MD 202 U

⊙ Characteristic

. Adopting double safety circuit so that the system is not to be operated when there is an abnormal signal on the flame detection circuit

. Safety system operates when a fire is not ignited or a fire goes out suddenly

. Removes inflammable gas in the furnace when there is a fire extinction or an operating interruption

. In preparation of fire extinction, manually reset is operated

⊙ Nominal

. Nominal voltage : AC 200~240V 50/60㎐ 1phase

. Ambient temperature : -20℃　～ 60℃

. Ambient air density : 35% ～ 85%

. Power capacity : AC250V 5A

. Power consumption : < MAX 7W , AC 30mA

⊙ Time

. Pre purge time : 15S ± 4S

. Post ignition time : 6S ± 2S

. Safety switch : 3S ± 1S

. Delay in extinction detection : less than 1S

. Post purge (incase of Safety switch ) : 20S ± 5S

⊙ Fire detection (FLAME ROD/UV rectification type)

. Ignition detection current : >DC 2㎂

. Misfiring current : <DC 0.7㎂