Before Value Comparison And Relative Value Comparison; (In Expansion Double Hold Only); Screens Appearing When Before Value Comparison; Relative Value Comparison Are Selected - Unipulse F377A Operation Manual

2 EXP. COMPARISON FUNCTIONS
2-4.

Before Value Comparison and Relative Value Comparison

(in expansion Double Hold only)

■Screens appearing when before value comparison &
Chapter

relative value comparison are selected

2
Before-value-comparison & Relative-Value-Comparison-specific measurement screens appear.
Also, the Comparison Setting menu is dedicated.

■Difference Value- and relative-HI/LO limit comparisons

HI/LO Limit, Difference value-HI/LO, and Relative-HI/LO Limit comparisons of Double Hold are
made, and respective judgment results are output externally.
When the Comparison Standard is A:
- Hold value A HI Limit (HI-A) & Difference value-HI Limit (DF-HI)
- Hold value A LO Limit (LO-A) & Difference value-LO Limit (DF-LO)
- Relative-HI Limit (RL-HI)
- Relative-LO Limit (RL-LO)
- OK
* The Hysteresis setting is not reflected in the Difference-HI/LO Limit and Relative-HI/LO Limit
comparison operation.
* If the Comparison Timing condition is not met, the comparison result of the value targeted for the
Comparison Timing turns OFF.
* OK is displayed each on the LCD screen as hold value A and the difference value are OK, and the
relative value is OK
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In Double Hold, Before Value Comparison and Relative Value Comparison can be made
simultaneously.
Dif.
Rel.
The HI/LO Limit comparison result of the relative value, and the HI/LO Limit comparison result
and Difference value-HI/LO Limit comparison result of hold value A are output together.
ON condition: Hold value A > HI-A Limit, or Difference value > Difference value-HI Limit
OFF condition: Hold value A ≦HI-A Limit, and Difference value ≦ Difference value-HI Limit
ON condition: Hold value A < LO-A Limit, or Difference value < Difference value-LO Limit
OFF condition: Hold value A ≧ LO-A Limit, and Difference value ≧ Difference value-LO Limit
ON condition: Relative Value (Hold value B - Hold value A) > Relative-HI Limit
OFF condition: Relative Value (Hold value B - Hold value A) ≦ Relative-HI Limit
ON condition: Relative Value (Hold value B - Hold value A) < Relative-LO Limit
OFF condition: Relative Value (Hold value B - Hold value A) ≧ Relative-LO Limit
ON condition: All of HI-A, LO-A, DF-HI, DF-LO, RL-HI, and RL-LO are OFF.
OFF condition: Any of HI-A, LO-A, DF-HI, DF-LO, RL-HI, and RL-LO is ON.
Hold A
Hold B
Hold A
Hold B