7018130 Rev. 3
Liquid Nitrogen Low Level Alarm
8130 (BA-290)
Indicates a hazardous situation that, if not avoided, could result in death or
serious injury.
Indicates a hazardous situation that, if not avoided, could result in minor
or moderate injury (e.g. a sample loss).
Potential electrical hazards. Only qualified persons should perform
procedures associated with this symbol.
WEEE Compliance: Thermo Fisher Scientific has contracted with
companies for recycling/disposal in each EU Member State. For further
information, send an email to weee.recycle@thermofisher.com.
Declaration of Conformity is available from the factory on request.
Caution These instructions are for experienced operators who are fully
familiar with the principles of operation and safe practice for Cryogenic-
Liquid equipment. Before using or maintaining the unit, read the
instructions carefully. Contact Technical Services for service.
▲
The Model 8130 (BA-290) is a liquid nitrogen low level alarm. The alarm
state is activated when the liquid nitrogen level drops below the sensor.
The alarm has audible and visual (LED) indicators. The function of the 3-
position switch is:
• OFF - the alarm is inoperative.
• ON - the alarm is in monitor mode.
• TEST - the alarm circuitry is tested to ensure that the alarm circuitry is
operating properly. The alarm will sound and the LED will light.
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