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PRESTO W91tt
Powerful Temperature Control Systems for demanding applications with a temperature range from -91 °C to +250 °C
The PRESTO W91 Highly Dynamic Temperature Control Systems are amongst the most powerful units available. Their impressive power is harnessed by cutting-edge control technology. The W91 provides extraordinary heating, cooling, and pumping performance. But it also comes with the functions and features that make the new generation of PRESTO so unique.
Your advantages
- Extremely fast cool-down and heat-up times
- Wide working temperature range without changing the bath fluid
- Very fast compensation of exothermic and endothermic reactions
- Unsurpassed power and efficiency
- Heating capacity up to 36 kW
- Ambient temperature range +5 °C to +40 °C
- Space optimized design creates more room directly next to the units
- Integrated 5.7” industrial color touchscreen displays all essential information and enables simple fingertip control
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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
- Integrated programmer with real-time clock
- Filling level indicator and pump capacity displayed electronically
- Powerfol circulating pumps, electronically adjustable in stages or by setting the pressure value
- Interface for SD memory card
- Connections for USB, Ethernet, RS232, and Alarm output
- Optional analog connections, RS485, Profibus DP, Modbus
Technical Data
| Order No. | 9421912.TT | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Category | Temperature Control PRESTO | ||||||||||||||||||||
| Working temperature range (°C) | -91 ... +250 | ||||||||||||||||||||
| Temperature control | ICC | ||||||||||||||||||||
| Temperature stability (°C) | ±0.05 ... ±0.2 | ||||||||||||||||||||
| Setting / display resolution | 0.01 °C | ||||||||||||||||||||
| Integrated programmer | 8x60 steps | ||||||||||||||||||||
| Temperature Display | TFT Touchscreen | ||||||||||||||||||||
| Heating capacity (kW) | 36 | ||||||||||||||||||||
| Cooling capacity (Medium: JULABO Thermal | Ethanol) |
|
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| Pump capacity flow rate (l/min) | 26 ... 80 | ||||||||||||||||||||
| Pump capacity flow pressure (bar) | 0.5 ... 3.0 | ||||||||||||||||||||
| Viscosity max. (cSt) | 50 | ||||||||||||||||||||
| Pump connections | M38x1.5 | ||||||||||||||||||||
| Refrigerant stage 1 | R404A | ||||||||||||||||||||
| Filling volume refrigerant stage 1 (g) | 4500 | ||||||||||||||||||||
| Global Warming Potential for R404A | 3922 | ||||||||||||||||||||
| Carbon dioxide equivalent stage 1 (t) | 17.649 | ||||||||||||||||||||
| Refrigerant stage 2 | R23 | ||||||||||||||||||||
| Filling volume refrigerant stage 2 (g) | 1250 | ||||||||||||||||||||
| Global Warming Potential for R23 | 14800 | ||||||||||||||||||||
| Carbon dioxide equivalent stage 2 (t) | 18.5 | ||||||||||||||||||||
| External Pt100 sensor connection | integrated | ||||||||||||||||||||
| Digital interfaces |
RS232 Optional Profibus SD memory card USB Ethernet Modbus Alarm-out |
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| Analog connection input / output | Optional | ||||||||||||||||||||
| Ambient temperature | 5 ... 40 °C | ||||||||||||||||||||
| Dimensions W x L x H (cm) | 95 x 127 x 190 | ||||||||||||||||||||
| Weight (kg) | 870 | ||||||||||||||||||||
| Sound pressure level (distance 1 m) max. (dBA) | 74 | ||||||||||||||||||||
| Process volume min. (active heat exchanger volume) liters | 28 (16) | ||||||||||||||||||||
| Internal usable expansion vol. (liters) | 40 | ||||||||||||||||||||
| Classification according to DIN12876-1 | Classification III (FL) | ||||||||||||||||||||
| Description | All data refers to the nominal voltage of 400 V, 3-phase, nominal frequency of 50 Hz and ambient temperature of +20 °C. Cooling capacity measured at max. pump stage. All pump data refers to a bath fluid with a specific density of 1 kg/dm³. | ||||||||||||||||||||
| Cooling of compressor | 2-stage Water | ||||||||||||||||||||
| Cooling water connection | G ¾‘‘ male with barbed fittings for tubing ½’’ lD | ||||||||||||||||||||
| Cooling water consumption (l/min) | 16…43 | ||||||||||||||||||||
| Cooling water temperature (°C) | <30 | ||||||||||||||||||||
| Cooling water differential pressure (bar) | 0.5 | ||||||||||||||||||||
| Available voltage versions | 3 x 400V/50Hz (+/- 10%) / 76A / Without Plug 3 x 480V/60Hz (+/- 10%) Without Plug |
Tip: Counter-cooling your PRESTO with a Recirculating Cooler
If there is no cooling water, the PRESTO W91tt can be cooled down with a recirculating cooler with a cooling capacity of 25 kW at a flow temperature of 15°C. The required circulating pump has to ensure a flow rate of 26 l/min at a counter-pressure of 0.5 bar. The recommended minimum tank volume is 100 liters.Characteristics
Display
State-of-the-art display technology
TFT Display for comfortable user guidance, colored display of measurement values, graphs and control options, user-defined views
TFT Display for comfortable user guidance, colored display of measurement values, graphs and control options, user-defined views
Operation
Optimal ease of use
Touch screen for direct operation via display
Touch screen for direct operation via display
Instructions inside
Help menus and explanations in plain text for all control options, help messages and warning messages
Help menus and explanations in plain text for all control options, help messages and warning messages
Multilingual user guidance
Language selection for display of control options, notifications and warning messages via touchscreen
Language selection for display of control options, notifications and warning messages via touchscreen
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
Administrator level for customizing instrument settings, user levels with limited permissions for fast and safe defined access, password protection, all levels adjustable
Temperature Control
For perfect results
‘Intelligent Cascade Control’, automatic & self optimizing adjustment of PID control parameters, temperature stability ±0.01 °C ... <±0.2 °C
‘Intelligent Cascade Control’, automatic & self optimizing adjustment of PID control parameters, temperature stability ±0.01 °C ... <±0.2 °C
Full control
‘Temperature Control Features’, for individual optimization, access to all important control parameters, additional settings for band limit, limits, co-speedfactor etc.
