Siemens SITRANS F M TRANSMAG 2 Operating Instructions Manual page 32

Connecting
5.4 Step 3: Connecting terminal box and transmitter
①
②
③
④
Figure 5-7
Terminal Designation
5 Magnetic field current 1
6 Magnetic field current
7 Potential equalization/PE
29 SmartPLUG supply (-5 V)
22 Measuring ground
23 Electrode 1
24 Electrode 2
30 SmartPLUG-supply (+5 V)
55 Reference voltage
66 Reference voltage
To guarantee the IP67 degree of protection, please use cables with the following external
diameters:
Cable glands M16 x 1.5
Cable glands M20 x 1.5
Cable glands 1/2" NPT
The magnetic power cable must be shielded and fitted with a wire gauge of at least 3 x 1.0
mm
connected mains voltage.
The protective conductor must be marked green-yellow, and must be connected such that it
is the last cable to come loose when pulled.
The electrode cable (including the SmartPLUG supply voltage) must also be shielded and
should have a wire gauge of 7 x 0.5 mm
30
Lock nut
Clamp
Cable shield
Threaded bush
Remote connection
. For the Transmag 2 (7ME5034), the cable must be of a suitable dimension for the
2
Cable color for sensors with
IP68 degree of protection
brown
white
green-yellow
green
red
brown
white
blue
black
yellow
6 to 10 mm
6 to 12 mm
5 to 9 mm
, (e.g. LIYCY).
2
Operating Instructions, 11/2009, A5E00102775-07
Magnetic field
current cable
Electrode cable
SITRANS F M TRANSMAG 2