Enerpac DGR-2 User manual

L4009 Rev. A 01/13
DGR-2
Digital Pressure Gauge
Index:
English . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Français . . . . . . . . . . . . . . . . . . . . . . . . . . 17-31
Deutsch . . . . . . . . . . . . . . . . . . . . . . . . . . 33-47
Italiano . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-63
Español. . . . . . . . . . . . . . . . . . . . . . . . . . . 65-79
Nederlands . . . . . . . . . . . . . . . . . . . . . . . . 81-95
Portuguese . . . . . . . . . . . . . . . . . . . . . . . 97-111
Norwegian . . . . . . . . . . . . . . . . . . . . . . 113-127
Svensk . . . . . . . . . . . . . . . . . . . . . . . . . 129-143
1.0 IMPORTANT RECEIVING
INSTRUCTIONS
Visually inspect all components for shipping
damage. Shipping damage is not covered by
warranty. If shipping damage is found, notify
carrier at once. The carrier is responsible for
all repair and replacement costs resulting
from damage in shipment.
SAFETY FIRST
2.0 SAFETY ISSUES
Read all instructions,
warnings and
cautions carefully.
Follow all safety precautions to avoid
personal injury or property damage during
system operation. Enerpac cannot be
responsible for damage or injury resulting
from unsafe product use, lack of maintenance
or incorrect product and/or system operation.
Contact Enerpac when in doubt as to the
safety precautions and operations. If you
have never been trained on high-pressure
hydraulic safety, consult your distribution or
service center for a free Enerpac Hydraulic
safety course.
Failure to comply with the following cautions
and warnings could cause equipment
damage and personal injury.
A CAUTIONisusedtoindicatecorrectoperating
or maintenance procedures and practices to
prevent damage to, or destruction of
equipment or other property.
A WARNING indicates a potential danger that
requires correct procedures or practices to
avoid personal injury.
A DANGER is only used when your action
or lack of action may cause serious injury or
even death.
WARNING: Wear proper personal
protective gear when operating
hydraulic equipment.
WARNING: Stay clear of loads
supported by hydraulics. A
cylinder, when used as a load
lifting device, should never be used as a load
holding device. After the load has been raised
or lowered, it must always be blocked
mechanically.
WARNING: USE ONLY RIGID
PIECES TO HOLD LOADS.
Carefully select steel or wood
blocks that are capable of supporting the
load. Never use a hydraulic cylinder as a shim
or spacer in any lifting or pressing application.
DANGER: To avoid personal
injury keep hands and feet away
from cylinder and workpiece
during operation.
Instruction Sheet
POWERFUL SOLUTIONS. GLOBAL FORCE.

2
WARNING: Do not exceed
equipment ratings. Never attempt
to lift a load weighing more than the
capacity of the cylinder. Overloading causes
equipment failure and possible personal
injury. The cylinders are designed for a max.
pressure of 10,000 psi [700 bar]. Do not
connect a jack or cylinder to a pump with a
higher pressure rating.
Never set the relief valve to a
higher pressure than the maximum
rated pressure of the pump. Higher
settings may result in equipment damage and/
or personal injury.
WARNING: The system operating
pressure must not exceed the
pressure rating of the lowest rated
component in the system. Install pressure
gauges in the system to monitor operating
pressure. It is your window to what is
happening in the system.
CAUTION: Avoid damaging
hydraulic hose. Avoid sharp
bends and kinks when routing
hydraulic hoses. Using a bent or kinked hose
will cause severe back-pressure. Sharp bends
and kinks will internally damage the hose
leading to premature hose failure.
Do not drop heavy objects on
hose. A sharp impact may
cause internal damage to hose
wire strands. Applying
pressure to a damaged hose may cause it to
rupture.
IMPORTANT: Do not lift hydraulic
equipment by the hoses or swivel
couplers. Use the carrying handle
or other means of safe transport.
CAUTION: Keep hydraulic
equipment away from flames
and heat. Excessive heat will
soften packings and seals, resulting in fluid
leaks. Heat also weakens hose materials and
packings. For optimum performance do not
expose equipment to temperatures of 150 °F
[65 °C] or higher. Protect hoses and cylinders
from weld spatter.
DANGER: Do not handle
pressurized hoses. Escaping oil
under pressure can penetrate the
skin, causing serious injury. If oil is injected
under the skin, see a doctor immediately.
WARNING: Only use hydraulic
cylinders in a coupled system. Never
use a cylinder with unconnected
couplers. If the cylinder becomes extremely
overloaded, components can fail
catastrophically causing severe personal
injury.
®
WARNING: BE SURE SETUP IS
STABLE BEFORE LIFTING LOAD.
Cylinders should be placed on a
flat surface that can support the
load. Where applicable, use a cylinder base
for added stability. Do not weld or otherwise
modify the cylinder to attach a base or other
support.
Avoid situations where loads are
not directly centered on the
cylinder plunger. O-center loads
produce considerable strain on cylinders and
plungers. In addition, the load may slip or fall,
causing potentially dangerous results.
Distribute the load evenly across
the entire saddle surface. Always
use a saddle to protect the plunger.
IMPORTANT: Hydraulic equipment
must only be serviced by a
qualified hydraulic technician. For
repair service, contact the
Authorized ENERPAC Service Center in your
area. To protect your warranty, use only
ENERPAC oil.
WARNING: Immediately replace
worn or damaged parts with
genuine ENERPAC parts. Standard
grade parts will break causing
personal injury and property damage.
ENERPAC parts are designed to fit properly
and withstand high loads.

