COLUMN OVEN / COLUMN THERMOSTAT VARIOTHERM 4110
For UHPLC / UPLC / HPLC / LC - COLUMN SWITCH / COLUMN SELECTION - FROM 5 to 90° C
- 5 – 90°C
- Temperature gradient programming |
- Excellent temperature
stability - Integrated solvent pre-heater |
- Vapour sensor
- Automated column selection |
Automated column selection
Select up to 6 different columns via the keyboard or the PC! This feature comes as an option and will be a great help for method development or if you want to run multiple assays on a single system. UHPLC valve available! Reduce acetonitrile use!
Higher column temperatures allow lower acetonitrile content in the mobile phase for the same separation or may even allow the use of methanol instead. An easy way to save on acetonitrile! |
Specifications |
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Parameter |
value |
conditions |
Temperature range |
5°C - 90°C, with 1°C increments 5°C - 75°C, with 1°C increments, if optional Column Selection Valve is installed |
Ambient temperature and humidity influence the lower temperature limit of the VARIOTHERM Typically, a ΔT of 18°C is feasible. |
Temperature accuracy |
Better than 0.1°C |
Measured at 30°C in the centre of the oven compartment |
Temperature stability |
Better than 0.1°C |
Measured at 30°C in the centre of the oven compartment |
Temperature reproducibility |
Better than 0.1°C |
In the centre of the oven compartment |
Temperature gradient |
Better than 0.2°C |
Measured in the column area |
Temperature change |
Up: 10°C/min from 40° to 60°C Down: 2°C/min from 60°C to 40°C |
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Time programmable temperature change |
Time base: 9hr59 total time with 1-minute increments Maximum 10 programmable steps |
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Programmable temperature ramp |
Up: 0.1 – 5.0°C/min Down: 0.1 – 1.5°C/min (75°C to 25°C) |
It is possible to program a ramp up to 9.9°C/min; however, only the ramp ranges specified can be guaranteed for the actual temperature ramp. |
Dimensions (H x W x D) |
600 x 170 x 345 mm (h x w x d) |
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Weight |
16 kg |
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Working Environment |
5 - 40°C; 30 - 80% RH |
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Power Requirements |
115/230 VAC +15/-22%,; 50/60 Hz |
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Power consumption |
454 VAmax |
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Column selection Valve |
1-to-6 port high pressure solvent selection valve: HPLC version standard UHPLC 15,000 PSI version optional |
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Control |
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Keyboard |
All functionality can be accessed and read trough the integrated keyboard with display |
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Outputs: |
Temperature or vapor alarm (relay + buzzer) |
Relay contacts: Vmax = 28 Vdc/Vac, Lmax = 0.25A |
Oven ready (relay), will be activated if the actual tempe- Lmax = 0.25A rature is within 0.5°C of the set point temperature. |
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Inputs: |
Start temperature program (TTL) |
TTL inputs are active low and must be low for at least 1 second. |
Emergency shut-down (TTL) |
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PC interface |
RS 232 is standard. USB or Ethernet possible on request. |
A MultiLink output connector allows linking of RS 232 communication to other instruments Firmware updates can be uploaded via RS 232 SparkLink 4.0 software allows control of main VARIOTHERM functions from a PC. |
VARIOTHERM COOL
P/N 4110 0000 |
VARIOTHERM COOL with COLUMN SELECTION
P/N 4110 0020 |
VARIOTHERM without COOL
P/N 4110 0030 |
VARIOTHERM without COOL with COLUMN SELECTION
P/N 4110 0040 |