Accumate 1100 PCA Pump Exclusive and innovation tubing set protects from free-flow of medication. Maximum bolus doses per 1-4 hours can be limited The pump guarantees flow rate accuracy to be within ±5%. KVO rate or the flow rate for Keep Vein Open can be programmed.   Key pad lock, 3 lock levels. There is a clutch bearing to be prevent the motor from rotating in the reverse direction. The pump gives alarms for warning. For example, in the case of running with the pump door open. If the pressure in the tube is too high, the pump stops running with an alarm. If you need to different setting to medication, can be control to 4 step. The pump features very large LCD with word/ symbol icons for fast visual recognition. Intuitive key pad design makes user feel convenient to operate the pump. It is very simple to install the disposable tubing set on the pump. The user can change the flow rates of Bolus dose and Loading Dose freely and easily. The flow rate ranges from 0.1 to 120.0 ml/h by 0.1 increments for maximum flexibility. The user can change the flow rates of Bolus dose and Loading Dose freely and easily. The pump restarts automatically after solving all errors without additional user's manipulation. Light weight and small size make the pump handy to carry in hospital and home. A patient can infuse a bolus dose by pushing the remote bolus switch when he/she feels a pain.