Digital Load Cells

Introduction

Digital load cells are composed of the analog sensor (resistance strain type) and a digital conversion module. The digital module is made of a highly integrated electronic circuit and SMT surface mounting technology, mainly including an amplifier, A/D converter, microprocessor (CPU), memory, interface circuit (RS485), and digital temperature sensor.

There is a microprocessor inside the digital load cell, which can diagnose itself, and each has its own address. The instrument can monitor the output of each sensor online and perform intelligent processing, which not only greatly improves the reliability of the weighing system, but also can easily Solve the requirements that some analog sensors are difficult to achieve, such as large tare weight and small weighing, eccentric load detection, etc.

Specification

Features

Compared with analog sensors, the following characteristics of digital load cells better meet the requirements of process control:

1. High reliability, strong anti-interference ability, good lightning protection performance

2. The analog sensor is powered by the instrument, and the excitation voltage of its bridge is equal to the power supply of the external instrument. In the industrial field, the instrument and the sensor are easily affected by strong electrical interference and surge, which will cause unstable data and even burn the sensor instantaneously.

3. The digital sensor adopts fully sealed stainless steel laser welding technology, and the internal circuit is filled with helium gas to protect the internal circuit to work reliably, and the protection level reaches IP68. Various protection circuits and lightning protection designs are added. The power supply provided by the instrument is processed first, stabilized, and then used for the excitation of the bridge, which eliminates the surge interference from the power supply and lightning, and enables the sensor to output a stable signal, to ensure the normal operation of the sensor.

4. Uninterrupted work The digital weighing system can ensure the continuity of production and realize uninterrupted work. The instrument not only monitors the working conditions of each digital sensor at all times but also automatically starts the uninterrupted work mode when a sensor failure is found. It can still guarantee the weighing under a certain accuracy for a certain period of time, so as not to cause production downtime. At the same time, the instrument will send a signal to the user to locate the faulty sensor and require replacement.

5. The analog sensor system cannot be weighed once the sensor is faulty, resulting in a major event of shutdown and production shutdown.

Application

It is very troublesome to calibrate on the production site. Many tank systems are difficult to add weight or can not be calibrated with weights. Using digital sensors can be calibrated without calibration. This is because the digital load cells have been calibrated with a standard force measuring machine during the production process, and the output digital quantity is in one-to-one correspondence with the standard force value, and what the meter reads is the actual weight measured by the digital sensor. value, there is no loss in the middle, so calibration-free can be achieved.

Advantages

1. The transmission distance is long, the communication speed is fast, and the anti-cheating effect is remarkable

2. Strong anti-interference ability, high reliability, and good lightning protection performance

3. Exemption from calibration

4. Can work without interruption

5. Easy maintenance, the low overall cost of use

Certificate

We implement TQM (Total Quality System) and SOP (Standard Operation Procedure) with ISO 9001:2017 certification, which assures a strong commitment to quality standards and customer satisfaction.

Testing Equipment

Our in-house design, manufacturing, inspection, and quality control capabilities allow fast response to customer requirements.

Our Service

Service standards: We are committed to providing a high-quality and responsive service to all clients.

OEM: Available for waveguide series.

Stable quality: implement the whole process of quality control, meticulous and strict inspection!

Reasonable price: Internal cost control, reducing expenses, benefiting customers!

Professional selection: more than 5 years of professional engineer selection, to provide you with alternative models of each factory, system solutions

Fast delivery: adequate stocking, shortened delivery time!

Door-to-door service: We usually send the parcel by DHL, EMS, TNT, etc. The tracking number will be sent to you after delivery. It usually takes 3~5working days to reach from our side to your side, which is very convenient for your business.

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