ABB TZIDC, Manual, Page: 14 / 48

14 TZIDC DIGITAL POSITIONER | DS/TZIDC-EN REV. G
—
… Specification
Communication
• HART protocol 5.9 (standard); optionally HART®7.4
• Local connector for LCI adapter
(not in explosion protection area)
• HART communication via 4 to 20 mA signal line with HART
compatible modem.
Environmental conditions
Ambient temperature range
During operation, storage, and
transport − 40 to 85 °C (−40 to 185 °F)
Limit monitor with proximity switches
SJ2-SN −25 to 85 °C (−13 to 185 °F)
TZIDC remote sensor − 40 to 100 °C (−40 to 212 °F)
* Increased temperature range only with TZIDC Remote Sensor.
Relative humidity
During operation with housing closed
and air supply switched on 95 % (annual average),
condensation permissible
Transport and storage 75 % (annual average)
Safety Integrity Level
Applies to applications with single-acting and depressurizing
pneumatics.
The positioner meets the following requirements:
• functional safety in accordance with IEC 61508
• Explosion protection (depending on the version)
• Electromagnetic compatibility in accordance with EN
61000
Without the input signal, the pneumatic module in the
positioner vents the actuator and the spring installed in it
moves the valve to a predetermined end position (OPEN or
CLOSED).
SIL specific safety-related characteristics:
Product SSF PFDav λdd + λs λdu
TZIDC with supply current
0 mA 94 % 1.76 * 10 -4 651 FIT 40 FIT
For details refer to the Management Summary in the SIL
Safety Instructions 37/18
- 79XA.