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Thermostatic baths for viscosity measurement, Proline clear-view thermostats

Supplier: Lauda
The Clear-view thermostats are designed for direct observation of objects under temperature control and are thus particularly suitable for viscosity measurement.

The viscosity of Newtonian liquids is extremely dependent on temperature. Depending on the measurement medium, a deviation of 0,5 to 2% can be expected for a temperature deviation of ±0,1 °C, therefore a stable thermostatically controlled bath is recommended for accurate, reproducible viscosity measurement.

The PVL models have five layers of insulating glass and are suitable for low temperatures down to -60 °C. To achieve rapid response to a selected temperature change near ambient temperature and achieve temperatures below ambient a Lauda add-on cooler is required* see chapter 461.

  • Large front and back window panels
  • Choice of models to suit different ranges of temperature requirements - all with consistent temperature stability
  • Bath vessel made of stainless steel with handles and drain tap
  • Choice of thermostat, either Master or Command versions

Master Thermostats

  • LED display with 0,01 °C resolution
  • Simple three- key operation with audible/visual alarms for over-temperature and bath levels
  • Simple temperature probe calibration
  • Up-gradable at a later date by addition of the Command module

Command Thermostats

The Proline Command thermostat is an additional module that can be easily mounted on the Master module or be used for remote operation - up to 50 metres from bath. It provides the following additional features:

  • The Proline Command thermostat is an additional module that can be easily mounted on the Master module or be used for remote operation \endash up to 50 metres from bath. It provides the following additional features:
  • Fixed temperature; the user can select and edit 8 temperatures
  • Programmable control timer (real time clock) with storage of up to 150 temperature/time segments, each of which can be divided into 5 programs
  • Data input via either cursor keys or numerical soft keys
  • Back-lit multi-graphic display with clear text messages or temperature curves
  • Integrated opto-decoupled RS232/485 interface as standard

  • Fixed temperature; the user can select and edit eight temperatures
  • Programmable control timer (real time clock) with storage of up to 150 temperature/time segments, each of which can be divided into five programs
  • Data input via either cursor keys or numerical soft keys
  • Back-lit multi-graphic display with clear text messages or temperature curves
  • Integrated opto-decoupled RS232/485 interface as standard




 

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Master thermostats
Description Pk VWR Catalog Number Quantity
PV 15 1 LAUDL001546
PV 24 1 LAUDL001547
PV 36 1 LAUDL001548
PVL 15 1 LAUDL001552
PVL 24 1 LAUDL001553

Command thermostats
Description Pk VWR Catalog Number Quantity
PV 15 C 1 LAUDL001549
PV 24 C 1 LAUDL001550
PV 36 C 1 LAUDL001551
PVL 15 C 1 LAUDL001554
PVL 24 C 1 LAUDL001555
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SPECIFICATIONS

Model PVL 24/PVL 24 C PVL 15/PVL 15 C PV 36/PV 36 C PV 24/PV 24 C PV 15/PV 15 C PVL 15/PVL 15 C PVL 24/PVL 24 C PV 15/PV 15 C PV 36/PV 36 C PV 24/PV 24 C
Temperature range (°C) -60*...+100 0*...230 -60*...+100 0*...230
Temperature stability (°C) 0,01
Heating capacity (kW) 3,5
Bath capacity (l) 19 - 24 11 - 15 28 - 36 19 - 24 11 - 15 19 - 24 11 - 15 28 - 36 19 - 24
Bath opening (mm) 405×135 230×135 585×135 405×135 230×135 405×135 230×135 585×135 405×135
Bath depth (mm) 320
Glass panel (mm) 326×230 149×230 506×230 326×230 149×230 326×230 149×230 506×230 326×230

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