Description
Multimeter, SevenDirect(TM) SD23 Pure H2O kit, incl. InLab® Expert Pro-ISM® pH single-rod measuring cell, InLab® 741-ISM® conductivity sensor, buffer solutions (pH 4.01, 7.00, 9.21 and 10.00 / 1413 µS/cm, 2x 20 ml of each), electrode holder and protective cover.
For determining pH/Redox and conductivity/salinity/TDS.
- Single/dual mode: single measurement or simultaneous measurement of pH and conductivity is possible
- Large colour touchscreen (7″) for straightforward data input and direct measurements
- Simple and intuitive operation. On-screen instructions provide step-by-step guidance through the programs (e. g. sensor calibration).
- Screen display can be adjusted for specific requirements. Full-screen mode displays all information, while the details screen only shows the most important measurement information with large digits.
- Calibration can be performed with predefined and user-specific buffers and buffer groups. Calibration memory with optional sensor lock setting available. Quality of the most recent sensor calibration shown directly via pH sensor symbol. Verification mode enables checking of the current sensor status.
- Electrode arm can be operated easily with one hand. Simple and safe electrode handling via specific positions for cleaning and storage. Precise positioning via vertical and horizontal movements.
- Traceable documentation. With each measurement, data such as the timestamp or sample and sensor ID is saved and automatically printed or exported.
- Two-level user management (administrator, operator) prevents unwanted changes to device settings
- Internal measurement data memory: save by pressing a key or with time-controlled measuring intervals
- Intelligent Sensor Management (ISM®) for automatic recognition of ISM® sensors and reading in calibration data
For samples with a low ion concentration such as ultrapure water and deionised water.
| Type | SD23 Pure H2O kit |
| Parameters | pH redox conductivity TDS salinity temperature |
| Channels | 2 |
| Sensor | InLab® PurePro-ISM® (pH), InLab® 741-ISM® (EC) |
| pH measuring range | -2 to +20 |
| pH resolution | 0,001 / 0,01 / 0,1 pH |
| pH accuracy | ±0.002 pH |
| Voltage measuring range | -2000 to +2000 mV |
| Voltage resolution | 0,1 / 1 mV |
| Voltage accuracy | ±0,2 mV |
| Conductivity measuring range | 0 µS/cm to 2000 mS/cm |
| Conductivity resolution | automatic: 0.1 / 0.01 / 0.001 (μS/cm, mS/cm) |
| Conductivity accuracy | ±0.5% of the measured value |
| TDS measuring range | 0 mg/l to 1000 g/l ppm |
| TDS resolution | automatic: 0.1 / 0.01 / 0.001 (mg/l, ppm) or 0.1 / 0.01 / 0.001 / 0.0001 (g/l, ppt) |
| TDS accuracy | ±0.5% of the measured value |
| Salinity measuring range | 0 to 80 psu |
| Salinity resolution | 0.01 / 0.1 psu |
| Salinity accuracy | ±0.5% of the measured value |
| Temperature measuring range | -30 to +130 °C |
| Temperature resolution | 0.1 °C |
| Temperature accuracy | ±0.1 °C (0.0 to 100.0 °C) ±0.3 °C (outside) |
| Calibration points | 1/2/3/4/5 (pH)1/2 (EC) |
| Data memory | 2000 datasets |
| Port | USB-A (USB stick, printer, barcode reader), USB-B (PC) |
| Connection | BNC (pH), Mini-DIN (EC), Cinch (°C) |
| ISM Technology | yes |
| IP rating | 54 |
| Power supply | mains adapter |
| Mains connection | 100-240 V, 50/60 Hz |
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Questions about Multimeter, SevenDirect(TM) SD23 Pure H2O kit, 1 unit(s)
What is this article?
Multimeter, SevenDirect(TM) SD23 Pure H2O kit, 1 unit(s) is the article on this page. Luminix Health distributes Mettler-Toledo for laboratory use. It sits in Hygrometers & humidity meters, inside Temperature measurement, in Lab instruments.
A hygrometer measures the water in the air, as relative humidity or as dew point. It is the instrument for a desiccator room, a stability chamber or a store. The sensor drifts, and the calibration is part of believing the number.
A thermometer reports a temperature. A liquid-in-glass thermometer is a calibrated column. A digital thermometer is a sensor and a display, and the sensor, not the display, is what is calibrated. An infrared thermometer reads a surface and depends on emissivity. A data logger stores the reading over time. Without a stated uncertainty and a calibration point, the number is only an indication. The scale is maintained by the BIPM and compared by EURAMET. Accreditation is BELAC.
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