Sofraser MIVI - Appendix C: Specific Conditions of Use for Atex and Iecex MIVI-Si

MIVI Technical Manual
REF: 379/4 24
Appendix C: SPECIFIC CONDITIONS OF USE FOR ATEX AND
IECEX MIVI-SI
Intrinsically Safe installation
Other specific conditions:
The equipment can be only connected to intrinsically safe certified associate equipment. These
combinations must be compatible as regards with the intrinsic safety rules (see electrical
parameters).
Approval’s ambient temperature limits:
- Sensor body: -40°C to +200°C (200°C version) or -40°C to +300°C (300°C version)
- Cable: -40°C to +100°C
Cable length must be defined in such a way that total capacitance of sensor and cable does not
exceed the maximum permitted capacitance of certified power supply.
To avoid the effects of process temperature and other thermal effects, care shall be taken to ensure
that the temperature at sensor body and cable parts does not exceed assigned ambient
temperature range.
The temperature classification depends on the ambient temperature as follows:
Temperature class
Ambiant temperature
With Pt100 sensor Without Pt100 sensor
T6 -40°C ≤ Tamb ≤ +35°C -40°C ≤ Tamb ≤ +65°C
T5 -40°C ≤ Tamb ≤ +50°C -40°C ≤ Tamb ≤ +80°C
T4 -40°C ≤ Tamb ≤ +85°C -40°C ≤ Tamb ≤ +115°C
T3 -40°C ≤ Tamb ≤ +150°C -40°C ≤ Tamb ≤ +180°C
T2 -40°C ≤ Tamb ≤ +245°C -40°C ≤ Tamb ≤ +275°C
T1 -40°C ≤ Tamb ≤ +300°C -40°C ≤ Tamb ≤ +300°C