Set Point Hysteresis; Set Point Relays - Varian sentorr Instruction Manual

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SET POINT HYSTERESIS

A set point will energize when the pressure of its pre-assigned gauge drops below the set point's pro-
grammed threshold pressure. The set point will de-energize when the gauge pressure rises above the
set point hysteresis pressure. The set point hysteresis automatically defaults to 10 percent above the
threshold value. This value can be changed by pressing the "Stpt Hyst" key. The red Hyst legend will
light to indicate that the set point pressure being displayed is the hysteresis level.
The "Stpt Hyst" key will not function if the set point has not been programmed.
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SET POINT RELAYS

The relay contacts are gold-flashed, making them suitable for logic-level
switching. However, the application of AC or DC voltages greater than 20
V or 20 VA will cause erosion of the gold, even in just one switching cycle.
Refer to Figure 3-2 for set point option.
Find Part # Description
1 L9132002 Set Point Assy
2 641309621 Bracket
3 614412132 Screw
4 L6419301 Cable
5 5140687800 Connector Mate
Operation
CAUTION
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This Sheet
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2
4
1
4
Figure 3-2. Set Point Option
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