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Modular MECASON Technical Specifications


Modular Mecason



Designed to monitor those machines requiring an instantanous reaction to any evolution, the modular electronics units assure uninterumpted monitoring for each measurement point.
These modules are also the most economic solution in those cases where only one or two points are needed. With its 4-20 mA analog output offers a means by which the user can adapt the process parameters according to machine behaviour.
To facilitade their intallation together with other industrial electric components, the modular units feature industry standard housings for DIN rail sna-on installation.

SOME APPLICATIONS

Monitoring fo bearings, gearboxes, pistons compressor, detection of fluide passage inpipes, confirmation of valve closure, etc... The modular units should be used there where the input scanning deads times of the CBN 30 are too long to ensure an effective monitoring.

Two modular unit versions are available RBV with relay outputs, and TBV with 4-20 mA analog output.

RBV Module
This modular units features two relay outputs. The first outouts signals a defective measurement or a passage of the first high level alarm (warning) and is wired in positive security. The second output signals the passage of the second high alarm level (emergency) and is often used to shut-down automatically the machine. All alarms levels are user adjustable.
The limits are sets in relation to an initial level adjusted b the user at the beginning of monitoring, witch forms the base of the measurement and is associated with a "good" machine operation.

TBV module
This modular unit functions as a convrter/transmitter with a 4-20 mA analog output proprtional to the measurment noise level. this module is especially well adapted for use together with a PLC. The generation of the alarms and the storage of the measured values being managed by the PLC.
An initial gain adjustment definies the "good" machine operation noise level. Any variation of this initial level is transmitted proportionnally and in real time via the 4-20 mA output.

According to the application at hand, the sensor can be furnished with a protection rating of IP 65 or watertight to a depth of 50 meters. For applications in the intrinsic safety zones, sensor with the intresic safety certification EEX ia T5 are available. This certification implies the use of a Zener barrier for each sensor, which must be installed between the sensor and the electronics unit and outside of the explosive zone.

TECHNICAL SPECIFICATION

POWER SUPPLY MODULE : ABW
Maximum power 8 V.A.
Maximum number of modules served 1 to 8
Plug-on scew terminal connections 2,5 mm2
Supply voltage
  • standard
 220 V 50 Hz
  • upon demand
 127, 48, 24 V 50 Hz
Electric protection fus 5*20 with varistor
Housing polyamide 6.6, snap-on mounting for DIN rails
Dimensions 110*76*90 mm
Mass approx. 500 g

MODULE RBV
Power supply 12 V. DC regulated
Alarm output delay approx. 1 second
Anlog test output 0 - 1000 mV via plugs banana dia. 2 mm
Plug-on scew terminal connections 2,5 mm2
Operating temperature -10 to 50°C.
Housing polyamide 6.6, snap-on mounting for DIN rails
Dimensions 75*25*90 mm
Mass approx. 100 g
Relay outputs,
  • maximum switching voltage
 125 volts
maximum switching current 1 Amp
  • maximum switching power
 60 VA AC, 50 W DC

MODULES TBV :
Power supply 12 V. DC regulated
Maximum resistance at output 4-20 mA 400 Ohms
Anlog test output 0 - 1000 mV via plugs banana dia. 2 mm
Plug-on scew terminal connections 2,5 mm2
Operating temperature -10 to 50°C.
Housing polyamide 6.6, snap-on mounting for DIN rails
Dimensions 75*25*90 mm
Mass approx. 100 g

SENSORS :
Pass band (capture and electronics) 100 to 12000 Hz
Operating temperature -20 to 60°C.
Protection rating I.P. 65
( upon demand water tight to 50 m)
Installation hardware washer and scews CHC 5
Mass excuding cable approx. 50 g
Wire connections per co-axial 0.22 mm2, insulation plastified PVC
Sensor shaft stainless steel 316L, shrink tube.