Environmental Conditions; Safety Integrity Level - ABB TZIDC Manual
Digital positioner
Hide thumbs
Also See for TZIDC:
- Operating instructions manual (88 pages) ,
- Commissioning instructions (72 pages) ,
- Commissioning instruction (60 pages)
Table of Contents
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
Limit monitor with proximity switches
SJ2-SN
TZIDC remote sensor
*
Increased temperature range only with TZIDC Remote Sensor.
Relative humidity
During operation with housing closed
and air supply switched on
Transport and storage
−40 to 85 °C (−40 to 185 °F)
−25 to 85 °C (−13 to 185 °F)
−40 to 100 °C (−40 to 212 °F)
95 % (annual average),
condensation permissible
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
TZIDC with supply current
94 %
0 mA
For details refer to the Management Summary in the SIL
Safety Instructions 37/18-79XA.
PFDav
λdd + λs
λdu
1.76 * 10-4
651 FIT
40 FIT
Table of Contents
