6-8
IB02601006E
www.eaton.com
Chapter 6:
Using the IQ 250/260 IQ 250/260 Meter
Configuring PT Setting
The PT Setting has three parts:
Pt-n
(numerator),
Pt-d
(denominator), and
Pt-S
(scaling).
1. Press the
Enter
button when Pt is in the A window.
The
PT-n
screen appears. You can either:
• Change the value for the PT numerator.
• Access one of the other PT screens by pressing the
Enter
button: press
Enter
once to access the
Pt-d
screen, twice to access the
Pt-S
screen.
a.
To change the value for the PT numerator or denominator
From the Pt-n or Pt-d screen:
•
Use the
Down
button to select the number value for a digit.
• Use the
Right
button to move to the next digit.
b
. To change the value for the PT scaling
From the Pt-S screen:
Use the
Right
button or the
Down
button to choose the scaling you want. The Pt-S setting can be
1
,
10
,
100, or 1000
.
NOTE: If you are prompted to enter a password, refer to the instructions earlier in this chapter.
2. When the new setting is entered, press the
Menu
button twice.
3. The
STOR ALL YES
screen appears. Press Enter to save the new PT setting.
Example Settings:
277/277 Volts:
Pt-n value is 277, Pt-d value is 277, Pt-S value is 1.
14,400/120 Volts:
Pt-n value is 1440, Pt-d value is 120, Pt-S value is 10.
138,000/69 Volts:
Pt-n value is 1380, Pt-d value is 69, Pt-S value is 100.
345,000/115 Volts:
Pt-n value is 3450, Pt-d value is 115, Pt-S value is 100.
345,000/69 Volts:
Pt-n value is 345, Pt-d value is 69, Pt-S value is 1000.
NOTE:
Pt-n and Pt-S are dictated by primary voltage; Pt-d is secondary voltage.
Use
Summary of Contents for IQ 250
Page 2: ......
Page 22: ...3 6 IB02601006E www eaton com Chapter 3 Mechanical Installation IQ 250 260 Meter...
Page 38: ...4 16 IB2601006E www eaton com Chapter 4 Electrical Installation IQ 250 260 Meter...
Page 104: ...A 6 IB02601006E www eaton com Appendix A IQ 250 260 Navigation Maps IQ 250 260 Meter...
Page 134: ...A IQ 250 260 Meter Appendix B Modbus Mapping www eaton com IB02601006E MM 28...
