www.gastron.com04_05Contents7.2. CALIBRATION MODE·········································································· 217.2.1. Zero Calibration········································································ 217.2.2. Span Calibration ······································································· 227.3. ALARM Mode ················································································ 238. Troubleshooting ··················································································· 248.1. Fault List ····················································································· 248.2. Recovery List ················································································ 249. Drawings and Dimensions ········································································· 269.1. Standard Type··············································································· 269.2. Warning light GTL-100········································································ 279.3. When Connecting Warning Light ······························································· 2810. Precautions before Installation ····································································· 2910.1. Selecting a Place for Installation (Occupation Safety and Health Act Data)·························· 2910.2. Selecting a Site for Installation (High-Pressure Gas Safety Control Act Data)························ 2910.3. Precautions during Installation ································································· 2911. Revision History ··················································································· 31`