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Temperature
Mierij Meteo manufactures equipment for accurate and reliable temperature measurements at any location.
- Air temperature
- (in radiation shield)
- Road surface temperature
- Soil temperature
Temperature sensors
Mierij Meteo has a large number of temperature sensors for various meteorological applications.
Models
- Temperature-sensitive resistors (NTC/PTC)
- Temperature- dependent ICs
- Thermocouples
- Temperature sensors according to customers requirements
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Application Notes:
Inexpensive sensor
Replacement element
For assembly into sheath
Low thermal mass
Suitable for equipment assemblies
Special Options:
A range of standard and special housings is available for element protection
Higher accuracy sensors A, 1/3,1/5,1/10 DIN
Other stranding options
Pt 50, Pt 500, Pt 1000 and Pt 2000, Cu or Ni element
2 or 4 wires
Tagging
RT can be replaced with a thermistor
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Temperature sensor
- resistance and thermoelectric temperature sensors
- for various branch of industry ( cement industry, energy industry, food industry)
- measuring temparature: from -200.. to 1600C
- Atex certificate
Temperature transmitters
- Head-mounted and rail-mounted temperature transmitters
- output signal: 4-20mA or Hart protocol (model LI-24)
- Atex certificate.
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The Model 2A Thermocouple Sensor tube consists of a tube containing a filament heated by the passage of a constant current. A thermocouple is welded to the center of this heated element thereby providing a means of directly measuring the element temperature in terms of voltage output. For any constant value of current through the filament, the temperature of the filament increases as the pressure in the tube is reduced. The thermocouple voltage is directly proportional to the increased temperature of the filament, and thus generates an increase in voltage. Sensitive circuitry includes the thermocouple output directly in microns. The standard sensor tube has nickel-plated, forged-brass housing which makes it capable of withstanding 150 psi overpressure. All thermocouple elements are preoxidized under controlled conditions to provide interchangeability of tubes without recalibration. This process also provides high stability and minimizes the effect of contamination. Stainless steel versions are available.
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Temperature Probes
The Honeywell range of probes provides reliable temperature detection by conversion of temperature to a resistance value. The probes are compatible with the Honeywell Refrigeration range of temperature controllers and monitors.
The probes are available in 2k (two versions), 3k, 5k, 20k and PT1000 variants, and are all designed to operate in, and accurately detect, temperatures between -40°C and +100°C (-40° F and +212°F).
Probe Range
Black NTC 2k resistance @ 25°C (77°F)
Black* NTC 2k resistance @ 25°C (77°F)
Orange NTC 3k resistance @ 25°C (77°F)
Green NTC 5k resistance @ 25°C (77°F)
Brown NTC 20k resistance @ 25°C (77°F)
Red PTC 1k resistance @ 0°C(32°F)
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Type Designation: CRM
Measuring Range: -100 to + 500 ° C
Common Sensor Types: 1 Pt 100 B
Common Sensor Size: 2 x 2.2mm, Thin film
Temperature Coefficient: 0.3850 ohms /° C
Wiring: 3 wire, marked red/red/white
Common Pocket Diameters: Ø 2.0mm to Ø 12.7mm,
Common Insulation: PVC, silicon rubber, PTFE, glass fibre
Common Stranding: 7x0.2
Common Sheaths: 316SS, brass, aluminium
Tail detail: 50mm tails, 10mm tinned
Application Notes:
A very common sensor type
Fast sensor response possible
The enclosure has many possibilities
Highly engineered pockets are possible
Ideal for high volume manufacture and fixing in to original equipment
Very small sizes available
A wide variety of encapsulants for pocket filling
Special Options:
Threaded pocket
Machined high-tolerance metal enclosure
Cable spring relief available
Partial heat transfer paste filling
Duplex
Higher accuracy sensors A, 1/3,1/5,1/10 DIN
Other stranding options
Pt 50, Pt 500, Pt 1000 and Pt 2000, Cu or Ni element
2 or 4 wires
RT can be replaced with a thermistor
IP68 compatible designs
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CA 2001 Resistance Thermometer
These Resistance thermometers are specifically designed for heavy duty temperature sensing applications like ovens, machines and industrial environments where their robust construction ensures a prolonged sensor life. These RTD's are built with a Pt100 detector and available in accordance with IEC class A, B and 1/10B. Optional a two-wire headmounted transmitter can be supplied and also ATEX certification for areas with the risk of an explosion, zone 0, 1, 2, 21 and 22.
