Instruction Manual - Sierra Instruments

Sierra Instruments Instruction ManualSmartTrak ® 100 SeriesTo perform this zero procedure, you must make sure that the actual flow is zero.Attempting to zero the meter or controller while there is a flow condition will causean offset. Note: This MUST be done using the appropriate gas as selected.Caution: do not perform auto zero when there is no gas present in the meter and orthe gas is FLOWING.Default zero:This will set the zero value back to factory conditions. Use this in order to recoverfrom a mistaken entry.Span:This allows the user to enter an offset to the span to adjust the meter outputs tomatch another device or field conditions. The span is a MULITPLIER and willmultiply all outputs by the entered amount.64