3
3.0 DESCRIPTION
The Enerpac DGR-2 digital pressure gauge is
designed to monitor system pressures of up
to 20,000 psi [1380 bar]. Standard features
include:
• Displays available in multiple units: psi, bar,
mPa and kg/cm2(user-selectable).
• Zero reset feature ensures that gauge reads
actual system pressure.
• Powered by two 1.5V AA batteries (included).
• IP67 rated case design.
• User-selectable gauge shut-o timer.
• CE and RoHS compliant.
Note: Refer to Section 7.0 of this manual for
detailed product specifications and installa-
tion dimensions.
4.0 INSTALLATION INFORMATION
IMPORTANT: To ensure proper operation and
to help prevent gauge failure, read and under-
stand the following instructions and precau-
tions before installing the gauge.
WARNING: A failure resulting in
personal injury and/or property
damage may be caused by
excessive overpressure, excessive vibration
or pressure pulsation, excessive instrument
temperature, corrosion of the pressure
containing parts, or other misuse. Consult
Enerpac before installing the gauge if there are
any questions or concerns.
Overpressure:
Pressure spikes in excess of the rated pressure
of the gauge may cause irreversible electrical
and/or mechanical damage to the pressure
measuring and containing elements. Fluid
hammer and surges can destroy any pressure
transducer and must always be avoided.
A pressure snubber should be installed to
eliminate the damaging hammer eects. Fluid
hammer occurs when a liquid flow is suddenly
stopped, as with quick closing solenoid valves.
Surges occur when flow is suddenly begun, as
when a pump is turned on at full power or a
valve is quickly opened.
WARNING: Gauge is rated at
20,000 psi [1380 bar] maximum
pressure. Never exceed this
maximum pressure rating.
Pressure Surges:
Surges are particularly damaging to pressure
gauges if the pipe is originally empty. To avoid
pressure surges, fluid lines should remain full
(if possible), pumps should be brought up to
power slowly, and valves opened slowly. To
avoid damage from both fluid hammer and
surges, a surge chamber should be installed.
Symptoms of fluid hammer and surge’s
damaging eects:
• Digital gauge exhibits large zero oset.
• Digital gauge pressure display remains
constant regardless of pressure.
• Error code is displayed on screen.
Cold Temperatures:
Formation of ice in the gauge pressure port
can cause permanent damage to the gauge.
Whenever possible, mount the gauge in the
upright vertical position to help prevent possible
overpressure damage due to freezing.
Note: Inspect the entire hydraulic system for
leaks if it is suspected that water has entered
the system. Make required repairs before
returning system to operation.
Installation Requirements:
A 1-1/16 inch [27mm] hex wrench is required
for tightening the gauge to the hydraulic
connection. Apply Teflon tape or a suitable
sealing compound to the 1/4 inch NPTF threads
of the gauge. Using the wrench, tighten 1 turn
beyond hand-tight or until a leak-proof seal has
been achieved.
1/4" NPTF
Hydraulic Connection
CAUTION: Tightening the gauge by
grasping or putting a tool on the
plastic housing can cause
permanent damage to the gauge.

