On 14th Apr,2017,as a request of a Japan Company(called A company), our engineers came to site to help the installation, commissioning, calibration for them. The gas detectors they bought are YT-95H-HCN-A stationary type and bought YT-1000H-1 single channel controller as well
After detail checking, the onsite installation and using environment problems are as follows:
1. Part of installation site had water vapor and condensation.
2. There was strong magnetic field radiation which would cause misreport.
3. When doing installation, the ground line of the detector can not be co-located with other equipment.
4. The probe were not enough.
5. Part of the probe were installed in an assembly line which is not convenient to observe and maintain.
6. The detectors should be calibrated every 3 month in highly corrosive environment to guarantee the accuracy.
7. During the inspection, we found the temperature and humidity equipment were ineffective, which could not be used for monitoring the site conditions.
8. There had false alarm with hand touch on site.