Fireye NEXUS NX6100 series, Manual

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Secure all cables carried in conduit at both ends using a suitable anchorage method in the cabinet.
Connect all signal cable ‘braid’ screens to earth using the screen termination clamps provided on the
controller. Connect all cable screens to earth at the
controller only , unless stated otherwise in this
section.
The equipment described in this manual has been tested for compliance to the CE directives listed in
the section headed ‘Approvals’. However, once connected to a burner and other associated control
devices, it is the responsibility of the installer to ensure the complete installation meets the
requirements of the CE or other local codes/directives relevant to the particular installation.
1.3 NXO2TRIM terminal designation and wiring requirements
1.3.1 Wire specification and interconnection.
The electrical connection between the Nexus series controller must be to the CANbus 4-core screen
cable specification in the main product manual, NEX-6101 or PPC-6001. Connect the CAN cable
‘braid’ screen at the controller, using the screen termination clamps provided at the controller.
Terminate the ‘braid’ screen for all other connections in the NXO2TRIM enclosure at ring terminal
point.
Incorrect connection or application of excess voltage will damage or destroy the devices
being connected.
The electrical cable specification for connections between the NXO2TRIM and NX6083-X probe
must be as follows:
Cable function Specification
Cell heater and O
2
measurement.
Max Voltage in use 14V d.c.

6-core cable with each core 16/0.2mm (20 AWG) and with
overall braded screen. Cable covered in PVC sheath.

Resistance per core 40 milliohms/metre.

Maximum working voltage 440V rms.

Maximum length between the probe and controller is 10m
(33ft).
Flue gas temperature
measurement. Max Voltage in use 5V d.c.

Type ‘K’ compensating cable.

2-core PVC insulated cable with 7/0.2mm (24awg) conductors,
covered in overall PVC sheath.