Technical information

IFD 244 · Edition 03.08
28
Technical data9
Mains voltage for grounded and ungrounded mains:
120 V AC, -15/+10%, 50/60 Hz,
230 V AC, -15/+10%, 50/60 Hz.
Safety time on start-up tSA: 3, 5 or 10 s.
Safety time during operation tSB: < 1 s, < 2 s.
Ignition time tZ: approx. 2, 3 or 6 s.
Power consumption:
IFD 244: approx. 9 VA,
IFD 244..I: approx. 9 VA + 25 VA during ignition.
Valve connections: 1.
Output voltage for valves and ignition transformer = mains
voltage.
Contact rating:
Ignition output: max. 2 A, cos ϕ = 0.2,
Valve output: max. 1 A, cos ϕ = 1,
Signalling contacts: max. 2 A, 253 V AC,
Max. number of operating cycles: 250,000.
Max. number of operating cycles:
Reset button: 1000,
Mains button: 1000.
Signal inputs:
Input voltage 120 V AC 230 V AC
Signal “1” 80 – 122.5 V 160 – 253 V
Signal “0” 0 – 20 V 0 – 40 V
Frequency 50/60 Hz
Input current signal inputs: Signal “1”: typ. 2 mA.
Flame control:
Sensor voltage: approx. 230 V AC,
Sensor current: > 2 µA,
Max. sensor current: ionisation < 25 μA.
Length of sensor cable:
max. 75 m.
Ignition cable:
IFD 244: max. 5 m, recommended < 1 m (with TZI/TGI),
IFD 244..I: max. 1 m, recommended < 0.7 m.
IFD 244..I: Ignition voltage: 22 kVpp,
Ignition current 25 mA,
Spark gap: 2 mm, max. 5 mm.
Fuse in unit: F1: T 3.15A H 250 V pursuant to IEC 127-2/5.
Ambient temperature: -20 to +60°C (-4 to +140°F),
Relative humidity: no condensation permitted.
Enclosure: IP 54 pursuant to IEC 529.
Overvoltage category III pursuant to EN 60730.
Cable gland: M16.
Installation position: any.
Weight:
IFD 244: 610 g,
IFD 244..I: 770 g.