4
5.0 OPERATING INSTRUCTIONS
Keypad:
①Power On-O / Enter
|
|
②Zero / Up Arrow / Tare ZERO ▴Tare
③Menu Selection / Down / Backlight Arrow MENU ▴
④Key presses are short – less than 0.5 seconds, or long – greater than 0.5 seconds
➟
➠
①
③④
②

5
①
LCD Display and functions:
①5 numerical digits for pressure display.
②20 segment pressure range bar graph – each segment equals 5% of range.
③ Sleep and Backlight Timer symbols.
④Maximum / Minimum Pressure and Tare icons.
⑤5 character alpha-numeric digit display.
⑥4 segment battery life indicator.
⑦Negative pressure indicator.
⑥
⑤④③
⑦
②

6
Note: Key presses designated as short (less
than 0.5 sec) are indicated by “➟
” ICON
Key presses designated as long (greater than
0.5 sec.) are indicated by “
➠
” ICON
Turn the Gauge ON/OFF
Press
|
|
➠
key to turn gauge
ON / OFF. When initially turned ON, the display
will momentarily show all LCD segments lit,
product version and full scale range; the unit will
then proceed automatically to the Measurement
mode.
Zero Function:
Press ZERO
➠
. Upon release, the numeric
display momentarily disappears and “ZERO”
shows in alpha display, then returns to
Measurement mode. The pressure should now
read 0. Zero value is stored in memory.
Note 1: A display message of “RLOCK”
indicates that zero is more than ±5% from
factory calibration. Zeroing is not possible.
Note 2: A message of “ZLOCK” indicates that
zero lock function is activated.

7
Tare Function:
Subtracts current pressure value from value
displayed in Measurement mode.
In Measurement mode, apply desired pressure
and press ZERO ➟
to enable the tare function.
The display will quickly flash “TARE”, then the
“TARE” icon will be displayed and the pressure
reading will blink. The unit should now read0.
Press ZERO ➟
again to disable the tare function.
The display will quickly flash “TOFF”, then the
“TARE” icon will disappear and the pressure
reading will no longer be blinking. The unit will
now return to Measurement mode.
Programming:
To enter Menu mode
1. Press
menu
➠
and release to
proceed to Programming mode.
2. Press ▴, ▾➟
, to scroll through
programmable menu options.
3. When desired option is reached press
|
|
➟ to access that parameter.
4. If at any time you choose to EXIT the
Menu mode (or sub-menu mode) hold
menu
➠
. Your work will not be
saved.
Programmable Parameters:
Units of Measure:
1. In Menu mode, press ▴, ▾➟
, to
scroll to “UNITS”, press
|
|
➟
.
2. Choose engineering units by scrolling
▴, ▾➟ , until desired unit is
displayed, “PSI, BAR, kg/cm, mPa,
customer defined units (CUSTM)”.
3. Press
|
|
➟
to select units and return
to Measurement mode.
Note: Custom units programming, see
page
8.

8
Custom Units of Measure:
Allows a user to define a custom unit of
measure, user must enter the full scale value
of the desired reading, which can be done as
follows.
1. In Menu mode press ▴, ▾➟
,
select
“CUSTM”, press
|
|
➟ .
2. Select decimal point location:
The alphanumeric display shall show
“SELDP”
The first screen to appear will show all
digits lit up as “5” and the rightmost
decimal point will blink (5 5 5 5.5)
unless the custom units feature had
been used previously. If it had been
used, the digits and decimal point
position shall correspond to the last
values set. Use the ▴, ▾➟
keys to move the decimal point to the left
or the right. Once the decimal point is in
the desired position, press
|
|
➟ to
lock it in place. When the key is released
the display reads “DIGIT”.
3. Choose full scale value:
The alpha numeric display shall show
“DIGIT”.
The next screen will continue to show
all digits as “5”, with the leftmost digit
blinking and the decimal point fixed in
the previously chosen position. However,
if the custom units feature has been
used previously, then the digits shall
correspond to the last value. The decimal
point remains at the location chosen in
step 1. Press ▴, ▾➟
to change the
value of the digit between 0-9.
Once the desired value is displayed,
press the
|
|
➟ key to lock it in place.
Now the next digit to the right will begin
blinking. Repeat this procedure for all
5 digits. When
|
|
➟ is pressed and
released with the fifth digit flashing,
the gauge will briefly display “DONE”
then return to Measurement mode and
display “CUSTM” along with the numeric
readings to signify that the feature is use.
The user can optionally exit at any point
before the enter key is pressed with
menu
➠
. If the user exits the menu
by a menu
➠
before completing
step 2 or there is a menu timeout, then
whatever the user entered will be lost.
Note: The bar graph uses the factory default
setting when custom units are used.
Note: The magnitude of the value entered
when using the custom units feature can
significantly increase the noise on the
display, which can aect the zero and tare
functions as well as the stability of the
pressure reading displayed. If required,
consult factory for recommended limitations
on full scale input.

