ABB FCM2000 Operating Instruction page 82

Fig. 38:
Attention!
!
It is essential that the temperature specifications in the Ex-Approval in Chapter 7.2.2. be observed.
82 FCM2000
Flowmeter Primary
"ib
T
Pressure tight area "d"
"e"
Coriolis
"m" F
PA
• Ignition Type, MC26, MC27
II 1/2G EEx emd [ib] IIC T6 for meter sizes ≥ DN 50 [2"]
II 2G EEx emd [ib] IIC T6 for meter sizes ≥ DN 40 [1-1/2"]
II 2D T115°C...T IP67
fluid
• TÜV 99 ATEX 1443X
Ambient Temperature (−40 °C) −20 °C to +60 °C
•
• The Temperature Classes, a function of the ambient and fluid temperatures, is listed in the EU-Type Examination Certificate.
• The supply voltage value for the converter is listed on the Name Plate.
• The Ignition Type for the output circuits is defined by the external circuits connected. It can be configured as all „intrinsically safe" or
„non-intrinsically safe". A combination of „intrinsically safe" and „non-intrinsically safe" is not permissible. The test voltage for the
output circuits for both Ignition Types is U
• The safety specifications for intrinsically safe circuits may be found in the EU-Type Examination Certificate.
• Care should be exercised to assure that the cover over the supply power connections is correctly installed. For intrinsically safe
output circuits the connection area may be opened.
• It is recommend that the cable connectors, included with the shipment, used for the output circuits correspond to the Ignition
Type: intrinsically safe → light blue; non-intrinsically safe → black.
• The flowmeter primary and the converter housing are to be connected to Potential Equalization.
For intrinsically safe circuits, Potential Equalization is to be maintained along the entire circuit.
• The interior of the meter pipe for all flowmeter primaries in sizes DN 50 to DN150 [2" to 6"] is classified Category 1 (Zone 0), that for
meter sizes ≤ DN 40 [1-1/2"] only corresponds to Category 2 (Zone 1). The Temperature Classes as a function of the ambient and
maximum fluid temperatures are listed in the table.
• If the flowmeter primary is to be insulated, the max, insulation thickness is 100 mm.
The converter housing may not be insulated.
• The corrosion resistance of the meter pipe materials to the fluid must be considered.
Converter Connection Area
31
33
51
41
81
L
1+
= 60 V.
T
„e"
32 Current output, active
34 Current output, passive
52 Pulse Output, passive
42 Contact output, passive
82 Contact input, passive
N 85 V - 252 V
PA
2- 24 V AC/DC
PA
Insulation
The pipeline and the flowmeter primary insulation is to be
installed as follows.
The max. insulation thickness is 100 mm.
8 Start-Up
Output circuit
Supply voltage
D184B111U02