SITRANS P, DS III series (7MF4.33.. 7MF4.34.. 7MF4.35..)
A5E03434645-01, 08/2011
45
Construction for level
Electronics housing
● Copper-free die cast aluminum GD-AlSi 12 or precision cast stainless steel,
mat. no. 1.4408
● Standard: Polyester-based paint
Option: 2 coats: Coat 1: epoxy-based; coat 2: polyurethane
● Stainless steel nameplate
Pressure cap screws Stainless steel
Measuring cell filling Silicone oil
● Mounting flange fill fluid
Silicon oil or a different design
Process connection
● Plus side
Flange as per EN and ASME
● Minus side
Female thread
1
/
4
-18 NPT and flat connection with fastening screw thread M10 as
per DIN 19213 (M12 for PN 420 (MWP 6092 psi)) or
7
/
16
-20 UNF as per EN 61518
Electrical connection Screw terminals
Cable inlet using the following screwed joints:
● Pg 13.5
● M20 x 1.5
● ½-14 NPT or Han 7D/Han 8D connector
1)
● M12 connector
1)
Han 8D is identical to Han 8U.
Display, keyboard and auxiliary power
Display and user interface
Keys 3 for on-site programming directly at the device
Display
● With or without integrated display (optional)
● Cover with inspection window (optional)
Auxiliary power U
H
HART PROFIBUS PA or Foundation Fieldbus
Terminal voltage at transmitter
● DC 10.5 V … 45 V
● In the case of intrinsically safe
operation 10.5 V … 30 V DC
–
Ripple U
SS
≤ 0.2 V (47 … 125 Hz) –
Noise U
eff
≤ 1.2 V (0.5 … 10 Hz) –
Auxiliary power – Bus-powered
Separate supply voltage – Not necessary
Bus voltage
● Not
– 9 … 32 V
● For intrinsically safe operation
– 9 … 24 V
Current consumption
● Max. basic current
– 12.5 mA
● Starting current ≤ basic current
– Yes
● Max. current in event of fault
– 15.5 mA
Error shut-down electronics (FDE)
present
– Yes
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