Biomass online moisture meter

Biomass online moisture meterIt is based on the principle of high-frequency capacitance, measuring the relative dielectric constant of bulk materials in front of the window. Simply put, every substance has its own dielectric constant，The relative dielectric constant of water, ε r=80, is about 1-10 for most other materials. For example, the ε r value of gravel is between 3-4. This means that there is a significant measurable difference in the relative dielectric constant ε r between water (80) and the material being measured (1-10). Based on this difference, the moisture content of the relevant materials can be directly measured. Then output in the form of a standard signal (0-20mA or 0-1OVDC) with the moisture content of the material as a percentage by mass.

1、 Product performance

(1) Accuracy up to 0.1%, maximum 0.02%

(2) Sensors have high wear resistance, corrosion resistance, and earthquake resistance;

(3) Online core moisture measurement, fast measurement speed;

(4) The sensor structure is sturdy and durable, ensuring long-term reliable operation;

(5) The selectivity of sensitivity is very high;

(6) The installation method of sensors is very flexible and easy to operate;

(7) Suitable for automatic humidification or drying to improve product quality;

(8) Equipped with automatic temperature compensation function;

(9) The monitoring system has an integrated data recording device;

(10) The selection of product features can be manually operated through a BCD conversion switch or operated by a control device similar to a PLC;

(11) Maintenance free design.

IIBiomass online moisture meterInstructions for Use

Sensor installation

(1) Indirect installation: If the wall thickness reaches 10mm or more, or if the wall surface is curved, it is necessary to install indirectly. In this case, use welded flanges.

(2) Installed on the measuring window or isolation layer: In some applications where direct contact between the sensor and the product surface is not suitable, a resin glass, glass, or similar neutral isolation layer can be placed between the sensor and the product. Metal isolation layer cannot be used, and the maximum thickness of the isolation layer material is 30mm.

3、 Technical parameters

Host technical data:

Structure E 19 "- Plug in 3HE/42 TE, weighing approximately 2000g.

Structure T The tabletop shell is B236 x H132 x T330mm, with a weight of approximately 4500g.

Structure F On site -/wall mounted casing, B265 x H240 x T250mm, weighing approximately 6500g, with observation door, IP65。

instruction 1/4 VGA-LC monitor with dimensions of 100 x 77mm and 320 x 240 pixels. Suitable for measuring and displaying analog and digital signals.

monitor Date, time, product type, temperature, residual value, humidity or dehydrated substance value, * small and * large alarm values, analog bar graph display, pointer, measurement deviation width (including enhanced display of measurement deviation width, numerical indication, * small/* large limit value, and soft key description).

Humidity measurement range *Low 0000-0100%, * large 0,0-100%, with 1-, 2-, or 3 decimal places.

Temperature measurement range *Small: 0-5 ℃; *Large: 0-120 ℃.

precision *0.02% larger, meeting all material requirements for measurement.

filtering time 0-999 seconds

存储器 User memory, suitable for storing parameters of 24 different products.

Data logger It can store up to 10 years of historical record values, and the real-time clock is used to save measurement records.

analog output Product humidity measurement values: 0/4-20/22mA or 20/22-0/4mA (load 750 Ω), 0/2-10/11V or 10/11-0/2V; product temperature measurement values: 0/4-20/22mA or 20/22-0/4mA (load 750 Ω), 0/2-10/11V or 10/11-0/2V.

Analog input MA - and PT 100- Input

Digital output 1. Relay output: The normally open and normally closed contacts of each small and large alarm relay. Switching voltage: 125V AC 110V DC; Switching current: 1.5A high;
2. Transistor output: 2x electrical isolation, switch voltage:<28V DC, switch current:<50mA.

digital input 2x electrical isolation, control voltage: 8-36V DC, control current: 2-14mA.

interface Standard RS232 and RS485

power supply Power supply circuit 1:230V AC or 115V AC (50-60Hz), -15% to 10%; Power supply circuit 2 (backup): 24V DC or 24V AC (50-60Hz), ± 25%.

Sensor data parameters:

Humidity sensor FMS 400 K measurement surface PTFE
FMS 400 C measurement of surface ceramics

protection level

Connect4-wire system

Cable 0.25~0.5mm; * 1200m x 0.75mm in length

Process temperature-10 ℃~90 ℃ (special customized high temperature type: 180 ℃)℃）

Storage temperature with cooling -10 ~ 80℃

Corresponding time1 second

Power consumption0.4 watts

SignalRS485

Load pressure6Bar