Motorized sample-draw pump NOTE The maximum amount of tubing that can be used with the motorized sample-draw pump is 50 feet. To ensure accurate readings while using the continuous sample pump, it is necessary to allow the pump to draw the sample for one second for everyone foot of sampling hose plus an additional 45 seconds or until readings stabilize. For example, with 10 feet of tubing, it will be necessary to allow a minimum of 55 seconds for the sample to be drawn into the sensor chamber and for the readings to stabilize. IQ Force instruments are designed to automatically recognize the pump whenever it is attached to the instrument. If the pump is attached when the IQ Force is turned off, the instrument will automatically initiate the pump start up sequence when the instrument is turned on. If the pump is attached while the instrument is running, the IQ Force will automatically initiate the pump test sequence before returning to the current gas readings screen.