Pump Operation

NOTE: This function requires zone selection.

 

Initially, the pump will be off.  The pump should remain off while sampling an endothermic generator or any other atmosphere under positive pressure.  The pump should also remain off during calibration.  For proper operation, the flow of gas through the sensors should be between 1.0 and 2.0 SCFH.  If the flow meter on the right of the screen or on the inside of the lid does not indicate sufficient flow, turn the pump on.  When accessed from the main screen, the pump has two possible modes: Automatic and Off.  (NOTE: when the pump is placed in Automatic mode, there is a 2-second delay before the pump is activated.  During this time, the External Instrument Communications status indicator will read “PUMP DELAY.”)