‘Temperature Control Features’, for individual optimization, access to all important control parameters, additional settings for band limit, limits, co-speedfactor etc.
Control from the external application
External Pt100 sensor connection for precise measurement and control directly in the external application
External Pt100 sensor connection for precise measurement and control directly in the external application
Highest measuring accuracy
‘Absolute Temperature Calibration’ for manual compensation of a temperature difference, 3-point calibration
‘Absolute Temperature Calibration’ for manual compensation of a temperature difference, 3-point calibration
Refrigeration Technology
Consistent cooling capacity
Easily removable venting grid for quick and easy cleaning
Easily removable venting grid for quick and easy cleaning
100 % Cooling capacity
‘Active Cooling Control’ for cooling available throughout the entire working temperature range, fast cool-down even at higher temperatures
‘Active Cooling Control’ for cooling available throughout the entire working temperature range, fast cool-down even at higher temperatures
Energy saving cooling
Proportional cooling control for automatic adjustment of cooling power or temporary switch-off of compressor as needed to save up to 90 % energy in comparison to unregulated cooling machines
Proportional cooling control for automatic adjustment of cooling power or temporary switch-off of compressor as needed to save up to 90 % energy in comparison to unregulated cooling machines
Technical Features
Intelligent pump system
Reliable and consistent pump capacity, electronically adjustable pump stages or pressure value, automatic adjustment of pump capacity to viscosity
Reliable and consistent pump capacity, electronically adjustable pump stages or pressure value, automatic adjustment of pump capacity to viscosity
Communication via networks
For the remote control of instruments via Ethernet networks, full access to all functions of the unit via a networkcapable PC
For the remote control of instruments via Ethernet networks, full access to all functions of the unit via a networkcapable PC
Intelligent communication
USB connection for data exchange (e.g. service data) or for wireless remote control via WirelessTEMP®
USB connection for data exchange (e.g. service data) or for wireless remote control via WirelessTEMP®
Data exchange via SD-Card
For data exchange (e.g. service data) via SD memory card
For data exchange (e.g. service data) via SD memory card
Serial connection
RS232 interface for PC connection, e.g. for data communication and recording of measured values
RS232 interface for PC connection, e.g. for data communication and recording of measured values
Comfortable program control
Integrated programmer for the execution of time and temperature dependant profiles, 8 temperature profiles with 60 steps max., with real time clock
Integrated programmer for the execution of time and temperature dependant profiles, 8 temperature profiles with 60 steps max., with real time clock
Quiet as a whisper
Efficient components produce only a minimal sound decibel level
Efficient components produce only a minimal sound decibel level
Space-saving footprint
All connections as well supply and exhaust air are located at the front or rear, no venting grids on the sides, units can be placed close to each other or the application
All connections as well supply and exhaust air are located at the front or rear, no venting grids on the sides, units can be placed close to each other or the application
Continuous operation up to +40 °C
Robust temperature control instrument, continuous operation even at ambient temperatures of up to +40 °C
Robust temperature control instrument, continuous operation even at ambient temperatures of up to +40 °C
Easy transport by one person
Ergonomic design facilitates moving and positioning by one person
Ergonomic design facilitates moving and positioning by one person
Filling level at a glance
Backlit indicator for selected pump stages and filling volume
Backlit indicator for selected pump stages and filling volume
Warning & Safety Functions
Early warning system for high/low temperature limits
Maximum safety for applications, optical and audible signal when limits are exceeded.
Maximum safety for applications, optical and audible signal when limits are exceeded.
Duplicate safety
Adjustable high temperature cut-off for internal tank and for integrated expansion vessel
Adjustable high temperature cut-off for internal tank and for integrated expansion vessel
For flammable bath fluid
Classification III (FL) according to DIN 12876-1
Classification III (FL) according to DIN 12876-1
Quick support
If an error occurs, the integrated Black-Box function permits fast diagnosis by the JULABO service team
If an error occurs, the integrated Black-Box function permits fast diagnosis by the JULABO service team
Technical changes without prior notification.
Images may deviate from the original.
We would be pleased to submit a non-binding offer for the selected product or answer all pertinent questions.
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Contact
JULABO GmbH
Gerhard-Juchheim-Strasse 1
77960 Seelbach / Germany
Tel: +49 7823 51-0
info.de@julabo.com
www.julabo.com
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