Condition Monitoring Systems

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35951C/51C Reed Relay IMP/IMC

The 35951C Isolated Measurement Pods (IMP) and the 359551C Isolated Measurement Cards (IMC) both use reed-relay switching. This makes them ideal for applications requiring high inter-channel isolation.

In this simple concept, plant parameters are measured by intelligent, multi-channel modules, called Isolated Measurement Pods (IMPs) or rack mounted mulit-channel cards called Isolated Measurement Cards (IMCs); these are all linked together by a low cost twisted pair communications network called S-Net. The cable is connected through a special interface to the host computer, which has data acquisition software to configure and control the IMPs/IMCs and to store and display the data.

A wide range of precise process parameter measurements can be made using built-in sensor energisation, integral signal conditioning and a 16 bit ADC; signal noise is kept to an absolute minimum by using selectable integration times, and drift correction is automatically applied between scans.

The 35951C Isolated Measurement Pods (IMP) and the 359551C Isolated Measurement Cards (IMC) both use reed-relay switching, which makes them ideal for applications requiring high inter-channel isolation; they are capable of measuring up to 250 volts with the optional high voltage connector.

The IMP is housed in a NEMA4/IP55 environmentally sealed package which can be installed directly onto the plant or machinery being monitored, making installation very cost effective, and data and power are supplied from the single twisted pair cable, which can be up to 1500 metres in length. The IMC is designed for use where very high density measurement is required, and up to 14 cards may be housed in a single 5U Eurorack – then yielding up to 280 channels per rack; the rack is in turn housed in and supported by a secondary cabinet or enclosure. Both of these devices us a multi-channel removable connector block which makes installation and exchange simple.