PRESTO W91tt Process system 11 kW cooling capacity for dynamic temperature changes down to -91 °C
Performance data depends on the mains voltage in the country of use. Please select:
Country of use | Mains voltage | Plug | JULABO voltage version code
Order No. | see refrigerant options | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Working temperature range | -91 ... +250 °C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Temperature stability | ±0.05 ... ±0.2 °C | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Heating capacity | 36 kW | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cooling capacity
* Performance specifications measured in accordance with DIN12876. Cooling capacities up to 20 °C measured with ethanol; over 20 °C with thermal oil unless otherwise specified. Performance specifications apply at an ambient temperature of 20 °C. Performance values may differ with other bath fluids.
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Pump capacity flow rate | 26 ... 80 l/min | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pump capacity flow pressure | 0.5 ... 3 bar | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dimensions (W × L × H) |
95 x 127 x 190 cm |
Product Features
- Rapid heating and cooling
- Wide working temperature ranges using one bath fluid
- Designed to quickly compensate exothermic and endothermic reactions
- Unsurpassed power and efficiency
- Heating capacity up to 36 kW
- Cooling capacity up to 11 kW
- Pump pressure up to 5.5 bar, max. flow rate 80 l/min
- Temperature stability ±0.05 °C ... ±0.2 °C
- 5,7” industrial color TFT touch screen
- Connections for USB, Ethernet, RS232, and Alarm output
- Modbus
- Ambient temperature range +5 °C to +40 °C
- Space optimized design creates more room directly next to the units
- Extensive warning, protection, and monitoring functions with detailed self-explanatory messages
- ICC cascade control for extraordinary precision, temperature stability ±0.05 °C … ±0.2 °C
- Electronic level indication
- Powerful circulating pumps, select a stage or a specific pressure
- SD-Card slot
- Analog connections, RS485, Profibus DP (accessory)
- Intelligent warning and safety functions
Dimensions (W × L × H) |
95 x 127 x 190 cm |
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Internal usable expansion volume | 40 l |
Minimal process volume | 28 l |
Active heat exchanger volume | 16 l |
Weight | 870 kg |
Pump connections | M38x1.5 male |
Cooling Water Connection | G¾ in |
Working temperature range | -91 ... +250 °C |
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Temperature stability | ±0.05 ... ±0.2 °C |
Setting the resolution of the temperature display | 0.01 °C |
Temperature display resolution | 0.01 °C |
Ambient temperature | +5 ... +40 °C |
Performance data depends on the mains voltage in the country of use. Please select:
Country of use | Mains voltage | Plug | JULABO voltage version code
Heating capacity | 36 kW | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cooling capacity
* Performance specifications measured in accordance with DIN12876. Cooling capacities up to 20 °C measured with ethanol; over 20 °C with thermal oil unless otherwise specified. Performance specifications apply at an ambient temperature of 20 °C. Performance values may differ with other bath fluids.
|
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Pump capacity flow rate | 26 ... 80 l/min | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pump capacity flow pressure | 0.5 ... 3 bar | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Viscosity max. | 50 cST | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Power | 76 A |
Cooling of compressor | 2-stage Water |
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Cooling water pressure max. | 6 bar |
Cooling water difference pressure | 0.5 bar |
Cooling water temperature max. | 35 °C |
Cooling water consumption | 16 ... 43 l/min |
Sound pressure level | 74 dbA |
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Classification according to DIN12876-1 |
Classification III (FL) |
IP Code according to IEC 60529 |
IP 21 |
Pump type | Centrifugal Pump (Magnetically coupled) |
Interfaces | Alarm output / Ethernet / Modbus / Profibus optional / RS232 / RS485 optional / Reg/Eprog optional / SD memory card / Standby-Input optional / USB |
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External pt100 sensor connection | integrated |
2nd external Pt100 sensor connection | accessory |
Integrated programmer | 8x60 steps |
Temperature control | ICC |
Absolute temperature calibration | 3 Point Calibration |
Temperature display | 5.7" TFT Touchscreen |
Temperature setting | Touchscreen |
9421912.07.TT | 400V/3PNPE/50Hz (Without Plug) (R404A) |
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9421912.17.TT | 480V/3P(N)PE/60Hz (Without Plug) (R404A) |
9421912.S1.07.TT | 400V/3PNPE/50Hz (Without Plug) (R449A) |
Overview
Contact expertAccessory for PRESTO W91tt
Benefits
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Touch display. Perfect operation.
With the touch display, the user always has an overview of all values and functions. The intuitive and multilingual menu structure enables perfect control. -
Convenience for several users
Administrator level for customizing instrument settings, user levels with limited permissions for fast and safe defined access, password protection, all levels adjustable -
100 % Cooling capacity
‘Active Cooling Control’ for cooling available throughout the entire working temperature range, fast cool-down even at higher temperatures -
Intelligent temperature control.
Intelligent cascade control - automatic and self-optimizing adaptation of the PID control parameters with external stability of +/- 0.05 °C.