Variō Pro Alarms & Alarm Descriptions - CHART BioMedical MVE Vario Pro Guide De Référence Rapide

MVE Biological Systems
TM
7.0 Variō Pro Alarms & Alarm Descriptions
The MVE Variō Pro controller is equipped with a total of 15 system status alarms, all of which may be
customized by the user to suit the needs of the application. The various alarm indication screens and the
corresponding descriptions are shown below:
Alarm Display
ALARM
High Temp A
Started at:
01/01/2011 12:00 PM
ALARM
High Temp B
Started at:
01/01/2011 12:00 PM
ALARM
Low Temp A
Started at:
01/01/2011 12:00 PM
ALARM
Low Temp B
Started at:
01/01/2011 12:00 PM
ALARM
Temp A Sensor Fail
Started at:
01/01/2011 12:00 PM
ALARM
Temp B Sensor Fail
Started at:
01/01/2011 12:00 PM
ALARM
Inlet Sensor Fail
Started at:
01/01/2011 12:00 PM
ALARM
Cooling Sensor Fail
Started at:
01/01/2011 12:00 PM
ALARM
Supply Time X min
Started at:
01/01/2011 12:00 PM
ALARM
Valve Stuck Open
Started at:
01/01/2011 12:00 PM
ALARM
Valve Stuck Closed
Started at:
01/01/2011 12:00 PM
PN 14910831 Rev A
The Temp A sensor is reading above the user defined high temperature alarm setting.
The Temp B sensor is reading above the user defined high temperature alarm setting.
The Temp A sensor is reading below the user defined low temperature alarm setting.
The Temp B sensor is reading below the user defined low temperature alarm setting.
The Variō Pro has lost communication with the Temp A sensor. The sensor has either been
disconnected from the controller or has been damaged.
The Variō Pro has lost communication with the Temp B sensor. The sensor has either been
disconnected from the controller or has been damaged
The Variō Pro has lost communication with the inlet sensor. The sensor has either been
disconnected from the controller or has been damaged.
The Variō Pro has lost communication with the cooling sensor. The sensor has either been
disconnected from the controller or has been damaged.
The Supply Time alarm is triggered when the temperature of the incoming nitrogen fails to
reach the Inlet Temp Setpoint within the time specified by the Supply Alarm Delay. Once
activated, the Variō Pro will terminate the Hot Gas Bypass cycle and begin supplying the
freezer with N .
2
The Valve Stuck Open alarm is triggered when the Cooling Cycle has terminated and the
Inlet Temp Sensor fails to warm above the Inlet Temp Setpoint within the time specified by
the Stuck Open Delay time setting.
The Valve Stuck Closed alarm is triggered when the Variō Pro has begun feeding N
freezer, and the Inlet Temp Sensor fails to cool to the Inlet Temp Setpoint in the time
specified by the Stuck Closed Delay time setting. Note that although this alarm is similar to
the Supply Time Alarm, it will remain active regardless of the ENABLED/DISABLED status of
the Inlet Temp Sensor.
MVE Variō™ Pro Quick Start Guide
Description
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