Weight Scales with 4-20ma Output Options

Weight Scales with 4-20ma Output OptionsAt Arlyn Scales, we are dedicated to helping you achieve solutions for all of your weighing requirements with a maximum of ease. Our engineers and technicians are constantly searching for new protocols that will advance the weighing industry and it is for this reason, as well as our attention to quality control and great customer service, that we are number one in the field.

Connecting with Efficiency

With our attention to the newest cutting-edge technologies, as well as how to implement those that are tried and true, all of our scales can be provided with 4-20ma analog output options to help you connect more efficiently. In today’s world it is essential that your company stay ahead of the curve, and the ability to share weight information and other data with other processing equipment is one of the most crucial means for greater productivity.

Our State of the Art Sensors

Calculation of accurate weight is a necessity in all manufacturing industries. The more sensitive the output, the more precise your calculations will be. At Arlyn Scales we use state-of-the-art sensors for our 4-20ma analog output that can be used in a range of applications. Some of the areas where this type of protocol is especially effective are in industries that deal with medical materials, wind measurement, green energy, robotics, the military and aerospace industries, and much more.

Connecting From Any Location

Our scales incorporate 4-20ma analog output in order to enable sensors to interface with machines from any location. This means that there is always a reliable current available for a direct or wireless connection. Fully isolated, the 4-20ma is able to work with current loop voltage and can be applied with any type of input channel.

The Current Loop

A current loop is what is commonly used for digital communications. It is a popular communications interface that uses a current for signaling, rather than voltage. It can be used over relatively long distances and is able to function with optically isolated links, making it an extremely versatile and useful tool for communicating data in real time. With a programmable range along with channel assignments, the protocol allows for data transfer throughout your entire network.

Accurate Analog Signaling

The 4-20ma has generally been used for analog signaling to ensure that the accuracy of a signal is not affected by a possible drop in voltage within the network of interconnecting wiring. The loop provides operating power to the device, and even if electrical resistance occurs in the line, communication remains status quo. This means you never lose contact with information as it is fed into the system due to the current being maintained up to its maximum voltage capacity at all times.

Consistency All the Way Down the Line

In an analog environment, it is important to have an end-to-end direct current, or DC, to ensure that the current is consistent all the way through the line. With process automation, a point-to-point multi-drop circuit is used in order to transmit signals from the scales and sensors to a controller, which in turn sends an analog signal.

Compensating for Potential Failure

Another factor in assuring accuracy when it comes to communication between instruments is that the piece of equipment on the receiving end is able to detect any failure in the loop. In this regard it will configure with the same current loop as used by the transmitting device in order to take into account pressure, temperature, flow, and other essential processes. Our equipment is designed to compensate for any potential failure so that your processes remain consistent.

Monitoring and Controlling Information

Because we create scales to configure with the latest technology, you have the ability to monitor and control all of the information that comes through your network set-up. We have made sure that setting up this network is as easy as possible, where all you have to do is plug in your Arlyn scale and connect using our Remote Indicator software. Once this is done, all of your weights can be recorded, grouped, sorted, and analyzed from your workstation. Additionally, a network can be set up to help you access information from anywhere in the world via the Internet. Our scales also offer wireless Ethernet options for even greater ease of use.

The Setpoint Controller

Other elements included as options for placement in our scales include a Setpoint controller, which allows for simple batching and PLC type functions, as well as the ability to set up eight target weights simultaneously. The Setpoint can also be used to turn other equipment on and off as desired. This function is ideal for things like feeders, mixers, motors, valves, solenoids, and other similar devices that employ solid state for function.

The Universal Serial Bus

A USB, or universal serial bus, is another common interface available on our scales. With this port, scale data can be sent to an Excel spreadsheet. It can also be used to access any database file in your PC. The PC can additionally control your scale’s operation, ultimately sending weight data directly from the scale to any Windows application software.

Other Communications Protocols

Our scales are also designed with RS-232 or RS-485 communications protocols that assist in transmitting data from one piece of computerized equipment to another, such as printers, logic controllers, and other PCs. With this bi-directional interface, you can easily send and receive commands in order to facilitate full remote capability. With the RS-485, you can operate from a greater distance when it comes to connecting several scales to your computer. Here the scales will share a single line in order to create a fully and efficiently functioning network. The RS-485 can be used with an USB interface to log data and to control up to ten scales from just one PC.

Our Attention to Detail

At Arlyn Scales, reliability is our middle name. We make sure that all of our equipment containing the 4-20ma analog output and our other options are fabricated with the utmost attention to detail and care. We are well aware that your reputation is on the line when it comes to accuracy, and we pride ourselves on making sure that you never disappoint your clients, and that you are never disappointed in us.

For more information on our products, please feel free to contact us by calling our representatives at 800.645.4301, or by filling out our online form, which can be found by visiting us.