The following products have been found matching your search "wiederholtem": 11
The new microlitre pipette WITOPET expert offers comfort thanks to an ergonomic handle and effortless pipetting thanks to a smooth-running pipetting button. Its longevity is guaranteed by simple maintenance and calibration. The pipette fulfils standards such as DIN EN ISO 8655 and offers sterile handling and calibration stability, even after repeated autoclaving.
Your advantages at a glance:
- reverse pipetting for accurate and precise intake and delivery of liquids of different viscosities
- soft grip prevents heat transfer to the internal components, ensuring precise pipetting
- counter locking mechanism prevents volume changes during pipetting
- blow-out system allows every last drop to be released
- new tip cone with high mechanical strength and very good resistance to chemicals
- interchangeable drops for pipette identification
- perfected ergonomics for maximum comfort with new, ergonomic handle with soft part
- particularly light in weight and yet robust
- minimum effort required when pipetting to avoid excessive strain during pipetting
- simple and quick maintenance and calibration
- completely autoclavable for 15 minutes at 121°C (DIN EN ISO 285)
- excellent calibration stability: no recalibration is required even after multiple autoclaving
*2-10 ml version without tip ejector
Artikelliste
| Order number | Model | Version | Autoclavable | Color | Channels | Increment | Volume | Inaccuracy | Imprecision |
|---|---|---|---|---|---|---|---|---|---|
| 5 402 002 E | Witopet expert 0.1-2.5 μl | Variable | at 121°C | grey | 1 | 0.01 µl | 0.1-2.5 μl | 12.00% | 6.00% |
| 5 402 010 E | Witopet expert 0.5-10 μl | Variable | at 121°C | grey | 1 | 0.10 µl | 0.5-10 μl | 2.50% | 1.50% |
| 5 402 020 E | Witopet expert 2-20μl | Variable | at 121°C | grey | 1 | 0.10 µl | 2-20μl | 3.00% | 2.00% |
| 5 402 100 E | Witopet premium 10-100 μl | Variable | at 121°C | yellow | 1 | 0.50 µl | 10-100 μl | 3.00% | 1.50% |
| 5 402 200 E | Witopet expert 20-200 μl | Variable | at 121°C | yellow | 1 | 1.00 µl | 20-200 μl | 2.00% | 0.80% |
| 5 402 901 E | Witopet expert 100-1000 μl | Variable | at 121°C | blue | 1 | 5.00 µl | 100-1000 μl | 2.00% | 0.70% |
| 5 402 950 E | Witopet expert 0.5-5 ml | Variable | at 121°C | green | 1 | 0.05 ml | 0.5-5 ml | 2.00% | 0.60% |
| 5 402 910 E | Witopet expert 2-10 ml | Variable | at 121°C | green | 1 | 0.10 ml | 2-10 ml | 3.00% | 0.60% |
Ideal for:
- repetitive extraction (Kjeldahl, Soxhlet and other extraction procedures), laboratory reflux and distillation applications
Features:
- nickel chrome heating element
- coil type: acid-resistant, long life time
- highly processed aluminium case offers robust standing, easy handling and usability on the magnetic stirrer
- lower profile for space-saving convenience
- three support rods and two hooks included
- CE certified and unique serial number for tracing
Versions:
- 3-places heating mantle (round bottom)
- 6-places heating mantle for flasks and beakers (round or flat bottom)
Artikelliste
| Order number | Model | Version | Height (inner) | Width (Outer) | Length (outer) | Height (outer) | Form | Controller | Vessel diameter | Vessel capacity | Power consumption | Temperature range |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DH.WHM12291 | WHM 230 V, 6 places | 6 places | 50 mm | 800 mm | 240 mm | 110 mm | flat | individual controller for each place | Ø83 - 86 mm | 250 ml / 300 ml | 840 W | 100°C - 450°C |
| DH.WHM12293 | WHM 230 V, 6 places | 6 places | 50 mm | 800 mm | 240 mm | 110 mm | round | individual controller for each place | Ø83 - 86 mm | 250 ml / 300 ml | 840 W | 100°C - 450°C |
| DH.WHM12295 | WHM 230 V, 6 places | 6 places | 65 mm | 950 mm | 270 mm | 130 mm | round | individual controller for each place | Ø102 - 105 mm | 500 ml | 1440 W | 100°C - 450°C |
| DH.WHM12391 | WHM 230 V, 3 places | 3 places | 65 mm | 550 mm | 270 mm | 130 mm | round | individual controller for each place | Ø102 - 105 mm | 500 ml | 720 W | 100°C - 450°C |
| DH.WHM12393 | WHM 230 V, 3 places | 3 places | 75 mm | 690 mm | 340 mm | 170 mm | round | individual controller for each place | Ø130 - 131 mm | 1000 ml | 1050 W | 100°C - 450°C |
The digital burette TITREX is ideal for a fast and sensitive titration “drop by drop”. One instrument simulates all volumes up to 99.99 ml. Moreover, titration is possible without any loss of reagent! From air-purging, necessary for a precise titration, to disassembly of the burette in the end of the titration – the reagent, that is not needed for the titration flows back into the bottle! TITREX‘s accuracy and precision are of highest quality. Our error ranges are better than those required by ISO 8655-3. The memory function allows saving of up to 1000 values, which can be transferred to a PC and read using the included software.
