send off your samples and then wait for the results to come back. With the HI 83215, you can test the presence and strength of nutrients right on the spot.

This can translate itself into a substantial saving and improved yield over a period of time. The internal microprocessor provides high accuracy and simplifies operations to the degree that even non-technical operators can use this meter. The meter is supplied with most accessories. Reagents are necessary and sold separately. All numbers listed are for 100 tests unless otherwise noted. HI 83215 runs on batteries as well as a 12Vdc adapter and is supplied with both. Add to this the unit’s light weight and you have a bench meter that is just at home in the field and the horticulturist’s lab.

Order Information:
HI 83215 is supplied with measuring cuvets (4), batteries, 12 Vdc adapter and instructions. HI 83215C kit version includes HI 83215 and accessories comprised of: rugged carrying case, 100 mL and 170 mL beaker, 60 mL and 5 mL syringes, 1 filter-holder and 25 filters, 100 mL cylinder, demineralizer bottle, 2 pipettes, 1.5 mL spoon and active carbon for 50 tests.


Range   0 to 100 mg/L
Resolution   1 mg/L
Accuracy   ±1 mg/L ±4% of reading at 25 °C
Typical EMC   ±1 mg/L
Light Source   Tungsten lamp with narrow band interference filter @ 420 nm
Method   Adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample.

Multi Parameter Specifications




Reagent Code
Ammonia HR 0 to 100 mg/L (ppm) Nessler HI 93715-01
Ammonia LR 0.0 to 10.0 mg/L (ppm) Nessler HI 93715-01
Ammonia MR 0.0 to 50.0 mg/L (ppm) Nessler HI 93715-01
Nitrate HR 0 to 300 mg/L (ppm) Cadmium Reduction HI 93728-01
Nitrate LR 0.0 to 30.0 mg/L (ppm) Cadmium Reduction HI 93728-01
Nitrate MR 0 to 150 mg/L (ppm) Cadmium Reduction HI 93728-01
Phosphorus HR 0 to 100 mg/L (ppm) Amino Acid HI 93706-01
Phosphorus LR 0.0 to 10.0 mg/L (ppm) Amino Acid HI 93706-01
Phosphorus MR 0.0 to 50.0 mg/L (ppm) Amino Acid HI 93706-01
Potassium HR 20 to 200 mg/L (ppm) Turbidimetric HI 93750-01
Potassium LR 0.0 to 20.0 mg/L (ppm) Turbidimetric HI 93750-01
Potassium MR 10 to 100 mg/L (ppm) Turbidimetric HI 93750-01


HI 83215K HI 83215K Accessory kit
Reagents & Standards
HI 93715-01 Ammonia MR, Nessler Method (100 Tests)
HI 93728-01 Nitrate, Cadmium Reduction Method (100 Tests)
HI 93706-01 Phosphorous, amino acid method (100 Tests)
HI 93750-01 Potassium, Turbidimetric Method (100 Tests)


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