Shanghai Zhenka Industries Co.,ltd               
首页 企业简介 产品中心 技术资料 说明书下载 工程案例 联系方式
低氮燃烧机
利雅路
工业烧嘴
燃烧机配件
定型机专用
   锅炉/烘箱电控箱  (9)
   程控器  (66)
   温控仪/比调仪  (2)
   燃气电磁阀  (69)
   风门执行器  (27)
   点火变压器  (13)
   火焰控测器  (14)
   油泵/油嘴  (69)
   压力开关  (16)
   燃气减压阀/过滤器  (55)
   燃气检漏装置  (4)

   咨询热线
 售前报价
   杨先生 13402030803
   电  话:021-51860685
 
百得利雅路燃烧器739582873
外贸部
  电  话:13585757521
百得利雅路燃烧器
售后服务
   卜先生 13611667605
 
   传  真:021-51861217
   E-mail:zksy88@163.com
   地  址:颛兴路358弄

 公司公众号:k51860685

 

 

 

 

 

 

西门子LDU11.523A27燃气检漏控制器
 
LDU11燃气检漏控制器

品牌:SIEMENS(西门子)

产地:德国

 产品介绍
The LDU11... control detects leakage of the shut-off valves on gas trains with two safety shutoff valves. During each burner cycle, the LDU control unit automatically sequences, and if a leak is detected, initiates a lockout and prevents the burner from starting up.
  • Performs leak test of the gas shut-off valves before start-up and/or immediately after burner shut-down
  • No inlet gas pressure limitations
  • Easy-to-read dial indicates progress of test program
  • Ability to eliminate or leak test the vent valve
  • Cost effective control improves system safety
  • Globally Approved ?cULus, FM, CE

The LDU11 (or control unit) is used in a gas-fired combustion system with or without a vent valve in the gas train.

Installed with one or two pressure switches mounted between the gas valves, the LDU automatically initiates gas valve proving either

  • prior to burner start-up
  • immediately after the controlled shutdown, or
  • both prior to burner start-up and immediately after shutdown

The valve leak test is completed in two stages:

  • First test phase Test1, evacuates the pressure between the gas valves to test the upstream gas shutoff valve. The pipe between the gas valves is monitored by a leak detect pressure switch for no increase in pressure.
  • Second test phase Test2, pressurizes the area between the gas valves to test the downstream safety shutoff valve. The pipe between the gas valves is monitored by the leak detect pressure switch for no decrease in pressure.

If the leak detect switch signals excessive gas pressure increase during the first test phase Test1, or decrease during the second test phase Test2, the LDU control will lockout and prevent burner start-up. The indicator dial on the front of the unit indicates the progress of the leak test. When a fault occurs, the indicator dial stops at the time of lockout, and indicates which of the valves is leaking. In the event of a lockout, the reset button on the front of the control will light orange to indicate a fault.

Pushing the clear window in front of the indicator dial once will reset the LDU control. DO NOT hold in the reset button. The LDU may also be reset with a remote button (see wiring diagram).

 型号表
型号 主电压 Hz
LDU11.523A27 AC220-240V 50...60
LDU11.523A17 AC100-110V 50...60
 技术参数
主要参数
主电压 AC220V -15%...AC240V +10%
AC100V -15%...AC110V +10%
主频率 50Hz ±6%
外部保险丝 10A
功率
-测试 3.5VA
-运行 2.5VA
重量 4 lbs
保护等级 NEMA 1251213
环境条件
运输环境 IEC 60 721-3-2
内部条件 class 2K2
温度范围 -58...+140ºF
机械条件 class 2M2
湿度 <95%
运行环境 IEC 60 721-3-3
内部条件 class 3K5
机械条件 class 3M2
温度范围 -5...+140ºF
湿度 <95%
不得进水
 

_版权所有:上海珍卡实业有限公司 地址:上海市闵行区颛兴路358号(200210)B
电话:+86(021)51860685   传真:+86(021)51861217
沪ICP备16039745号-1  E-mail:

 

沪公网安备 31011202005290号