Coolant Information; Safety Information; Safety Features - Mira CR4000 Operational Instruction Manual

9.0 COOLANT INFORMATION

The CR4000 system operates on medical grade Nitrous Oxide (N
DO NOT expose the gas cylinders to direct heat. Compressed gas must be handled with care.
Improper storage temperatures or overfilling cylinders can cause equipment malfunction. Store cylinders
at room temperature for 24 hours prior to use.
Cylinder pressure will increase when the cylinder is heated and decrease when it is cooled. The nominal
cylinder pressure for N
Non-siphon cylinders must be used and should be stored in the upright position.
Gas cylinders used with this system must be non-siphon.
WARNING: Liquid N

10.0 SAFETY INFORMATION

10.1

Safety Features

Because the CR4000 is completely non-electric, there are no electrical shock hazards.
The micro-fiber filter / Sintered metal filter assemblies prevent foreign particles or oils
from entering the CR4000 console and probes. Replaceable Micro-fiber filter / Sintered
Metal elements are available from MIRA.
The front panel pressure gauge of the CR4000 console displays gas pressure from the gas
supply cylinder reducing the possibility of running out of gas during use. The MIRA
Dual Cylinder Cryo Equipment Carrier CR4400 (see section 3.7. and Fig. 2) can hold a
spare cylinder. A fresh supply can be made available by using the carriers specially
designed switch-over valve.
Adequate pressure regulation (except when using the Mini-Vitreous Probe CR4045, See
section7) is built into the CR4000 Console and calibrated by MIRA to decrease operator
intervention and to prevent errors in setting cylinder pressure
The MIRA CR4000 system has a rapid freeze and defrost system available. Gas
expansion occurs only at the tips of the MIRA CR4000 probes allowing for greater
control of application time and target tissue area.
Mira, Inc.*414 Quaker Highway * Uxbridge, MA 01569 * Tel: 508-278-7877 * 800 847-6472 * Fax: 508-278-4555
O is 730psi and CO
2
O or CO can damage your system
2 2
First through innovation
is 850psi.
2
O) or Carbon Dioxide (CO
2
).
2
0086
12
p.