Coulometric Karl Fischer Titrator LWT-A31 is a benchtop unit with 5 to 40°C ambient temperature range, 3 µg to 9999.9 µg measurement range, and offers 400 mA maximum current. Excellent low-power operation makes it possible to compact battery, enables portable function criterion for measuring electrode signal for the electrolysis end. It stability and accuracy are key factors affecting the measurement accuracy. Designed with streamline and 5 inch coloured touch screen with standard testing method used ASTMD4928, ASTMD1533 and ASTMD6304 in titration process.
Get Catalog| Maximum current | 400 mA |
| Measurement range | 3 µg to 9999.9 µg |
| Resolution | 0.1 µg |
| Precision 1 | ± 2 µg (3µg H2O to 20µg H2O) |
| Precision 2 | ± 3 µg (20µg H2O to 100µg H2O) |
| Precision 3 | ≤ 5 % (100µg H2O to 10mg H2O) |
| Data saving | 496 pcs |
| Built-in printer | Thermal printer |
| Calculation formula | 8 kinds can be selected |
| Ambient temperature | 5 to 40°C |
| Dimension | 400 × 260 × 180 mm |
| Power consumption | 50 W |
| Power Supply | AC 220 V±10%, 50Hz ±5 % |
| Net weight | 5 kg |
Coulometric Karl Fischer Titrator is widely used to determine the trace water content in liquid petroleum, chemical engineering, pharmacy, electricity, scientific research and education department.
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| Calorimeter type | Isoperibol |
| Temperature range | 5 to 40°C |
| Measurement range | 5 to 40 MJ/ kg |
| Calorimeter type | Isoperibol |
| Temperature range | 5 to 40°C |
| Measurement range | 5 to 40 MJ/ kg |
| Calorimeter type | Isoperibol |
| Oxygen filling | Fully automatic oxygen filling & releasing, fully automatic bomb raising & lowering |
| Bomb volume | 250 ml |
| Measuring Range For Aviation Gasoline | 86.0 to 105.0/MON |
| Measuring Range For Gasoline For Motor Vehicles | National standard: 65.0 to 110.0/RON National-V standard: 70 to 115.0/RON Blended gasoline: 75.0 to 120.0/RON Light gasoline: 50.0 to 85.0 /MON Isomerized gasoline: 85.0 to 120.0/RON Arene gasoline: 90.0 to 120.0/RON |
| Measuring Range For Ethanol | E93: 92.0 to 95.0/RON E97: 95.0 to 99.0/RON Judgement: 60.0 to 120.0/RON |
| Measurement item | motor gasoline and diesel |
| measurement unit of octane is ON | 40 to 120 |
| Permissible error of octane | ± 0.5 max |
| Graduated flask | 100 ml，50 ml |
| Conical flask | 100ml |
| Separatory funnel | 250ml |
| Measurement range | Room temperature ~ 150°C |
| Stirring speed | 0 ~ 1200 r / min |
| Heating power | 25 W |
| Ambient temperature | 10 °C ~ 40 °C |
| Relative humidity | ≤ 80 % |
| Ignition Mode |
| Ambient temperature | 10 °C ~ 40 ℃ |
| Relative humidity | ≤ 80 % |
| Ignition Mode | electron igniter / gas flame |
| Ambient temperature | Room temperature to 35 °C |
| Relative humidity | ≤ 85 % |
| Timing range | 1 s to 9 min 59 s |
| Ambient temperature | Room temperature to 35 °C |
| Relative humidity | ≤ 85 % |
| Timing range |
| Heating power | 2 kW |
| Cooling power | 0.5 kW |
| Steam temperature | 0 to 400℃ |
| Ambient temperature | -10°C to 35°C |
| Relative humidity | ≤ 85 % |
| Thermometer | Each one for 70°C to 90°C , 100°C to120°C , and 125°C to 150°C |
| Graduated flasks | 100 ml |
| Scale division of graduated flask | 1ml |
| Distillation flask | 125 ml |
| Beaker quantity | 600 ml |
| Ambient temperature | (-10) °C ~ 40 °C |
| Relative humidity | ≤ 85 % |
| Beaker quantity | |
| Ambient temperature | ≤ 35 ℃ |
| Relative humidity | ≤ 85 % |
| Graduated Flask | 200 ± 0.2 ml |
| Standard Water Value | 51 ± 1 s |
| Temperature Range | 0 ~ 100 °C |
| Graduated Flask | 100 ml |
| Standard Water Value | 51 ± 1 s |
| Temperature Range | 0 ~ 100 °C |
