Display, Keyboard And Auxiliary Power; Certificates And Approvals - Siemens 7MF8.23 Series Compact Operating Instructions

Design with flush-mounted diaphragm
Electrical connection
Wetted parts surface quality

Display, keyboard and auxiliary power

Display and user interface
Keys
Display
Auxiliary power U
H
Terminal voltage at transmitter
Ripple
Noise
Auxiliary power
Separate supply voltage
Bus voltage
● Without
● For intrinsically safe operation
Current consumption
● Max. basic current
● Starting current ≤ basic current
● Max. current in event of fault
Error shut-down electronics (FDE)
fitted

Certificates and approvals

Certificates and approvals
Classification according to Pressure
Equipment Directive (PED 97/23/EC)
Water, waste water
Explosion protection
● Intrinsic safety "i"
Identifier
Permissible ambient temperature
SITRANS P300 (7MF8.23.. 7MF8.24.. 7MF8.25..)
A5E03434761-01, 08/2011
Cable inlet via the following glands:
● M20 x 1.5 (plastic)
● M20 x 1.5 (metal with shield support)
R values ≤ 0.8 μm (32 μ-inch)/welded seams R
a
(process connections in accordance with 3A; R
welded seams R ≤ 0.8 μm (32 μ-inch))
a
3 for on-site programming on the device itself
● With or without integrated display (optional)
● Cover with inspection window (optional)
HART
● 10.5 V ... 42 V DC
● In the case of intrinsically safe
operation 10.5 V ... 30 V DC
U ≤ 0,2 V (47 ... 125 Hz)
SS
U ≤ 1.2 V (0.5 ... 10 Hz)
eff
–
–
–
–
–
–
–
–
HART
● For gases of Fluid Group 1 and liquids of Fluid Group 1; meets requirements
of Article 3 Para. 3 (good engineering practice)
In preparation
PTB 05 ATEX 2048
II 1/2 G Ex ia/ib IIB/IIC T4, T5, T6
-40 ... +85°C (-40 ... +185°F) temperature class T4
-40 ... +70°C (-40 ... +158°F) temperature class T5
-40 ... +60°C (-40 ... +140°F) temperature class T6
≤ 1.6 μm (64 μ-inch)
a
values ≤ 0.8 μm (32 μ-inch)/
a
PROFIBUS PA or Foundation Fieldbus
–
–
–
Bus-powered
Not necessary
9 ... 32 V
9 ... 24 V
12.5 mA
Yes
15.5 mA
Yes
PROFIBUS PA or Foundation Fieldbus
29