Buttons Operation

Bower on/off Button

1.Power off status:press this button to turn on the meter.

2.Power on status:

a.press this button to open/close backlight.

b.Press this button over 2 seconds to turn off the meter.

c.Auto-off without operation 15 minutes.

C/F Button

Power on status:

1.press this button to store data( 100 data).

2.press this button over 2 seconds to exit store data.

HOLD Button

Power on status:

1.press this button to hold reading display and another operation

2.press this button over 2 seconds to make reading zero.

UNITS Button

Power on status:

1.press this button to switch pressure unit.

2.press this button over 2 seconds to clear the stored data.

DIF Button

Power on status:

1. press this button to look up stored data.

2.press this button over 2 seconds first time to exit data

3.press this button over 2 seconds twice to enter DIF measuring mode

MAX Button

Power on status:

1.press this button to look down stored data

2.press this button to enter max/min measuring mode.

Over Range

1.When the input pressure above the max range,the contents Err 0 will appear on the display.

2.When the input pressure under the min range,the contents Err I will appear on the display.

Battery Replacement.

When the low power symbol appear on display,it needs replace the new 1.5V battery.