FCI ST75 - Hazardous Area Conditions

Fluid Components International LLC ST75/ST75V Mass Flow Meter
This page is subject to proprietary rights statement on last page 18 06EN003368 Rev. G
Specic Conditions of Use per FM16ATEX0008X
1. The ambient temperature range and applicable temperature class of the sensor probe is based on the maximum process tem-
perature for the particular application as follows; T6…T1 for T
ambient
of -40 °C to +65 and T
process
of -40 °C to +260 °C. Probe
assembly design temperatures are part number dependent. Low temperature models have design temperatures from -40°C to
+121°C. Medium temperature models have design temperatures from -40 °C to +260 °C.
2. Process Temperature: Maximum process temperature range is -40 °C to +260 °C. Process temperature varies for ow element
installed. The relationship between the temperature class, the maximum surface temperature and the process temperature is as
follows:
Sensing Element:
T6 / T85°C for a process temperature range of -40 °C to +39 °C.
T5 / T100°C for a process temperature range of -40 °C to +54 °C.
T4 / T135°C for a process temperature range of -40 °C to +89 °C.
T3 / T200°C for a process temperature range of -40 °C to +154 °C.
T2 / T300°C for a process temperature range of -40 °C to +177 °C.
T1 for a process temperature range of -40 °C to +260 °C.
3. Consult the manufacturer if dimensional information on the ameproof joints is necessary.
4. The painted surfaces of the mass ow meter may store electrostatic charge and become a source of ignition in applications
with a low relative humidity <~30% relative humidity where the painted surface is relatively free of surface contamination
such as dirt, dust, or oil. Guidance on protection against the risk of ignition due to electrostatic discharge can be found in IEC
TR60079-32 (in preparation). Cleaning of the painted/unpainted surface should only be done with a damp cloth.
5. The probe when remotely located from the enclosure has ying lead conductors that requires the remote probe to be connect-
ed to a suitably certied Ex d or Ex e terminal box for connecting to the external supply circuit.
6. Customer to supply wire rated 10 °C minimum above maximum ambient temperature of installation location to a suitably
certied Ex d or Ex e terminal box.