... Double-channels(multi-channels), sub-rate injection. 2. Four kinds of injection modes: Rate mode, Time mode, Body Weight mode, link ... consumptionSingle-channel works for continuous 5 hours at the rate of 25ml/h after fully recharged; double-channels works for ... Power supply, communication error, link abnormal, pump stuck, reading error of the parameters, etc.Mode selection1. Rate mode 2. Time mode ...