Grain Moisture Meter – DMA Series

A. Product Overview

The Grain Moisture Meter DMA Series is designed for moisture measurement of agricultural commodities and food materials where moisture level directly affects storage life, quality, processing and commercial value.

The instrument uses a microcontroller based measuring system with a 16 x 2 alphanumeric LCD display. It has a measuring range of 0 to 40 percent moisture, sensitivity of 0.1 percent and stated accuracy of 0.2 percent.

The DMA Series includes models from DMA to DMA 8. The model number indicates the number of item calibrations stored in the instrument. This allows buyers to select a model according to the number of commodities they regularly need to test.

Key features include:

Automatic inbuilt temperature compensation

Multi point calibration

Auto calibration

Field calibration and correction

Weight and volumetric mode selection

Item name, quantity and moisture indication on display

Low battery indication

Service required indication

ABS moulded body

No mechanical moving parts

Battery operated portable design

One sample measurement per minute

The DMA Series can be used for grains such as wheat, rice, paddy, maize, jowar, bajra and barley, along with pulses, seeds, spices, dry fruits, flour and animal feed products.

B. Working Principle

The Grain Moisture Meter DMA Series works on an impedance based measurement principle.

The moisture present inside a sample affects its dielectric properties. When the material is placed in the measuring chamber, the instrument measures changes related to the dielectric constant of the material.

The microcontroller processes this measurement using the stored calibration corresponding to the selected commodity and calculates the moisture percentage.

Automatic temperature compensation helps compensate for temperature related changes during measurement. Multi point calibration is provided to improve measurement consistency across the calibrated range.

The instrument also provides field calibration and correction, allowing the reading to be adjusted when required for practical testing conditions.

C. Why Is the DMA Grain Moisture Meter Used?

Moisture content is an important quality parameter for grains, seeds, pulses and processed agricultural materials.

Excess moisture can affect storage quality and may contribute to deterioration of the material. Moisture level can also influence processing, weighing, purchasing and selling decisions.

The DMA Series provides a convenient method for checking moisture without relying only on visual inspection.

It can be used for:

Incoming material inspection

Grain purchasing

Quality control

Storage monitoring

Warehouse inspection

Processing plants

Flour mills

Rice mills

Dal mills

Seed processing

Feed production

Agricultural trading

Commodity testing

Routine moisture checking

The instrument is particularly useful when multiple types of commodities need to be checked using one portable moisture meter.

D. Suitable Buyers

The Grain Moisture Meter DMA Series is suitable for:

Grain traders

Agricultural commodity traders

Farmers

Rice mills

Flour mills

Dal mills

Seed processors

Oilseed processors

Food processing companies

Warehouses

Cold storage and storage facilities

Agricultural laboratories

Quality control departments

Feed manufacturers

Poultry feed manufacturers

Cattle feed manufacturers

Spice processors

Dry fruit traders

Procurement departments

Agricultural cooperatives

Food testing facilities

Exporters and importers of agricultural commodities

The appropriate DMA model should be selected according to the number and type of commodities that need to be measured.

Typical Materials That Can Be Tested

The available calibration list covers a wide variety of materials including:

Wheat

Rice

Paddy

Maize

Jowar

Bajra

Barley

Ragi

Broken rice

Toor

Moong

Udad

Chana

Masoor

Rajma

Chana dal

Toor dal

Moong dal

Masoor dal

Groundnut

Mustard seed

Sunflower seed

Sesame seed

Cottonseed

Castor seed

Flax seed

Almond

Cashew

Pistachio

Raisin

Walnut

Ajwain

Black pepper

Cardamom

Coriander

Fennel

Dry chilli

Dry ginger

Fenugreek

Cumin seed

Coffee seed

Maize flour

Maida

Wheat atta

Wheat rava

Wheat suji

Wheat bran

Besan

Soybean flour

Rice flour

Soya meal

Animal feed

Cattle feed

Poultry feed

Fish meal

The exact calibration required should be confirmed while selecting the DMA model.

Frequently Asked Questions

1. What is a DMA Grain Moisture Meter?

The DMA Grain Moisture Meter is a digital moisture measuring instrument designed for checking moisture content in grains, seeds, pulses, spices, flour, feed and other agricultural products.

2. What is the measuring range of the DMA Series?

The specified moisture measuring range is 0 to 40 percent.

3. What is the sensitivity of the moisture meter?

The instrument has a sensitivity of 0.1 percent.

4. What is the stated accuracy?

The stated accuracy is 0.2 percent.

5. How does the DMA moisture meter work?

It works on an impedance based principle by measuring the dielectric constant of the selected material. The microcontroller then calculates the moisture percentage using the corresponding calibration.

6. What is the difference between DMA, DMA 2, DMA 3 and DMA 8?

The model number indicates the number of item calibrations stored in the instrument. A higher model number allows calibration storage for a larger number of selected materials.

7. Does the DMA Series have automatic calibration?

Yes. The DMA Series is specified as the auto calibration version.

8. Does it provide temperature compensation?

Yes. Automatic inbuilt temperature compensation is provided.

9. Can field calibration be performed?

Yes. Field calibration and correction functionality is provided.

10. Can it measure wheat moisture?

Yes. Wheat is included among the supported grain applications.

11. Can it measure rice and paddy moisture?

Yes. Rice and paddy are included in the calibration item list.

12. Can it measure maize moisture?

Yes. Maize is listed as a supported grain.

13. Can it measure chana and chana dal moisture?

Yes. Chana whole and chana dal are included among the listed materials.

14. Can it measure pulses?

Yes. The listed applications include toor, moong, udad, chana, masoor, rajma and several other whole pulses and dals.

15. Can it measure spices?

Yes. The calibration list includes spices such as cumin, coriander, fennel, black pepper, cardamom, dry chilli, dry ginger, fenugreek and others.