ESA ESTRO - E7014P rev. 02 - 03/05/17
www.esapyronics.com
4
CHARACTERISTICS
INPUTS AND OUTPUTS:
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¾Voltage to the flame detection probe: max 300 Vac
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¾Minimum ionization current: 2,4 µA ± 0,3 µA
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¾Current limits to the probe: 1 mA
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¾Flame signal display: 0 ÷ 90 µA
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¾Detection probe type: electrode or scanner ESA UV-2
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¾Probe line length to electrode or UV-2 detection: < 30 m
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¾Insulation between the probe conductors: > 50 MΩ (cables with double insulation or double protection)
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¾HV
cable length from ignition transformer: maximum 2 m
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¾Distance between ignition electrode and burner mass: 3 mm ± 0,5
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¾Digital input voltage: the same as the supply voltage
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¾Digital input absorption: max 5mA
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¾Filter for digital input: RC 100 Ω - 0,47 µF - 250 Vac
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¾Output voltage: the same as the supply voltage
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¾Maximum current per single output: 1,5 A (2 A for ignition transformer)
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¾Total maximum current for all outputs: 3.15A per 10 second / minute
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¾Output protection fuse: 3.15A rapid (*) replaceable
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¾Internal relay protection fuse: 4 A not replaceable
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¾Instrument protection fuse: 1 A not replaceable
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¾Minimum voltage supply to maintain output: 70Vac (version 115Vac) and
140Vac (version 230Vac)
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¾EXP-2, EXP-4 and EXP5 expansion card input voltage: 24 Vac/Vdc, 115 Vac, 230 Vac
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¾EXP-2, EXP-4 e EXP5 expansion card input absorption: max 5mA
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¾EXP-2, EXP-4 e EXP5 expansion card output voltage: the same as the supply voltage
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¾EXP-2, EXP-4 e EXP5 expansion card output maximum current: 2A (not protected by internal fuse)
(*) On request it is possible to implement a fast fuse 4A.
PARAMETERS:
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¾Purging
or waiting time before ignition: 0 ÷ 99 sec or 2 ÷ 20 min
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¾1st gas stage safety time*: 1 ÷ 25 sec
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¾Regulation delay time or 2nd gas stage safety time*: 0 ÷ 25 sec
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¾Reaction time*: 1 ÷ 20 sec
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¾Shut off purging or waiting time: 0 ÷ 99 sec or 2 ÷ 4 min
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¾Accepted remote unlocks: max 5 in 15 minutes
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¾Flame sensor check on permanent operation: in 1 hour
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¾Auto shut down for test with non permanent operation: in 24 hours
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¾Behaviour at flame loss: configurable
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¾1st gas stage burner functioning: configurable
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¾Air valve functioning: configurable
* These parameters must be set according to the norm that is applicable at the time of installation.
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