• 2 channels, 10-1000Hz Frequency Range
• Compatible with: TRV-18, TRV-19, SLD121B-M8, SLD121B-UNF
• Max. cable length: 50m
• Vibration Monitoring Modules (VMM) are programmable converters which supply a 4-20mA signal
• 4-20 mA output can go to display module, to a PLC or to a computer controlled monitoring system

The CMM system is a permanently installed, continuous condition monitoring system, consisting of transducers, converters, and combined display and control modules.

The Vibration Monitoring Modules (VMM) are programmable converters which supply a 4-20 mA signal proportional to the RMS-value of vibration velocity. There are four versions:

• VMM-14: 1 channel, frequency range 10 - 1000 Hz
• VMM-15: 1 channel, frequency range 3 - 1000 Hz
• VMM-20: 2 channels, frequency range 10 - 1000 Hz
• VMM-21: 2 channels, frequency range 3 - 1000 Hz

The frequency range of 3 to 1000Hz is suitable for machines with rotational speed down to 180rpm. The measuring range can be DIP switch set to either 0 to 5, 0 to 10, 0 to 20 or 0 to 40mm/s. The 4-20 mA output can be supplied to a display module type DMM, to a PLC or to a computer controlled monitoring system (e.g. SPM's CMS System).

A transducer line fault causes an output of <1 mA. If this should interfere with PLC operations, the min. output can be jumper set to 4mA, individually for each channel. The vibration transducer is connected via coaxial cable with TNC connectors. The module is wall mounted with 4 screws 4mm and supplied with 12 to 24 V DC. The cable inlet is tight for cable diameters 5.5 to 10mm.