Your advantage at a glance:
- high quality precision instrument, made in Germany
- highest accuracy and precision, our error ranges are better than the DIN EN ISO 8655-3 requirements
- resistant against most acids and alkalis
- exclusive instrument with 0% loss of reagent - air-purging and draining within a closed circuit
- 360° rotatable valve block for your added safety
- two-in- one instrument: dosing & titration
- covers the complete volume range up to 50 ml when used as a dispenser and up to 99.99 ml when used as a burette
- easy and precise volume setting
- vertical valves: no sedimentation, no contamination
- 100 % drip-free by turning the cannula at 180°
- no transcriptions errors due to automatic value storage and the possibility of
- transferring values to a PC via RS232 interface (USB adapter optional available)
- calibration: standard with water of 20°C
- software enables saving the next calibration date
- recalibration for liquids of different viscosities possible e.g. determination of acid content in milk
- easy to dismantle and to clean, valve block autoclavable at 121°C
- automatic power-cut-off after three minutes
- including NiMH 1,2V 2100mAh battery
- individual certificate, CE label and serial number
- DE-M marked according to the German calibration law
Artikelliste
| Order number | Model | Version | Autoclavable | Thread | Systematic errors ISO | Systematic errors witeg | Random errors ISO | Random errors witeg | Volume | Volume adjustment | Accessories |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 497 050 | TITREX premium | premium | Valve block at 121°C | GL45 | ±0.1 ml | ±0.03 ml | ≤0.05 ml | ≤0.01 ml | 0 - 50 ml | Handwheels (left and right) | incl. TITREXSOFT and RS232 interface cord |
| 5 497 050 E | TITREX eco | eco | Valve block at 121°C | GL45 | ±0.1 ml | ±0.1 ml | ≤0.05 ml | ≤0.05 ml | 0 - 50 ml | Handwheels (left and right) | TITREXSOFT and RS232 interface cord not included in the scope of supply |
| 5 497 150 | TITREX fine adjustment | finely adjustable | Valve block at 121°C | GL45 | ±0.1 ml | ±0.03 ml | ≤0.05 ml | ≤0.01 ml | 0 - 50 ml | Handwheels (left and right) | incl. TITREXSOFT and RS232 interface cord |
Weighing dishes, PS, Model SQ, 7 ml, white, 43 x 43 x 8 mm Case = 1000 pcs.
Weighing dishes, PS, Model SQ, 100 ml, white, 78,5 x 78,5 x 23 mm Case = 1000 pcs.
Weighing dishes, PS, Model SQ, 250 ml, white, 134 x 134 x 23 mm Case = 1000 pcs.
Weighing dishes, PS, Model DS, 5 ml, diamond shaped, white, 31 x 53 x 5,3 mm, Case = 1000 pcs.
Weighing dishes, PS, Model DS, 30 ml, white, 56 x 85 x 14,5 mm, Case = 500 pcs.
Weighing dishes, PS, Model DS, 30 ml, black, 56 x 85 x 14,5 mm Case = 500 pcs.
Weighing dishes, PS, Model DS, 100 ml, white, 96 x 134,5 x 18,5 mm, Case = 250 pcs.
Weighing dishes, PS, Model DS, 100 ml, black, 96 x 134,5 x 18,5 mm Case = 250 pcs.