The Cryogen-free Measurement System. CryoAdvance, Inc.

Liquid nitrogen storage system CryoStor102 is designed for cryopreservation of pre-cooled biologic samples of various types. The system guaranties a long-term storage of samples at liquid nitrogen temperature -196 °C. The system set consists of a number of liquid nitrogen tanks with 35 - 500 L capacity and a level controller unit. The controller block enables the monitoring of the liquid nitrogen level and samples temperature, as well as the connection of automatic filling system.

The pre-cooled samples are placed in reservoirs in racks. Each reservoir is equipped by a LN level measuring head. The LN control system gives alarm signal when the LN level is less then 30% of maximal value. After the alarm signal the automatic filling system starts. The controller unit can be connected to the computer using the RS-232 interface. The controller unit enables operation up to 8 liquid nitrogen storage reservoirs.

Type of cryogenic liquid

Liquid nitrogen

Storage temperature, °C

-196

Temperature gradients in lower part of reservoirs, °C

1 ... 2

Accuracy of temperature indication, °C

0.2

Temperature gradient between the upper and lower part of reservoirs, °C

10

Reservoir volume, L

35

Maximal vials number in reservoir

250

Maximal number of reservoirs used with one controller unit

8

Computer interface

RS-232

Level alarm

at 30 % of maximal value

Alarm type

Light/sound

Power supply, V

~ 220

Back-up system voltage, V

12

Controller unit weight, kg

2

Controller unit dimensions, mm

300 х 240 х 50

Reservoir weight, kg

21

Reservoir dimensions, mm

Ø516 х 752