Honeywell touchpoint Pro - Page 59

MAN0923_Issue 3_04/15 Touchpoint Pro
Operating Instructions
59
4. Electrical Installation
+V
2 Wire Detector
Barrier
Touchpoint Pro
+24 Vdc
4-20 mA
SIG
-V
101 Ω
0 Vdc
Figure 4.12 Two wire device with a barrier
Note: For intrinsically safe (I.S.) eld devices, please refer to the device manufacturer’s instructions for
details of suitable approved I.S. barriers and interconnections.
2 Wire Detector
4-20 mA
Touchpoint Pro
+24 Vdc
SIG
-V
101 Ω
0 Vdc
+V
Barrier
Figure 4.13 Two wire device with a barrier