Innovative Technologies

Touch Screen pH Meter (QXM-PM278)

Touch Screen pH Meter (QXM-PM278)

Measurement range is (-2.000 ~ 18.000) pH with a resolution of 0.01 pH. Accuracy is ±0.02 pH for the electrode.
Features

• 7-inch colored capacitive touch screen with high resolution (1024×600) and high sensitivity
• Built-in microprocessor chip has intelligent functions such as automatic calibration, ATC, data storage, clock display, USB output, function settings, wireless printing, and self-diagnosis information
• Auto recognition of 25 buffers with three kinds of options: Europe & USA, NIST, and China
• Supports PC connection
• Wireless Bluetooth printing and real-time data transfer to mobile phone are optional
• Smart electrode status display to ensure accurate use
• Can store 1000 sets of test data, which can be saved and transferred to USB memory stick and opened with Excel

Technical Specification

Specifications

Category Specification
Model P811 / P811H
pH Measuring Range (-2.00 ~ 20.00) pH
pH Resolution 0.1/0.01 pH (P811); 0.01/0.001 pH (P811H)
pH Accuracy ±0.02 pH (P811); ±0.002 pH (P811H)
Auto Calibration 1, 2, 3 point
Buffer Options Europe & USA, NIST, China standards
Input Current ≤1×10⁻¹² A
Input Impedance ≥3×10¹² Ω
Stability ±0.01 pH/3h
Temp. Compensation (0 ~ 100)℃, auto or manual
mV Measuring Range -1999.9 mV ~ 0 ~ 1999.9 mV
mV Resolution 1 mV (P811); 0.1 mV (P811H)
mV Accuracy ±0.1% FS (P811); ±0.03% FS (P811H)
Temp. Range (-10 ~ 110)℃
Temp. Resolution 0.1℃
Temp. Accuracy ±0.5℃
Display 7-inch colored capacitive touch screen
Data Storage 1000 sets
Power 12V / 1A
Output USB
Ambient Temp. 15 ~ 30 ℃
Ambient Humidity ≤85%
IP Grade IP54
Dimensions / N.W. 215 × 170 × 37 mm / 600 g
Shipping Size / G.W. 470 × 430 × 72 mm / 3 kg
Standard Accessories pH electrode, Temperature probe, Buffer solution, Power adapter, Manual