Bearing Monitoring; Connection Of Shock Pulse Transducers - SPM intellinova compact INS06 Ex Assembly, Installation And Operation Instructions

Bearing Monitoring

The System Unit INS06Ex has four channels for con-
tinuous monitoring of bearing condition. It meas-
ures shock pulses according to the SPM
or the LR/HR HD method. All measuring parameters
such as measuring time, alarm limits, alarm delay,
etc. are set up in the software Condmaster Ruby.
The bearing monitoring channels are connected to
shock pulse transducers of type SPM 44000 Ex via
coaxial cables. The transducers must be fitted with
isolation foot 15862.

Connection of Shock Pulse Transducers

Shock pulse transducers are connected to the TNC connectors on the
Ex interfaces. See the figures for proper connections.
The cabinet has two cable entries M25 x1.5 (1) with rubber insert for
up to 4 measuring cables each, cable diameter 4.5 to 6 mm (IP68).
Unused holes should be sealed with supplied plugs.
Intellinova Compact Ex INS06 Ex units can be delivered fully equipped
®
with four Ex interfaces for bearing monitoring. If Intellinova
Ex units are ordered with less than four channels the system can be
updated on site with additional Ex interfaces. Contact SPM Instrument
for update kit including modification instruction.
• Make sure that the System Unit is in power off position.
• Disconnect the power supply by switching off the terminal block
marked L1. Lift the jumper bar (1) as shown in the figure.
• Remove the blanking plug on the M25 cable gland (2) and guide
the cable end through the cable entry.
• Cut the cable and mount TNC connector 93022, see next page.
• Screw the TNC connector firmly into respectively Ex interface (3),
designation SPM 1 to SPM 4.
• Seal eventually unused inlet holes with supplied plugs and
tighten the gland sealing nuts with an open-ended 33 mm
spanner, see "Cable gland torque moment" on page 7.
• Switch on the terminal block marked L1 by pushing in the jumper
bar (1).
• Perform periodic pressure test according to "Service and Main-
tenance" to check that the enclosure is properly sealed, see
page 19.
Connection to IS-earth
Shock pulse transducers of type 44000 Ex fitted with isolation foot
15862 are isolated from machine ground. The cable shield is con-
nected via the Ex interface to the IS-earth rail inside the system unit.
Bearing Monitoring
HD method
®
® Compact
– 11 –
Explosive Area
Coaxial
cable
Machine
ground
SPM Transducer Ex interface
Inside nR Enclosure
J1 J2
to circuit
board
J3, J4
IS-earth
1
2
17301
J2
to circuit
board
J3, J4
rail for
IS-earth
3
J1
TNC input
connector