S185
Status/alarm indicator. All versions have a red and yellow light to indicate alarm conditions and a green light to indicate normal and safe conditions. The acoustic indicator can be temporarily muted by means of the button installed on the front wall. To permanently disable the buzzer, the key switch can be used, which is supplied as an option. An /RJ185 option is available for direct connection to the S212.crossMatrix module.
S186
Operator watch-dog button. This device enables the system to monitor the active presence of an operator inside the cryobank by implementing the ‘dead man‘ function. Operators who are working inside the cryobank are asked to press the button every 5 minutes (programmable time) so that the system can identify their active presence and thus the absence of dangerous situations. The S186 is equipped with a grey button and green visual indicator with buzzer, which is activated during the last minute of the set time interval.
S187
Button to start and stop the filling process of the liquid nitrogen line operated within the cryobank. If pressed for 5 seconds, it activates the cooling and filling processes of the line; if pressed for 10 seconds, it stops them.
Equipped with a yellow light to indicate system status:
- Stand-by: the light is switched off
- Cooling/degassing phase: flashing light
- Filling phase: light on
S187-1
Button for activating a solenoid valve that allows manual withdrawal of liquid nitrogen by means of a special lance for filling small aluminium dewars.
S188
Emergency button to allow users inside the cryobank, biobank or laboratory to activate emergency measures and alarms. In accordance with international standards, the button is red on a yellow base with the indication ‘EMERGENCY STOP’.
In most implemented systems, when the emergency button is pressed:
- The S140 dialer sends alarm messages
- Forced ventilation is activated
- The supply of liquid nitrogen in cryobanks is suspended
- Audible and visual indicators are activated
