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Instruction Manual
IM-106-910Xi, Original Issue
November 2010
Xi Advanced Electronics
http://www.raihome.com
Appendix A XPS Information
XPS Equipment Description . . . . . . . . . . . . . . . . . . . . . . . page A-1
Remote XPS for 44V Probes - 6A00358G01 . . . . . . . . . . . page A-1
Remote XPS for 115V Probes - 6A00358G03 . . . . . . . . . . page A-2
Integral XPS 6A00365G01 with Xi (for 44V Probes) . . . . . page A-3
Other XPS Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-10
Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . page A-10
XPS EQUIPMENT
DESCRIPTION
The XPS is primarily an interfacing electronics box installed between an
O
2
Probe and the Xi electronics. There are three variants of the XPS
electronics box, each with specific functions.
1. Remote XPS - 6A00358G01 for 44V Probes
2. Remote XPS - 6A00358G03 for 115V Probes
3. Integral XPS - 6A00365G01 for 44V Probes
Remote XPS for 44V
Probes - 6A00358G01
This version of the XPS is for use with Westinghouse/Rosemount Analytical
World Class probes that use a 44 volt heater, and when the O
2
Probe uses a
120/240V, 50/60Hz power source. The 6A00358G01 version contains
electronics to receive and process multiple raw signals from the probe.
Signal wires between the O
2
Probe and the G01 version XPS include the
following:
1. Thermocouple - 2 conductors (type K lead wire)
2. Sensing Cell - 2 conductors
3. Heater - 3 conductors
4. Shield
This version of the XPS provides for probe heater control and signal
conditioning. The signal conditioning electronics result in a linear 4-20 mA
%O
2
signal.
No operator interface is included. Thereby, the 4-20 mA signal typically goes
to a Xi Advanced electronics unit. Alternately, a handheld HART 375/475
Field Communicator can be used as the operator interface. However, the Xi
or the field communicator must be the dedicated communication device. The
Xi and the field communicator cannot be used at the same time.
For heater control the G01 version of the XPS includes a transformer. The
transformer converts 120/240V AC input power to the 44V AC heater voltage
used in the Westinghouse/Rosemount Analytical World Class probe.