KROHNE OPTISOUND 3050 Ex ES - Manual (Page 19)

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3. Technical data
3.1 Electrical versions and data:
3.1 OPTISOUND 3040/3050 C VF3*4.GX***VD**X with integrated oscillator SN64-66H:
Supply voltage:............................
(terminal 1, 2 in the connection compartment) U = 20... 253 AC, 50/60Hz or U = 20... 72V DC
Um = 253V
Signal circuit.......................................
(terminals 3, 4 in the connection compartment) 4 - 20mA with superimposed HART signal
Um = 253V
4. Application conditions
4.1 Permissible ambient temperature:
4.1.1 On the transducer, category 1D or 2D:
OPTISOUND 3040 C
OPTISOUND 3050 C -20°C... +80°C
-20°C... +80°C
4.1.2 On the electronics housing, category 2D:
Permissible ambient temperature -40°C... +60°C
4.2 Surface temperature increase:
4.2.1 On the transducer, category 1D or 2D:
OPTISOUND 3040 C
OPTISOUND 3050 C
Process temperature + 30K
Process temperature + 25K
4.2.2 On the electronics housing in zone 21:
Limited by temperature protection to +98°C
OSOUND3040-3050C-G_V 30667-DE-050920 19