TONGAO TR-205H Total Chromium (Chromium Ion) Tester
Detect the total chromium content, the range is 0.01mg/L-5mg/L (measured in sections), the digestion is 30min in a Water Bath at 125 ℃, and the detection time is 45-55 minutes. The digestion Colorimetric integrated detection is used, which conforms to the GB7466-87 standard.
TongAo-
HANNA HI97740 Nickel LR Portable Photometer
$ 540.00 -
HANNA HI3148B ORP electrode Glass body
$ 520.00 -
LEICI DO-957 dissolved Oxygen electrode
$ 180.00 -
YUEFENG SZ8127 multiparameter STIP-scan can measure 11 kinds of water quality parameters
$ 957.00 -
HANNA HI93700-01 Photometer reagent, low concentration ammonia nitrogen 100 times
$ 189.00
Introduction
The TR-205H Total Chromium Tester is based on the credible certification method - GB7466-87 "Determination of Total Chromium in Water Quality". In acidic solution, the trivalent chromium in the sample is oxidized to hexavalent chromium by potassium Chromium reacts with diphenylcarbazide to form a purple compound. Through imported cold light source and narrow-band interference technology, the absorbance of the sample at a specific light source wavelength is detected by spectrophotometry, and the sample is directly displayed after the data is automatically processed by the microcomputer. Total chromium concentration value, expressed in unit mg/L.
The digestion and colorimetric integrated tube detection is used to make the detection easier and safer. The instrument is widely used in emergency monitoring, sewage treatment, chemical, pharmaceutical, hospital wastewater, food, printing and dyeing and other industries for its compact design, fast detection, simple operation, and low cost. It can also be used in scientific research units, Wastewater research and use in institutions such as colleges and universities.
Features
1. Wide detection range: Dozens of detection parameters can be expanded and customized according to needs to achieve better resource utilization.
2. High sensitivity: the minimum display value can reach 0.001mg/L.
3. Advantages of light source: imported cold light source, better optical performance, no need for preheating, and a life span of up to 100,000 hours.
4. Intelligent operation: Intelligent operation program guides users to complete operations easily.
5. Diversification of test methods: standard measurement or continuous measurement mode can be selected, free choice between rapidity and accuracy.
6. Low cost of use: low price and less consumption of consumables.
7. Safe operation: the integrated digestion and colorimetric tube is adopted, and the measurement is simple, fast and safe.
8. Large-screen LCD display, direct reading of data, simple operation and time-saving.
Advantages of emergency detection
1. The instrument is compact in design, packed in a box, light in weight and easy to carry.
2. Equipped with special detection reagents to reduce user operations as much as possible.
3. Support wireless Bluetooth printing, and can print historical measurement data (Bluetooth printer is optional).
4. Can store 4000 sets of historical measurement data.
5. Built-in large-capacity rechargeable lithium battery with remaining power display, low power, low power consumption, and ultra-long standby time. The digestion instrument has three power supply modes of mobile power, vehicle, and 220V AC for users to choose.
online operation function
Support network port, USB port, bluetooth function, and can carry out data transmission with PC or printer.
Software advantage
1. Support Chinese/English display (optional), friendly and intelligent design, easy to operate.
2. Built-in system program and user program, you can add frequently measured items to the user program for easy search.
3. It has data storage and power-off protection functions to prevent data loss and facilitate query of historical measurement data.
4. Built-in standard working procedures, no need for user calibration and calibration.
5. Users can also develop user programs and reagents by themselves to adapt to different water conditions in different occasions.
6. A help interface is built in to explain the routine precautions of the user's detection process.
7. It has a one-key restore factory settings function.
Example of operation interface

TongAo TR-205H Total chromium (chromium ion) TesterSpecifications
| LIST | VALUE |
|---|---|
| Measurement parameters | total chromium |
| Measurement range | 0~5Mg/L (measured in sections) |
| detection lower limit | 0.01mg/L |
| Digestion environment | 125℃,30min |
| Measurement time | 45~55min |
| measurement error | ≤± 5% |
| Repeatability | ≤±5% |
| Optical inspection Stability | ≤ +/- 0.001A/20min (100,000 hours life) |
| Colorimetric method | Digestion Colorimetric Tube |
| batch Volume | 6 pcs, 16 pcs, 25 pcs (optional) |
| Data storage | 4000 records, 96 Linear dispersion (support user-defined calibration) |
| Transmission method | USB data cable, LAN, Bluetooth transmission, etc. (optional) |
| printer | Portable thermal printer (optional) |
| Operating interface | Chinese/English (optional) |
| Power Supply | 5V rechargeable battery |
| Power | 0.3W |
| Host size | 240*95*80mm |
| Instrument Weight | Host: 0.5kg; Digestion instrument: 1.37kg |
| Ambient Temperature | 5~40℃ |
| Relative Humidity | ≤ 85% non-condensing |
TongAo TR-205H Total chromium (chromium ion) Tester Packing list
Determination host X1, intelligent digestion instrument X1, digestion shield X1, total chromium determination reagent X1, digestion Colorimetric integrated tube X10, pipette gun X2, Colorimetric tube holder X1, Colorimetric tube cleaning cloth X1, host power adapter X1, USB data cable X1, simple operation flow chart X1, instruction manual X1, certificate of conformity/warranty card X1
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- ActiveJJF 1565-2016
- ActiveGB/T 43603.2-2024
- ActiveHJ 798-2016
- ActiveGB/T 7466-1987
- ActiveGB/T 33328-2016


TR-205H






