Moisture Analyzers & Meters
GAOTek provides a wide range of superior quality, budget friendly, and precise moisture analyzers for sale in the United States, Canada and globally. This device determines moisture content in samples by evaluating the weight loss produced after the sample is subjected to a drying process using infrared energy. The original sample is first weighted, then the remaining moisture content is evaluated on the weight loss in the sample. GAOTek offers a collection of accurate moisture analyzers of the highest quality to suit your needs.
A moisture analyzer is used to evaluate moisture content in the given sample. It is generally expressed in terms of percentage of weight of the wet product or the dry product. There are certain formulas to evaluate such measurements, depending on whether the base is dry or wet. This is what it looks like:
If the base is wet, the formula used is:
M or the final measurement = 100 times the difference between wet weight and dry weight, divided by the wet weight
If the base is dry, the formula used is:
M or the final measurement = 100 times the difference between wet weight and dry weight, divided by the dry weight
In the final answer from this equation, the wet base moisture must be 100 percent or less, but the dry base moisture can exceed 100 percent and this cannot be a non-linear function.
There are mainly two categories that can be used to determine the moisture content - primary moisture technique or secondary moisture technique.
The primary moisture technique involves a direct chemical determination of the water content. This is usually done by extracting moisture from the product. This technique takes a lot of time, but it is very accurate. Weight loss is usually calculated using this technique.
The secondary moisture technique evaluates the property moisture of the variable instead of measuring it directly. This is the technique is generally used by continuous moisture analyzers. The measurement of secondary analyzer must be calibrated against the primary reference technique. This can be used for real-time process monitoring and control.
In addition to these two offline techniques, there are also some of online measurements techniques – the dielectric technique and the near infrared reflectance technique.
The Dielectric Measurement technique or RF Dielectric technique depends on the high dielectric of water, relative to most solids. This instrument does not allow to separate the dielectric and loss components. Moreover, it does not allow to measure the combined impedance with any stability and reliability in long-term. These devices are tough and reliable as they are manufactured with sensor designs that are perfectly suitable for a large collection of processes, and can also be used in high temperature.
The near infrared reflectance technique or NIR technique reduces the effect of product distance and source aging. These instruments can also act as a light source that is made of halogen bulb. There is a filter placed in rotating wheel that can distinguish the light reflected to a detector which is commonly made of lead sulphide. Water absorbs this reflected wavelength. If the filter does choose one wavelength, it is absorbed by water which then becomes the sample beam. Water does not affect one wavelength. This is the called reference beam. The amplitude ratio of the two reflected wavelengths are proportional to the amount of water in the product. This can mount up to ten inches above the product.
- High-Resolution LCD: High-quality and high resolution backlit LCD is easier to operate in dark places that provides user a comfortable vision.
- Insulation: This heat insulation device is highly precise and it is equipped with sensors that makes the temperature for data acquisition reliable.
- Drift correction: Zero drift correction makes the measurement accurate.
- Battery Low Alert: Battery levels are monitored by the device's systems and when it reaches to a certain levels user is alerted to recharge the device.
- Other Functions: Automatic peeling function, auto power off after 5 minutes from the last operation, fast sampling rate, operates by electrical resistance and has automatic temperature. All GAOTek products are portable and light-weight. This, however, does not limit the quality and accuracy of the readings.
This device can be used in laboratories, food processing industries, mining and mineral sector, tobacco manufacturing companies and paper converting mills. Moreover, it can be used for building materials, textiles, and chemicals.
Showing all 25 results
GAOTek Moisture Analyzer with High Precision (Automatic Peeling)ID: GT00XX00ZU
This Moisture Analyzer with High Precision (Automatic Peeling) is designed with high resolution lattice LCD backlight and can be used to test the moisture of products with various weighing range.
GAOTek Chilled Mirror Dew Point Instruments (Accurate Measurement)ID: GT00XA00ZZ
This Chilled Mirror Dew Point Instruments (Accurate Measurement) is a multifunctional dew point humidity meter designed to dew point measurement of SF6 gas.
