UEi Test Instruments AK900SC - Manual (Page 15)

15
For example, if the update time selected is 1SEC, the pressure and
temperature displays are updated every second. With 5SEC, the
display is updated every 5 seconds. If the update time selected is
HOLD, the temperature and pressure readout are held at the readings
when HOLD was initiated.
In HI and LO pressure recall modes, only 1SEC setting is available.
Regardless of the update period, the bar graph updates automatically 4
times per second. At the moment that the numeric readout is updated,
the bar graph will clear itself. In this way, the bar graph indicates the
current deviation from the displayed numeric reading.
LCD  / 
These keys increase and decrease the contrast of the LCD display
respectively.
MIN / MAX CLR
This key clears the memory of the HI and LO pressure recall modes.
Depress this when you wish to begin a session of minimum and
maximum pressure monitoring. Depending on the mode selected,
there may not be any visible effect from this key press.
MODE
This key toggles between the following modes in sequence:
•
Normal Mode*
• HI
Maximum pressure recall mode
• LO
Minimum pressure recall mode
• no temperature display if temperature sensor is not plugged in.