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- Sensor Pt 100
- Protection tube made from heat resistant or
- from stainless steelsteel
- Easy transmitter mounting in high doomed connection head
Applications
Dryer, heater,
Recuperators
Boiler, Energy
Chemical engineering
up to 650 °C
Main attributes
Rugged
Good reproducibility
Low ageing
Meets DIN EN 60 751
Class B
different dimensions
2- and 3-wire configuration
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The PT Compact USB is an additional member of the tecsis PT Compact series. The measuring range can be programmed according to the customers demands with especially developed software. The communication between the thermometer and a PC is done via an USB connection. Programming-Kits are not needed.
There are two models of the PT Compact USB. The standard model for temperatures from –50°C up to +200°C and a high temperature model for temperatures up to +600°C, which includes a 100 mm neck tube. The output signal of the PT Compact USB is an analogue 4…20 mA signal.
In order to program the measuring range, it is necessary to remove the measuring insert from the housing. The USB-interface is placed directly on the electronic board of the thermometer.
Precautions have to be taken to avoid ESD-damages, while programming the electronics. You do not have to remove the thermowell of the PT Compact, in order to program the range, thus you do not have to stop your process.
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PRINCIPLE:
The air measurement probes are designed in order to take quickly into consideration a small temperature variation (air) within a bad heat conductor body (air, gaz). That is the reason of the use of an as small as possible instrument which is protected by an open-work tube. Nevertheless, it can be unavoidable to assemble the probe in a full tube, whose walls are very thin (normally 2/10) in case of erodent, dusty or choc environnement. Such precautions must be taken in order to avoid a decrease in the sensitivity of the probe.
INSTALLATION:
Assemble the probe away from the walls in order to eliminate the wall temperature influence. Please, tell us exactly the future application of the probe.
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Some TECNOSOFT temperature dataloggers are provided with external probe with cable. The dataloggers that use this probes are:
TempStick Probe (probes 03, 04, 05, 06 only)
TempStick Square (probes 03, 04, 05, 06 only)
TempGuard (probes 03, 04, 05, 06 only)
TempStick Radio (probes 03, 04, 05, 06 only)
It is possible to request every kind of probe among the listed ones for the dataloggers in the above list. There is a standard probe, in rubber, and different types of food grade probes. For some sensors the length of the cable is customizable when ordered; all the probes are water resistant (IP68 protection degree).
Note: when you order a probe for a datalogger, specifiy, along with the name and/or code of the logger, the code of the probe and the code of the cable too.
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- PT100, PT1000, PTC, NTC
- Liquids and gas application
- Brass or St. Steel probe material
- 1/8" to 3/4" male process connection
- Pmax = 50 bar
- Protection class IP65
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General description:
Multi-purpose temperature probe with 2-1/2" (64 mm)-long stainless steel housing.
Use to measure temperature of air, soil, or water. Add up to four probes to a single Leaf & Soil Moisture/Temperature Station. Includes 15' (4.6 m) direct-burial cable.
Compatible with both original Vantage Pro and Vantage Pro2.
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Temperature
The Hydrolab temperature sensor is a 30k ohm variable resistance thermistor. The temperature sensor is included with every Hydrolab sonde.
Features:
- 316 Stainless Steel, 30k ohm thermistor
- Variable resistor
Benefits:
- Provides critical compensation for Dissolved Oxygen, Conductivity, pH, and nutrient sensors
- Compliant with EPA170.1 and SM2550B
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Such sensors are designed for use in potentially explosive atmospheres in compliance withe the 94/9/CE European Directive.
"i" protection concept - Intrinsic safety - demands that a Zener barrier or a galvanic isolator limits the energy delivered to the circuit in order to prevent any arc or spark from arising.
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Such thermocouples are suited for immersion in the melting materials. They are therefore protected by a cast iron, silicon carbide or Sialon protecting tube. The choice of the material depends on the requested performances.
Each one of these protecting tube materials holds advantages and drawbacks as far as mechanical or thermal resistance or longevity are concerned. Environmental and operating conditions are key elements when it comes to choosing the right material. Protecting tubes offering good mechanical resistance are for instance recommended in high capacity melting ovens whereas protecting tubes with high resistance to corrosion are best suited for temperature
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