var TAGS=["UNCORRECTED_FLOW_RATE",
"INDICATED_UNCORRECTED_FLOW_RATE",
"INDICATED_UNCORRECTED_TOTAL",
var VALUES=ins.getVariableValues(TAGS);
if (VALUES===null) {return -1;}
var mass_flow_rate_value=VALUES[1].value;
var mass_flow_rate_timestamp=VALUES[1].date;