8 – system activity – Liquid Controls Sponsler T675 - Cryogenic System Register User Manual
Page 27

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.