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Portable Type

P-523 Portable Conductivity/DO Meter

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Measure conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature of water solutions and very cost effective.

●Large LCD screen with controllable white backlight.

●Humanized designs like rack and skid proof shell make it more convenient for users.

●Double-parameter and equipped with pH electrode and conductivity electrode, can recognize electrode automatically.

●Built-in microprocessor chip with functions of auto calibration, auto temperature compensation, data storage, function setup, self-diagnosis, auto power off, low voltage display.

●Auto recognition of 8 standard conductivity buffers, and there are two options for standard solutions: Europe & America series and China series.

●Adopt advanced conductivity measurement technology, one point calibration of conductivity electrode with constant K=1 can meet the measuring accuracy requirements for test 0.5μ S/cm ~ 200mS/cm.

●Able to switch between conductivity, TDS, salinity and resistivity. Multinomial calculation for TDS and salinity to ensure the conversion precision of the full scale.

●Conductivity mode has the function of non-linear temperature compensation for high purity water.

●Measurement mode of Dissolved oxygen has the function of automatic temperature compensation, automatic salinity compensation and manual air pressure compensation.

●New structure polarographic DO electrode can measure temperature, salinity and dissolved oxygen simultaneously and equipped with special DO electrode calibration sleeve, only need 3~5 minutes for polarization.

●IP57 and equipped with calibration solution and carrying case.



Specifications


Conductivity

Measuring range

Conductivity: (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: (0 ~ 100) g/L

Salinity: (0 ~ 100) ppt

Resistivity: (0 ~ 100) MΩ·cm

Resolution

0.01/0.1/1μS/cm 0.01/0.1 mS/cm

Accuracy

Electrode: ±1.0% FS, Instrument: ±1.5% FS

Temperature compensation

(0 ~ 50) (automatic)

Electrode constants

0.1/1/10 cm-1

Reference temperature

25, 20, 18

Dissolved Oxygen

Measuring range

(0 ~ 20.00) mg/L(ppm), (0 ~ 200.0)%

Resolution

0.1/0.01 mg/L(ppm) , 1/0.1 %

Accuracy

Electrode: ±0.10 mg/L, Instrument: ±0.40 mg/L

Response time

≤30s (25, 90% response)

Residual current

≤0.1 mg/L

Temperature compensation

(0 ~ 45) (automatic)

Salinity compensation

(0 ~ 45) ppt (automatic)

Pressure compensation

(66 ~ 200) kPa (manual)

Automatic calibration

Air saturated by water, water saturated by air

Electrode type

Polarographic

Others

Data storage

200 groups

Storage contents

Series number, measuring value measuring unit and temperature

Power

Two AA batteries (1.5V×2)

Size & Weight

65×120×31mm/180g (instrument)

255×210×50mm/790g (with carrying case)

Quality certificates

ISO9001:2008, CE, CMC

Working Conditions

Ambient temperature

(5 ~ 35) (grade 0.01)

Ambient humidity

≤85%

IP grade

IP57


Standard Configuration

1. P-523 Conductivity/DO meter                                          1 unit

2. Plastic conductivity electrode                                           1 pc

3. DO electrode                                                                   1 pc

4. 1408μS/cm standard conductivity solution (50ml)            1 bottle

5. Membrane cap (for DO electrode use)                              3 pcs

6. DO electrode inner solution (30ml)                                    1 bottle

7. Cathode polishing paper                                                   2 pcs

8. Backup AA battery                                                             2 pcs

9. Operation manual                                                             1 copy

10. Carrying case

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