Julabo PRESTO W85t Data Sheet

Product data sheet 1/4

PRESTO W85t

temperature control system / process system

Reactor temperature control, tests for all kinds of substances or temperature
simulation – the new PRESTO are made for highly precise temperature
control and rapid temperature changes.
PRESTO provide large heating and cooling capacities covering a working
temperature range from -92 °C to +250 °C. Highly efficient components allow
extremely fast compensation of exothermic and endothermic reactions.

Lab users benefit from high flow rates, constant pressure, and a controlled
build-up of pump pressure. Changes in the temperature-control liquid’s
viscosity are balanced dynamically. Permanent internal monitoring and
self-lubricating pumps contribute to the new PRESTO®’s long service life. A
special feature of the new PRESTO is the integrated 5.7’’ industrial touch
screen.
All important information is displayed clearly and concisely enhancing ease
of use considerably.
The new PRESTO can be operated intuitively with the tip of your finger. As
the new PRESTO operate whisper quiet, you will hardly hear them in your
laboratory. Even high room temperatures of up to +40 °C will not make the
new PRESTO sweat. Maintenance-free pumps and drives guarantee
operational readiness. Multiple interfaces permit remote control of the
PRESTO® across networks and in superordinated control systems. The
Design does away with venting slots at the sides. The required installation
space is reduced to an absolute minimum.

PRESTO W85t

Your advantages

For highly precise, external temperature applications
Rapid heating and cooling
Fast compensation of exothermic reaction
Wide working temperature ranges without changing fluids
Highest performance with small footprint
Space-saving design optimizes space utilization in your lab
NEW 5,7” industrial color TFT touch screen
well-organized view of important information with unmatched,
intuitive user friendliness
Up to 3 user level with password management
NEW USB (Host und Device)
NEW Ethernet
NEW SD-Card slot
RS232 / optional RS485 / optional Profibus DP
Stand-by input
Filling system accessible from the top

Technical Data

Order No. 9421852.T
Category Temperature Control PRESTO
Working temperature range (°C) -85 ... +250

Product data sheet 2/4

Temperature control ICC
Temperature stability (°C) ±0.05 ... ±0.1
Setting / display resolution ±0.01 °C
Integrated programmer 8x60 steps
Temperature Display TFT Touchscreen
Heating capacity (kW) 15 @ 400V; 15 @ 230V; 12.5 @ 208V
Cooling capacity (Medium: JULABO Thermal | Ethanol) °C 200 20 0 -20 -40 -60 -80

kW 2.8 2.5 2.4 2.4 2.4 2.2 0.4
Pump capacity flow rate (l/min) 35 ... 80
Pump capacity flow pressure (psi) 6.96 ... 46.42 @ 400V; 6.96 ... 46.42 @ 230V; 6.96 ...

43.51 @ 208V
Viscosity max. (cSt) 50
Pump connections M30x1.5
Refrigerant stage 1 R507
Filling volume refrigerant stage 1 (g) 700

PRESTO W85t

Global Warming Potential for 3985
Carbon dioxide equivalent stage 1 (t) 2.79
Refrigerant stage 2 R23
Filling volume refrigerant stage 2 (g) 680
Global Warming Potential for 14800
Carbon dioxide equivalent stage 2 (t) 10.064
External Pt100 sensor connection integrated
Digital interface RS232, SD memory card, USB, Ethernet, Modbus,

Alarm-out

Optional: RS485, Profibus
Analog connection input / output Optional
Ambient temperature 5 ... 40 °C
Dimensions W x L x H (inch) 24.1 x 33.3 x 49.3
Weight (LBS) 738.6
Sound pressure level (distance 1 m) max. (dBA) 69
Process volume min. (active heat exchanger volume) liters 9.5 (5)
Internal usable expansion vol. (liters) 7
Classification according to DIN12876-1 Classification III (FL)
Cooling of compressor 2-stage Water
Cooling water connection G ¾‘‘ male with barbed fittings for tubing ½’’ lD
Cooling water consumption (l/min) 2…6
Cooling water temperature (°C) <30
Cooling water differential pressure (bar) 0.5
Available voltage versions 3 x 208-230V/60Hz (+/- 5%) / 52A @ 208V, 55A @ 230V /

Without Plug

3 x 230V/50Hz (+/- 10%) / 52A / Plug 63A CEE

3 x 400V/50Hz (+/- 10%) / 31A / Plug 32A CEE