Download Sentry™ Visibility Sensor User's Guide

Sentry™ Visibility Sensor User’s Guide
AC Versions - If TP1, TP3, or TP4 are out of tolerance, measure the voltages from the main AC
Power Supply as shown in Figure 5.4.2-2 and the Table 5.4.2-2 below. Use the power supply
terminal marked “Com” as the ground reference.
Table 5.4.2-2
Name
Wire Color
Tolerance
+V2
Red
15.0 +/-0.5 VDC
COM
Black
15 VDC Return
V3
White
-15.0 +/-0.5 VDC
+5V
Green
5.0 +/-0.25 VDC
Figure 5.4.2-2 AC Power Supply Test Points
1. If the AC Power Supply voltages are within tolerance but the Signal Processor voltages
are out of tolerance, replace the sensor per the general installation instructions in
Section 2.
2. If the AC Power Supply voltages are out of tolerance, replace the AC Power Supply per
the remove & replace instructions in Section 5.4.4.
DC Versions - If TP1, TP3, or TP4 are out of tolerance, measure the voltages from the DC
Power Supply PCB as shown in Figure 5.4.2-3 and Table 5.4.2-3 below.
--- Note --When measuring the TP1 input voltage, use TB1-2 (12 VDC common) as the
reference. For the TP3, TP4, and TP5output voltages, use TP2 of the DC Power
Supply PCB as the ground reference.
Table 5.4.2-3
Test Point
P/N 80002
Tolerance
TP1
10-36 VDC
TP3
+15.0 +/-0.5 VDC
TP4
-15.0 +/-0.5 VDC
TP5
5.0 +/-0.25 VDC
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May 2007