The service life time of ammonic probes can be prolonged by measures of replacing ammonic compound probes and the filli ng solution to protect the probes.

• 首先要保护电板的引线,必须严格按照使用说明书定期进行认真的保养维护,实施氨气敏复合电极膜及其填充液的更换,保护好电极,可延长其寿命。