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AK135

Bench EC Meter

Benchtop EC, TDS, salinity and temperature meter for accurate water-quality, food, soil and laboratory analyses.

AK135 Bench EC Meter
0.00 to 1999 μS/cm / 2.00 to 19.99 mS/cmCONDUCTIVITY RANGE
Download datasheet Instruction manual

Overview

Ideal for accurate measurements in laboratories and schools, water quality testing, sewage treatment, soil/fertilizer testing, food processing (for HACCP compliance), geological testing. Great for R&D and QC applications in the food and pharmaceutical industries, paper/pulp processing, chemical industries.

AK135 AK135 Max - Bench EC/TDS/Salinity Meter

Key features

  • Measures conductivity, TDS, salinity and resistivity
  • Conductivity cell K=1.0 with integrated temperature sensor (AK1021)
  • Multipoint calibration: 84 µS/cm, 1413 µS/cm, 5.0 mS/cm and 12.88 mS/cm, plus customisable points
  • Configurable TDS factor
  • Internal memory for up to 100 records
  • Automatic and manual temperature compensation from −5 to 100 °C
  • Benchtop construction with IP65 protection and 220 Vac / 12 Vdc supply
AK135 AK135 Max - Bench EC/TDS/Salinity Meter

Applications

Built for the field

Laboratory application

Laboratory

Bench-grade accuracy for QC, research, and routine laboratory analysis.

Food & Beverage application

Food & Beverage

Rapid checks for dairy, beverages, sauces, and process-line compliance.

Water Treatment application

Water Treatment

Field testing for municipal and industrial water treatment monitoring.

Wastewater application

Wastewater

Agriculture / Soil application

Agriculture / Soil

Specifications

Measurement Specifications
Parameter Range Resolution Accuracy
Conductivity 0.00 to 19.99 µS/cm 0.01 µS/cm ± (2%FS + 1 digit)
20.0 to 199.9 µS/cm 0.1 µS/cm ± (2%FS + 1 digit)
200 to 1999 µS/cm 1 µS/cm ± (2%FS + 1 digit)
2.00 to 19.99 mS/cm 0.01 mS/cm ± (2%FS + 1 digit)
Salinity 0.00 to 12.00 ppt 0.01 ppt ± (2%FS + 1 digit)
Total Dissolved Solids (TDS) 0.00 to 9.99 ppm 0.01 ppm ± (2%FS + 1 digit)
10.0 to 99.9 ppm 0.1 ppm ± (2%FS + 1 digit)
100 to 999 ppm 1 ppm ± (2%FS + 1 digit)
1.00 to 9.99 ppt 0.01 ppt ± (2%FS + 1 digit)
10.0 to 19.9 ppt (TDS factor > 0.50; max. 19.9 ppt with factor 1.00) 0.1 ppt ± (2%FS + 1 digit)
Resistivity 0.0 to 100.0 MΩ.cm 0.1 MΩ.cm ± (2%FS + 1 digit)
Temperature -5.0 to 100.0 °C 0.1 °C ±0.5 °C
General Specifications
Electrode operating temperature 0 to 80 °C
Display backlight On/Off
Freezing the reading (HOLD) Manual/Automatic
Protection rating IP65
Operating humidity 10 to 90 % RH (non-condensing)
Power supply 220 VAC / 12 VDC Adapter
Dimensions 216 x 190 x 59 mm
Weight 950 g

What's in the kit

  • Samples solutions 1413 μS/cm and 12.88 mS/cm (20 mL)
  • Storage Box
  • Instruction manual
  • AK1070 — Electrode Holder
  • AK1075 — Power Supply 220 VAC / 12 VDC
  • AK1021 — Conductivity Cell K=1 (with ATC) — Glass Body
AK135 kit contents

Accessories

Replacement parts, calibration solutions, and maintenance supplies for the AK135.

Conductivity 1413 µS/cm Calibration Solution (250 mL)

AK4523

Conductivity 1413 µS/cm Calibration Solution (250 mL)

Learn more
Conductivity 12.88 mS/cm Calibration Solution (250 mL)

AK4524

Conductivity 12.88 mS/cm Calibration Solution (250 mL)

Learn more

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Custom kit configuration

Instrument, probe, solutions, and carrying case

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