Pulse And Vibration Modules; Mtl4531 - Vibration Transducer Interface - Eaton Crouse-Hinds Series Instruction Manual

INM 4500/4600 Rev 12
DRAFT - 22 March 2018
6 .3

Pulse and Vibration modules

Single and dual channel modules are available to transfer vibration probe signals from
a hazardous area to a safe one. Similarly, pulses from a switch, proximity detector, current
pulse transmitter or voltage pulse transmitter, located in the hazardous area, can be safely
transferred to the safe area.
6 .3 .1

MTL4531 - Vibration Transducer Interface

Single channel
The MTL4531 repeats a signal from a vibration sensor in a hazardous area, providing an
output for a monitoring system in the safe area. The interface is compatible with 3-wire,
eddy-current probes and accelerometers or 2-wire current sensors, and selection of the
mode is made with a switch located on the side of the module.
Hazardous area
Vibration
3-
wire
transducer
Vibration
2-
wire
transducer
MTL4531
PWR
Figure 6 .21:
Terminal
Top label for
MTL4531
1
2
3
7
8
13
14
2-/3-wire transducer setting switch
Mode
2-wire (3 .3mA)*
3-wire (20mA)
To enable optimum heat dissipation the recommended orientation for mounting is with
the module vertical, i.e. with the vents in the case at the top and bottom.
In any other orientation, i.e. with the module horizontal, then the maximum ambient
Safe area
6
5
4
COM
3
SIG
2
V–
1
3
2
13
1
Function
Transducer power V–
Signal
Common
Signal output 0V
Signal output –ve
Supply –ve
Supply +ve
2-/3-wire
* Note: When using 2-wire
SW
OFF
ON
WARNING! - Revision status 05 and below*
This enables air to flow through the module.
temperature is limited to:
• Close packed = 45°C
• Minimum of one module spacing = 55°C
*Revision status is the 2 digits after the +++ in the barcode
12
11
10
9
–ve
8
Monitor
7
0V
14
20 to 35V dc
Vs+
Vs–
OFF position
ON position
sensors, ensure that
terminals 1 and 2 are linked
as shown in the wiring
diagram above.
37