January, 2010
New TEC 3000 Manual
The newest TEC 3000 Technical Manual*, revision C, is available online at www.chart-
biomed.com. This revision includes several new features:
• Freezer Dimensional Specifications
• Updated Menu Maps
• Preventative Maintenance Procedures
• Troubleshooting Quick Reference
*PN: 13289499
Checking Freezer Electrical Components
If it is suspected that one of the electrical components is not operating properly, an
evaluation may be in order. Below is a list of specifications for select items normal re-
sistance values.
1. Fill Valves (Dual 24VDC): 30 – 35 ohms
2. Fill Valve (Singular 24VDC): 60 – 70 ohms
3. Bypass Valve: 60 – 70 ohms
4. Bypass Sensor:
a.
Room Temp: 1000 – 1100 ohms
b.
Cryogenic Temp: 200 – 300 ohms
5. Humphrey 3 way: 140 – 145 ohms
6. Temperature Probes
a.
Room Temp: 1000 – 1100 ohms
b.
Cryogenic Temp: 200 – 300 ohms
CryoSystem Lids
All CryoSystems will now come standard with a plastic lid. This will replace the painted,
spun metal lid previously used.
