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E002 cooling water cycle

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LabWatch 156

is a Web LIOB-580 modul from Loytec



LabWatch-156
Room: E002 / Cryo-Lab / Tel. 061 207 35 83

Adress:     10.34.108.156
Name:       http://phys-alarm-16.physik.p.unibas.ch
LWEB-156: lweb802

Warning message:
Email to Taras Patlatiuk, Heinz Breitenstein, Laurent Marot,Peter Reimann, Roberto Maffiolini
Alarm:
Email to Taras Patlatiuk, Heinz Breitenstein, Laurent Marot,Peter Reimann, Roberto Maffiolini
SMS  to Taras Patlatiuk, HW+Stv's.

This module is monitoring the pressures of the cooling water cycle in the lab E002. It measures the pressure in the flow line (german: “Vorlauf”, VL) and the return line (german: “Rücklauf”, RL) and calculates the difference.

If the return line pressure falls below 0.6 bar, the Apaco station will shut down. To avoid this situation, a warning message is sent to techalarm-phys@unibas.ch by email if the RL is lower than 1.1 bar. From this email account, the email is forwarded to the responsible staff.
Sender: LabWatch-156 / Room E002
Subject :  RL pressure too low / E002 Apaco-Station  

RL= <ist_wert>
Water pressure in room E002 of the return line is lower than <soll_wert> bar
Water should be refilled soon.
{timestamp}
More information: https://labwatch.physik.unibas.ch/labwatch/156
Alarm Clear Subject : RL-pressure Cleared / E002 Apaco-Station 
Water pressure in room  E002 of the return line exceeded  bar
and is in the normal range again.
{timestamp}

If the flow line pressure (VL) drops below 4.5 bar, the pump could have failed. A warning message is sent to techalarm-phys@unibas.ch by email and forwarded to the responsible staff.
Sender: LabWatch-156 / Room E002
Subject :  FL-pressure too low / E002 Apaco-Station  

Water pressure in room E002 of the flow line drops below 4.5 bar
Possible cause: pump failure.
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/156
Alarm Clear Subject : FL-pressure Cleared / E002 Apaco-Station  
Water pressure in room E002 of the flow line exceeded 4.5 bar
and is in the normal range again.
{timestamp}

If the RL pressure keeps dropping below 0.8 bar, both an acoustic and an optical alarm will be triggered. The alarm can be silenced for an interval of 60 minutes. The same action will take effect if the pressure difference goes below or above its limits. An alarm message is sent to techalarm-phys@unibas.ch by email and forwarded to the responsible staff.
Sender: LabWatch-156 / Room E002
Subject :  Alarm / E002 Apaco-Station 

Alarm / E002 Apaco-Station
{timestamp}
Water pressure of  return line in room E002 is lower than <soll_wert> bar
Below 0.6 bar, the cooling water unit will be shut down.

https://labwatch.physik.unibas.ch/labwatch/156

If the pressure difference is below or above its limits, a warning message is sent to techalarm-phys@unibas.ch by email and forwarded to the responsible staff
Sender: LabWatch-156 / Room E002
Subject :  Alarm / E002 Apaco-Station 

Alarm / E002 Apaco-Station
{timestamp}
The pressure difference in room E002 between flow line and return line is lower than <soll_wert>  bar.

https://labwatch.physik.unibas.ch/labwatch/156
Alarm Clear Subject : Alarm Cleared / E002 Apaco-Station 
Alarm Cleared / E002 Apaco-Station
{timestamp}
The pressure difference in room E002 between flow line and return line exceeds <soll_wert> bar
and is in the normal range again.


Sender: LabWatch-156 / Room E002
Subject :  Alarm / E002 Apaco-Station 

Alarm / E002 Apaco-Station
{timestamp}
The pressure difference in room E002 between flow line and return line exceeds  <soll_wert> bar

https://labwatch.physik.unibas.ch/labwatch/156
Alarm Clear Subject : Alarm Cleared / E002 Apaco-Station 
Alarm Cleared / E002 Apaco-Station
{timestamp}
The pressure difference in room E002 between flow line and return line is below <soll_wert> bar
and is in the normal range again.


Sender: LabWatch-156 / Room E002
Subject :  Alarm Quitt / E002 Apaco Station

The acknowledgment key was pressed on location!


   Threshold values for warning message:
  • return line pressure RL  < 1.05 bar
  • flow line pressure FL     < 1.85 bar
    Threshold values for alarm message:
  • return line pressure RL   < 0.9 bar
  • pressure difference       < 0.6 bar
  • pressure difference       > 2.0 bar
  • Trigger delay time         = 10 sec
  • ReAlarm time                = 60 min
Picture of LWEB browser visualization
Here you can read the actual pressure values and set new threshold values using  LWEB-156