Specifications and Product Details:

Measuring Parameters:

pH, mV, ion concentration, conductivity, resistivity, TDS, salinity, Dissolved Oxygen and Temperature

Features and Applications:

1. Multi-parameter meter contains more than ten kinds of measuring parameters, is suitable for high accuracy measurement, and excellent product for both good performance and low cost.

2. DO measuring mode has automatic compensation for temperature, salinity and air pressure.

3. pH measure mode for high purified water and ammonia added purified water can be setup, suitable for use in electric power and petrifaction industry.

4. Inside setup with function of high purified water non-linearity automatic temperature compensation, suitable for accurate conductivity measurement for high purified water.

5. There are four kinds of ion concentration measuring units: pX, mol/L, mg/L and ppm.

6. Equips model 2503 pH electrode, suitable for measure the weaker ionic strength, feculent and colloidal solution

Technical Parameters:

pH:

Measuring range	(-1.999 to 19.999) pH
Resolution	0.1/0.01/0.001 pH
Accuracy	Meter:±0.002 pH, connect meter with electrode:±0.01pH
Input current	≤1×10^-12A
Input impendance	≥3×10¹²Ω
Stability	±0.002 pH/3h
Temp. compensation range	(0 to 100) °C(automatic or manual)

mV:

Measuring range (mV/ORP/E_H)	-1999.9 mV to 0 to 1999.9mV
Resolution	0.1mV
Accuracy	±0.03% FS

Ion Concentration:

Measuring range	0.00 to 14.00pX
Display unit	pX, mol/L, mg/L, ppm
Accuracy	Meter:±0.5 % reading(monovalent), ±1.0 % reading (bivalent)
Temp. compensation range	0 to 60 °C(automatic or manual)

Conductivity:

Measuring range	Conductivity: (0.00 to 20.00)μS/cm (20.0 to 200.0)μS/cm (200 to 2000)μS/cm (2.00 to 20.00) mS/cm (20.0 to 200.0) mS/cm (200 to 2000) mS/cm(K=10) Resistivity:(0 to 100) MΩ·cm TDS: (0 to 100) g/L Salinity : (0 to 100) ppt
Resolution	0.01/0.1/1μS/cm 0.01/0.1/1 mS/cm
Accuracy	Meter:±0.5% FS,connect meter with electrode:±0.80% FS
Temp. compensation range	(0 to 50) °C(automatic)
Electrode constant	0.1 / 0.5 / 1 / 5 / 10 / 50 /100 cm^-1
Reference temperature	25°C, 20°Cand 18°C

Dissolved Oxygen:

Measuring range	(0 to 40.00) mg/L(ppm) (0 to 200.0) %
Resolution	0.1/0.01 mg/L(ppm) 1/0.1%
Accuracy	Meter:±0.10 mg/L, connect meter with electrode:±0.40 mg/L
Response time	≤30 s (25°C, 90% response)
Residual current	≤0.1 mg/L
Temp. compensation range	(0 to 45) °C(automatic)
Salinity compensation range	(0 to 45) ppt(automatic)
Air pressure compensation range	(80 to 105) kPa(automatic)
Automatic calibration	Air saturated by water; water saturated by air
Electrode type	Polarogram type

Temperature:

Measuring range	-10°Cto 110°C
Resolution	0.1°C
Accuracy	5 to 60°C range: ±0.4°C other range: ±0.8°C

Other Technical Parameters:

Data storage	300 groups
Storage content	Measuring value series number, measuring value, temperature, ATC or MTC state, measuring date and time
Power	DC9V/300mA
Communication connector	RS-232
Size and weight	160 x 190 x 70mm/880g
Quality and safety certification	ISO9001:2000, CE and CMC

Working Condition: