Description
SG78-USP/EP SevenGo Duo pro is a dual-channel portable meter dedicated to pH/ion and conductivity determination, including pure-water testing according to USP/EP. The IP67 instrument offers an illuminated LCD, infrared data transfer to printer or PC, time-interval measurement with automatic storage, and memory for 200 GLP-compliant data sets with full sensor and sample identification. Calibration is flexible: segmented or linear modes, five-point pH calibration from six predefined buffer sets plus one user-defined set, and free entry of custom standards or cell constants. Linear and non-linear temperature compensation support conductivity work across 0,01 µS/cm to 1000 mS/cm (±0,5 % of range maximum). The pH range is −2,000 to 19,999 with resolution down to 0,001 and relative accuracy ±0,01; mV spans −1999,9 to 1999,9. Additional modes cover TDS, salinity and resistivity. Power is supplied by four 1,5 V AA batteries (or NiMH). This configuration from manufacturer Mettler-Toledo OnLine comprises the meter, InLab Pure Pro-ISM pH electrode (2 m), InLab742-ISM conductivity electrode (2 m), calibration solutions, operating instructions, declaration of conformity, test certificate and batteries. Net weight 2,06 kg.
This article is part of Conductivity meters & cells, in pH & electrochemistry. See also pH meters.
Key features
- Pack size: 1 set
- Channels: Dual-channel pH/ion/conductivity
- pH range: −2,000 to 19,999
- Conductivity range: 0,01 µS/cm to 1000 mS/cm
- Pure-water measurement: USP/EP compatible
- Included electrodes: InLab Pure Pro-ISM (2 m), InLab742-ISM (2 m)
- Technical Information Sheet:
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Questions about SevenGo Duo pH/Ion/Cond meter SG78-USP-K
What is this article?
SevenGo Duo pH/Ion/Cond meter SG78-USP-K is the article on this page. Luminix Health distributes Mettler-Toledo OnLine for laboratory use. It sits in Conductivity meters & cells, inside pH & electrochemistry, in Lab instruments.
A conductivity meter and its cell measure how well a solution carries current. The cell constant is the geometry that converts conductance to conductivity, and it is calibrated with a standard. Temperature compensation matters because conductivity rises with temperature.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is Conductivity meters & cells. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, pH meters, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
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