Mettler Toledo IND780 Guia De Instalacion página 32

IND780 PDX digital load cell field circuit parameters from control drawing 64069877:
Load cell field circuit parameters from model SLC820 POWERCELL PDX load cell control drawing:
Default load cell cable values from IND780 terminal control drawing 64069877:
Now, compare these values using the formulas provided in the previous section of this chapter and
determine if all three criteria pass or fail. The values for the Power, CANBus listening, and CANBus
2-12 METTLER TOLEDO IND780 Division 2 and Zone 2/22 Installation Guide
Power
V or U = 12.6 VDC
oc o
I or I = 1181 mA
sc o
P = 14.9 W
o
C or C = 59.4 µF
a o
L or L = 200 µH
a o
CANBus
Listening
V or U = 26.8 VDC V
max i oc
I or I = 4 mA
max i
C = 0.602 nF
i
L = 0 µH
i
Power
V or U = 26.4 VDC
max i
I or I = 60 mA
max i
C = 11 nF
i
L = 0 µH
i
CANBus
Listening
V or U = 26.8 VDC V
max i oc
I or I = 4 mA
max i
C = 0.602 nF
i
L = 0 µH
i
C = 60 pF / foot
cable
L = 0.2 µH / foot
cable
Talking
or U = 5.277 VDC
o
I or I = 200 mA
sc o
P = 1.06 W
o
C = 1000 µF
a
L = 2 mH
a
Talking
or U = 5.277 VDC
o
I or I = 200 mA
sc o
P = 1.06 W
o
C = 1000 µF
a
L = 2 mH
a
64063214 | 07 | 02/2018