Measurement units, ranges, warning (alarm), trip levels, sensor sensitivity, band pass filters etc can be set from the password protected front keypad at any time. For a Customer convenience, specified units and ranges will be factory set at time of order. 

The front panel has 100 segment Dual Bar Graph and two rows of 16 character Digital displays. Signals are displayed as a percentage of the Full Scale Range of the Bar Graph, as well as the Warning (Alarm) and Trip values, when selected. This user-friendly feature enables Operators to view the relationship in terms of percentage (%) between the measured value and the warning or trip settings. Actual signal levels in native units are also shown on the Digital Display along with sensor bias/gap voltage and speed (with a tacho signal) by selection. 

• DCS – The system provides industry standard isolated 4-20mA DC signal output per channel for interfacing with Distributed Control System (DCS) as well as RS485/MODBUS connectivity as standard.

• SCADA - The RS232 output is available as an option to SCADA systems.

• Multi-Channel Simultaneous Diagnostics - Taking you Further, BNC connectors are also at the rear back plane of each module for providing buffered Time Wave Form (TWF) signals to any on-line multi-channel simultaneous or scanning diagnostics system. This offers comprehensive turbine diagnostics, applying the Dual Redundancy Parallel Processing (DRPP) architecture that provides greater system reliability.

• Analyzer Outputs – Where applicable, three BNC connectors, one for each channel and the third for tacho/phase reference are located on the front panel for use with a portable dual channel FFT vibration analyzer. Shaft phase measurement is available when a Tacho Module is installed. The same vibration BNC signal sockets are repeated at the rear of the rack. 

The Warning (Alarm) Relay operates when an alarm occurs in any module. One change-over (SPDT) potential free contact rated at 5A resistive @ 230V AC is provided. Normally de-energized (non fail-safe), or field changeable to normally energize (fail-safe). Reset is manual and is actuated only when the signal level goes below the pre-set alarm level. 

The Trip Relay operates when trip occurs in any module. Two change-over (DPDT) potential free contacts rated at 5A resistive @ 230V AC are provided. Normally de-energized (non fail-safe), or field changeable to normally energize (fail safe). Reset is manual and is actuated only when the signal level goes below the pre-set trip level. 

The TX Fail Relay operates when any transducer failure (change in bias voltage) is detected; it is displayed by a flashing bar graph on the front panel of the module. One change-over (DPDT) potential free contact rated at 8A @ 230V AC or 24 V DC is provided. Normally de-energized (non fail-safe), Reset is automatic when fault condition returns to normal. Alarm and Trip relays are deactivated and also the 4-20mA DC output is pulled below 4mA to 2.8mA in TX Fail condition. 

Start-up control bus deactivates Alarm and Trip relays and also pulls 4-20mA DC output below 4mA indicating invalid signal to the DCS. 

90 – 270V AC, 50/60Hz, single phase, 30VA per module.
The Redundant Power Supply can be either 230V AC or 110V AC or +48V DC or +110V DC or +220V DC. 

Each vibration module is calibrated to National Standards via the IRD Mechanalysis state-of-the-art full frequency digital calibration system with an international traceable certification that is always valid. 

Barrier terminal strips are provided for all external wiring. Conduit entry holes are available at the bottom of the Main Rack Frame. 

The following primary Type Tests have been passed and will remain current:

• Dry Heat Cyclic, IS:9000 P-III

• Damp Heat Cyclic, IS: 9000 P-V

• Bump IEC 68-2, Vibration IEC 68-2, Humidity IEC 68-2

• Mark, European Union – IEC61326 EMI/EMC and IEC61010 Safety 

• Storage temp: -18°C to 70°C

• Operating temp: 0°C to 65°C ambient

• Humidity: 95% non condensing