Mettler Toledo SevenExcellence™ series multi-parameter testers-Classification-Sinoinstrument Co.,Ltd.

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		Measurement range	resolution	accuracy
pH/mV module S400	pH	-2.000 ...20.000	0.001/0.01/0.1	± 0.002
pH/ Ion module S500	mV	-2000.0 ... 2000.0	0.1/1	± 0.1
	Temperature	-30.0 ... 130.0 °C	0.1 ℃	±0.1℃
	Ion concentration (pH/ ions only)	0 ... 999 999 mg/L, ppm	0.001...1	±0.5%
	Electrical conductivity	0.001 uS/cm ... 2000 mS/cm	0.001...1	±0.5%
Conductivity module S700	Resistivity	0.01...100.0 MΩ·cm	0.0001 ... 1	±0.5%
		0.01.999999 Ω·cm	0.01 ...1	±0.5%
	TDS	0.001...1000 g/L, ppt	0.001 ... 1	±0.5%
		0.001...999999 mg/L, ppm	0.001 ... 1	±0.5%
	Salinity	0.01 ....80.0 psu, ppt	0.01 ...0.1	±0.5%
	Temperature	-30.0 ... 130.0°C	0.1 ℃	±0.1℃
	Dissolved oxygen	0.000...50 mg/L(ppm)	0.001	± 0.1 mg/ (0~8 mg/L) ± 0.2 mg/L(8~20 mg/L) ± 10%(20~80 mg/L)
Dissolved oxygen module (Polarographic S600)	Saturation	0.0 ....500%	0.1	-
	Pressure	500 ... 1100 mbar	1	± 1
	Temperature	0.0 ...60°C	0.1 °C	±0.1℃
	Dissolved oxygen	0.000 ... 99 mg/L (ppm)	0.001	±0.5%
Dissolved oxygen module (Optical method S900)	Saturation	0.0 ... 600%	0.1	-
	Pressure	500 ...1100 mbar	1	± 1
	Temperature	0.0 ...50 ℃	0.1°C	±0.1℃