KROHNE BM 70 A_P EN - Manual (Page 74)

Installation and operating instructions BM 70 A/P Page: 74 11/00
Annex B: Type code / nameplates
Type code
See nameplate on signal converter and flange system (places not needed in the type code may be omitted):
BM70 . . / . / . - E Ex
1 2 3 4 5 6
1: Tank level gauge
2: Signal converter series
70A : Advanced
70P : Precision
700 : Low Cost
702 : 2-wire
3: Symbol for type of protection for the signal outputs
i : intrinsically safe I/O function
unassigned : non intrinsically safe I/O function
4: Symbol for type of protection for the terminal compartment
E : terminal compartment in Increased Safety “e“ (standard)
D : terminal compartment as Flameproof Enclosure “d“ (option)
unassigned : intrinsically “ia“ (BM 702)
5: Ambient temperature range
S : Extended range –40°C ... +55°C
unassigned : Standard range –20°C ... +55°C
6: Territory of application for explosion protection certification
E : Europe (EG, CENELEC)
7: Safety function
Ex : explosion-protected electrical equipment
Kennzeichnung des Flanschsystems (siehe Flansch-Datenschild):
..(1).. ..(2).. ....(3)...... nicht-explosionsgeschützte Ausführung
..(1).. ..(2).. ....(3)...... – E Ex ..(4).. explosionsgeschützte Ausführung
(1) Flange system series
V96 : Flange system V96
WS : Flange system Wav-Stick
EA : Enamel antenna system
LP : LP flange system
(2) Material of waveguide window
unassigned : standard (stainless steel)
H : Hastelloy window (T min = -60°C)
(3) Materials of wetted parts
- Flange system V96:
» Antennas and flanges, including coating:
SS
: stainless steel
HB : Hastelly B
HC : Hastelloy C
Ti : Titanium
Ta : Tantalum
Mo : Monel
» Gasket materials:
FFKM : Kalrez™ 4079 or Parofluor™ V8545-75
K2035 : Kalrez™ 2035
K1091 : Kalrez™ 1091
FPM
: Viton™
FEP : FEP-sheathed gasket