 Features
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- Automatic protection against
accidental detector warmup
- Delayed shutdown saves
experiments
- Audible, visual and contact closure outputs
Description
The Model 1786A Detector LN2 Monitor protects LN2-cooled
detector systems against accidental warmup by monitoring liquid
level in the Dewar and providing audible and visual warning
of low liquid levels. It provides a signal for remote shutdown of
Detector Bias Supply which has an Inhibit input. This singlewidth
NIM module is suitable for most dipstick and integral type
cryostats, but is not suitable for portable cryostats.
When your LN2 sensor detects a problem, the LN2 Monitor has
provisions for turning off high voltage when an alarm condition
occurs to protect detectors and electronics from damage. Shutdown
does not occur until at least 20 minutes after the condition
is sensed, and well before total depletion of the liquid nitrogen,
so ongoing experiments can continue without interruption.
The Model 1786A must be manually reset following a power
interruption. This will prevent HV Bias from coming on automatically
(and abruptly) when the power is restored. |
Note to our International Customers: If you
would like a quote on this product, please contact
your Local Sales Office for assistance.
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| 1786A |
Detector LN2 Monitor |
