pH measurement error

メトラー・トレド

pH meters can be operated easily for measurements. However, the accuracy, reliability, and reproducibility of the measurement results are affected by factors such as contamination, membrane resistance, or the difference in temperature between the sample and the surroundings. Please join our free on-demand seminar on how to avoid errors in pH measurement. Language: Japanese 【Related Webinars】 - How to Calibrate pH https://www.mt.com/jp/ja/home/library/on-demand-webinars/lab-analytical-instruments/How-to-calibrate-pH.html?cmp=af_IPROS - Temperature Effects in pH Measurement https://www.mt.com/jp/ja/home/library/on-demand-webinars/lab-analytical-instruments/Temperature-effects-in-pH-measurement.html?cmp=af_IPROS

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Related product information

Tabletop pH/Electrical Conductivity Meter SevenCompact S213
A high-precision two-channel meter that can measure not only conductivity but also pH simultaneously or individually.

**Features** - Clearly arranged vivid color display for easy viewing - Abundant accessories and data storage options - GLP compliant - Service and support including IQ/OQ **Specifications** pH Display range: -2.000 to 20.000 Resolution: 0.001 / 0.01 / 0.1 Accuracy: ±0.002 mV Display range: -2000.0 to 2000.0 Resolution: 0.1 / 1 Accuracy: ±0.1 mV for -1000 to 1000 mV, ±0.2 mV otherwise Conductivity Display range: 0.001 µS/cm to 1000 mS/cm Resolution: 0.001 to 1 Accuracy: ±0.5%
Portable pH/Conductivity Meter Seven Gold Duo Pro SG78
pH, conductivity, and ion concentration measurement compatible - simultaneous measurement display for 2 channels.

pH Display range: -2.00 to 20.00 Resolution/Accuracy: 0.001 / ±0.002 Conductivity Display range: -0.01 µ/cm to 1000 mS/cm Resolution/Accuracy: 0.001 / ±0.5% Ion Measurement range: 0.000 to 999.9%, 0.000 to 9999 ppm, 1.00E-09 to 9.99E+09 Accuracy: ±0.5% Temperature Measurement range: -5 to 130°C Resolution/Accuracy: 0.1 ±0.2°C Data storage capacity: 500 Dust and water resistance: IP67 Power supply: 4 AA batteries
Tabletop pH Meter SevenExcellence Series
By adding modules, it can be expanded to a maximum of three channels. You can freely combine pH, ions, conductivity, dissolved oxygen, and ORP.

pH Display range: -2.000 to 20.000 Resolution: 0.001/0.01 Accuracy: ±0.002 mV Display range: -2000.0 to 2000.0 Resolution: 0.1/1 Accuracy: ±0.1 Temperature Display range: -30 to 130°C Resolution: 0.1°C Accuracy: ±0.1°C Calibration: Up to 5 points, 8 groups of standard solutions, 20 arbitrary standard solutions Data storage capacity: 20,000 entries External output: RS-232, USB-A, USB-B, LAN
Tabletop pH Meter SevenCompact Series
Efficient daily operations with an easy-to-use pH meter, SevenCompact.

pH Display Range: -2.000 to 20.000 Resolution: 0.001/0.01 Accuracy: ±0.002 mV Display Range: -2000.0 to 2000.0 Resolution: 0.1/1 Accuracy: ±0.2 Temperature Display Range: -30 to 130℃ Resolution: 0.1℃ Accuracy: ±0.1℃ Calibration: Up to 5 points, 8 groups of standard solutions, arbitrary standard solutions Data Storage Capacity: 1000 entries External Output: RS-232, USB-A, USB-B