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O104 cooling water cycle 
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LabWatch 147

is a Web LIOB-580 modul from Loytec



LabWatch-147
Room: O104
/ Technologie / Tel. 061 207 3685/3684

Adress:     10.34.108.147
Name:       http://phys-alarm-07.physik.p.unibas.ch
LWEB-147: lweb802

Warning message:
Email to Roland Steiner, Laurent Marot, Silvester JakobOn-call duty (Pikettdienst)
Alarm:
Email to Roland Steiner, Laurent Marot, Silvester JakobOn-call duty (Pikettdienst)
SMS  to Laurent Marot, HW+Stv, On-call duty (Pikettdienst)

This module is monitoring the pressures of the cooling water cycle in the lab O104. 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.
Absender: LabWatch-147 / Raum E011
Subject :  RL-Druck zu tief / E011 Apaco-Station 

RL= <ist_wert>
Water pressure in room E011 of the return line is lower than <soll_wert> bar
Water should be refilled soon.
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/147
Alarm Clear Subject : RL-Druck Cleared / E011 Apaco-Station 
Water pressure in room  E011 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.
Absender: LabWatch-147 / Raum E011
Subject :  VL-Druck zu tief / E011 Apaco-Station 

Water pressure in room E011 of the flow line (VL) drops below 4.5 bar
Possible cause: pump failure.
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/147
Alarm Clear Subject : VL-Druck Cleared / E011 Apaco-Station 
Water pressure in room E011 of the flow line (VL) exceeded 4.5 bar
and is in the normal range again.
{timestamp}

If the RL pressure keeps dropping below 0.9 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.
Absender: LabWatch-147 / Raum E011
Subject :  Alarm / E011 Apaco-Station 

Water pressure of  return line in room E011 is lower than <soll_wert> bar
Below 0.6 bar, the cooling water unit will be shut down.
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/147

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
Absender: LabWatch-147 / Raum E011
Subject :  Alarm / E011 Apaco-Station 

The pressure difference in room E011 between flow line and return line is lower than <soll_wert>  bar.
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/147
Alarm Clear Subject : Alarm Cleared / E011 Apaco-Station 
The pressure difference in room E011 between flow line and return line exceeds <soll_wert> bar
and is in the normal range again.
{timestamp}


Absender: LabWatch-147 / Raum E011
Subject :  Alarm / E011 Apaco-Station 

The pressure difference in room E011 between flow line and return line exceeds  <soll_wert> bar
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/147
Alarm Clear Subject : Alarm Cleared / E011 Apaco-Station 
The pressure difference in room E01 between flow line and return line is below <soll_wert> bar
and is in the normal range again.
{timestamp}


Absender: LabWatch-147 / Raum E011
Subject :  Alarm Quitt / E011 Apaco Station

The acknowledgment key was pressed on location!

   Normalrange
  • RL-pressure 1.44 bar
  • VL-pressure 4.77 bar


   Threshold values for warning message:
  • return line pressure RL  < 1.1 bar
  • flow line pressure VL    < 4.5 bar
    Threshold values for alarm message:
  • return line pressure RL   < 0.9 bar
  • pressure difference       < 0.7 bar
  • pressure difference       > 4.5 bar
  • Trigger delay time         = 10 sec
  • ReAlarm time                = 60 min

LWEB Browser Visualisierung
Here you can read the actual pressure values and set new threshold values using  LWEB-155

LWEB803 Visualisierungs-Software