Chapter 1, Basic Operation Operation Manual1-8 GEMINI Twin-Port Samplerthe total flow for four tubes may be up to 1000 ml/min.,with a maximum of 500 ml/min. through each GEMINISampler if the pump flow rate is adjusted nearer to 1.7LPM. Keep in mind that this additional load will likelyshorten the expected running time of the sampling pump.5. While rotameters or other devices may be used for roughsetting of flows, their inherent pressure drop adds to thetube load. Therefore, use only a soap film device, the DigiCal5 Primary Calibrator (Part No. 655101) for final flowcalibration. Always have the actual tube or equivalent loadin place during flow calibration.Remote SamplingRemote sampling can be accomplished by connecting a remotesampling line between the pump and the Sampler. The samplingline should have an inside diameter of 1/8-inch or larger to preventloading the pump.