Keller dv-2 User manual

➀➁
➂
➃
operating manual dv-2
➀ Select-Key
➁ enter-Key
➂ Actual Pressure
➃ Pressure Connection
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Digital manometer

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GENERAL
dV-2 has two operating keys. The left key (Select) serves to select the functions and
the pressure units. The right key (enter) activates the selected function or pressure
unit.
Turn-on: Pressing either key turns the instrument on. When pressing the right key
(enter), the dV-2 immediately indicates the actual pressure.When turning on with the
left key, the instrument first displays the software version (month/year), followed by
the full scale pressure range (in bar). When the instrument is turned on, an arrow is
pointing to the pressure unit in use. If the battery symbol ( ) lights up, the battery must
be replaced. A triangle with an exclamation mark ( ) indicates that the instrument
is in the continuous operation mode (if not, the instrument turns off 15 minutes after
the last key function).
Turn-off: Pressing the right key (enter) turns the instrument off.
FUNCTIONS / UNITS
Max Press Select: An arrow points to ”Max”. The maximum pressure
is displayed for 5 seconds.
Min Press Select 2x: An arrow points to ”Min”.The minimum pressure
is displayed for 5 seconds.
Reset Press Select 3x: An arrow points to ”Reset”. Press enter: The
max. and min. values are set to the actual pressure.
Mano Press Select 4x:. An arrow points to ”Mano”. Press enter:
Set ”Zero” is displayed. The other programming functions are
subsequently called up by pressing the Select-key.
SET Zero Pressing the enter-key sets the actual value to zero
(also see Ranges/Calibration on page 3).
resET Zero Pressing the enter-key sets the zero back to the factory setting.
ON or OFF
The display shows ON, if the automatic turn-off function (15 min.)
is activated, OFF if the instrument is in the continuous mode.
Pressing the enter-key switches between ON and OFF.
(Units) An arrow points to the pressure unit bar. Pressing Select leads
to the next units (mbar, kPa, MPa or PSI). Pressing enter
activates the indicated unit. Now, the pressure is displayed in
this unit.

Operating Manual dV-2 - 3 -
NOTES
1) The functions and units can also be called up by keeping the Select-key de-
pressed. Releasing the key enables the displayed function or unit to be activated
with the enter-key.
2) If the selected function or unit is not activated within 5 seconds with the enter-
key, the dV-2 returns to the measuring mode without changing any settings.
3) Turning the dV-2 on and off (or a battery change) does not influence any of the
previous settings.
4) If a pressure can not be represented on the display, UFL (underflow) or OFL
(overflow) appears on the display.
5) If the actual pressure goes beyond the measuring range of the instrument, the
last valid pressure value starts flashing on the display.
INSTALLATION
Screw the dV-2 into the pressure port and tighten using the hexagon of the transdu-
cer (pressure connection). If necessary, adjust the manometer housing.
The instrument may only be installed and operated by authorized qualified personnel.
BATTERY CHANGE
Carefully pull forward the frontsided cover by hand. Pull the battery out of the battery
holder and insert a new one (type CR 2032 Lithium 3,0 V). Snap the cover back into
its place.
RANGES / CALIBRATION
The factory setting of the zero for the ranges ≤31 bar absolute is at 0 bar absolute.
For sealed gauge pressure measurements, activate SET Zero at ambient pressure.
Instruments with ranges >31 bar are calibrated in a sealed gauge mode at 1 bar
absolute.

Declaration of Conformity
(will follow shortly)
KELLER AG für Druckmesstechnik
St. Gallerstrasse 119 • CH-8404 Winterthur
www.keller-druck.com Tel. +41 (0)52 - 235 25 25 • Fax +41 (0)52 - 235 25 00