LIYU PZR-KV-1 Series High Speed
. LIYU-PZR-KV-1-Series Manual
www.liyu-dms.com
- 63 -
The calibration of its reference pressure has already been completed when ex-factory, i.e. standard
atmospheric pressure is set as the datum zero. Normally, calibration is not required.
When reference pressure changes due to some unpredictable factors, pressure calibration is required.
Otherwise, the displayed Negative pressure would deviate from actual pressure.
Calibrating method: 1. Disassemble the air tube behind the pressure gauge,
2.
Energize the pressure gauge, and some value will be shown on its screen.
3.
Press both
▲
and
▼
buttons for over 2 seconds at the same time, and the
main display will show the value 0.0.
Calibration of reference pressure has been completed.
( B) Working mode
The negative pressure gauge always display “
RUN Mode”
, while “
Menu Setting Mode” is used
for basic setting, and “
PRO Mode”
is used for advanced functionalities, .
Under “
RUN Mode”
, reference values can be adjusted, locked and so on. Under “
Menu Setting
Mode”
, basic settings, such as setting the output mode and switching between NO and NC, can
be operated. Under “
PRO Mode”
, advanced functionalities like Hysteresis adjustment and copy
function, can be set.
During the normal operation of “
RUN Mode”
, by pressing “
MODE”
button, the mode
switching button, for 2 seconds, it will switch to “
Menu Setting Mode”,
while by pressing
“
MODE”
button for 5 seconds, it will switch to “
PRO Mode”.
( C) Output mode and setting
As for comparison output 1 and comparison output 2, output mode can be chosen among
EASY Mode
as well as
Hysteresis Mode
and
Window Comparator Mode.
1.
Long press “
MODE
” button for 2 seconds to enter Menu Setting, and the main display shows
EASY while the minor screen shows OUT1.
2.
Through pressing
▲
and
▼
button, to set OUT1 output mode and select EASY mode,
Hysteresis mode or Window Comparator mode. It shows EASY for the first energizing.
The picture below shows the display interface of the negative pressure
gauge.
3.
Press “MODE” button to enter OUT2 setting, the main display shows OFF for the first
energizing. Through pressing
▲
and
▼
button, to set OUT2 output mode. The picture below
demonstrates display interface of the negative pressure gauge.
( EASY Mode) (Hysteresis Mode) (Window Comparator Mode
)
