Easy-to-use weighing terminals
We offer a wide range of scale terminals and dosing controllers for various industrial applications such as accurate weighing, controlled and fast filling, as well as dosing, check weighing, and material flow measurement and control.
Our scale terminals are part of a whole weighing system that optimizes the operation of your process and the quality of your production – thus saving both time and money.
We are the innovative market leader in industrial weighing in Finland. We use our century of experience and expertise to ensure the best possible solution for your needs. Our expertise helps us find comprehensive solutions for you that will improve the efficiency and profitability of your entire operation.
Scale terminals for demanding operating environments
Our weighing terminals are especially designed for demanding industrial environments. The protection class of our terminals fulfill the requirements for the device to work reliably even in demanding industrial environments.
Emphasis has been set on the reliability of the measurement signal, among other things, with efficient signal filtering, which filters out signals that expose the terminal to electrical interference, leaving only the actual measurement signal. Scale terminals also have their own special features. In the WA-903 + model, for example, the signal of load cell is read separately at the terminal, so that sensor faults can be detected effectively. The quality of our products is guaranteed by our ISO 9001 certified quality system.
Easy-to-use terminals, versatile range
Ease of use and versatility are the greatest strengths of our scale terminals. In our diverse range, you will always find the best possible alternative for various industrial weighing applications. The terminals are also suitable for legal metrology, such as commercial use, in which case it must be type-approved and certified regularly.
WA-800 and WA-900 series of scale terminals and dosing guides for accurate and fast weighing and dosing control
WA-800 scale terminals and dosing controls are especially designed for demanding industrial weighing applications. They are suitable both as an independent scale terminal as well as for connection to a wider system.
WA-800 is mounted either on a wall or on a table or it can be mounted on the panel door or on a DIN rail inside the cabinet. The housing is made of stainless steel and the protection class is IP65. The DIN rail mounted version has a protection class IP20.
WA-800 includes the following models
|WA-801 Scale terminal||Weighing applications|
|WA-802 Scale terminal||Versatile weighing applications|
|WA-804 Summing controller||Receiving and loading applications|
|WA-805 Complete dosage controller||Automatic dosing applications|
|WA-806 Emptying dosage controller||Automatic dosing applications|
|WA-807 Checking scales control||Automatic checking weighing|
|WA-810 Summing conveyor belt scales terminal||Conveyor belt weighing applications|
Connection to the above system is easy and there are several bus options available: Modbus/RTU, Modbus/TCP, Profibus, Profinet ja DeviceNet.
WA-800 series devices have also been approved for commercial weighing.
WA-903+ is a stable weighing transmitter designed especially for the ease of device connectivity and field installation.
WA-903+ special features are that it has a separate measuring channel for each sensor, which can be connected to up to 8 devices. The A/D conversion of each individual sensor is done independently by its own converter and digitally summed up.
A singled channel measuring will bring many advantages:
- Automatic corner adjustment during calibration
- The weight distribution of the scale can be easily measured
- During the fault situation the faulty sensor is quickly localized
- Weighing systems with several scales can be realized with a single transmitter
- Possibility to use load cells of different type in the same scale
Connecting WA-903+ with other systems happens easily and reliably via Ethernet or a standard field bus. The communication protocol may be ModBus/TCP, Ethernet/IP, Profibus DP, Profinet, DeviceNet as well as Modbus RTU.
The device has its own high-speed digital outputs for high-speed actuator controls required for critical metering processes, for which the upper system speed may not be sufficient.
Typical WA-903+ applications include car scales, tank and silo weighing, data collection and dosing processes.
WA-903+ also suitable for applications subject to legal control in single range, multi range or multi-interval applications (3 areas).
WA-951+ The dosing controller is designed for fast and accurate dosing and weighing control in the most demanding applications. The controller controls and monitors the dosing of the batch with fillings and discharge accurately and optimizes the process automatically. This ensures the best dosing accuracy and efficiency even in changing conditions.
The controller is particularly suitable for industrial dosing systems requiring both reliability and modularity. Typical applications include control of bulk dosing processes, for example in the dry mix industry, in material mixing systems and in the food industries.
The WA-951+ controller can be used as an independent controller but most of the time the controller is integrated with the factory’s other control system.
The use of the controller also speeds up planning and reduces errors because the dosing control functions are performed in the standard software in the controller, and not in the master system (such as the PLC).
The controller’s standard software includes, for example, the following functions:
- Three phase dosage: coarse feed, fast fine feed and fine feed – the length and/or number of doses of each stage are adjusted automatically based on the selected criteria.
- Negative or positive dosing.
- Automatic cut off correction
- Automatic dosing restart if the dose is too far from the target
- Tolerance monitoring
- Detailed and unambiguous alarms
- Material data
- We manufacture scale terminals suitable for demanding industrial weighing as well as commercial weighing
- You will find a wide range of terminals, dosing controls and check scale controls
- Our long and extensive experience in weighing, measuring and dosing equipment applications gives us the readiness to offer packages and solutions that suit your needs.
WeighingLAHTI products are modern industrial scales or systems including advanced weighing techniques.Learn more
Is my scale in commercial use?
The structure and operation of the commercial scale must meet certain criteria, which are determined by laws, directives and many other standards.
A weighing system executed by an expert is a profitable investment
When considering the full life cycle costs and especially the reliability and accuracy of the equipment, it is usually most economical to purchase a weighing system from a weighing expert.
CareLAHTI ensures the cost-effective use of devices and installations throughout their life cycle.Learn more about the service