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Diastolic Pressure Pulse Rate Measurement Error: Measure again. Wrap the cuff correctly and keep arm steady during measurement. Air Circuit Abnormality: Check cuff connection. Measure again. Pressure Exceeding 300 mmHg: Turn the unit off to clear, then measure again. Error Determining Measurement Data: Measure again. 9 10 INSTALLING BATTERIES 1. Press down on latch and lift the battery cover to open the battery compartment. 2. Install or replace 4 “AA” sized batteries in the battery compartment