Home > Selection Guide
Model 22C |
Model 24C |
Model 44C |
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| Two input, four control loops. Operation to 200mK. | Four input, dual control loops. Operation to 200mK. | Four input, dual control loops. Optimized for ultra-low temperature. | |
Sensor Inputs |
2 |
4 |
4 |
|---|---|---|---|
| Temperature Range | 200mK to 1020K | 200mK to 1500K | <20mK to 1020K |
| Excitation Current | 2.5mA to 10nA | 15mA to 50nA | 300pA to 10mA |
| Constant-Voltage Excitation Levels | 100mV, 10mV, 1.0mV AC |
100mV, 10mV, 1.0mV AC |
10µV to 100mV AC |
| Supported Sensors | |||
| Silicon Diode | 1.4 to 475K | 1.4 to 475K | 1.4 to 475K |
| Ruthenium Oxide | 200mK to 273K | 200mK to 273K | <20mK to 273K |
| Platinum RTD | 14 to 1020K | 14 to 1020K | 14 to 1020K |
| Cernox™ | 200mK to 420K | 200mK to 420K | 100mK to 420K |
| Rhodium-Iron | 1.4 to 800K | 1.4 to 800K | 1.4 to 800K |
| Germanium | 200mK to 100K | 500mK to 100K | <100mK to 100K |
| Carbon Glass™ | 1.0K to 325K | 1.0K to 325K | 1.0K to 325K |
| GaAlAs Diode | 25K to 325K | 25K to 325K | 25K to 325K |
| Thermocouple | Option, >1.4K | Option, >1.4K | N/A |
| Calibration Curves | Built-in
curves for most industry standard sensors plus additional user
supplied curves. Interpolation is performed using a Cubic Spline algorithm for highest possible accuracy. |
||
| User Calibration Curves |
4 x 200 entries | 8 x 200 entries | 8 x 200 entries |
Control Loops |
4 |
4 |
3 |
| Output Type | Linear Constant-Current |
Linear Constant-Current |
Linear Constant-Current |
| Loop 1 Heater | 50W / 25W 50Ω / 25Ω Three decade ranges |
50W / 25W 50Ω / 25Ω Three decade ranges |
50W / 25W 50Ω / 25Ω Four decade ranges |
| Loop 2 Heater | 25 / 2.5 Watt, 50Ω | 25 / 2.5 Watt, 50Ω | 10 / 1.0 Watt, 50Ω Two decade ranges |
| Non-Powered loops | 2 | 2 | 1 |
| Control Modes | PID, Table, Ramp | PID, Table, Ramp | PID, Table, Ramp |
| Output Resolution | 1.0ppm (20 bits) | 1.0ppm (20 bits) | 1.0ppm (20 bits) |
| Update Rate | 15/S | 15/S | 15/S |
| PID Tables (PID zones) | 6 x 16 Auto input channel select |
6 x 16 Auto input channel select |
6 x 16 Auto input channel select |
| Autotuning | Yes | Yes | Yes |
| Data Logging | No | Yes | Yes |
Interfaces |
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| Ethernet | Yes | Yes | Yes |
Ethernet
interface includes: HTTP: Embedded Web server
for temperature monitoring and instrument configuration using any web browser, SMTP: E-mail. UDP and TCP/IP: Client for ASCII command language remote control. LabView™ drivers available for all interfaces including Ethernet TCP/IP. Cryo-con ezNet software drivers provided for quick TCP/IP communication to any Windows™ based PC. |
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| IEEE-488.2 | Yes | Optional | Optional |
| RS-232 | - | Yes | Yes |
| USB 2.0 | Yes | Optional | Optional |
| Alarms | 4 - LED and Audio | 4 - LED and Audio | 4 - LED and Audio |
| Relay Outputs | 2 (125V @ 10A) | 2 (125V @ 10A) | 4 (Optical) |
| User Interface | |||
| Front Panel Display | 240x64 Graphics TFT-LCD with LED backlight |
240x64 Graphics TFT-LCD with LED backlight |
240x64 Graphics TFT-LCD with LED backlight |
| Number of channels displayed |
2 | 4 | 4 |
| Keypad | 21 key silicon rubber |
21 key silicon rubber |
21 key silicon rubber |
| CalGen™ and Cryo-Con™ are registered
trademarks of Cryogenic Control Systems, Inc. All other product and company names are trademarks or trade names of their respective companies. |
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Tel: (858) 756 3900 Fax: (858) 759 3515
Specifications subject to change without notice. ©Cryogenic Control Systems, Inc. 1998 - 2011. |