Hanna HI781-11 Marine nitrate low range

Hanna HI781-11 Marine nitrate low range

The Hanna HI781-11 Calibration Check Set is designed to validate the performance of the HI781 Marine Nitrate Low Range Checker® HC. This high-quality set of standards allows users to verify the accuracy of their instrument to ensure reliable results in low-range nitrate testing for seawater applications.

Manufactured in Hanna’s ISO-certified facility, each set includes sealed standards and a Certificate of Analysis (COA) that provides essential traceability, including lot number, reference values, and expiration date.

Key Features:

• Designed for HI781 Marine Nitrate Checker: Ensures full compatibility and easy validation of performance.

• Certified Accuracy: Comes with a COA for professional-level traceability and quality assurance.

• Quick Instrument Validation: Includes one cuvette with zero nitrate and one cuvette with a known standard to verify accuracy.

• Manufactured to High Standards: Prepared using reagent-grade chemicals in a temperature-controlled environment.

Technical Specifications (Checker Reference):

• Measurement Range:
  – 0.00 to 5.00 ppm (as NO₃⁻)
  – 0.0 to 50.0 ppm (calculated, using dilution)

• Resolution: 0.01 ppm

• Accuracy (@25°C):
  – ±0.25 ppm ±2% of reading
  – ±2.5 ppm ±5% of calculated reading (with dilution)

• Light Source: LED @ 525 nm

• Light Detector: Silicon photocell

• Method: Colorimetric—reaction with nitrate produces a pink/violet tint

• Battery Type: 1 x 1.5V AAA

• Auto-Off: After 10 minutes of inactivity

• Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing

• Dimensions: 86 x 61 x 37.5 mm (3.4 x 2.4 x 1.5 in)

• Weight: 64 g (2.3 oz)

Ideal Applications:

• Reef and Saltwater Aquariums: Regular nitrate monitoring helps prevent algae blooms and supports coral health.

• Marine Aquaculture: Ensures safe nitrate levels for breeding and livestock.

• Marine Research: Ideal for labs and environmental monitoring programs.