Elektrogas - LD, LDM - Tightness Control Device

-The LD/LDM tightness control device is designed to verify the absence of inadmissible leaks in gas trains composed by automatic shutoff valves. The check can be performed before the ignition of the gas burner or after its stop. This device is used in industrial firing processes and in forced draught burners, when power is higher than 1200 kW, according to EN 746-2 and EN 676.

Elektrogas - LD, LDM - Tightness Control Device
Features

> Microcontroller technology
> Easy-to-see status of the device through high visibility LEDs
> Easy accessible reset button
> Adjustable test time to meet the plant needs

> Adjustable test instant
> Available Ex-proof version with metal enclosure for installation in Zone 2 and 22 (ATEX)
> Available with integrated pressure switches and/or integrated auxiliary valves
> Designed and manufactured according to EN 1643

Technical specifications

> Voltage: 230VAC 50/60Hz,
110-120VAC 50/60Hz,
24V DC

> Voltage tolerance: -15% / +10%
> Power absorption: 10 VA (1W for 24V DC)
Integrated valves 2x21 VA

> Ambient temperature: -15°C / +60°C
> Enclosure: IP54 (LD)
  IP65 (LDM)
> Cable gland: PG9 for cable Ø6 / 8 mm
PG16 for cable Ø10 / 12 mm
ISO 4400 plug PG11 for cable Ø8 / 10 mm (optional)

> Wires cross-section: 2,5 mm2 max
> Fuse(replaceable): 5 A (slow-acting)
> Output signals: 5 A max. resistive
2 A max. inductive

> Reset signal: applying mains voltage
> Test period: 10 s / 90 s adjustable
> Filling/ Discharge time: 3 s
> Max. Working pressure: 500 mbar (50 kPa)
> Connections: Rp 1/4

> Gas type: Non-aggressive gases included in the 1, 2 and 3 families (EN 437)
> Integrated pressure switch: Comply with EN 1854
> Integrated solenoid valves: Comply with a EN 161, class A
> Weight: LD1 450 gr, LDM2 1200 gr, LD3 1600 gr, LDM4 2100 gr

Product DATASHEET - LD, LDM - Tightness Control Device