Sensors & Instruments Solutions Guide
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Sensors & Instruments Solutions Guide - 1

SSG01(A) Sensors and Instruments for Prcision Measurement Fast, Accurate & Reliable Temp੩rature & Humidity Sensing RTDs | Thermocouples | Thermistors | Humidity | Assemblies | Transmitters | Monitors | Controllers MINCO A critical component of your success"

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Sensors & Instruments Solutions Guide - 2

Minco: A Critical Component of Your Success Minco has been designing and manufacturing critical compo-nents since 1956. During the past five dcades, we've grown into a global company with four product lines: Minco today: global and growing Minco's engineering and manufacturing plants employ over 1000 people Worldwide. More than 300,000 ft; (27,900 m') of manufacturing space provides the capacity and infrastructure to support a variety of applications for global customers in diverse markets. Minco's seamless operational capabilities allow us to design and manufacture integrated components...

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Sensors & Instruments Solutions Guide - 4

Page 1-4 | 1. Understand and define your application requirements Many factors should be a part of the sensor system design process. The factors listed below can help you define the sensing requirements for your application. Define the typical and extremes of these environmental conditions: • minimum and maximum temperatures • pressure • humidity • shock • vibration • flow rate Also ask: • What is the sensed medium (a surface or immersed in solid, liquid or gas)? • Is the medium chemically reactive (corrosive) or hazardous (explosive)? • Is there high electromagnetic interference potential...

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Sensors & Instruments Solutions Guide - 5

INTRODUCTION | Page 1-5 Process Control and Building Automation Minco temperature and humidity sensors and instruments are used in process and HVAC/R applications in the most critical environments. Our sensing solutions achieve the lowest total cost of ownership (TCO) while maintaining accuracy, reliability and ease of installation. Machinery and Motor Protection Minco RTDs and Thermocouples are used worldwide to safeguard valuable rotating apparatus machinery. Accurate and fast-responding temperature measurement provides overtemperature protection, and our sensors can be manufactured to...

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Sensors & Instruments Solutions Guide - 6

Page 1-6 | Solutions for Optimal Performance Minco offers the perfect fit for any temperature and humidity sensing application. From miniature detectors to 100 foot averaging thermometer and heavy duty probe assemblies, our selection lets you choose the best model for your needs. Sensing technology options provide flexibility Minco can supply sensors to work with nearly any type of instrument option. • Resistance Temperature Detectors (RTDs) • Platinum RTDs with wide range of TCRs • Range from 0.00375 to 0.003927 • 0.00385 (Minco element "PD") is most popular • Nickel, copper, and...

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Sensors & Instruments Solutions Guide - 7

INTRODUCTION | Page 1-7 Lamination Minco’s winding and lamination technology enables manufacture of flat, flexible sensors in any size or shape. The custom Thermal-Ribbon™ below has a wire element to average temperatures over its entire area. Testing Minco has complete in-house testing and metrology equipment to meet stringent quality requirements: • NIST traceable calibrations • Hydrostatic testing of thermowells • Helium leak testing • Automated resistance measurement • Humidity testing Designing for accuracy How accurate is a temperature sensor? To many, the answer to this question is...

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Sensors & Instruments Solutions Guide - 8

Page 1-8 | Temptran™ Transmitter Solutions Why use Temptrans? Long distance accuracy Temptran transmitters amplify the low-level signals from RTDs or thermocouples to an industry-standard 4 to 20 mA current signal proportional to temperature or HART® Protocol/output. Unlike resistance or voltage, current signals are immune to resistance in extension wires and stray electrical noise. This lets you receive accurate signals from a sensor located thousands of feet away. The 4 to 20 mA or HART® output signal and DC power share the same wire pair. You don’t need to run power wires to every sensor...

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Sensors & Instruments Solutions Guide - 9

INTRODUCTION | Page 1-9 Custom and Integrated Solutions Minco operates four different product divisions, all coordinated in the same facility for faster, seamless integration that can decrease your time-to-market. This makes us unique in our ability to customize and integrate components into turnkey assemblies and complete solutions. All of our components can be designed, manufactured, and integrated to perfectly fit your application while providing matched system accuracy. Custom Solutions Minco’s customized products provide an affordable solution to meet your exact specifications. We work...

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Sensors & Instruments Solutions Guide - 10

Page 1-10 | RTD, Thermocouple, or Thermistor? Resistance temperature detectors (RTDs) An RTD sensing element consists of a wire coil or deposited film of pure metal. The element’s resistance increases with temperature in a known and repeatable manner. RTDs exhibit excellent accuracy over a wide temperature range and represent the fastest growing segment among industrial temperature sensors. Their advantages include: • Temperature range: Minco models cover temperatures from -260 to 650°C (-436 to 1202°F). • Repeatability and stability: The platinum resistance thermometer is the primary...

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Sensors & Instruments Solutions Guide - 12

Page 1-12 | Because an RTD is a resistance type sensor, resistance introduced by connecting copper extension wires between the RTD and control instrument will add to readings. Furthermore, this additional resistance is not constant but increases with ambient temperature. To estimate leadwire error in 2-wire circuits, multiply the total length of the extension leads times the resistance per foot in the table below. Then divide by the sensitivity of the RTD, given in the next two pages, to obtain an error figure in °C. For example, assume you have connected 100 feet of AWG 22 wires to a 100 Ù...

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Sensors & Instruments Solutions Guide - 15

INTRODUCTION | Page 1-15 TCR differentiates RTDs by their resistance/temperature curves. Sometimes called alpha ( á ), it is specified in various ways by different manufacturers. In this guide TCR is the RTD’s resistance change from 0 to 100°C, divided by the resistance at 0°C, divided by 100°C: For example, a platinum thermometer measuring 100 Ù at 0°C and 139.11 Ù at 100°C has TCR 0.00391 Ù/Ù/°C: For a copper RTD, 10 Ù at 25°C, TCR is: Stated another way, TCR is the average resistance increase per degree of a hypothetical RTD measuring 1 Ù at 0°C. The most common use of TCR is to...

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