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Portable Type

P-511 Conductivity Meter

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Measure conductivity, TDS, salinity and resistivity of water solutions, suitable for industrial and mining factories, water treatment engineering and environmental protection, especially for outdoor use.

●Large LCD screen with controllable white backlight.

●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 three series of standard buffers for option: Europe & USA series, 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.

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

● Plastic conductivity electrode with automatic temperature compensation to ensure fast and accurate result.

● Grade IP57 and equipped with calibration buffers and portable case.



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 ~ 100MΩ·cm



0.01/0.1/1μS/cm   0.01/0.1 mS/cm



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


Temperature compensation



Electrode constants

0.1/1/10 cm-1


Reference temperature

25℃, 20℃,18℃


Data storage

100 sets


Storage contents

Series number, measuring value, measuring unit and temperature



Two AA batteries(1.5V×2)


Size & Weight

65×120×31mm/180g (instrument)

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

Working Conditions

Ambient temperature

(5~35)℃ (grade 0.01)


Ambient humidity



IP grade


Standard Configuration

1. P-511 Conductivity meter                                                   1 unit

2. Conductivity electrode                                                        1 pc

3. Backup AA battery                                                              2 pcs

5. Operation manual                                                               1 copy

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