VTSYIQI Multiparameter Water Quality Meter Water Quality Meter with Calibration Fluid ORP Range -1999.9 to 1999.9 mV USB Communication Interface for Measuring pH ORP Ion Concentration Conductivity TDS Aalinity Resistivity Dissolved Oxygen

About this item:

Multiparameter water quality meter contains 8 measurement modes, the meter is suitable for measuring pH, ORP, ion concentration, conductivity, TDS, salinity, resistivity and dissolved oxygen

Automatic temperature compensation ensures accurate readings over the entire range.

Auto-Read function senses and locks the measurement endpoint.

Calibration due alarm prompts user to calibrate the meter regularly.

USB communication interface is easy to transfer data to PC.

pH Mode:

Portable multiparameter water quality meter is equipped with a backlit LCD display.

1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers.

Automatic electrode diagnosis shows the pH slope and zero offset.

ORP Mode

1 point offset calibration allows adjusting the displayed value to a known standard.

Relative and absolute millivolt modes ensure the reliable ORP measurements.

Ion Concentration Mode:

2 to 5 points calibration, including the selection of 8 concentration points.

Automatic electrode diagnosis shows the calibration points and slopes.

Direct ion concentration readout simplifies the measurement process.

Selectable concentration units (ppm, mg/L, mol/L) and ionic valency.

Conductivity/TDS/Salinity/Resistivity Modes:
1 to 5 points calibration with automatic recognition for conductivity standards.

Selectable cell constant (K=0.1/1/10), reference temperature (20/25°C), TDS factor, linear and pure water compensations, seawater and practical salinity measurement modes.

Dissolved Oxygen Mode:

1 or 2 points calibration using the air-saturated water or zero oxygen solution.

Salinity and barometric pressure compensations eliminate measurement errors.

Other Features:

Automatic temperature compensation ensures accurate readings over the entire range.

Auto-read function senses and locks the measurement endpoint.

Calibration due alarm reminds user to calibrate the meter regularly.

Auto-power off effectively conserves battery life.

Setup menu allows setting the number of calibration points, stability criteria, temperature unit, date and time, etc.

Reset function automatically restores all settings to the factory defaults.

Expanded memory stores or recalls up to 500 data sets.

USB communication interface enables easy data transfer to a PC.

Multi-mode power scheme (batteries, power adapter, USB port) ensures the smooth operation of the meter

pH

Range: -2.000 to 20.000 pH

Resolution: 0.001 / 0.01 / 0.1 pH, selectable

Accuracy: ±0.002 pH

Calibration: 1 to 5 points

pH Buffer Options: USA / NIST / DIN / 2 custom buffers

ORP

Range: -1999.9 to 1999.9 mV

Resolution: 0.1 / 1 mV, selectable

Accuracy: ±0.2 mV

Calibration: 1 point

Measurement Modes: Relative / Absolute mV

Ion Concentration

Range: 0.00 to 19999 (depending on the range of ISE)

Resolution: 0.001, 0.01, 0.1, 1, automatic

Accuracy: ±0.5% F.S. (monovalent), ±1% F.S. (divalent)

Calibration: 2 to 5 points

Calibration Solutions: 0.001 / 0.01 / 0.1 / 1 / 10 / 100 / 1000 / 10000

Measurement Units: ppm, mg/L, mol/L, mmol/L

Conductivity

Range: 0 to 20.00, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm

Resolution: 0.001, 0.01, 0.1, 1, automatic

Accuracy: ±0.5% F.S.

Calibration: 1 to 5 point

Calibration Solutions: 10 µS / 84 µS / 1413 µS / 12.88 mS / 111.8 mS

Temperature Coefficient: 0.0 to 10.0%/°C

Pure Water Compensation: Yes

Reference Temperature: 20 / 25°C

Cell Constant: K=0.1 / 1 / 10 / Custom

TDS

Range: 0 to 10.00, 100.0, 1000 ppm, 10.00, 200.0 ppt

Resolution: 0.01, 0.1, 1, automatic

Accuracy: ±1% F.S.

TDS Conversion Factor: 0.1 to 1.0 (default 0.5)

Salinity

Range: 0.00 to 80.00 ppt / 0.00 to 42.00 psu

Resolution: 0.01

Accuracy: ±1% F.S.

Resistivity

Range: 0.00 to 20.00 MΩ

Resolution: 0.01

Accuracy: ±1% F.S.

Dissolved Oxygen

Range: 0.00 to 20.00 mg/L / 0.0 to 200.0 % saturation

Resolution: 0.01 / 0.1, selectable

Accuracy: ±0.2 mg/L / ±2.0 %

Calibration: 1 or 2 points

Pressure Correction: 60.0 to 112.5 kPa / 450 to 850 mmHg, manual

Salinity Correctio: 0.0 to 50.0 g/L, manual

Temperature

Range: 0 to 105°C / 32 to 221°F

Resolution: 0.1°C/°F

Accuracy: ±0.5°C / ±0.9°F

Calibration: 1 point

Calibration Range: Reading ±10°C/°F

Other Specifications

Temperature Compensation: 0 to 100°C / 32 to 212°F, manual or automatic

Hold Function: Manual / Auto-read measurement endpoint

Stability Criteria: Low / High

Calibration Due Alarm: 1 to 31 days or off

Auto-Power Off: 10 / 20 / 30 minutes after last key pressed

Memory: Stores up to 500 data sets

Output: USB communication interface

Connector: BNC, 6-pin mini-DIN, 3.5 mm jack socket

Display: Custom LCD (80 × 60 mm)

Power Supply: 3 × 1.5V AA batteries or 5V DC power adapter

Battery Life: Approximately 150 hours without backlight

Environmental Conditions: 0 to 50°C / 32 to 122°F, relative humidity < 80%

Dimensions: 170 × 85 × 30 mm

Weight: 300 g

Meter Includes：

P11 glass pH electrode

K10 conductivity electrode

DO100 dissolved oxygen electrode

TP-10K temperature probe

pH 4.01, 7.00, 10.01 buffer reagents

Conductivity standard solutions 84 µS/cm, 1413 µS/cm, 12.88 mS/cm

DO electrolyte solution

DO membrane cap

Electrode clip

Carrying case