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Description
PRESTO Process System Compact CirculatorsOverview The A30, A40 and W40 process circulators combine high performance and a very compact design with the advantages of the PRESTO series for a working temperature range down to 30 or 40 C. Air cooled or water cooled The new PRESTO units are available as air cooled or water cooled units. Air cooled units do not require water and can be installed anywhere. If you are looking for a flexible solution or if you expect to move the unit frequently, an
Overview
The A30, A40 and W40 process circulators combine high performance and a very compact design with the advantages of the PRESTO series for a working temperature range down to -30 or -40 °C.
Air-cooled or water-cooled The new PRESTO units are available as air-cooled or water-cooled units.
- Air-cooled units do not require water and can be installed anywhere. If you are looking for a flexible solution or if you expect to move the unit frequently, an air-cooled unit will be the best choice. However, it is important to know that air-cooled units slightly elevate the ambient temperature during operation.
- Water-cooled units must be connected to an existing cooling water line. These units are even more quiet and can be virtually enclosed during operation. Robust heat exchangers are installed in the water-cooled new PRESTO units. Clogging of the heat exchanger by particles or impure water is virtually impossible.
Features:
- Heating capacity up to 2.7 kW
- Cooling capacity up to 1.2 kW
- Pump pressure up to 19 psi, max. flow rate 40 l/min
- Temperature stability ±0.01 °C ... ±0.05 °C
- Built-in 5.7’’ industrial color touchscreen
- Ports for USB, Ethernet, RS232, Modbus
- Alarm output
- External Pt100 sensor connection
- Analog connections, RS485, Profibus DP (accessory)
- Second external Pt100 sensor connection for A40 and W40 (accessory)
- USB (host and device)
- Ethernet interface
- Slot for SD cards
- Modbus
- RS232
Key Attributes
| Type | Circulating |
| Incubation | Yes |
| Refrigeration | Yes |
| Temp Range (°C) | -40 ... +250°C (-30°C for A30 model) |
| Capacity (L) | N/A |
| Circulation | External Only |
| Brand | Julabo |
| MaxFlow Rate (l/min) | 15, or 38 |
| Temp Stability (°C) | ±0.01 to 0.05°C |
| Timer | Yes |
| Alarms | Yes |
| Digital or Mechanical | Digital |
| Data connection | Yes |
| Tank Material | N/A |
| Sample Agitation | No |
| Media Racks Available | No |
| Warranty (years) | 1 |
| Weight (lb) | 137-174 |
Manufacturer Specifications
|
Dimensions and volumes |
A30 |
A40 |
W40 |
|
Dimensions (W × L × H) |
9.8 x 23.2 x 24.4 in. |
13 x 23.2 x 26.4 in. |
13 x 23.2 x 26.4 in. |
|
Internal usable expansion volume |
1.5 l |
2.7 l |
2.7 l |
|
Minimal process volume |
2.4 l |
3.5 l |
3.5 l |
|
Active heat exchanger volume |
1.4 l |
1.7 l |
1.7 l |
|
Weight |
136.7 lbs |
174.2 lbs |
172 lbs |
|
Pump connections |
M24x1.5 male |
M24x1.5 male |
M24x1.5 male |
|
Working temperature range |
-30.0 ... +250.0 °C |
-40.0 ... +250.0 °C |
-40.0 ... +250.0 °C |
|
Temperature stability |
±0.01 ... ±0.05 °C |
±0.01 ... ±0.05 °C |
±0.01 ... ±0.05 °C |
|
Setting the resolution of the temperature display |
0.01 °C |
0.01 °C |
0.01 °C |
|
Temperature display resolution |
0.01 °C |
0.01 °C |
0.01 °C |
|
Ambient temperature |
+5.0 ... +40.0 °C |
+5.0 ... +40.0 °C |
+5.0 ... +40.0 °C |
|
Data based on voltage version: |
208V/60Hz (Nema N6-20 Plug) |
208V/60Hz (Nema N6-20 Plug) |
208V/60Hz (Nema N6-20 Plug) |
|
Heating capacity |
2 kW |
2.3 kW |
2.3 kW |
|
Cooling capacity (Medium: Ethanol) |
200°C=0.5kW \ 100°C=0.5kW \ 20°C=0.5kW \ 0°C=0.4kW \ -10°C=0.3kW \ -20°C=0.2kW \ -30°C=0.05kW |
200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=0.9kW \ -10°C=0.8kW \ -20°C=0.6kW \ -30°C=0.3kW \ -40°C=0.1kW |
200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=1kW \ -10°C=0.8kW \ -20°C=0.55kW \ -30°C=0.3kW \ -40°C=0.07kW |
|
Pump capacity flow rate |
15 l/min |
16 ... 38 l/min |
16 ... 38 l/min |
|
Pump capacity flow pressure |
7.3 bar |
1.5 ... 18.9 psi |
1.5 ... 18.9 psi |
|
Viscosity max. |
50 cST |
50 cST |
50 cST |
|
Refrigerant stage 1 |
R449A |
R449A |
R449A |
|
Global Warming Potential for R449A |
1397 |
1397 |
1397 |
|
Filling volume |
314 g |
430 g |
380 g |
|
Carbon dioxide equivalent |
0.439 t |
0.601 t |
0.531 t |
|
Cooling of compressor |
1-stage Air |
1-stage Air |
1-stage Water |
|
Other |
N/A |
N/A |
Cooling water pressure max. 87 ... 79.8 psi |
|
Sound pressure level |
54 dbA |
55 dbA |
53 dbA |
|
Classification according to DIN12876-1 |
Classification III (FL) |
Classification III (FL) |
Classification III (FL) |
|
IP Code according to IEC 60529 |
IP 21 |
IP 21 |
IP 21 |
|
Pump type |
Centrifugal Pump (Magnetically coupled) |
Centrifugal Pump (Magnetically coupled) |
Centrifugal Pump (Magnetically coupled) |
|
External pt100 sensor connection |
integrated |
integrated |
integrated |
|
2nd external Pt100 sensor connection |
not available |
accessory |
accessory |
|
Integrated programmer |
8x60 steps |
8x60 steps |
8x60 steps |
|
Temperature control |
ICC |
ICC |
ICC |
|
Absolute temperature calibration |
3 Point Calibration |
3 Point Calibration |
3 Point Calibration |
|
Temperature display |
5.7" TFT Touchscreen |
5.7" TFT Touchscreen |
5.7" TFT Touchscreen |
|
Temperature setting |
Touchscreen |
Touchscreen |
Touchscreen |
|
Cooling Water Connection |
N/A |
N/A |
G¾ in. |
|
Cooling water temperature max. |
N/A |
N/A |
40 °C |
|
1.0Cooling water consumption |
N/A |
N/A |
1 l/min |
|
Cooling water difference pressure |
N/A |
N/A |
7.3 bar |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy