Evaluation electronics and controllers for scales

Target 260 Evaluation Electronics / Amplifier – from practice for practice

The compact, high-precision Target 260 evaluation unit combines all the essential functions of a modern measuring amplifier and offers excellent value for money.
It is suitable for static scales such as silo and container scales, platform scales, or other scales for measuring stationary weights. It is calibratable as a static scale in accordance with the OIML R76 directive.

Both its high functionality and ease of commissioning have been derived from experience gained in numerous commissioning projects and have been continuously improved and further developed.
In addition to displaying essential information on the display, the Target 260 comes standard with all important interfaces for industrial applications, enabling easy integration into existing systems. All common industrial and IT interfaces are also possible on a modular basis.

The robust plastic housing of the Target 260S has an IP65 protection rating and reliably protects the electronics from dust and moisture. The Target 260D variant is particularly easy to connect via the external terminals and is therefore installed on standard rails in control cabinets and housings.

The system can be easily calibrated via the membrane keyboard with soft keys using a self-explanatory menu navigation. All relevant parameters are permanently stored in the memory, ensuring reliable and reproducible measurement accuracy. The Target 260 comes with three output contacts and two digital inputs. The function of the outputs can be configured, e.g., switching contact at a defined weight (max, min, etc.), taring, no error, and much more.
The Target 260 is also used as an evaluation unit in our retrofittable silo weighing system.

The main features at a glance: 

• High-precision load cell amplifier with 24-bit resolution
• Versions for 10-32 VDC DC or 110-240 VAC AC power supply
• Plastic housing with IP65 protection (Target 260S) or stainless steel housing with IP66
• Calibratable according to OIML R76 for static weighing applications
• Real-time clock (RTC)
• 3 configurable relay output contacts and 2 digital input contacts, function selectable
• Bright OLED display readable even in difficult lighting conditions.
• Option to monitor and alert individual load cell errors, including range exceedances, uneven loading, and cable breaks via the integrated CAN-BUS interface when used in conjunction with the intelligent terminal box (set LINK).
• Analog output – standard, expandable to all common interfaces.

Status 290 evaluation electronics with dosing function – for simple dosing tasks

The Status 290S is based on the same technology as the Target 260, but offers additional functions for dosing processes and an even more robust design. The high-quality stainless steel housing complies with protection class IP66, making it ideal for use in harsh industrial environments.
As with the Target 260, the clear menu navigation ensures uncomplicated operation and quick calibration. All important parameters are permanently stored, ensuring that the system works reliably at all times. The Status 290S is equipped with three output contacts and two digital inputs ex works. In addition, integrated software with a dosing function is included as standard, making it easy to control filling and emptying processes. Dosing can be carried out in coarse and fine flow modes, and a so-called overrun can also be taken into account in order to reach the target weight precisely and at maximum speed.
 

Calibratable weighing terminals and controllers for industrial scales from Systec

For over 20 years, we have enjoyed a close partnership with SysTec Systemtechnik und Industrieautomation GmbH, known by the abbreviation Systec. 
In the field of dynamic mass flow measurement, Hense Wägetechnik uses weighing terminals from Systec, particularly for continuous flow scales, type FlowSlide (set LINK to FlowSlide), belt scale applications (set LINK to belt scales), and weighing screws.

In addition, a wide range of (standard) applications are covered by the various weighing terminals. These include liquid and solid filling scales, continuous flow scales, belt scales, industrial scales, receiving and loading scales, checkweighers, counting scales, mobile scales, vehicle scales, and many other applications in weighing technology.

The high quality standards and innovative strength of the hardware and software developed and produced in Germany make SysTec a market leader in industrial weighing technology.
The wide range of certifications and type approvals enable use in all major markets worldwide.  

All terminals are characterized by very high manufacturing quality and protection class. 

The most important SysTec weighing terminals in the Hense Wägetechnik portfolio:
 

The "intelligent terminal box" enables seamless monitoring of the components used in a weighing system. It replaces conventional terminal boxes or connection boxes for load cells. Since the intelligent terminal box can usually be operated without an additional supply voltage, an existing standard terminal box can be easily replaced 1:1 in most applications.

Biggest advantage: precise measurement results and static safety

The intelligent terminal box shows its greatest strength during the commissioning and installation of weighing systems with four or more load cells, and especially in large silos. An even load on all load cells is a basic requirement for precise measurement results. In large silos, it is also essential that the load of the silo is distributed across all four or more support points, as specified by the static calculation of the silo. 

