Precise heating for accurate results
Isothermal heaters fitted internally to the centrifuge chamber give precise temperature control to within +/-1 °C.

Fast and easy operation
9 programme memories allow a user to configure the instrument to automatically operate to the specified test parameters, saving time, easing operation and assisting repeatability. A ‘Quick Run’ mode allows short runs of up to 99 seconds.

Safety features
A motor driven lid latch with a safety interlock prevents the centrifuge operation while the lid is unlocked. Imbalance detection and over-temperature protections protects the motor and chamber from damage.

Setafuge Hazard Reduction System
The optional Setafuge Hazard Reduction System (90010-0) can be fitted into the centrifuge to extract vapours from the chamber and significantly reduce vapour hazards.

Supplied with;
Rotor
Buckets and cushions

An uninterrupted view of viscometer tubes is provided by an oversize double glazed front panel with the outer panel made from toughened safety glass to BS 3463. The outer panel is removable for easy cleaning.

A removeable and recessed 6 place top plate has 62 mm apertures and covers with provision for two thermometer holders. The recessed design allows viscometer tubes to sit low in the bath and provides you with a much improved vision of the upper timing marks on the viscometer tubes.

The instrument can hold seven viscometer tubes when used with the optional viscometer tube plate 84202-0 and 51 mm viscometer tube holders. A digitally controlled thermostir unit heats and stirs the bath, maintaining the temperature between 37 and 150 °C. A baffle helps ensure that the temperature is uniform throughout the bath.

When performing tests in higher ambient temperatures, you can connect an external cooling supply to the instrument’s internal cooling coil. The coolant circulates through the internal cooling coil, providing a temperature differential and allowing the thermostir to control the bath temperature more efficiently. The 99300-4 Mini Low Temperature Bath/Circulator can supply chilled water to the KV-6 Viscometer Bath for use at high ambient temperatures.

The large 50 litre capacity ensures minimum temperature recovery time after loading of bath, improving sample throughput.

Supplied with; Mains lead and instruction manual.

Supplied with;
Set of 17 cast-iron weights on trolley (6 x 5 kg, 3 x 2 kg, 3 x 1 kg, 1 x 500 g, 4 x 100 g)
1000 x IP 239 test balls (ISO 683-17, ISO 3290-1 Grade G5)
Torque wrench with adjusting key and certificate of calibration
Ball chuck
Instruction manual

Direct correlation to ASTM D613 (ISO 5165) engine tests:
The traditional Cetane Engine methods establish an ignition delay period for the test fuel which is referenced to a primary reference fuel scale.

Existing Constant Volume Combustion Chamber (CVCC) technology provides a Derived Cetane Number (DCN) result based on a historical averaged correlation equation applied to the ignition delay of the fuel sample.

The new generation AFIDA technology is a significant step forward as it uses the same Primary Reference Fuels as specified in the Cetane Engine method to provide a calibrated cetane number measurement.

Safety:
The AFIDA has multiple integral safety monitoring functions to ensure the system is running safely and accurately.

The AFIDA also has safety functions in place to prevent the system from overheating in the event of a power failure.

Standardisation:
Industry stakeholders recognise the advantages of the AFIDA with CEN, ASTM and the Energy Institute forming new working groups to develop test methodology; IP 617 is already published as an approved test method.

Inter-laboratory studies showed outstanding precision and excellent correlation when compared with samples with known Cetane Numbers. The coefficient of determination (R²) is 0.98. An investigation into carryover with 2-EHN Cetane Improver showed no effect.

Operator Safety
– Obstruction override if paddles are placed under any resistant load
– Duplex protective viewing glass
– Automatic high temperature cut out
– Overflow prevention
– Automatic low-level liquid trip
– Abort button for emergency all stop

Ease of Use
– Fully automated paddle movement with motorised raising and lowering
– Easy sample handling without removing the stirrer paddle
– Self-centering collet to ensure concentricity within 1 mm
– Positioning within 6mm from the bottom of the cylinder automatically achieved
– Large LCD touch screen display

Precision and Accuracy
– Non-reflective enhanced LED lighting for improved measurement precision
– Post stirring, intermediate scraping position ensure accurate readings
– Guaranteed paddle rotation speed, regardless of viscosity
– Large viewing window

Enhanced Test Throughout
– 4 independently controlled test stations reduce waiting time
– Rapid bath heat up time

H2S Analysis of Crude Oil

Many crude oils come out of the well with high levels of H2S, but a stabilisation process usually reduces this level so the fuel is safe to handle, store and transport.

The H2S Analyser combined with the VPP offers a fast and robust means of determining H2S levels to ensure efficient treatment of crudes. The instrument provides a cost effective alternative to traditional methods which cannot offer a true indication of H2S, especially at low gas levels.

For further information about H2S Analysis of Crude Oil click here

How does the VPP work?

Gases emitted from the H2S Analyser test vessel are passed through a cooled sorbent cartridge before they are measured by the electrochemical sensor. Hydrogen Sulfide passes through the sorbent cartridge whereas methyl mercaptans, dimethyl sulphide and other volatile chemicals are slowed or trapped by the cartridge to avoid contamination.

Operator safety:
Patented ‘SafeFlash’ fire extinguisher automatically activates in the event of excess flame or fire around test cup
PRT checks, safety dip before starting, over-temperature cut out, gas flame relight, gas shut off and emergency stop
Complies with ISO 2719 annex b

Ease of use:
Single action lifting arm operation
Intuitive user menu with colour touch screen
Fully automatic test procedure, little operator intervention required

Enhanced test throughput:
Unique test profiles to help improve efficiency when testing a large number of samples
Fast warm up and high capacity air cooling minimises cycle time

Precision and accuracy:
Automatic flash point ensures test repeatability
Results are corrected for variations in atmospheric pressure using the integral barometer
Unique alignment design ensures lid and cup locate perfectly
Password protected ‘calibration’ mode allows verification of instrument
SQC enhanced software to ensure precision and accuracy

Supplied with: Cup (fitted), Allen key (0.89 mm), Allen key (1.50 mm), mains cable, quick start guide and USB with the instrument handbook.

NOTE 1): The ‘SafeFlash’ fire extinguisher is a factory fit accessory and complies with ISO 2719. It must be ordered at the time of purchase or the unit must be returned to a service centre for installation. Comprises extinguisher, manifold assembly, regulator, fire sensor and remote operating button.

Sample viscosity:
The AvCount Lite can analyse samples with kinematic viscosities of up to 64 mm2/s. When used in conjunction with the optional Sample Delivery System, the viscosity range is extended up to 200 mm/s.

Precision and accuracy:
AvCount Lite is fitted with a precision dual piston pump. When measuring samples from a bottle, the pump draws an aliqot of sample through the measurement cell at a consistent flow rate. When connected to a pressurised line, the pump provides accurate metering and control.

Protrend Software:
Optional Protrend Software SA1810-0 can be purchased to control an AvCount Lite from a personal computer or laptop. Local custom test methods can be created, tests run and data downloaded. Protrend supports multiple AvCount Lite units, synchronising the sampling and measurement to allow trend analysis.

Calibration and verification:
AvCount Lite utilises 16 point calibration. Calibration can be carried out either using NIST traceable standard solutions or by interfacing with a primary calibrated ‘Master’ AvCount Lite. Calibration can be carried out at a user site or at our authorised regional laboratories. Seta authorised training is required to perform a calibration. Verification can be performed using AvCount Verification Material.