TOA DKK WQC-40 Portable Multi-item Water Quality Meter

Measurement method:

+ pH: Glass electrode method

+ Electric conductivity (EC): AC 4-electrode method

+ Salt: Conversion from electrical conductivity

+ Total dissolved solids (TDS): Conversion from electrical conductivity

+ Sea water specific gravity (σt): Conversion from electrical conductivity

+ Temperature (TEMP): Platinum resistor

+ Turbidity (TURB): 90-degree scattered light method

+ Dissolved Oxygen (DO) (Optional): Membrane galvanic cell method

+ ORP (Optional): Platinum electrode method

+ Ion (Optional) (6 types：F-, Cl-, NO3-, Ca2+, K+, NH4+): ion electrode method

+ Water depth (DEPT) (Factory option): Diaphragm pressure sensor method

Display: LCD digital display

Measurement range:

+ pH: pH0.00 to pH14.00

+ Electric conductivity (EC): 0.00 to 10.00S/m

Display range: 0.0 to 202.0mS/m, 0.000 to 2.020S/m, 0.00 to 20.20S/m (manual / automatic / switch range)

+ Salt: 0.00 to 4.00％ (NaCl)

0.00 to 40.00psu (PSS)

+ Total dissolved solids (TDS): 0.0 to 999.9g/L

+ Seawater specific gravity (σt): 0.0 to 50.0σt

+ Temperature (TEMP): -5.00 to 55.00℃

+ Turbidity (TURB): 0.0 to 80.0NTU（mg/L）

0 to 800NTU（mg/L）

+ Dissolved Oxygen (DO) (Optional): 0.00 to 20.00mg/L

0 to 200％

+ ORP (Optional): -2000 to 2000mV

+ Ion (Optional): 0.00 to 2.00mg/L 0 to 62g/L (6 range) (Depending on electrode used)

+ Water depth (DEPT): 0.0 to 100.0m

Accuracy (main unit):

+ pH: ±0.05 pH

+ ORP: ±5 mV

+ Turbidity: ±-1.6NTU & +/-8NTU

+ Conductivity: ±1 % FS

+ Salinity: ±0.04% (NaCl); 0.40psu (PSS)

+ TDS: ±2g/L

+ DO: ±0.1 mg/L / ±1%

+ Seawater specific gravity: ±0.1σt

+ Water depth: ±0.1 m

+ Temperature: ±0.25

Calibration:

+ Turbidity: Zero/Span correction

+ Conductivity: Can be calibrated

+ Salinity: Calibrated

+ TDS: Can be calibrated

+ DO: Zero/Span correction

+ Specific gravity of seawater: Calibrated

+ Water depth: Calibrated

+ Temperature: Can be calibrated

Waterproof design: IP67 - can be submerged in water

DATASHEET