TongAo TR 6900CPN and TongAo TR 6900PN compare

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Model selection comparator If you have any questions, please click below Service	TongAo TR 6900CPN Desktop STIP-scan 27000.0 RMB China Detail	TongAo TR 6900PN Desktop STIP-scan 19800.0 RMB China Detail

Model comparison

Type	Multiparameter	Multiparameter
Style	desktop	desktop
Measurement parameters	COD TN TP NTU Miscellaneous	TN TP NTU Miscellaneous
Accessories

Parameter comparison

Measurement parameters	COD, total phosphorus, total nitrogen, turbidity, suspended solids	Total phosphorus, total nitrogen, turbidity, suspended solids
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 dispersions (expandable)	96 Linear dispersions (expandable)
printer	Built-in thermal printer	Built-in thermal printer
Display	5-Inch high-definition color LCD	5-Inch high-definition color LCD
batch Volume	16/25 water samples/batch	16/25 water samples/batch
Colorimetric method	Digestion Colorimetric Tube	Digestion Colorimetric Tube
Sample compatibility	16 mm (round), 25mm (round)	16 mm (round), 25mm (round)
Communication interface	USB cable, LAN, etc	USB cable, LAN, etc
exception notification	Blank comparison prompt, overrange prompt, etc	Blank comparison prompt, overrange prompt, etc
Operating 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 level	IP30	IP30
Relative Humidity	≤ 85% non-condensing	≤ 85% non-condensing
Ambient Temperature	5~40℃	5~40℃
Host size	348250145mm	348250145mm
Instrument Weight	Main unit less than 2.6kg	Main unit less than 2.6kg
COD detection method	Method 1: HJ/T399-2007 standard; Method 2: Import detection method
COD Measurement range	0-10000mg/L；0-15000mg/L
Lower limit of COD detection	3 mg/L；2 mg/L
COD digestion environment	165℃，15min；165℃，20min
COD anti-chlorine interference	1000 mg/L (expandable); 1000 mg/L (expandable)
Total phosphorus detection method	ammonium molybdate method	ammonium molybdate method
Total Phosphorus range	0~20mg/L	0~20mg/L
Total phosphorus detection limit	0.01mg/L	0.01mg/L
Total Phosphorus Digestion	125℃，30min	125℃，30min
Turbidity detection method	Spectrophotometric method, spec-trophotometry	Spectrophotometric method, spec-trophotometry
Turbidity Measurement range	0 ~ 1000NTU	0 ~ 1000NTU
Lower turbidity detection limit	0.5NTU	0.5NTU
Turbidity digestion environment	No need to digest	No need to digest
Suspended solids detection method	Direct Colorimetry	Direct Colorimetry
Measurement range of suspended solids	0~500mg/L	0~500mg/L
Lower limit of suspended solids detection	2mg/L	2mg/L
Suspended solids digestion environment	No need to digest	No need to digest
TN detection method	Persulfate oxidation	Persulfate oxidation
TN range	0~100mg/L	0~100mg/L
TN detection lower limit	0.5 mg/L	0.5 mg/L
TN digestion environment	125℃，30min	125℃，30min

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