Product Name TongAo TR 6900B Desktop STIP-scan TongAo TR 6900CNHN Desktop STIP-scan
Product Price $2752.00 $4085.00
Details Details
Model comparison
Type Multiparameter Multiparameter
Style desktop desktop
Detection Principle Photometric Photometric
Measurement parameters COD TP NH₃-N NTU TN COD TP NH₃-N NTU TN
Range Wide Range Wide Range
Accuracy ±5%FS ±5%FS
Resolution 0.01 1
Data Output RS232 USB USB
IP Rating
Parameter comparison
measurement error ≤±5% ≤±5%
Repeatability ≤±5% ≤±5%
Optical inspection Stability ≤ +/- 0.001A/20min (100,000 hours life) ≤ +/- 0.001A/20min (100,000 hours life)
data storage 30,000 records (including item, date, time, sample ID, etc.) 30,000 records (including item, date, time, sample ID, etc.)
Linear dispersion quantity 96 Linear dispersion (expandable) 96 Linear dispersion (expandable)
printer Built-in thermal printer Built-in thermal printer
display screen 5-Inch high-definition color LCD screen 5-Inch high-definition color LCD screen
batch Volume 16/25 water samples/batch 16/25 water samples/batch
Colorimetric method Digestion Colorimetric tube Digestion Colorimetric tube
sample compatibility 16Mm (round), 25mm (round) 16Mm (round), 25mm (round)
communication interface USB cable, LAN, etc USB cable, LAN, etc
exception notification Blank comparison prompt, over-Range prompt, etc Blank comparison prompt, over-Range prompt, etc
operation interface Membrane push-button operation, Chinese/English (optional) Membrane push-button operation, Chinese/English (optional)
Power supply AC(220V±10%),50Hz AC(220V±10%),50Hz
power 5W 5W
Protection Rating IP30 IP30
Environment humidity ≤ 85% non-condensing ≤ 85% non-condensing
Environment temperature 5~40℃ 5~40℃
Dimension 348*250*145mm 348*250*145mm
instrument weight Main unit less than 2.6kg Main unit less than 2.6kg
Measurement parameter COD, ammonia nitrogen COD, ammonia nitrogen, Total nitrogen
COD detection method Method 1: HJ/T399-2007 standard; Method 2: Import detection method Method 1: HJ/T399-2007 standard; Method 2: Import detection method
COD Measurement Range 0-20000mg/L;0-20000mg/L 0-20000mg/L;0-20000mg/L
Lower limit of COD detection 3mg/L;2mg/L 3mg/L;2mg/L
COD digestion environment 165℃,15min;165℃,20min 165℃,15min;165℃,20min
COD anti-chlorine interference 1000Mg/L (expandable); 1000mg/L (expandable) 1000Mg/L (expandable); 1000mg/L (expandable)
Ammonia nitrogen detection method HJ535-2009 "Water quality, determination of ammonia nitrogen, Nessler reagent Spectrophotometric method, spec-trophotometry" HJ535-2009
Measurement Range of ammonia nitrogen 0~50mg/L 0~50mg/L
Ammonia nitrogen detection lower limit 0.01mg/L 0.01mg/L
Ammonia nitrogen digestion environment No need to digest No need to digest