Portable Turbidity Meter LTM-A13

Portable Turbidity Meter LTM-A13


Portable Turbidity meter LTM-A13 with microprocessor controlled system, utilizes 90 scattered light principle to measure water turbidity in nephelometric turbidity unit i.e. NTU. The formazine standard solution of turbidity mentioned in ISO 7027 is used for turbidity analysis. Portable meter, used in field and lab scale analysis, delivers highly accurate results as per the GLP standards.

Measuring range (NTU)0 to 100, 100 to 500
Minimum readout value (NTU)0.01, 0.1
Calibration point6
Sample volume5 to 10 ml
Principle method90° scattered light
Operating temperature5 to 40°C
Working temperature5 to 40°C
Light sourceInfrared-emitting diode (850 nm λ)
DetectorSilicon photodiode
Error value± 6 % (± 2 % F.S)
Zero drift± 0.5 % F.S.
Reset functionsYes
MemoryStores up to 20 sets data
Dimension370 × 260 × 150 mm
Weight1.5 kg
Power batteriesDC 1.5 V, 5 AA alkaline batteries
Power supplyAC 220 V, 50 Hz
  • Quick and automatic multi-points calibration
  • LCD display with touch keypad
  • Non- linear data processing and transfer
  • Selectable automatic or manual switch mode
  • High through put stability
  • Auto shut down system
  • Easy to use
  • Standard carrying case for field analysis
Used to test turbidity of water across water testing plants, water recycling units, and food and beverage units as a quality and research parameter.
Accessory No. Name Quantity
1 Specimen bottle 3 pcs
2 400 NTU (Formazine) turbidity standard solution 1 bottle
3 Power cable 1 pc
4 Carrying box 1 pc
Accessory No. Name
1 USB communication interface

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