HI749 hexavalent chromium LR Tintometer is a handheld Tintometer designed by HANNA brand for specific range chromium concentration measurement. It is compact in appearance, easy to use and high in accuracy.
Features
1. LED Illuminant has better performance and higher luminous efficiency than traditional tungsten lamps, and can use less energy to provide stable Illuminant; 2. LED can ignore its own heat to avoid high temperature affecting electronic product Stability; 3. With CAL CheckTM function, allowing performance verification and calibrating using NIST traceability standards; 4. CAL CheckTM NIST Linear dispersion calibration group can simulate the specific Absorbance value of each wavelength to verify the accuracy of subsequent readings.
Principle
LED Illuminant @525nm, by diphenylcarbazide method for measurement, with reference to the ATSM D1687-92 standard method.
Applications
Hexavalent chromium concentration measurement
Standards
ATSM D1687-92
Steps
1. Use HI749-25 to purchase Reagent; 2. Use HI749-11 calibration group to calibrate; 3. Perform sample measurement; 4. The instrument automatically shuts down after ten minutes of no operation.
Notice
• Measurement range of 0~ 300 ppb, resolution of 1 ppb, accuracy of +/- 2 ppb +/- 4% of the reading; • Required to use the specified optional Reagent and calibration group; • The instrument has an automatic shutdown function, and it will be turned off after ten minutes of no operation.
Measurement Range 0 to 300 ppb
resolution 1 ppb
accuracy +/- 2 ppb +/- 4% of the reading
Illuminant LED @525nm
Automatic shutdown No operation after ten minutes
Measuring method Refer to ATSM, D 1687-92, diphenylcarbazide method
Purchase Reagent HI749-25
calibration group HI749-11
[Q] Is the price listed on the website the final cost for overseas purchases?
[A] No, it isn't. This is the ex-factory price of the product in the Chinese Mainland. In addition to this price, buyers from different countries need to account for additional costs such as shipping fees, tariffs, and others. For specific regional quotes, please consult our customer service or fill out a quotation form.
[Q] What is the specific process for purchasing the product?
[A] First, please click on the quotation form on the website and fill in detailed information. Our customer service personnel will then send you a quotation based on your specific country and region, confirming payment and delivery methods. Following this, we proceed with contract signing, payment, and shipment. You can then await delivery.
[Q] What should I do if the instrument I purchase needs repair?
[A] After-sales repair for overseas instruments is an unavoidable issue. Our repair terms stipulate that the sender is responsible for the shipping and insurance costs incurred for the repair. Repairs within the warranty period are free, while repair costs beyond the warranty period are determined based on the actual situation.
