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ABSSL (Automated BOCLE System Scuffing Load)
/ Specification
On this page: Temperature Control | Conditioned Air Flow Control | Motor Speed Control | Test Cycle Control | Services | Standards Compliance | Physical dimensions
Temperature Control
Temperature measurement is by a single DIN 43760 Class A platinum resistance sensor (Pt100). Heating/cooling is provided by a sealed, solid-state thermoelectric heat/cool element (Peltier element). Temperature control is by a heat/cool PID algorithm built in to the microprocessor system controller. The sensor can be calibrated by the user via the built in calibration routine in the instrument software.
Ambient temperature limits
Fuel temperature control
+5.0 to +35.0°C
25.0 ±1.0 max, ±0.1°C typical
Conditioned Air Flow Control
Conditioned air temperature and relative humidity are measured with a factory calibrated combined RH and temperature probe. Recalibration (if necessary) is catered for by a low-cost exchange of the probe for a newly calibrated unit. Dry air is supplied from a compressed air cylinder and part of the flow is humidified in a water column. All flow rate adjustment is by two precision flow controllers which continuously adjust wet and dry air flow rates to give the correct humidity and overall flow rate. A PID algorithm built in to the microprocessor system controller drives the flow controllers.
Flow rate
RH
Temperature
3.8 ±0.1 litres/min
10.0 ±0.2% indicated
25.0 ±1.0 max, ±0.1°C typical
Motor Speed Control
Motor speed is measured by a 1000 pulse/rev encoder on the motor shaft. Control is by a PID algorithm built in to the microprocessor system controller, referenced to the microprocessor system clock.
Motor speed
525.0 ±0.1 rpm
Test Cycle Control
The complete test cycle is controlled by a built in microprocessor control system. The control system stabilises the fuel bath temperature, conditions the fuel for the required time then applies the load, times the test duration and removes the load at the end of the test. No operator intervention is required other than to fit the test specimens and fill the fuel reservoir with test fuel. A single button press starts the test cycle. Fuel conditioning and test times are measured by reference to the microprocessor system clock.
Test Duration
30 Seconds , ±0.1 second - Breaking
60 Seconds , ±0.1 second - At test duration
Services
Electrical
Compressed air
Air consumption
Water
115 / 230V AC, 50/60 Hz, 500VA
4 standard litres/min compressed air at 1 to 2 bar (100 - 200 kPa, 15
- 30
psi) inlet pressure. Air quality must meet requirements stated in
ASTM
D-6078 (British Oxygen Corporation BTCA 178 or equivalent)
less than 10 litres per test.
Air conditioning system requires 500ml de-ionised water fill after
approximately
1200 test cycles
Standards Compliance
- Meets EU directive 89/336/EEC (electromagnetic compatibility) to standards EN50081-1 (radiated emissions) and EN50082-1 (interference immunity).
- Meets EU directive 72/23/EWG (low voltage regulations) to standards EN61010-1 and EN61010-2-010.
- CE Marked.
Physical dimensions
Width
550mm
Depth
560mm
Height
375mm
Weight
20kg
