O207 cooling water cycle
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LabWatch 168
is a Web LIOB-580 modul from Loytec
Room: O207 / REM Mikroscope Gemini
Adress: 10.34.108.168
Name: http://phys-alarm-28.physik.p.unibas.ch
LWEB-168:
Warning message:
| Email to | Lukas Gubser, David Indolese, Miguel Carballido, Matthijs Hermans, On-call duty (Pikettdienst) |
| Email to | Lukas Gubser, David Indolese, Miguel Carballido, Matthijs Hermans, On-call duty (Pikettdienst) |
| SMS to | Lukas Gubser, David Indolese, Miguel Carballido, HW+Stv, On-call duty (Pikettdienst) |
This module is monitoring the pressures of the cooling water cycle in the lab O207. 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-168 / Room O207 |
| Subject : | RL pressure too low / O207 Apaco-Station |
| RL= <ist_wert> Water pressure in room O207 of the return line is lower than <soll_wert> bar Water should be refilled soon. {timestamp} More information: https://labwatch.physik.unibas.ch/labwatch/168 |
|
| Alarm Clear Subject : | RL-pressure Cleared / O207 Apaco-Station |
| Water pressure in room O207 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-168/ Room O207 |
| Subject : | FL-pressure too low / O207 Apaco-Station |
|
Water pressure in room O207 of the flow line drops below 4.5 bar
Possible cause: pump failure. https://labwatch.physik.unibas.ch/labwatch/168 |
|
| Alarm Clear Subject : | FL-pressure Cleared / O207 Apaco-Station |
|
Water pressure in room O207 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-168 / Room O207 |
| Subject : | Alarm / O207 Apaco-Station |
| Alarm / O207 Apaco-Station {timestamp} Water pressure of return line in room O207 is lower than <soll_wert> bar Below 0.6 bar, the cooling water unit will be shut down. https://labwatch.physik.unibas.ch/labwatch/168
|
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-168 / Room O207 |
| Subject : | Alarm / O207 Apaco-Station |
| Alarm / O207 Apaco-Station {timestamp} The pressure difference in room O207 between flow line and return line is lower than <soll_wert> bar. https://labwatch.physik.unibas.ch/labwatch/168 |
|
| Alarm Clear Subject : | Alarm Cleared / O207 Apaco-Station |
| Alarm / O207 Apaco-Station {timestamp} The pressure difference in room O207 between flow line and return line exceeds <soll_wert> bar and is in the normal range again. |
| Sender: | LabWatch-168 / Room O207 |
| Subject : | Alarm / O207 Apaco-Station |
| Alarm / O207 Apaco-Station {timestamp} The pressure difference in room O207 between flow line and return line exceeds <soll_wert> bar https://labwatch.physik.unibas.ch/labwatch/168 |
|
| Alarm Clear Subject : | Alarm Cleared / O207 Apaco-Station |
| Alarm / O207 Apaco-Station {timestamp} The pressure difference in room O207 between flow line and return line is below <soll_wert> bar and is in the normal range again. |
Threshold values for warning message:
- return line pressure RL < 1.1 bar
- flow line pressure FL < 3.5 bar
- return line pressure RL < 0.7 bar
- pressure difference < 1.5 bar
- pressure difference > 4.0 bar
- Trigger delay time = 10 sec
- ReAlarm time = 60 min
Picture of LWEB browser visualization
