Innovative Technologies

Portable pH/Conductivity Meter (QXM-PC843)

Portable pH/Conductivity Meter (QXM-PC843)

Large LCD screen with controllable white backlight. Built-in microprocessor chip has Intelligent functions such as auto calibration, ATC, data storage, function settings, auto diagnosis, auto power off, and under voltage prompt, etc.
Features

• Large LCD screen with controllable white backlight
• Built-in microprocessor chip has intelligent functions such as auto calibration, ATC, data storage, function settings, auto diagnosis, auto power off, and undervoltage prompt, etc.
• Auto recognition of 25 buffers with three kinds of options: Europe & USA, NIST and China. Support 1, 2, 3 point calibration
• Adopt advanced conductivity measurement technology, with conductivity electrode (K=1), it can meet measuring accuracy requirement for range of 0.5 μS/cm ~ 200 mS/cm
• Can switch among conductivity, TDS, salinity and resistivity. Multinomial calculation for TDS and salinity to ensure the conversion precision of the full scale
• Auto recognition of 8 conductivity standard solutions with 2 kinds of options: Europe & USA, and China

Technical Specification

Specifications

Category Specification
pH Measuring Range (-2.00 ~ 19.99) pH
pH Resolution 0.1 / 0.01 pH
pH Accuracy Meter: ±0.01 pH; Overall: ±0.02 pH
Input Impedance ≥1×10¹² Ω
pH Stability ±0.01 pH / 3h
pH Temp. Compensation (0 ~ 100)°C (Auto / Manual)
mV Measuring Range ±1999.9 mV
mV Resolution 1 mV
mV Accuracy ±0.1% FS
Conductivity Range (0.00 ~ 19.99) μS/cm, (20.0 ~ 199.9) μS/cm, (200 ~ 1999) μS/cm, (2.00 ~ 19.99) mS/cm, (20.0 ~ 199.9) mS/cm
TDS Range (0 ~ 100) g/L
Salinity Range (0 ~ 100) ppt
Resistivity Range (0 ~ 100) MΩ·cm
Cond. Resolution 0.01 / 0.1 / 1 μS/cm; 0.01 / 0.1 mS/cm
Cond. Accuracy ±1.0% FS; Overall: ±1.5% FS
Cond. Temp. Compensation (0 ~ 100)°C (Auto / Manual)
Electrode Constant 0.1 / 1 / 10 cm⁻¹
Temp. Measuring Range (0 ~ 100)°C
Temp. Resolution 0.1°C
Temp. Accuracy 5 ~ 60°C: ±0.4°C; Others: ±0.8°C
Data Storage 200 sets
Power AA batteries (1.5V × 2)
Ambient Temp. 5 ~ 35°C
Ambient Humidity ≤85%
IP Grade IP57 (Dustproof and Waterproof)
Dimensions / N.W. 65 × 120 × 31 mm / 180 g
Shipping Size / G.W. 460 × 300 × 55 mm / 1 kg
Standard Accessories pH electrode, Cond. electrode (K=1), Temperature probe, pH buffer solution, Manual