To adjust the start pressure of the ramp on your Z1™ and Z2™ your ramp time must be set first.  If there is no set ramp time, a Fail 2 message will appear on your LCD display.


To set the ramp time:


1.  With the Z1™ or Z2™ in standby mode, press and hold the UP Arrow Button for approximately 3-5 seconds.  When "0.0" begins to flash, press the UP Arrow Button

     to select the amount of time you would like the ramp feature to be engaged.  It can be set from 5 minutes to 45 minutes, in 5 minute increments.  


2.  When your time is selected, press and hold the Start/Stop Button until you see the word "Accept".  Now the ramp feature is engaged and you can proceed to set 

      the ramp pressure.


To set the ramp pressure:


1. With the Z1 and Z2™ in standby mode, press and hold the Down Arrow Button for approximately 3-5 seconds until the 4.0 (or another pressure reading) begins 

    to flash. 


2. While the start pressure value is flashing, repeatedly press either of the Up/Down buttons to increase or decrease the start pressure (4.0 is the lowest setting).


3. When the desired ramp start pressure is reached, press and hold the Start/Stop Button for approximately 3 seconds (until you see the word Accept) to save your 

    setting. (This setting will be saved even when the Z1 or Z2™ is not powered on). The Z1 or Z2™ unit will then return to the standby mode.


NOTE: To return to standby mode without saving the new setting, press and release the Start/Stop Button momentarily instead of holding it down.