The TTF300 is available with the HART, PROFIBUS PA and FOUNDATION Fieldbus communication protocols. The TTF300 has global approvals for explosion protection up to Zone 0. Safety-relevant applications up to SIL 3 (redundant) are supported in accordance with IEC 61508. The TTF300 is approved for custody transfer measurements by MID certificate in accordance with the Measuring Instruments Directive 2014/32/EU.

Data

● Two universal sensor inputs, each for RTD, thermocouple, Ω, mV

● Functional safety SIL 2 / SIL 3 in accordance with IEC 61508 (HART variant)

● Various sensor error-calibration possibilities
  – One point, two point, Callendar-van-Dusen, freestyle characteristics with 32 supporting points 

● Sensor backup / automatic sensor redundancy switching (2 x Pt100 3-wire connection)

● Output signal
  – 4 to 20 mA, HART
  – PROFIBUS PA 3.01
  – FOUNDATION Fieldbus ITK 5.x

● Accuracy 0.1 %, long-term stability 0.05 % per year

● Wire break / corrosion monitoring in accordance with NE 89

● Extended diagnostics in accordance with NE 107

● IP 66 / IP 67, NEMA 4X aluminum or stainless steel field-mount housing

● Large, user-friendly LCD indicator Type B with TTF300 configuration option

● Approvals for explosion protection
  – ATEX, IECEx, zone 0 
  – FM / CSA
  – GOST