Hazardous Area Configuration For Powercell Pdx Load Cells - Mettler Toledo IND780 Guia De Instalacion

2.7. Hazardous Area Configuration for POWERCELL PDX
Load Cells
Applications that use two terminals require each terminal to be connected to an independent scale
platform. Both IND780 terminals must have a POWERCELL PDX option card.
One terminal operates as a secondary terminal, associating a SICS COM port connection with its
PDX scale.
2-10 METTLER TOLEDO IND780 Division 2 and Zone 2/22 Installation Guide
Table 2-1: Hazardous Area Configuration Table for Div 2, Zone 2/22
(IND780, POWERCELL PDX,no I/O or comm. board options)
4 6
300m (984 ft)
290m (951 ft)
280m (919 ft)
270m (886 ft)
260m (853 ft)
250m (820 ft)
240m (787 ft)
230m (755 ft)
220m (722 ft)
210m (689 ft)
200m (656 ft)
190m (623 ft)
180m (591 ft)
170m (558 ft)
160m (525 ft)
150m (492 ft)
140m (459 ft)
130m (427 ft)
120m (394 ft)
110m (361 ft)
Dark area indicates valid
100m (328 ft)
90m (295 ft) hazardous configuration
80m (263 ft)
using the IND780 terminal's
70m (229 ft)
integral 12V power supply
60m (197 ft)
50m (164 ft)
40m (131 ft)
30m (98 ft)
20m (66 ft)
10m (33 ft)
<33m <55m
108ft 180ft
The configurations indicated in Table 2-1 are confirmed for operation up to 50°C (122°F).
®
Number of POWERCELL
8 10 12 14
Shaded area indicates
configuration using
two IND780 terminals,
two HR cables and two
<73m <91m <109m <120m
240ft 299ft 358ft 394ft
Total Cell-to-Cell Cable Length
®
PDX Load Cells
16 18 20
White area indicates
a custom solution.
Consult factory.
valid hazardous
LPO kits
<142m <164m <186m
466ft 538ft 610ft
64063214 | 07
22 24
<200m
656ft
| 02/2018