Safety Barrier (E Ia); Cleaning Unit - Siemens MAG 1100 Operating Instructions Manual

SITRANS F M
2.5.4

Safety barrier (e ia)

2.5.5

Cleaning unit

2. Technical data
Application For use with MAG 5000/6000 19" and MAG 1100 1100 F and 3100, 3100 P, in
ATEX 2 GD version
Ex approval [EEx e ia] IIC
Cable parameter Group
Electrode IIC
IIB
IIA
During operation: −20 ... +60°C
Ambient temperature
During storage: −20 ... +70°C
Enclosure
Material Standard 19" insert in aluminium/steel (DIN 41494)
Width: 21 TE
Height 3 HE
Enclosure rating IP 20 to EN 60529 and DIN 40050
Mechanical load 1 G, 1-800 Hz sinusoidal in all directions to EN 60068-2-36
EMC performance
Emission EN 50081-1 (Light industry)
Immunity EN 50082-2 (Industry)
Application For use together with MAG 5000 and 6000 19" insert to clean the measuring
electrodes on sensors MAG 1100, MAG 1100F or MAG 3100.
NB: Must not be used with intrinsically safe ATEX sensors
NB: Not be used with sensors with Hastelloy and Tantalum electrodes
NB: Only for measuring electrodes
Cleaning voltage
AC cleaning 60 V AC
DC cleaning 30 V DC
Cleaning period 60 sec. + 60 sec. pause
Relay Switch relay activated when cleaning is in progress
Load 42 V/2 A
Operation Switch relay activated when cleaning is in progress
Automatic Yes
Manual No
Indicator lamps LEDs: "ON" and "CLEANING"
115 ... 230 V AC +10% ... −15%, 50 ... 60 Hz, 7 VA cleaning, 5 VA stand by
Supply voltage and
power consumption 11 ... 30 V DC /11 ... 24 V AC, 50 ... 60 Hz, 7 VA cleaning, 5 VA stand by
During operation: −20 ... +50°C (−4 ... +122 °F)
Ambient temperature
During storage: −20 ... +70°C (−4 ... +158 °F)
Enclosure
Material Standard 19" insert in aluminium/steel (DIN 41494)
Width: 21 TE
Height: 3 HE
Rating IP 20 to EN 60529 and DIN 40050
Mechanical load 1 G, 1 ... 800 Hz sinusoidal in all directions to EN 60068-2-36
Cleaning unit
The Siemens Flow Instruments cleaning unit can be used with MAG 5000 or 6000 in 19" insert non-
CT version.
The cleaning unit can be used in applications where the liner material and subsequently the
electrodes may be coated with deposits. If the coating is electrically insulating, the electrode signal
will be reduced. If the coating is electrically conductive, the electrode signal will be partly short-
circuited and in both cases the accuracy of the meter will decrease (dependent on the type and
thickness of the coating).
Note:
The cleaning unit cannot be used for flammable or explosive media!
Note:
The cleaning unit cannot be used with sensors with Hastelloy and Tantalum electrodes!
Safety barrier & cleaning unit
Capacity in μF
≤ 4.1
≤ 45
≤ 45
Inductance in mH
≤ 1.5
≤ 87
≤ 87
19