Mettler Toledo SevenGo Duo SG23 Mode D'emploi page 27

12 Specifications
Measurement
range
Resolution
Limits of error
pH calibration
Isopotential point
Calibration buffer
pH input
pH input
Measurement
range
Resolution
TDS
Salinity
Resistivity
Temperature
Limits of error
Signal input
Power require-
ments
pH/conductivity meter SG23
SevenGo Duo™ SG23 meter - pH
pH mV
pH 0.00...14.00 -1999...1999
0.01 pH 1 mV
± 0.01 pH ± 1 mV
up to 3 points
pH 7.00
●
4 predefined
groups
●
1 user-defined
group of 3 buf-
fers
BNC (IP67),
impedance >
3 * 10 Ω
12
Cinch (IP67), NTC
30 kΩ
SevenGo Duo™ SG23 meter - conductivity
Conductivity TDS
0.10 µS/cm... 0.10 mg/L...
500 mS/cm 300 g/L
Temperature
-5...105 °C
Auto range 0.10 µS/cm...
19.99 µs/cm
2.00 mS/cm... 20.0 mS/cm...
19.99 mS/cm 199.9 mS/cm
Auto range, same
val ues as con duc-
tiv i ty
0.00 ppt... 20.0 ppt...
19.99 ppt 80.0 ppt
Ω•cm (Scientific) 0.00 Ω•cm...
9.99 E +5 Ω•cm
20.0 MΩ•cm...
100.0 MΩ•cm
0.1 °C
Conductivity TDS
±0.5 % of mea- ±0.5 % of mea-
sured value sured value
Temperature
±0.2 °C
7-Pin LTW plug
SevenGo Duo™ SG23 meter – general information
Ratings Batteries
6 V DC, 5 mA 4 x AA/LR6 1.5
V or NiMH 1.2 V
recharge able
Specifications
Temperature
-5 °C to 105 °C
0.1 °C
± 0.5 °C
Salinity Resistivity
0.00... 0.00...
80.0 ppt 100.0 MΩ•cm
20.0 µS/cm... 200 µS/cm...
199.9 µS/cm 1999 µS/cm
200 mS/cm...
500 mS/cm
MΩ•cm 1.000 MΩ•cm...
19.99 MΩ•cm
Salinity Resistivity
±0.5 % of mea- ±0.5 % of mea-
sured value sured value
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