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Instruction Bulletin
Appendix B Rev. 2.3
May 2005
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices B-1
World Class 3000
APPENDIX B, REV. 2.3
HPS 3000 HEATER POWER SUPPLY
DESCRIPTION
Read the “Safety instructions for the
wiring and installation of this appara-
tus” at the front of this Instruction
Bulletin. Failure to follow the safety
instructions could result in serious
injury or death.
B-1 DESCRIPTION
The Rosemount Analytical HPS 3000 Heater
Power Supply Field Module acts as an interface
between probe and electronics, and supplies
power to the probe heater. The unit allows the
use of probes with a number of different elec-
tronics packages.
The HPS is available in a NEMA 4X (IP56)
non-hazardous enclosure or an optional
Class 1, Division 1, Group B (IP56) explo-
sion-proof enclosure, Figure B-1.
The heater power supply, Figure B-2, consists
of a mother board, daughter board, and a
transformer for supplying correct voltage to the
probe heater. The mother and daughter boards
contain terminal strips for connecting probe,
electronics, and power supply.
The HPS is jumper configurable for 120, 220, or
240 Vac. For 100 Vac usage, the HPS is fac-
tory-supplied with a special transformer. The
100 Vac transformer can also be easily field in-
stalled. Refer to paragraph B-7, Transformer
Replacement for installation procedure; refer to
Table B-2, for transformer part numbers.
35730001
Figure B-1. HPS 3000 Heater Power Supply Field Module