LifeSource UA-787W Instruction Manual page 13

Measurement with the desired systolic pressure:
If your systolic pressure is expected to exceed 230 mmHg follow these steps:
1. Place the cuff on the left arm, unless your physician tells you otherwise.
2. Press and hold the START button until a number 30 to 40 mmHg higher
than your expected systolic pressure appears.
3. Release the START button when the desired number is reached. 280 mmHg
is the highest pressure level the monitor can reach. Measurement will then
begin. Continue to measure your blood pressure as described on Page E-5.
Auto Control Medical (Toll Free): 1-800-461-0991
TAKING yOUR BLOOD PRESSURE
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