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DOWESTON® is a premium instrumentation and sensor brand serving customers worldwide. DOWESTON® is dedicated to bringing users a reliable, easy-to-use, efficient and advanced inspection and measurement experience.Here you will find all contact options at a glance:
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DOWESTON ELECTRONIC INTL INC
617 CEPI DRIVE, CHESTERFIELD, Missouri, 63005,United States
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DOWESTON TECHNOLOGIES (UK) LIMITED
291 BRIGHTON ROAD SOUTH CROYDON UNITED KINGDOM CR2 6EQ
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DOWESTON(CHINA) CO,. LTD. ( ASIA)
No.12, Huaxing Road, Jinjiang District, Chengdu, China
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TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter
TA-300 series high performance intelligent temperature transmitter

TA-300 Series

High performance intelligent temperature transmitter
In the process of industrial production, temperature is one of the important parameters to be measured and controlled. TA-300B high performance intelligent temperature transmitter it has imported sensor core, high precision, wide measuring range, reliable and stable performance and many other advantages, the product is explosion-proof design, can be used for explosion-proof occasions, with local display, explosion-proof observation, hydropower industry, thermal power generation, waste incineration, petrochemical, thermal coal boiler and other high school low temperature area temperature measurement.
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Specification
Performance Features
The theory of product:
TA-300A intelligent temperature transmitter is composed of reference unit, R/V conversion unit, linear circuit, reverse protection, current limiting protection, V/I conversion unit, etc. After the amplification of the thermal resistance signal, the nonlinear relationship between temperature and resistance is compensated by a linear circuit. After the V/I conversion circuit, a constant current signal of 4 ~ 20mA with a linear relationship with the measured temperature is output. Thermal resistance transmitter is a kind of temperature detector commonly used in middle and low temperature region.

Application field:
TA-300A intelligent temperature transmitter is suitable for water treatment control equipment, electrical industry, Marine hydraulic equipment, hydraulic and hydropower, chemical, petrochemical industry equipment and thermal coal boiler, pneumatic, hydraulic, cooling system, heating system, automation engineering, etc. The product is suitable for high school low temperature area temperature detector.

Features:
■ On site display, easy observation
■ Soft sheathed cable with anti-vibration measuring plug-in
■ Imported sensor core, high precision and repeatability, temperature compensation

■ Application specific insert length

■ Compact structure, fewer moving parts, cast aluminum alloy shell

■ Withstand pressure, shock and humidity, suitable for installation in harsh field environment

■ HART modem can be used for remote information management, configuration, variable detection, calibration, and maintenance of transmitter type, good indexing/range

■ Small measurement lag in thermal inertia

■ Long service life

Technical parameters
Sensor Standard PT100 Thermal resistor (other optional)
Measure range -270-1800℃
Probe length 20-1000mm
Probe diameter 3、6(standard)、8mm
Output 0-10V、4-20mA、HART
Accuracy A class、B class
Repetition accuracy ≤0.3%FS/year 
Error ±0.3K+0.005XT
Linearity <0.1%
Resolution 0.1K
Temperature effect 0.1K/10K
Response time T50,2.3S  T90,5S
Display Field 4 LED with indicator light
Operating voltage 24V DC
Ambient temperature -20-80℃ 
Working pressure 4.0MPa
Material Shell: cast aluminum alloy
Probe: Stainless Steel 316L (special casing can be customized)
Body:Stainless Steel 304/316L
Compensating cable Silica gel: environment -50~180℃
Metal mesh: environment -20~350℃
Protection class Electrical part IP65, probe part IP68
Electrical connection Junction box terminal connection, M20*1.5 connection hole
Electrical protection Reverse protection, overload protection, short circuit protection
Installation mode Threaded connection, flange connection
Seal Thread seal, manufacturer's standard
Explosion-proof rating Flameproof ExdIICT6
Attachment Optional fireproof sleeve

 

IEC International standard
Thermal resistance type Electrode material Temperature range
PT10 Platinum resistance -200~850℃
PT100 Platinum resistance -200~850℃
PT1000 Platinum resistance -200~850℃
Cu50 Copper resistance -50~150℃
Cu100 Copper resistance -50~150℃
Not sure which Instruments and sensors to choose?
No worries! We understand that getting the perfect Instruments and sensors that meets your needs can be pretty tricky. Our dedicated Engineering experts are here to support you with:
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