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ADM Instrument Engineering was approached by an electrical contractor, who provides services to many of Australia’s leading manufacturers and mining companies.The contractor required assistance in coming up with a solution to control 4 heater loads. 3 of the loads are switched on and off via contactors and the other is a variable load controlled by a Eurotherm EPower thyristor. A Eurotherm 3504 series process controller was selected to ensure smooth transition between the fixed loads switching points, which will help stop spikes on the supply. The Eurotherm Model 3504 acts as a slave co

One useful feature of the UniMeasure series JX-P420 draw wire transducers is the user can adjust the Zero and Span.The JX-P420 series ranges from 250mm to 2m draw length, with no price difference between them. This is particularly useful if you need a replacement transducer quickly and we do not have the model with the required measurement length in stock. We can adjust a longer length unit to be used for shorter length measurements. It can also be used when you need to position the sensor in a more suitable location. For example, in a safer location away from moving parts, flying rocks or

ADM has been proudly stocking Seika inclinometers for many years. SEIKA Inclinometers are used by several large mining companies in Australia.As a result, ADM stocks the 3 most common measuring ranges in the country: Model Measuring Range NG2I ±10° NG3I ±30° NG4I ±80° All the above models have a 4-20mA output. What makes these German designed and manufactured inclinometers special are the following features: An exceedingly high resolution; greater than 0.001°, 0.003°, and 0.008° depending on the inclinometer. The outer stainless steel mounting ring can be loosened, allowing you to adjust zero

In this article we dicuss what is meant by 'zero offset' and 'span' and how they can be adjusted on an ESI pressure transmitter. What is Zero Offset? ESI’s pressure transducers and transmitters are factory calibrated to read a fixed output range. For Example: A 0 to 10barg transmitter with a 4-20mA signal output, where 0barg =4mA and 10barg = 20mA. Zero Offset is the amount of deviation in output at the lowest point of the measurement range. Example: your sensor is indicating 0.01 bar, when you know it should be exactly Zero due to the process conditions. Unlike many pressure transmitters on

Many industrial robots and machines that are built in Europe will have Harting connectors fitted to them.ADM Instrument Engineering can help you determine the correct mating connector, so that you can get the robot or machinery up and running. We can also help electrical contractors by supplying replacement Harting connectors when they are conducting repairs on robots. In most cases the connectors come from the Harting Han range of modular industrial connectors, in either the 6B, 10B, 16B, or 24B sizes. In most cases, we have been able to offer a solution from stock. The HAN series allows you

ADM is proud to offer the range of ELCO low-cost phase angle control solid state relays, which can be controlled with either a 4-20mA or 0-10v analogue signal.The range includes models with both a 240v AC and 480v AC class AC voltage input, with current ratings of either 25A, 40A, 60A or 80A. The ELCO SSR19i series solid state relays (SSRs) has a high level of isolation between the input and output. These phase angle control SSRs are required to be mounted on a suitable heatsink to achieve the rated power. You can fit the relay to your own heatsink, or you can have them pre-fitted to a

It is common for multiple load cells to be used to measure the weight of an item.For example, a tank, silo, or platform with 4 legs with a load cell under each leg. Or a weighing platform may consist of a square plate with load cells positioned under each corner. The output values of the 4 load cells need to be averaged in the field, and a single representative load cell signal output to be sent to the display or signal transmitter. We will explore two methods of achieving this: the traditional analogue electronics method and the more modern digital metho of summing and equalising load cells

Load cell signals between a load cell transmitter and a display, or controller, should not be conducted with an ordinary instrument cable. Instead, it should be conducted with a dedicated load cell cable.The reason is that the resistance of the wire needs to be as low as possible. When force or tension is applied to a load cell, there is a very slight change in the resistance of the load cell’s bridge circuit. The load cell transmitter converts the output from the load cell to an extremely low number of milli-volts for every 1 volt of excitation voltage (mV/V). Therefore, it is imperative that

ESI Technology has recently released a Pressure transmitter with RS485 serial communications.The new GS4400 series pressure transmitters provide high stability and repeatability. They suit a multitude of applications, with proprietary, RS-485 protocol allowing you to monitor up to 32 pressure transmitters on the same BUS. ESI’s unique Silicon-on-Sapphire sensor technology provides outstanding performance and gives excellent stability over a wide temperature range. The pressure sensor can endure higher over-pressures and the technology provides superb corrosion resistance, with virtually no

A new version of the Eurotherm Mini-8 multi-loop temperature / process controller is now available.Watch this short video to learn about the new features: Please contact ADM instrument engineering if you would like any further information.