Hi Den, to verify the calibrations in the various test modes, you must first access the built-in test menu by executing the following sequence of events, thereby initiating and completing the self-test procedure. Some tests do require a calibrated manometer, a dummy cuff, and/or a rubber inflation bulb. To gain access to the menu:
1. ensure the monitor is plugged into the AC power source.
2. push the "on" button on the form the panel to activate the unit. if the battery is discharged connect the to the AC outlet.
3. set systolic alarm "HI" and "LO" to 240 mmHg and 160 mmHg, respectively.
4. turn the unit OFF by pressing the "OFF" button on the front panel.
5. depress and hold the start/stop button while simultaneously pressing the "ON" button. do not release the start/stop switch until the self-test procedure is completed., which will be indicated in the LCD window.
when the self-test procedure is complete, the unit will engaged in the verification test mode. a different mode is represented by each of the time intervals that are displayed by pressing the INTERVAL UP or DOWN switch. to begin with the first test listed in the test menu, press the interval UP switch on the front panel. as each test is completed, progress thru the menu to subsequent tests by pressing the INTERVAL UP switch.
Good luck :-)
