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● The LDU11 is designed for automatic gas valve proving (leakage test)
based on the pressure proving principle.
● It is for use on gas-fired combustion plant with or without vent pipe to
atmosphere
● Standards and certificates
● Remote reset
● The automatic trigger time of the program is optional
● Mains voltage: AC 230V, -15%/+10%
AC 115V，-15%/+10%
● Power consumption : 3.5VA
● Safety class II.
● Degree of protection IP40
● Perm. input current at terminal 1 Max. 5 A
● Environmental conditions Operation DIN EN 60721-3-3
Climatic conditions Class 3K5
Mechanical conditions Class 3M2
Temperature range -20...+60°C
Humidity <95%r.F.
● Weight: about 1000g
● Life cycle: LDU11 has a designed lifetime* of 250,000 burner startup cycles which
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