Moisture Analyzer with Std RS232 Interface (MCS51, MCU)ID: GT00XX00ZW
GAOTek Cotton Moisture Meter with Fast Speed (Instant Reading)ID: GT00XW00ZX
This Cotton Moisture Meter with fast speed (Instant Reading) comes with an automatic temperature compensation feature is used to effectively measure the moisture content of cotton comes with a wide measuring range of 7 %-14 %
GAOTek Moisture Meter with Concrete (High Precision, Light Weight)ID: GT00XW00ZS
This Moisture Meter with Concrete (High Precision, Light Weight) is a portable meter with digital display suitable for measuring moisture content of cement board, mud, tiles, walls, floors etc.
GAOTek Paper Moisture Meter with High Precision (Fast Speed)ID: GT00ZC00ZY
This Paper Moisture Meter with High Precision(Fast Speed) has wide measurement range and a flat round contact point of 0.2 in (7 mm) which is suitable for measuring the moisture content of the paper.
GAOTek Paper Moisture Meter with High Precision (JIS P8127)ID: GT00ZC00ZX
This Paper Moisture Meter with High Precision (JIS P8127) is used to measure the moisture content of the kraft paper, corrugated paper, photocopy paper, cardboard and all kinds of paper
Inductive Moisture Meter for Paper (High Precision)ID: GT00ZC00ZZ
GAOTek Timber Moisture Analyzer with Dry Plank (Wide Range)ID: GT00XW00ZT
This Timber Moisture Analyzer with Dry Plank(Wide Range) is designed with high frequency digital analyzer for scanning the moisture content of depth up to 1.97in(50 mm) and can be used in crude wood and a variety of timber products.
GAOTek Timber Moisture Analyzer with Wood (Wide Measuring Range)ID: GT00XW00ZU
This Timber Moisture Analyzer with Wood (Wide Measuring Range) is designed with high frequency digital analyzer and can be used to test the moisture degree of wooden substances range from 0 % to 80 %.
Dew Point Meter with Wide Range Temp (High Precision)ID: GT00XA00ZU
Dew Point Meter with High Precision (Large Storage)ID: GT00XA00ZV
Dew Point Meter with High Performance Transmitter (Print)ID: GT00VL00ZZ
Dew Point Meter with High Performance Transmitter (Data)ID: GT00XA00ZW
GAOTek Dew Point Meter with Film Capacitive Humidity SensorID: GT00VL00ZY
This Dew Point Meter with Film Capacitive Humidity Sensor is designed using micro computer technology and developed as an intelligent trace moisture measuring instrument with best performance.
Moisture Analyzer for Paper (Fast/High Precison)ID: GT00XX00ZS
GAOTek Inductive Moisture Meter for Paper & Carton (Wide Range)ID: GT00XW00ZY
This Inductive Moisture Meter for Paper & Carton (Wide Range) is used for measuring moisture content of wood, Timber, paper, Bamboo, Carton, concrete, metope, and other materials.
GAOTek Moisture Meter for Wood & Concrete (Data Hold)ID: GT00XW00ZM
This Moisture Meter for Wood & Concrete (Data Hold) is suitable in measuring moisture content of wood, timber, paper, bamboo, carton, concrete, metope and other materials.
Moisture Meter for Paper (High Precision Measurement)ID: GT00XW00ZO
Moisture Meter for Cotton (Fast Speed/Data Hold)ID: GT00XW00ZP
GAOTek Moisture Analyzer For Wood Timber (Fast/High Precison)ID: GT00XX00ZZ
This portable, compact ‘Moisture Analyzer for Wood Timber (Fast/High Precision)’ can test for more than 100 wood species and comes with an automatic temperature compensation feature
Moisture Meter for Paper (High Precision/JIS P8127)ID: GT00XW00ZN
GAOTek Moisture Analyzer for Grain (Fast/High Precision)ID: GT00XX00ZY
This Moisture Grain Meter (Fast/High Precision) measures moisture content in grains such as barley, corn, hay and oat reliably and is useful in the process of allotment, acquisition and storage and machining of packed grains
Grain Moisture Analyzer with High Precison Grain (Fast)ID:
GAO Tek Thermocouple Calibrator calibrates thermocouple measuring with optional temperature unit select.
GAOTek Dew Point Meter for Gas Humidity (High Precision, Storage)ID: GT00XA00ZY
This Dew Point Meter for Gas Humidity (High Precision, Storage) is designed to measure gas humidity with wide measurement range and can store upto 580 measurement results.