Refrigerated circulator 20 liter, -30°C
- Polyscience - SD20R-30-A11B
Provides optimal cooling for your samples
The Refrigerated circulator 20 liter, -30°C is extremely easy to use and maintain, it combines design innovation with highly intuitive operation to deliver convenient and reliable liquid temperature control for a wide range of applications.
Set and read to 0.1°C, 170°C maximum temperature, ±0.04°C temperature stability, and a 2-speed pump make the Standard Digital Temperature Controller an economical and reliable choice for a variety of laboratory applications, including those requiring closed-loop external circulation. Cool Command™ functionality permits faster cool downs from high temperatures.
RS232 serial communication capability allows control and data logging via a PC or other remote device.
Plain-text prompts and intuitive controls guide you quickly through setup. Intelligent touch and scroll display makes it easy to make both large and small set-point adjustments.
User-settable high-temperature safety provides over-temperature and lowliquid-level protection, and adjustable high and low limits guard against unintended set-point changes.
| Temperature Control Type | Standard digital |
| Product Weight | 130 lbs (58.9 kg) |
| Approvals | RoHS, WEEE, ETL, Flammability Class (DIN 12876-1) I (NFL) |
| Product Length | 24" (61 cm) |
| Product Height | 26.9" (68.3 cm) |
| Bath Volume | 5.28 gal (20 L) |
| Connector Type(s) | 0.25" (6.35 mm) female NPT, RS-232 serial output |
| Power Requirements | 120 VAC, 60 Hz, 1 Ph, 13 A |
| Product Width | 16.6" (41.9 cm) |
| Product Type | Refrigerated Circulator |
| Application(s) | Cooling |
| Working Temperature Range | -22 to 338°C (-30 to 170°C) |
| Temperature Stability | ±0.08°F (±0.04°C) |
| Heating Capacity | 1,100 W |
| Cooling Capacity | 165 W at -4°F (-20°C); 505 W at 32°F (0°C); 915 W at 68°F (20°C); 915 W at -212°F (100°C) |
| Pump Flow Rate | 2.9 GPM (11 LPM) |
| Refrigerant Type | R404a |
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