GE Druck DPI 705 Serie Manual De Usuario página 8

Batteries are low, replace
observing polarity shown on case
Displayed reading - maximum value
Displayed reading - minimum value
Displayed reading - leakage (per
minute)
Switch Tare on or off (changes the
display reading to zero)
Switch filter
on or off
View maximum,
minimum or perform leak
test (max/min is reset at
switch on)
Operation
TIME OUT
If a key is not pressed within 10 minutes then the instrument times out and switches
off. To disable this automatic time out, hold the LEAK key when switching on the pressure
indicator.
LEAK TEST
To perform a leak test, press the LEAK key 3 times. The
display with the number 60. To start the leak test press the LEAK key again. The
instrument counts down 60 seconds displaying the leakage at the end of the 60 second
period. Press the LEAK key at any time during the leak test to quit and return to normal
measurement.
ZERO
A zero should be performed on gauge and differential instruments before measuring
pressure. To perform a zero: Open all pressure ports to atmospheric pressure. Press
the and TARE keys together, the display briefly shows
calculates a new zero.
Note: A zero can only be performed on absolute pressure indicators if a vacuum
is first applied to the pressure port.
Alarm
A single alarm can be set to operate when the displayed pressure value rises above the
alarm setting. The alarm causes the display to flash and a beeper to sound for one
minute. Pressing TARE and UNITS keys together displays the alarm value, pressing the
FILTER key increases the alarm value, pressing the UNITS key decreases the alarm
value. When the display shows the required alarm value, press the TARE key to set the
alarm.
K0214 Issue No. 5
Display Symbols
TARE
(flashing)
2
Filter applied
(10 reading rolling average)
Tare applied
A
Alarm - pressure value
more than alarm setting
Leak test in progress
(count down)
Change units (1 of 16
pressure units, °C or °F)
Switch
on or off
symbol flashes on the
ZErO and the instrument