Help with Temperature Probes specifications:
Sensed Temperature Range
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| Sensed Temperature | Sensed temperature is the temperature range for which the device is rated for sensing. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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Probe Type
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| Basic Element Used | |||
| Your choices are... | |||
| Thermocouple | A thermocouple consists of two wires, each made of a different homogeneous metal or alloy. The wires are joined at one end to form a measuring junction. This measuring junction is exposed to the fluid or medium being measured. The other end of the wires are usually terminated at a measuring instrument where they form a reference junction. When the two junctions are at different temperatures, current will flow through the circuit. The millivoltage resulting from the current flow is measured to determine the temperature of the measuring junction. They are generally simple, rugged and cover a wide temperature range. | ||
| RTD | Resistance Temperature Detectors are types of thermal resistors - they are electrically conductive elements (typically platinum) that are designed to change electrical resistance in a predictable manner with changes in applied temperature. They are very linear and accurate; however, they are typically more expensive than other temperature detection methods. | ||
| Thermistor | Thermistors are another type of thermal resistor (RTD is the other) - they tend to exhibit a large change in resistance proportional to a small change in temperature. | ||
| Solid State | Solid state or IC temperature sensors are very linear with options of high current or voltage outputs; however they typically are not usable at temperatures exceeding 200 degrees Celsius. | ||
| Fiber Optic | |||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Element Configuration | The number of elements contained in the probe, typically the more elements in the probe the more accurate and expensive the probe is. | ||
| Your choices are... | |||
| Single Element | |||
| Double Element | |||
| > 2 Elements | |||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Probe Configuration
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| Probe Configuration | There are many different probe configurations. Suppliers often designate probes by application or intended use. Custom probes are also available. | ||
| Your choices are... | |||
| Straight Probe | Straight probes measure stationary surface temperatures and can be used in wells. | ||
| Penetration (Needle) Probe | Penetration probes or needle probes are used to measure internal temperatures. | ||
| Flexible Probe | Flexible probes can be manipulated for various temperature measurements. | ||
| Drop Probe | Drop probes are designed for well or underwater temperature measurements. | ||
| Curved Probe | Curved probes are used to measure temperatures on pipes or other curved surfaces. | ||
| Roller or Moving Probe | Roller probes or moving probes measure temperatures on moving surfaces. | ||
| Air Probe | Air probes are designed for air-flow temperature measurements. | ||
| Angled Probe | Angled probes are used for temperature measurement applications inside pipes and angled spaces. | ||
| Surface | Surface probes attach to skin or a flat surface. They are also known as banjo, patch, or bolt-on probes. | ||
| Clamp or Strap Sensor | Clamp probes or strap sensor probes clamp or wrap around the surface to be monitored. | ||
| Flat/Ribbon | Flat probes or ribbon probes are temperature sensors with a flexible membrane. | ||
| Other | Other unlisted or specialized probe configurations. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Additional Probe Specifications
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| Diameter or Width Range | Depending on the probe configuration, this dimension is either the diameter or width of the probe, or the diameter of the object being monitored. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Bare or Insulated Lead Wires | Devices use bare or insulated lead wires. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Plug or Quick Connect | Devices use plugs or quick-connects. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Metal Braided Leads | Devices use metal braided leads. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Integral Connection Head (Thermohead) | Devices use integral connection heads (thermoheads). | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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