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8 – system activity – Liquid Controls Sponsler T675 - Cryogenic System Register User Manual

Page 27

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Sponsler, Inc.

Model T675 Flow Totalizer

Technical Information

Pg. 24


The following table details the available alarm parameters that are logged and their respective limits:

System alarm

Alarm cause

Low Power

Low input power below 8.75v

Low batt

Backup battery voltage below 8.5v

Coil short

Pickup coil resistance below 250 ohms

Coil open

Pickup coil resistance above 2500 ohms

RTD short

RTD probe resistance below 100 ohms

RTD open

RTD probe resistance above 2000 ohms

Tloop Short

Temperature loop current is above 35mA.

Tloop open

Temperature loop current is below 4.0mA

Ploop Short

Pressure loop current is above 35mA.

Ploop open

Pressure loop current is below 4.0mA

3.3.1.8 – System activity
Permits review of the following operating and maintenance items:

************ System activity ***********

Turbine hrs : 10.9
System hours : 25.6
Power cycles : 55
Backup Batt sec: 125

Last System PM : 25-Oct-06
Last Turbine PM: 18-Sept-05
Last pump PM: 13-Nov-04


Press any key to continue


Turbine hrs – Total hours of operation, accumulates only during flow
System hours – Total hours that the T675 has been “On”
Power cycles – Number of times the system has been turned “On”
Backup Batt sec – Total seconds that the battery has been the T675 operating power source
Last System PM – The date when the System maintenance just performed last had a <1> entry
Last Turbine PM – The date when the Turbine maintenance just performed last had a <1> entry
Last Pump PM – The date when the Pump maintenance just performed last had a <1> entry

3.3.1.0 – Go to page 2
Advances to 675 Settings, Page 2 menu.