1. Provides operator information in the Control Room to protect the vessel from undue thermal and mechanical stresses.
2. Information used to assure the Core remains covered and the separators are not flooded.
3. Redundant inputs to the Reactor Protection System to shutdown the Reactor when fuel damage limits are approached.
4. Information at Panel C-292 (ASDS) in event of Control Room evacuation

Provides indication of vessel pressure and inputs to RPS, Feedwater Level Control System, ECCS, and ATWS.

1. Inputs to feedwater control system
2. Inputs to RPS
3. Inputs to initiate ECCS
4. Control room indication and alarms.

Tech Staff will calculate level based on instrument output as there is no temperature or density compensation, and core flow must be zero for this instrument to be used.

1. Reactor Vessel shell adjacent to shell flange;
2. Reactor vessel bottom drain
3. Recirc loops A and B
4. Rx Vessel Bottom head.

"Section 3.3: Instrumentation

Tech Spec 3.3.1.1: RPS Instrumentation

 LCO The RPS Instrumentation for each function in Table 3.3.1.1-1 shall be operable.

APPLICABILITY: According to Table 3.3.1.1-1.

Condition C.: One or more functions with RPS trip capability not maintained.

Required Action: C.1 Restore RPS trip capability. Completion Time: 1 hour.

Condition D: Required Action and associated Completion time of condition A, B, or C not met. Required Action D.1: Enter the Condition referenced in Table 3.3.1.1-1 for the channel. Completion time: IMMEDIATELY.

Condition H: As required by Required Action D.1 and referenced in Table 3.3.1.1-1.

Action H.1: Initiate action to fully insert all insertable control rods in core cells containing one or more fuel assemblies. "

Section 3.3: Instrumentation

 Tech Spec 3.3.3.1: Post Accident Monitoring (PAM) Instrumentation

LCO: The PAM Instrumentation for each Function in Table 3.3.3.1-1 shall be OPERABLE.

Applicability: MODES 1 and 2.

Condition B: Required action and associated completion time of condition A not met.

Action B.1: Initiate action in accordance with Spec 5.6.4.

Completion time: IMMEDIATELY.

Condition D: Required Action and associated Completion time of Condition C not met.

Action D.1: Enter the condition referenced in Table 3.3.3.1-1 for the channel. Completion Time: IMMEDIATELY. Condition F: As required by Required Action D.1 and referenced in Table 3.3.3.1-1. Required Action: Initiate action in accordance with Specification 5.6.4. Completion Time: IMMEDIATELY

"Section 3.3 Instrumentation

 Tech Spec 3.3.5.1: Emergency Core Cooling System (ECCS)

LCO: The ECCS instrumentation for each Function in Table 3.3.5.1-1 shall be operable.

Applicability: According to table 3.3.5.1-1. NOTE: There are 7 Conditions which have 1 hour or less actions. Due to the web of notes and multiple actions required for each condition, this is not conducive to an index card of its own."

Section 3.3 Instrumentation

 Tech Spec 3.3.6.1: Primary containment isolation Instrumentation

LCO: The primary containment isolation instrumentation for each Function in Table 3.3.6.1-1 shall be OPERABLE.

Applicability: According to Table 3.3.6.1-1.

Condition B: One or more Functions with primary containment isolation capability not maintained. Action B.1: Restore primary containment isolation capability.

Completion time: 1 hour

Condition C: Require Action and associated Completion Time of Condition A or B not met. Action C.1: Enter the Condition referenced in Table 3.3.6.1-1 for the channel.

Completion Time: Immediately.

Condition F. As required by Required Action C.1 and referenced in Table 3.3.6.1-1.

Action: Isolate the affected penetration flow pat(s).

Competion time: 1 hour.

Condition H: As required by Required Action C.1 and referenced in Table 3.3.6.1-1.

Action H.1 Declare associated SLC subsystem inoperable in 1 hour. OR Action H.2: Isolate the Reactor Water Cleanup System in hour.

Condition I: As req'd by Req'd Action C.1 and referenced in Table 3.3.6.1-1.

Required Action I.1: Initiate action to restore channel to OPERABLE status IMMEDIATELY. OR Required Action I.2 Initiate action to isolate teh RHR Shutdown Cooling System IMMEDIATELY.

All pressure transmitters tap off a reference leg. Therefore, a reference leg break affects pressure transmitters, while a variable leg break affects level only.