Power supply

2 30 V  +10/-15 %  47-63 Hz 120 V  +10/-15 %  47-63 Hz (on request)

Maximum backup-fuse

10 A slow-blow

 

To be used only in a grounded power line network!

Power consumption max.

30 VA

Switching threshold of ionisation current

1 µ A

Digital signal inputs

Max. line length 10 m (33 ft)

 Max. line length 20 m (66 ft) for the following signals:

 Firing rate+ / firing rate-

 Boiler safety interlock chain (SIC)

Burner ON

Reset 

Alarm

Fuel selection DFM

 

Digital outputs

3 fuel valves max. 1 A cos ? 0,4

VL fan max. 2 A cos ? 0,4 

oil pump max. 2 A cos ? 0,4

ignition transformer max. 2 A cos ? 0,2

 alarm output max. 1 A cos ? 0,3

 

Resolution

999 digit,  bit 10

Number of curve sets

BT320/33x: 1 curve set (oil or gas) BT34x: 2 curve sets (oil/gas switchable; DFM300 or LCM100 required)

Number of programs

unlimited (EEPROM)

Field bus-coupling (optional)

PROFIBUS DP

Modbus TCP

PROFINET

LEM100 or LCM100 always required

Housing

Polycarbonate + ABS

Dimensions (HxWxD)

200x11 5x61 mm (7.87x4.53x2.4" in)

Weight

1 ,0 kg (2.20 lb)

Flammability

UL-94 V0