KROHNE OPTIMASS 7300C - Temperature Limits for Flowmeters; General Temperature Considerations; Temperature Limits for MFC 300 F & MFC 300 F T6

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OPTIMASS
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TEMPERATURE LIMITS
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100 Basic IO
488, 4C8 to 4K8
688, 6C8 to 6K8
788, 7C8 to 7K8
Modular IO and Module Carrier with 1 module
pulse / status or control in
888, 8C8 to 8K8
B88, BC8 to BK8
C88, CC8 to CK8
Modular IO and Module Carrier with 1 module
pulse / status
D88 to DP8
E88 to EP8
Profibus PA or Foundation Fieldbus and
Module Carrier with 1 module (all modules)
F80,
FCO to FKO
Profibus DP and Module Carrier with 1 mod-
ule Pulse / Status or Control In
G88 to GP8
MODBUS IO and Module Carrier with 1 mod-
ule (all modules)
GCC to GKC, GCE to GKC
GCF to GKF
HCC to HKC, HCE to HKC
HCF to HKF
Modbus IO and Module Carrier with 2 module
pulse / status or control in
200 300 Exi IO
2.1 General
Due to the influence of the media temperature, mass flow sensors and compact mass flow
meters are not allocated to any fixed temperature class. For allocation regarding the non-insu-
lated and heated/insulated versions, please refer to the tables below.
The temperature limits below apply under the following conditions:
• The flowmeter is installed and operated in accordance with the installation directions given
in the Installation and Operating Instructions.
• The flowmeter is not heated up by any additional heat radiation (direct solar radiation, heat
from adjacent plant parts) so causing it to operate above the permissible ambient tempera-
ture range.
• Insulation is not hindering free ventilation of the mass flow converter housing.
2.2 MFC 300F & MFC 300F T6
The MFC 300F mass flow converter is suitable for temperature classes T6….T1 with a Max
Surface Temperature T80 °C. w ith the following restictions on ambient temperature:
1 Aluminium converter housing:
•
I/O options listed in the table below: Tamb: - 40 °C...+65°C
•
I/O options not listed in the table below: Tamb - 40 °C...+60°C
2 Stainless steel converter housing:
•
Tamb: - 40 °C...+55 °C
AD OPTIMASS 300_010 Haz Areas Rev 01.qxp 05/03/2014 13:24 Page 17