OHAUS Bench Meter Specifications
| Bench Meter Specifications | ||||
| Model | ST5000* | ST3100* | ST2100* | ST3100C* |
| Measurement Range | -2.000…20.000 Ph | -2.00…16.00 pH | 0.00…14.00 pH | 00.0 μS/cm…199.9 mS/cm |
| -2000.00…+2000.00 mV | –1999…1999 mV | –1999…1999 mV | 0.1 mg/l…199.9 g/l (TDS) | |
| -30°C…130 °C | -5 °C…110 °C | 0 °C…100 °C | 0.00 ... 19.99 psu (Salinity) | |
| 0 °C…100 °C | ||||
| Resolution | 0.1/0.01/0.001pH | 0.01 pH | 0.01 pH | Automatic Range |
| 1/0.1/0.01mV | 1 mV | 1 mV | 0.1 °C | |
| 0.1 °C | 0.1 °C | 0.1 °C | ||
| Error Limits | ± 0.002 pH | ± 0.01 pH | ± 0.01 pH | ± 0.5 % of the Measured Value |
| ± 1 mV | ± 1 mV | ± 1 mV | ± 0.3 °C | |
| ± 0.1 °C | ± 0.5 °C | ± 0.5 °C | ||
| Calibration | 1-9 points | 3 Points | 1 or 2 Points | 1 Point |
| 3 Predefined Buffer Groups | 1 Predefined Buffer Group | 4 Predefined Standards | ||
| (4.01, 7.00, 10.01) | ||||
| Memory | 1000 sets,with 10*10 calibration data,8 predefined buffer groups and 1 self-define buffer group | 99 Measurements Last Calibration Data | Last Calibration Data | 99 Measurements Last Calibration Data |
| Power Supply | 110-240V/50 Hz, DC 9V | 110-240V/50Hz, DC 12V | 110-240V/50Hz, DC 12V | 110-240V/50Hz, DC 12V |
| Size/Weight | 220 W × 175 D× 78 H mm / 0.55 kg | Approximately 220 W × 175 D × 78 H mm / 0.75 kg | Approximately 220 W × 175 D × 78 H mm / 0.75 kg | Approximately 220 W × 175 D × 78 H mm / 0.75 kg |
| Display | Color Touch-Screen LCD | Liquid Crystal Backlight | Liquid crystal | Liquid Crystal Backlight |
| Input | BNC, impedance >3*10e+12 Ω Cinch, NTC 30 kΩ | BNC, impedance > 10e+12 Ω Cinch, NTC 30 kΩ | BNC, impedance > 10e+12 Ω Cinch, NTC 30 kΩ | Mini-Din |
| Temperature Compensation | ATC and MTC | ATC & MTC | ATC & MTC | Linear: 0.00 %/°C…10.00 %/°C |
| Reference Temperature: 20 & 25 °C | ||||
| Housing | ABS | ABS | ABS | ABS |
