recommended maximum cable lengths supported by the IND780 POWERCELL MTX option board
using its internal 12VDC supply. These values are for non-hazardous area applications only.
If an external 24VDC power supply is used, up to 24 load cells per terminal with the maximum
cable length of 900 feet is possible.
2.7.3.3.
LED Interpretation
Figure 2-43 indicates the locations of LEDs on the POWERCELL MTX board.
LED
USB
PC
2-30
METTLER TOLEDO IND780 Installation Guide
Table 2-11: Recommended Maximum Cable Lengths
Number of
CMOS/MTX Cells
(meters/feet)
4
6
8
10
12
14
USB
Figure 2-47: POWERCELL MTX LEDs
Table 2-12: POWERCELL MTX LEDs
Color
Slow blink (~1 Hz) indicates no USB communication with Main PCB
Amber
Fast blink (~4 Hz) indicates USB communication with Main PCB is operating properly
Slow blink (~1 Hz) indicates POWERCELL MTX not connected
Amber
Fast blink (~4 Hz) indicates POWERCELL MTX connected
20 Gauge
Number of RAAD
Boxes (350Ω cells)
274/900
213/700
152/500
121/400
106/350
91/300
Function
20 Gauge
(meters/feet)
1
274/900
2
137/450
3
91/300
POWERCELL MTX network
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14
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08/2014