Support · SUPPORT
SFD-300 single channel alarm controller
Screen display is 0, the host machine is not zero?

Adjust the menu of 4mA output calibration,, so that the current between out_I+and out_I-. is 4mA

Boot time display "error detector", and can not enter the display interface?

Check detector wiring, whether it is connected to the wrong line, or measuring the detector voltage "24V"  between and"GND"   is 24V.

The site has no gas leakage, but the display has a reading and is not zero?

Enter the "calibration",then"zero calibration >" click "zero calibration", and later on  "calibration" , enter the password "3003" can be preserved

    7/FL north block Jinke Building ,Qiong Yu Road No. 8th ,central of Hi-Tech Industrial Park District
    0086-755-2673 4055 / 26738439 / 26738321
    0086-755-2673 4003
  • ISO9001:2008 international standard certification enterprise ,member of unit of
    Guangdong provincial safety production supervision and Management Association

  •  Shenzhen suofuda Electronics Co., Ltd.