Seven Direct SD20 pH/mV Meter
pH or ORP measurements are common procedures in most laboratories and accurate results often critical for safety and product quality. Developed for a wide range of applications, SevenDirect™ SD20 benchtop meters provide reliable measurements of almost any sample. Their ease of use, data handling options and robustness will delight discerning users. No matter what industry—these features make a difference: • 7’’ touchscreen with intuitive user interface • uFocus mode for most important parameters • Status Light allowing for an easy readiness check • Two level user management to protect instrument settings • Easy sample ID entry helping to keep track of results • Optional EasyDirect™ software for simplified data handling • IP54 protection against dust and spills
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General Specifications
| Measurement parameters | Range | Resolution | Accuracy | Calibration methods | Calibration points |
| pH | -2.000…20.000 | 0.1/0.01/0.001 | ±0.002 | Linear, Segmented | 1 to 5 |
| mV | -2000.0…2000.0 | 1/0.1 | ±0.1(-500.0….500.0) ±0.2(-2000.0…2000.0) | - | - |
| Temperature | -30.0… 130.0 | 0.1 °C | ±0.1 °C | - | - |
SevenDirect™ SD20 Kits Overview and General Accessories
| Kit | Scope of Delivery | Material No. |
| Basic Instrument | Instrument, power supply, protective cover, Get-Started-Guide, electrode holder EasyPlace™ | 30671550 |
| Kit | SD20, plus pH electrode InLab Expert Pro-ISM and 3 × 3 calibration buffer sachets (pH 4.01, 7.00 and 9.21 or 10.01) | 30671554 |
| Stirrer Kit | SD20 Kit plus EasyMix magnetic stirrer | 30671555 |
| HA Kit | SD20 Kit, with InLab Routine Pro-ISM instead of InLab Expert Pro-ISM | 30671556 |
| Organic Kit | SD20 Kit, with InLab Science Pro-ISM instead of InLab Expert Pro-ISM | 30671557 |
| Pure H2O Kit | SD20 Kit, with InLab Pure Pro-ISM instead of InLab Expert Pro-ISM | 30671558 |
| Solids Kit | SD20 Kit, with InLab Solids Pro-ISM instead of InLab Expert Pro-ISM | 30671559 |
| Viscous Kit | SD20 Kit, with InLab Viscous Pro-ISM instead of InLab Expert Pro-ISM | 30671560 |
| Low Vol Kit | SD20 Kit, with InLab Micro Pro-ISM instead of InLab Expert Pro-ISM | 30671561 |
| General Accessories | Material no. |
| EasyPlace Electrode arm (included in standard delivery) | 30671569 |
| Protective cover (included in standard delivery) | 30671529 |
| Barcode Scanner | 30417466 |
| License for EasyDirect™ pH PC software | 30323214 |
| Protective cover (included in standard delivery) | 30671529 |
| USB A-B cable 1.8m for EasyDirect™ | 51191926 |
| EasyMix magnetic stirrer | 30671570 |
| Rainbow I pH buffers (3 x 10 sachets of 20 mL, 4.01/7.00/9.21) | 51302068 |
| Rainbow II pH buffers (3 x 10 sachets of 20 mL, 4.01/7.00/10.01) | 51302080 |
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