Description
7 Liter Low Profile Refrigerated Circulator, -20°C
Code: AD7LR-20-A12E
Brand: Polyscience – USA
Refrigerated Circulators with
Advanced Digital Temperature Controller
Key Specifications
Working Temperature: From -20° up to +200°C
Temperature Stability: ±0.01°C
Safety Rating: DIN 12876-1 Class III (for use with flammable liquids)
External Temperature Control Capability: Yes
Pump: Variable-speed
External Circulation: Open- or closed-loop
- LidDock™ self-stowing reservoir cover
- DuraTop™ insulating, chemical-resistant top deck
- WhisperCool® Environmental Control System
- Cool Command™ modulated refrigeration system
- Reservoir drain
- Washable air filter
Key Features
- Intuitive 3.75” (9.5 cm) display with touch-pad control
- 4 languages: French, German, Spanish, English
- Swivel 180™ Rotating Controller
- On-board connectivity: USB-A & B, Ethernet, RS-232/RS-485, and external temperature probe
- On-screen prompts
- Automatic performance optimization and specific heat tuning
- Single-point calibration capability
Key Specifications
| Description | -20, 7 L Low Ref. Circulator |
|---|---|
| Controller Type |
Advanced Digital
|
| Display |
3.75″ Touch-Pad LCD
|
| Connectivity |
Ethernet, USB A & B, RS232/addressable RS485, External Temperature Probe
|
| Languages Supported |
4: French, German, Spanish, English
|
| Swivel 180 Rotating Controller |
Yes
|
| Working Temperature Range °C |
-20° to 200°
|
| Temperature Stability °C |
±0.01°
|
| Fluid Optimization/Specific Heat Tuning |
Automatic and/or user-adjustable
|
| Temperature Calibration Capability |
1-point
|
| Working Access (L x W x D) (cm) |
15.7 x 14.2 x 12.7 cm
|
| Pump Type |
Pressure/Suction
|
| External Temperature Control Capability |
Yes
|
| Flammability Class (DIN 12876-1) |
III (FL)
|
Common Specifications
| Working Temperature Range °F |
-4° to 392°
|
|---|---|
| Working Temperature Range °C |
-20° to 200°
|
| Nominal Cooling Capacity @ +20C (W) |
200
|
| Reservoir Capacity (gallons) |
1.85
|
| Reservoir Capacity (liters) |
7
|
| Reservoir/Tank Material |
Stainless Steel
|
| Reservoir Cover |
Included
|
| DuraTop |
Yes
|
| LidDock |
Yes
|
| Cleanable Air Filter |
Yes
|
| Working Access (L x W x D) (inches) |
6.18 x 5.59 x 5 in
|
| Working Access (L x W x D) (cm) |
15.7 x 14.2 x 12.7 cm
|
| Temperature Stability °F |
±0.02°
|
| Temperature Stability °C |
±0.01°
|
| Display |
3.75″ Touch-Pad LCD
|
| Display Resolution (Set) |
0.01
|
| Display Resolution (Read) |
0.01
|
| Pump Type |
Pressure/Suction
|
| Pump Speed |
Variable
|
| Process Connections |
1/4″ (F) NPT
|
| External Temperature Control Capability |
Yes
|
| Flammability Class (DIN 12876-1) |
III (FL)
|
| Over-Temperature Protection / Failsafe Heater Control |
Yes
|
| Low Liquid Level Protection | Yes |
| Reservoir Drain |
Yes
|
| Included Software | PolyTemp Viewer, USB driver |
| Maximum Ambient Temperature °F |
95°
|
| Maximum Ambient Temperature °C |
35°
|
| Overall Dimensions (L x W x H) (inches) |
23.2 x 16.2 x 16.2 in
|
| Overall Dimensions (L x W x H) (cm) |
58.9 x 41.1 x 41.1 cm
|
| Refrigerant |
R134a
|
| Environmental Compliance | RoHS, WEEE |
| Shipping Weight (pounds) |
90.0
|
| Shipping Weight (kilograms) |
40.8
|
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