9
The Smart Monitor provides an under speed switch by monitoring 6-3,000 pulses per minute
(PPM) and has a user-programmable 0-30 second ramp-up timer . The Smart Monitor is
designed to be located in an electrical panel or O .E .M . control box . A removable plate allows for
mounting to a DIN rail . The digital display shows the current PPM in real time . This eliminates
setting “guesswork” by constantly showing the actual PPM being monitored .
The digital display shows “RPM” next to the monitored speed . This can be misleading with a 2 or
6 pulse Smart Roll, as the monitor is actually displaying pulses per minute (PPM) .
As with any electrical equipment, the Smart Monitor should be installed by trained personnel
using appropriate safety practices per the National Electric Code, including electrical disconnect
and lockout practices reference ANSI Z244 .1 .
This device is not intended for use in hazardous areas as defined by the NEC articles 500-504 .
Intrinsically Safe Smart Monitors are not presently available .
Several models of the Smart Monitor are available . This section will show wiring for the 120VAC
model part number 37543 .
Specification – 37543 Smart Monitor 120VAC
• AC Input: 120 VAC 10 W
• Fuse Protected: 1 amp
• Speed Range: 6-3000 pulses per minute
• Relay Contacts: DPDT 5 amp @ 120VAC
• Safety Delay: 1 second
• Response Time: 1 second or less
Additional models of the Smart Monitor are available .
Specifications for these are shown in the appendices:
• Part number 37545 Smart Monitor 120VAC 4-20mA output
• Part number 47268 Smart Monitor 9-36 VDC
• Part number 47269 Smart Monitor 220VAC 4-20mA output
1 . Mount the Smart Monitor inside and existing control panel or other suitable
protective enclosure . See Figure 4 .1 for Smart Monitor mounting dimensions .
2 . Disconnect AC power before proceeding with installation .
3 . Table 4 .2 shows connection details for the terminal strip .
FIGURE 4 .1: 37543 Smart Monitor dimensions .
TERMINAL
CONNECTION
FRONT
1
NO CONNECTION
2
NO CONNECTION
3
NO CONNECTION
4
NO CONNECTION
5
NO CONNECTION
6
NO CONNECTION
7
Sensor Input (+)
8
Sensor Input Common (-)
BACK
9
N/C (2)
10
Common (2)
11
N/O (2)
12
N/C (1)
13
Common (1)
14
N/O (1)
15
AC Input (N)
16
AC Input (H)
FIGURE 4 .2:
37543 Smart Monitor terminal connections .
WIRING THE SMART MONITOR