The easy-to-read OLED display shows the individual mV signals of the load cells, the average value, the supply voltage, and information and error messages. The individual signals represent the load on each load cell, which is also shown in a clear bar display. By shimming the individual support points, an even load on all points is ensured. When configured correctly, the intelligent terminal box indicates an uneven load distribution until this is eliminated and the silo or container is sufficiently well leveled.

A fault message is shown on the display of the intelligent terminal box and the corresponding evaluation unit of the Target 260, Status 290, or Taskmaster 580 types. A fault can also be output as a collective fault via a relay output, enabling reliable monitoring of the entire weighing system. If necessary, messages are only deleted after acknowledgment. This is particularly helpful when troubleshooting sporadic errors or "loose contacts."

Four load cells can be monitored per terminal box, while additional load cells or silos can be integrated via the standard CAN bus.

For automated processes that require more than just a weight display, various controllers are available for demanding tasks. Whether control weighing with checkweighers, continuous dosing using the loss-in-weight method, or special controls for special systems, the electronics used must be reliable, fast, and process-safe.
Our controllers not only enable precise recording and processing of weight values, but also perform control functions such as dosing, tolerance monitoring, or recipe control. Integration into existing systems is possible via all common interfaces and fieldbus protocols.
Depending on the application, preconfigured application packages and software or individually programmable solutions are available. For special applications, we work with the customer to develop customized control concepts – tailored to your process and on-site requirements
. 

No more empty raw material silos or overflowing product and waste silos – supplier and partner management using the networked silo weighing system "Teleonix"

The "Teleonix" system enables convenient monitoring of silo levels at one or more locations via cloud-based software. The software can be used on both stationary computers and mobile devices such as smartphones and tablets. The system can be configured so that carriers and suppliers have round-the-clock access to up-to-date information on silo contents, remaining capacities, and consumption. Access can also be restricted to individual silos. The data can be retrieved both manually and automatically. It is displayed graphically, and historical data can also be integrated into tables and databases.

Automated notification for silo refilling or emptying

The software allows individual limit values to be defined so that notifications can be sent automatically via SMS or email when a minimum fill level is reached or a maximum value is exceeded. In addition, Teleonix offers a detailed analysis of the consumption of individual components and a forecast of the estimated time until emptying. Supply chains can be automated and optimized, freight forwarders can be specifically commissioned, and service technicians can be quickly informed in the event of malfunctions.

Advantages at a glance:

• Continuous monitoring of silo levels
• Optimization on the part of the silo operator

Optimization on the part of the logistics partner/supplier

Features of the Teleonix system

• Remote monitoring of silo levels at any number of locations via GPRS network on a web server application.
• Email notifications for preset fill level thresholds
• Download of historical data
• 6 configurable analog input channels for additional measurement technology (other scales, etc.)
• CAN BUS interface – for direct connection to silo scales with Target 260 or Status 290 evaluation electronics
• GPS positioning with display on a map
• ABS IP65 housing
• For 110-240 VAC or 10-32 VDC power supply
• Bright OLED display for content display and configuration

In combination with the "intelligent terminal box" (set LINK to the intelligent terminal box page) and the Target 260 or Status 290S evaluation units, not only can the fill level of the silos be monitored, but the status of the individual load cells can also be analyzed in real time.

Freely programmable weighing electronics with specially adapted software are used for mass flow measurement of bulk solids, for example in our FlowSlide systems or certain belt scales. These dynamic scales place high demands on the weighing electronics, as the load cell built into the scale must be sampled at a high frequency and the raw signal must be filtered. Conventional standard evaluation units cannot do this, which is why dynamic measuring systems always consist of the mechanical part and an evaluation unit.

This offers extensive options in terms of interfaces as well as inputs and outputs.

In addition to the classic function of measuring mass flow and quantity, complex dosing processes with coarse and fine flow control as well as automatic run-on correction or individual process sequences are also possible. In addition, remote control can be implemented via various bus systems (Profinet, Ethernet, OPC UA, Profibus, EtherCAT, etc.) to monitor and control operation remotely. Of course, the scales can also be operated independently.

Compact electronic units with an attractive price-performance ratio are also available for standard belt scales. These offer a reliable and cost-effective solution for simple weighing processes without complex additional functions.
 

Remote displays in various sizes are used to improve the visibility of measured values and process information. These enable readings to be taken from distances of up to 100 meters, depending on the selected character height, which can be up to 140 mm.

Large displays can be supplied either as pure display devices or as weighing electronics with a large display. The latter variant combines two functions in one device. Optionally, models can be equipped with a built-in traffic light function, which provides visual feedback during truck loading, for example, thus simplifying and speeding up the process.