| Graduated Flask | 200 ± 0.2 ml (50 ± 0.2 ml for bituminous materials) |
| Standard Water Value | 51 ± 1 s |
| Temperature Range | 0 ~ 100 °C |
| Bath type | Oil bath |
| Bath capacity | 5000 ml ± 50 ml |
| Ambient temperature | Room temperature to 35 °C |
| Ambient temperature | 15 to 35°C |
| Relative humidity | ≤ 85% |
| Capillary viscometer | 6 capillary Pinkevitch viscometer tubes |
| Ambient temperature | (-10) °C ~ 35 °C |
| Relative humidity | ≤ 85 % |
| Capillary viscometer | 11 pieces |
| Ambient temperature | (-10) °C ~ 35 °C |
| Relative humidity | ≤ 85 % |
| Capillary viscometer | 11 pieces |
| Freezing point range | -54°C to 2°C |
| Cold bath measurement temperature range | -70° to 20°C |
| Temperature controlling accuracy | ±0.5°C |
| Measurement range | |
| Temperature controlling accuracy | |
| Refrigeration system |
| Measurement range | |
| Temperature controlling accuracy | ± 0.5 ℃ |
| Refrigeration system | New-type refrigeration compressor |
| Thermometer | 6 ℃ ~ 400 ℃ |
| Scale Division | 2 °C |
| Spout Aperture | 0.6 ~ 0.8 mm |
| Light source | |
| Temperature of grinding milk white light bulb | |
| Light hole( Φ14) |
| Light source | |
| Temperature of grinding milk white light bulb | |
| Light hole( Φ14) |
| Light source | |
| Temperature of grinding milk white light bulb | |
| Light hole( Φ14) |
| Type | Compact; Desktop |
| Design | Integrated |
| Bath | Metal bath (without water usage) |
| Temperature Range | Ambient to 150℃ |
| Temperature Precision | ± 0.1°C |
| Test Unit | 2 units |
| Samples | 2 |
| Temperature | |
| Oil bath cubage | 30 L |
| Heat capacity | |
| Temperature measurement range | |
| Temperature controlling range | 10 ℃ ~ 35 ℃ |
| Heat capacity | |
| Temperature measurement range | 10 ~ 35 ℃ |
| Temperature controlling range |
| Heat capacity | 14000 ~ 15000 J / K |
| Temperature measurement range | 10 ~ 35 ℃ |
| Temperature controlling range |
| Coking furnace | Metal furnace |
| Heating mode | Electric heating |
| Test unit | 5 units |
| Porcelain crucible | 30 ml |
| Inner iron crucible | 75 ml |
| Outer iron crucible | 190 ml |
| Porcelain crucible | |
| Inner iron crucible | |
| Outer iron crucible |
| Sample hole | 4 pieces |
| Sample quantity | 4 to 12 pieces |
| Ambient temperature | Room temperature to 35 °C |
| Sample hole | 2 pieces |
| Speed of stirring motor | 1400 rpm |
| Ambient temperature | 10 to 35°C |
| Sample hole | 4 pieces |
| Speed of stirring motor | 1400 rpm |
| Speed for sample stirring | 1000 ± 50 rpm |
| Air flow rate | |
| Max. Preset time | |
| Chamber diameter of oven |
| Air flow rate | Not less than 150 L / h |
| Max. Preset time | 99 min 59 s (100 min) |
| Chamber diameter of oven | Φ22 mm |
| Test bomb | |
| Operation temperature of water bath | RT ~ 90 °C |
| Bath temperature |
| Test bomb | Two samples or a group of parallel samples |
| Operation temperature of water bath | |
| Bath temperature | 37.8 °C |
| Ambient Temperature | 10°C to 35°C |
| Measurement Range | 0 to 100 mg |
| Resolution | 0.1 µg |
| Measurement range | 0 to 600 penetration scale |
| Timing controller | 5 sec, 8 sec, 10 sec, 12 sec, 30 sec and 60 sec |
| Time accuracy | ± 0.1 seconds |
| Measurement range | 0 to 600 penetration scale |
| Timing controller | 5 sec or 60 sec |
| Time accuracy | ± 0.1 seconds |
| Penetrometer | 0 to 600 penetration scale, 5 sec or 60 sec, ± 0.1 seconds, 0.1 penetration, ± 1 penetration, 2.5 ± 0.05 g, 700 × 400 × 750 mm, 30 kg |
| Circulatory Water Bath | 3.5 L, 5 °C to 60 °C, ± 0.1 °C, 3 L/minute, 2 m, 1200 W, AC 220V ± 10 %, 50 Hz, 600 × 400 × 650 mm, 40 kg |
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