Environmental & Water Quality Testing
Digital Water Multi-Parameter Tester
A four-wavelength photometric tester for ammonia nitrogen, COD and total phosphorus, with built-in calibration curves and GLP data storage.
Product Identification
| Brand | StarBrain |
|---|---|
| Model | STBAT-401 |
| Country of origin | China |
| Country of manufacturing | China |
Product image is taken from the original StarBrain specification document. Final appearance and component arrangement are subject to confirmed specifications.
Product Overview
4 LED wavelengthsCOD / NH3-N / TPIP65Smart-Read
Main feature
- Built-in four LED light sources of 420nm, 470nm, 620nm and 700nm, long life and high precision.
- Support single-point and multi-point calibration, allowing users to edit calibration curves.
- Supports two measurement methods: absorbance and concentration.
- Support two reading modes: Smart-Read function (smart judging end point), Cont-Read function (continuous measurement).
- Each test item can store 200 sets of measurement results, conform to the GLP specification, and support data review, deletion and printing.
- IP65 protection grade, good waterproof and dustproof performance.
- Support firmware upgrade, support for factory reset, and allow for function expansion and application expansion.
Specification
- Wavelength: 420nm; 470nm; 620nm; 700nm.
Measuring range
- Ammonia nitrogen: (0.000 ~ 4.000) mg / L, can be extended to (0.000 ~ 300.00) mg / L.
- Low concentration COD: (0.0~150.0)mg/L.
- High concentration COD: (150~1500)mg/L.
- Total phosphorus: (0.000~1.000)mg/L, can be extended to (0.000~25.00)mg/L.
Basic error
- Ammonia nitrogen: ±10%.
- Low concentration COD: ±8%.
- High concentration COD: ±8%.
- Total phosphorus: ±10%.
Repeatability
- Ammonia nitrogen: ±3%.
- Low concentration COD: ±3%.
- High concentration COD: ±3%.
- Total phosphorus: ±3%.
Stability
- Ammonia nitrogen: The change of ammonia nitrogen concentration within 20min should be less than 0.200mg/L.
- Low concentration COD: The change of COD value within 20min should be less than 6mg/L.
- High concentration COD: The change of COD value within 20min should be less than 6mg/L.
- Total phosphorus: The change of total phosphorus concentration within 20min should be less than 0.050mg/L.
- Power Supply: AA Battery or 5V DC 1A.