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SITRANS T Temperature Measurement Compact and Head Transmitter

SITRANS TH320/420

The reliable with sensor backup function

ITRANS TH320 and TH420 combine perfect measurement and intelligence at any temperature and condition. Real reliability is guaranteed, for example, by the dual sensor input of the TH420 incl. 4-wire sensor connection and hot backup function. In case of a sensor failure, the transmitter automatically switches to the second sensor, and the values​​continue to be recorded seamlessly and without loss.

The SITRANS TH320/420 Advantage

  • High availability during measurement by hot backup function (SITRANS TH420)
  • High reliability and long-term stability – sensor trim (Callendar-van-Dusen) and sensor drift detection (SITRANS TH420 only) for high accuracy and accelerated calibration time
  • Avoidance of production stop because of measurement failures
  • Best cost-benefit ratio for facility management
  • Cost reduction through anticipatory maintenance
  • Withstanding safety-critical environments – Extended temperature range up to -50°C and SIL2/3 approvals

Technical Specifications

SITRANS TH320/420
Input
Resistance thermometers, thermocouples, resistance-type sensors, DC sources
Output
4 … 20mA (SITRANS TH320), HART (SITRANS TH320/420)
Operational temperature
Standard: -50 … +85 °C (-58 … +185 °F)
SIL: -40 … +80 °C (-40 … 176 °F)
Approvals
ATEX, IECEx, FM, CSA
EACEx, NEPSI, Inmetro
Certificates
SIL 2/3

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