Installation
Entek IRD 6687 Protection Monitor
9
LVDT to Monitor Wiring
The following diagrams show the wiring from a linear variable differential transformer
(LVDT) to the backplane of the monitor. Note that you can configure the jumper on the
LVDT to output either more positive or more negative when the plunger is pushed in.
This diagram shows a configuration that allows a more positive reading on the display
(upscale) when the plunger is compressed.
16
18
19
24
23
20
21
22
17
7
10
15
11
12
13
14
9
8
2
6
4
5
3
1
EARTH
NEUTRAL
LINE
43
44
48
45
46
47
32
42
35
38
41
40
39
36
37
34
33
31
29
30
27
28
26
25
C ha nne l 1 In put Si gna l
TYPICAL WIRING FOR MODEL 15383 LINEAR VARIABLE
DIFFERENTIAL TRANSFORMER (LVDT) TO 6600 VIBRATION MONITOR
S ig nal C om mo n
+ 18 VDC
Jumper = more positive
reading on display
when plunger is compressed
+18 VDC
Signal Common
Input Signal
