Mettler Toledo IND560x Guide D'installation page 68

Any resulting lower voltages must be considered when selecting a control device. Devices from two
manufacturers that have been tested for correct operation with the IND560x and can be connected
directly to the outputs as shown are:
•
•
An example of how to wire to the active outputs is shown in Figure 3-38.
3.4.2.3. Passive Inputs
Using the Discrete I/O option with passive inputs allows connection of an external intrinsically safe
voltage supply (or a standard power supply with barriers) to power switches or other simple
devices to trigger an input. The external power source must meet the requirements of the hazardous
areas approval and entity values must be compared.
Barriers from two manufacturers that have been tested for correct operation with the IND560x and
can be connected directly to the inputs as shown are:
•
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Table 3-11: Approximate Available Active Output Voltages
ASCO – Provide complete ASCO part # PIA8314A300 6-30V when sourcing (FM and ATEX
approvals)
Hoerbiger S-9: PS13950646A-00 and S29: PS13850646A-00 (ATEX approval only)
Pepperl & Fuchs #778
Available Voltage on
Current Draw
0 mA
10 mA
20 mA
30 mA
40 mA
50 mA
Figure 3-38: Active Output Connections
METTLER TOLEDO IND560x Terminal Installation Manual
Active Output
12.3 VDC
11.4 VDC
10.7 VDC
10.0 VDC
9.3 VDC
8.6 VDC
3-29