UniBasLogo

E002 cooling water cycle

DE  EN

LabWatch 157

is a Web LIOB-580 modul from Loytec



LabWatch-157
Room: U107 / Poggio-Lab / Tel. 061 207 35 81

Adress:     10.34.108.157
Name:       http://phys-alarm-17.physik.p.unibas.ch
LWEB-157: lweb802

Warning message:
Email to Mario Palma, Leon Camenzind, Andrea Mehlin, Boris Gross, Heinz Breitenstein, Laurent Marot,Peter Reimann, Roberto Maffiolini
Alarm:
Email to Mario Palma, Leon Camenzind, Andrea Mehlin, Boris Gross, Heinz Breitenstein, Laurent Marot,Peter Reimann, Roberto Maffiolini
SMS  to Mario Palma, Leon Camenzind,Andrea Mehlin, Boris Gross, HW+Stv's.

This module is monitoring the pressures of the cooling water cycle in the lab U107. 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-157 / Room U107
Subject :  RL pressure too low / U107 Apaco-Station  

RL= <ist_wert>
Water pressure in room U107 of the return line is lower than <soll_wert> bar
Water should be refilled soon.
{timestamp}
More information: https://labwatch.physik.unibas.ch/labwatch/157
Alarm Clear Subject : RL-pressure Cleared / U107 Apaco-Station 
Water pressure in room  U107 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-157 / Room U107
Subject :  FL-pressure too low / U107 Apaco-Station  

Water pressure in room U107 of the flow line drops below 4.5 bar
Possible cause: pump failure.
{timestamp}
https://labwatch.physik.unibas.ch/labwatch/157
Alarm Clear Subject : FL-pressure Cleared / U107 Apaco-Station  
Water pressure in room E002 of the flow line exceeded 4.5 bar and is in the normal range again.

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-157 / Room U107
Subject :  Alarm / U107 Apaco-Station 

Alarm / U107 Apaco-Station
{timestamp}
Water pressure of  return line in room U107 is lower than <soll_wert> bar
Below 0.6 bar, the cooling water unit will be shut down.
https://labwatch.physik.unibas.ch/labwatch/157

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-157 / Room U107
Subject :  Alarm / U107 Apaco-Station 

Alarm / U107 Apaco-Station
{timestamp}
The pressure difference in room U107 between flow line and return line is lower than <soll_wert>  bar.

https://labwatch.physik.unibas.ch/labwatch/157
Alarm Clear Subject : Alarm Cleared / U107 Apaco-Station 
Alarm / U107 Apaco-Station
{timestamp}
The pressure difference in room U107 between flow line and return line exceeds <soll_wert> bar
and is in the normal range again.


Sender: LabWatch-157 / Room U107
Subject :  Alarm / U107 Apaco-Station 

Alarm / U107 Apaco-Station
{timestamp}
The pressure difference in room U107 between flow line and return line exceeds  <soll_wert> bar

https://labwatch.physik.unibas.ch/labwatch/157
Alarm Clear Subject : Alarm Cleared / U107 Apaco-Station 
Alarm / U107 Apaco-Station
{timestamp}
The pressure difference in room U107 between flow line and return line is below <soll_wert> bar
and is in the normal range again.


Sender: LabWatch-157 / Room U107
Subject :  Alarm Quitt / U107 Apaco Station

The acknowledgment key was pressed on location!


   Threshold values for warning message:
  • return line pressure RL  < 0.85 bar
  • flow line pressure FL     < 3.00 bar
    Threshold values for alarm message:
  • return line pressure RL   < 0.7 bar
  • pressure difference       < 0.6 bar
  • pressure difference       > 4.5 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-157