4
GENERAL INSTRUCTIONS
The Manometer measures “Gauge Pressure.” This combines Differential
pressure with a PSI measurement as referenced to ambient pressure.
When the manometer is first powered on, the entire LCD display flashes for
approximately 3 seconds. The LCD is divided into two distinct sections: One
large (Primary) top screen and one smaller section at the bottom-right of the
LCD (Relative Clock). The pressure measurements are constantly updated in
the 2 display areas. Check that the tubing is not leaking or damaged before
use. The start-up mode is programmable. The display will default to the mode
last used and the meter defaults to the setting used during the last operation.
1. Turn the unit on with the
ON/OFF
button.
2. Press the
REC
button once, and the relative clock starts in the lower right
screen. “REC” is displayed in the middle-left of the LCD (Pg 7, Fig B).
The
DIF
button will not operate at this time.
3. Press the
REC
button repeatedly to cycle through MAX (Pg 7, Fig C)
and MIN (Pg 7, Fig D) and back to the current pressure. To exit the
record mode, press and hold the
REC
button for 3 seconds.
4. Press
HOLD
to freeze the pressure reading (Pg 7, Fig E).
Press the
HOLD
button again to release this setting.
5. Press the
DIF
button and “DIF” appears near the top of the LCD and
the display indicates the relative zero. Only the amount of the pressure
change will be indicated (Pg 7, Fig F). Press the
DIF
button again and
the unit returns to the normal mode.
6. Press the
UNIT
button repeatedly to cycle through the units of
measure indicated below the LCD display (Pg 7, Fig G and H)
7. Press the Backlight button and the LCD illuminates for approx.
30 seconds then turns off automatically.
Note...
Differential Pressure is a measure of the difference between two pressures,
for example, use differential pressure sensor to measure
gauge pressure by leaving one process connection open to atmosphere
and connecting the second sensor port to your system.
