Reference Manual
May 2019
00809-0100-3003, Rev AA
28
4.3.1
Relay options
The GDU-Incus has two relays configured as follows for the standard factory default:
Relay
Type
Factory Default Setting
1
Fault
Energized in normal operating condition, de-energized in fault condition, non-
latching.
2
Alarm Energized in normal operating condition, de-energized in alarm condition, non-
latching.
Relay Data
Maximum switching current
1.4 A
Maximum switching voltage
30 VDC
Relay configuration can be changed to suit installation requirements using the user changeable
functions, options include Normally Open / Normally Closed condition and latching / non-latching.
Refer to GDU-INCUS RS485 Specification document (MAN-GDU-INCUS-RS485) for more information on
setup of the relays.
4.4
Display
The GDU-Incus incorporates a 5 digit x 7 segment, 0.31-in. high x 0.16-in. wide (8 mm high x 4 mm
wide) character LED display with red numerals as standard.
During operation the real-time dB level is continuously shown while below the programmed alarm level
and flashing when above the programmed alarm level.
Figure 4-5 Example of real-time dB level display ‘53dB’
If a maintenance/minor fault occurs the display will continue to display the real-time dB value, but will
also show a flashing red dot on digit 1 to indicate that a fault has occurred.
If a major fault occurs, the display will shut down.
Display delay (pulse filter) can be set to delay the results shown on the LED to eliminate spiked spurious
noise events and display a more consistent value.
Display settings can be changed using the user changeable functions; Refer to GDU-INCUS RS485
Specification document (MAN-GDU-INCUS-RS485).
Summary of Contents for GDU-Incus
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