ESTRO-BS-000-05-03-CN-230-000 ESA控制器controller

ESA ESTRO is a microprocessor operated device, designed to control gas and oil fired burners, which are discontinuously operated. This device warrants the safe operation of the combustion unit at one or two stages (pilot/main burners), it controls the air flow rate and allows the detection of flame presence through ionization (electrodes) or UV radiation (UV-scan). ESA ESTRO is equipped for serial communication, allowing a remote burner control and operation. The thermal resistant case of ESA ESTRO allows its installation on burner proximity, provided that the environment temperature remains below 60°C.

¾One or two stage (pilot/main) discontinuous burners. 

¾Flame detection by means of rod, unirod and UV scan (also combined). 

¾Packaged burners managing a complete ignition cycle (blower, air damper, air pressure switch). 

¾Burners with air valve control for furnace purging, burner ignition and thermoregulation (heating/cooling) via external regulation device. 

¾Combustion plant with burner controller via digital signal or ECS serial communication. 

¾Customized burner operation through programmable expansion cards

INPUT AND OUTPUT CONNECTIONS: 

 ¾Flame detection probe voltage: max 300 Vac 

¾Minimum ionization current: 2,4 µA ± 0,3 µA ¾Flame probe current limit: 1 mA

 ¾Flame signal display: 0 ÷ 90 µA 

¾Flame probe type: electrode or UV scan model ESA UV-2 

 ¾Rod or UV scan probe line length: < 30 m 

¾High voltage ignition transformer line length: 2 m max 

¾Insulation among probe conductors: > 50 MΩ (double-insulation or double-protection cables) 

¾Digital input signal voltage: same as supply voltage 

¾Digital input power consumption: max 5mA 

¾Filter for lock/reset input: RC 100 Ω - 0,47 µF - 250 Vac 

 ¾Output signal voltage: same as supply voltage 

¾Current per each output signal: 1.5 A ¾Current per output signals (total): 4 A per 10 sec. / min. 

¾Load protection fuse: 4 A fast 

¾Device protection fuse: 1 A non replaceable 

¾Supply voltage expansion card EXP-2 and EXP-4: 24 Vac, 115 Vac, 230 Vac 

¾Supply voltage expansion card EXP-2 and EXP-4: max 5mA 

¾Power absorption expansion card EXP-2 and EXP-4: same as supply voltage 

¾Output signal voltage expansion card EXP-2 and EXP-4: 4 A (unprotected by inner fuse) PARAMETERS: ¾Pre-purge time: 0 ÷ 255 s 

¾First safety time*: 1 ÷ 25 s 

¾Main burner stabilization time*: 0 ÷ 25 s 

¾Reaction time*: 1 ÷ 20 s 

¾Post-purge time: 0 ÷ 255 s 

¾Accepted unlocking: 5 max in 15 min 

 ¾Auto shutoff (can be inhibited)*: 1 minimum in 24 hours 

¾Action at missing flame signal: programmable 

¾First gas stage actions: programmable 

¾Air valve operation: programmable

 * These parameters must comply to the norms and directives related to the industrial process wherein ESA ESTRO is adopted as a burner control device.