Configuration Information
3500/42 Operation and Maintenance
20
- The transition of a phase measurement that is decreasing occurs at 0
degrees (4 mA). At this point, the recorder signal switches from 4 mA to
a signal that corresponds to 360 degrees or 19.158 mA.
Delay
The time which a proportional value must remain at or above an over alarm level
or below an under alarm level before an alarm is declared as active.
Alert
First level alarm that occurs when the transducer signal level exceeds the
selected Alert/Alarm 1 setpoint. This setpoint can be set on the Setpoint
screen. The Alert time delay is always set at one second intervals (from 1 to
60) for all available proportional values.
Danger
Second level alarm that occurs when the transducer signal level exceeds the
selected Danger/Alarm 2 setpoint. This setpoint can be set on the Setpoint
screen.
100 ms option
The 100 ms (typical) option applies to the Danger time delay only and has
the following results:
If the 100 ms option is off (
):
- The Danger time delay can be set at one second intervals (from 1 to
60).
- The Danger time delay can be set for up to two available proportional
values.
If the 100 ms option is on (
):
- The Danger time delay is set to 100 ms.
- The Danger time delay can only be set for the primary proportional
value.
Zero Position (Gap)
Represents the zero position (in volts) when the gap scale is to read the
engineering units of displacement. To ensure maximum amount of zero
adjustment, the probe should be gapped as close as possible to the center gap
voltage specified in the OK Limit table. This field is not available for Voltage Gap
Scale.
Adjust Button
Adjust the Zero Position voltage. When this button is clicked, a utility starts that
helps you set the gap zero position voltage. Since this utility provides active
feedback from the 3500 rack, a connection with the rack is required. Refer to
Section 5.2 (Adjusting the Scale Factor and the Zero Position).
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