9
Power Supply Circuit Data Circuit
Ui = 16.5V Ui = 11.8V
Ii = 340mA Ii = 40mA
Pi = 1.3W Pi = 120mW
Ci = 35nF Ci = 35nF
Li = 10uH Li = 10uH
1.5 OPTIMASS 2000 / 2010C / 2300C
The OPTIMASS 2000 / 2010C mass flow sensors / mass flow meters are designed with
intrinsically safe protection type. The marking for the OPTIMASS 2000 / 2010C is as follows:
II 1/2 G Ex ib IIC T6...T1 Ga/Gb
II 2 D Ex ib IIIC T150°C Db
The input connections to the OPTIMASS 2010C for use with associated apparatus have the
following maximum values:
The marking for the compact OPTIMASS 2300C is as follows:
For non-Ex i signal outputs
Ex d connection compartment Ex e connection compartment
II 1/2 G Ex d [ib] IIC T6....T1 Ga/Gb II 1/2 G Ex de [ib] IIC T6....T1 Ga/Gb
II 2 D Ex t IIIC T160°C Db II 2 D Ex t IIIC T160°C Db
For Ex i signal outputs
Ex d connection compartment Ex e connection compartment
II 1/2(1) G Ex d [ia/ib] IIC T6....T1 Ga/Gb II 1/2(1) G Ex de [ia/ib] IIC T6....T1 Ga/Gb
II 2(1) D Ex t [ia Da] IIIC T160°C Db II 2(1) D Ex t [ia Da] IIIC T160°C Db
MA_Haz_Areas_Rev_08_en.qxp 26/07/2012 16:20 Page 9
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