9137200997 Rev D BE1-51 Introduction iii
REVISION HISTORY
The following information provides a historical summary of the changes made to the BE1-51 instruction
manual (9137200997). Revisions are listed in reverse chronological order.
Manual
Revision and Date
Change
D, 08/07
• Updated Output Contacts ratings in Section 1.
• Moved content of Section 6, Maintenance to Section 4.
• Updated front panel illustrations to show laser graphics.
• Moved content of Section 7, Manual Change Information to manual
introduction.
• Added manual part number and revision to all footers.
• Updated cover drawings.
• Moved Time Overcurrent Characteristic Curves from Section 1 to new
Appendix A.
• Updated power supply burden data in Section 1.
• Updated Target Indicator description in Section 3.
C, 01/98
• Changed paragraph styles to new manual design.
• Added Note 3 to Figure 1-1.
• Corrected inductive output specification from 0.1 to 0.3 A.
• Changed TOC specification.
• Added instantaneous response time with graph 1-1.
• Deleted specification reference to field selectable switch in Type S
power supply.
• Corrected weight in kilograms for all case styles.
• Replaced Figure 1-49 with correct curve.
• Corrected Figure 1-51.
• Added multiturn potentiometer description to controls in Table 2-1.
• Corrected Range 9 entries in Table 2-2.
• Changed “Element D” in Table 2-4 to “Element N”.
• Deleted Figure 3-1.
• Revised the power supply functional description to accommodate new
wide range power supplies.
• Corrected Figures 4-2, 4-3, and 4-4.
• Deleted Figure 4-5.
B, 09/93
• Added Figures 4-4 and 4-6 through 4-9.
• Restructured Section 5, Operational Test.
• Corrected minor typographical errors.
A, 02/93
• Added characteristic curves for integrating algorithm, Figures 1-39
through 1-70.
• Changed Figure 1-2.
• Corrected minor discrepancies.
—, 07/92
• Initial release
Courtesy of NationalSwitchgear.com
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