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Newsletter - May 2019 Signal Conditioning
Signal Conditioners are typically linked to transducers - Strain Gauge, Thermocouple, RTD, Thermistor, Silicon Temp, 4-20mA, mV, V, Potentiometer, Quadrature Encoders, Absolute Encoders, Frequency, Filters etc Amplification Electrical Isolation Linearization Cold Junction Compensation Excitation Some Signal Conditioners convert voltage to frequency and then gated counters are used to capture the data, as in OPTO 22 systems. Most Signal Conditioners are analog in and analog out with conversions, say millivolts in and 4-20mA out or RTD in and +/-5volt out etc. If you also are looking for signal conditioners with high common mode rejection ratios and excellent normal mode ratios ++ 1500VAC RMS Galvanic isolation, Dataforth makes these. Dataforth is a worldwide leader in the design and manufacture of signal conditioning and data communications products for industrial and institutional markets. |
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Newsletter - April 2019 Encoders - Rotary and Linear Rotary and Linear encoders are a special type of transducer for measuring rotational position or linear distances. There are two main
areas of application for linear encoders: Motion systems Rotary encoders are used in a wide range of applications that require monitoring or control, or both, of mechanical systems, including industrial controls, robotics, photographic lenses, computer input devices such as optomechanical mice and trackballs, controlled stress rheometers, and rotating radar platforms. MasTec has the largest range of encoders in the industry from a range of suppliers.
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Inverter Chargers An inverter/charger is a combination of an inverter, battery charger and transfer switch into one complete system. When AC power is available, the inverter/charger recharges the batteries. MasTec Ltd has a full range of Inverter Chargers, and stocks many models for the Marine, Mobile, Automotive and Industrial industries. For mobile power, marine power, Home Power we recommend a transformer based Inverter charger, as in most cases these devices will be connected to inductive loads.   
Quality Advanced Marine and Automotive Power Products. Designed in the UK    |
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Solid State Relays (SSRs) MasTec has sold OPTO 22 SSRs since the mid 1990's - we stock in volume and sell in volume. Opto 22 provides a full range
of Power Series relays with a wide variety of voltage (110–575
volts) and current options (3–45 amps). Where OPTO 22 products cannot provide a spec match and for some specialised situations we use Power-io, Crydom and other speciality companies. OPTO 22 can switch up to 575 VAC at 45 amps in a standard hockey puck module. OPTO 22 is not so strong in DC switching and only have low current ranges. We do have other options. If you are building machines and you need to control AC power, then hockey puck SSRs are excellent as they can be mounted directly to steel cases for heatsinks or if the current is low then use the PCB mount SSRs from OPTO 22. For distributed SSRs use the OPTO 22 G1, G4 or SNAP products that are backplane mounted. For DIN Rail SSRs, large SSRs with heatsinks, single and three phase and contactors plus motor starts use Power-io. For more details on Opto 22 SSR click here 
    
      
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Thyristors and IGBT Controllers Thyristor controllers are designed to control the battery heat of Heating Ventilation and Air Conditioning systems and the resistive loads within electric furnaces. Most of the time Thyristors will be involved when handling high currents and voltages, and often when control over alternating currents is needed. They are also used for power supplies for digital circuits; in case the power supply fails and runs the potential of damaging other components. MasTec Ltd supplies Controllers from three companies Jumo All are leading world supplier of single phase & three phase Proportional Thyristor controllers & IGBT DC Proportional Power Controllers.
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