9
Maximum / Minimum:
Displays maximum / minimum pressure values;
this is initiated upon powering the unit or since
the values were cleared.
1. When in Menu mode press ▴, ▾➟
to scroll to ‘Max’ (maximum display); this
is indicated in small font to the left of the
display’s unit of measure.
2. To clear both Min and Max values, press
and hold zero
➠
3. Release of this key will leave you
in Menu mode. Use ▴, ▾➟ to
continue scrolling through the menu
options, OR hold, menu
➠
to return
to Measurement mode.
Note: Clearing Minimum / Maximum values
will result in a blank display except for the
associated Min. / Max. icon and battery
indicator.
Note: The following actions will also clear
min/max values. Power o, zero gauge
function, tare function, field calibration
function, units programming, update rate, or
reset.
Timer:
Controls how long the gauge will remain
powered ON once the Power key
|
|
is
pressed.
1. When in Menu mode press ▴, ▾➟
to scroll until “TIMER” is displayed.
2. Press
|
|
➟ .
3. Then, press
▴, ▾➟
to scroll
through values. “NONE” designates
that the gauge will remain ON until
the power key
|
|
is pressed a second
time. Any other value (1 min [default]
/ 5 min / 20 min), other than “NONE”,
will designate the duration of time this
function will be in eect.
4. Press
|
|
➟ to select desired value;
timer icon will be shown on the display
and the unit will display “DONE” then
return to Measurement mode.
Feature: Timer icon will flash 10 seconds
prior to gauge shut down. While the
gauge is powered on, any key press will
reset the timer.

10
Light:
Determines how long the backlight will remain
ON after any key is pressed in Measurement or
Menu modes (Note: The timer is reset with any
key being pressed.)
1. While in Menu mode, press ▴, ▾➟
until “LIGHT” is displayed.
2. Press
|
|
➟
for timer value to appear;
“ON” refers to the backlight remaining
ON at all times unit is powered ON,
“PRESS” designates that the backlight
is switched on / o by briefly pressing
the backlight menu ➟
whereas, “OFF”
indicates the backlight will never be
illuminated. Selecting time values, “1
MIN” (default), “5 MIN”, “20 MIN”, will
activate the backlight symbol on the LCD
display for the designated minutes.
3. Press
|
|
➟
to select backlight time
(display will briefly show “DONE”) and
return to Measurement mode.
Note: In “PRESS” mode; factory has set 1 hour
timer to save battery.
Feature: Backlight indicator will blink 10
seconds prior to light shut o.
Update:
Utilized to select the rate at which the displayed
pressure value is updated on the screen.
This function is used when rapid changes in
pressure cause “flutter” in the display values;
longer intervals will reduce the update rate and
“average” the readings on such applications.
1. In Menu mode, press ▴, ▾➟
until
“UPDAT” appears.
2. Press
|
|
➟
to select.
3. Press
▴, ▾➟
to select values for
“1 SEC” (default), “500 MSEC”, or “250
MSEC”.
4. Press
|
|
➟
to select value (display
will briefly show “DONE”) and return to
Measurement mode.
Note: Changing value to anything other than
1 sec may cause a slight zero oset, and
it is recommended that the gauge be fully
vented and re-zeroed before taking accurate
readings. Also, battery life will be reduced by
use of an update rate faster than 1 SEC.

11
Z-Lock:
Utilized to prevent inadvertent re-zeroing of
the gauge.
1. In Menu mode, press ▴, ▾➟
until
“ZLOCK” appears.
2. Press
|
|
➟
to select.
3. Press
▴, ▾➟
to select “L ON” or “L
OFF” (default).
4. Press
|
|
➟
to select value (display
will briefly show “DONE”) and return to
Measurement mode.
Note: If Z-Lock is activated, the gauge will
display “ZLOCK” if zero is attempted.
Re-Calibration:
Provides the user the ability to field calibrate
the product. Original factory calibration is
permanently retained in memory and can be
recalled at any time.
1. In Menu mode press ▴, ▾➟ until
“RECAL” appears; proceed to press
|
|
➟
.
2. Display will indicate “FACT” (factory)
“FIELD” or “NEW”. Press ▴, ▾➟
to scroll.
3. Pressing
|
|
➟
while “FACT” (factory)
is displayed will restore values of factory
calibration.
4. Pressing
|
|
➟
when “FIELD” is
displayed will restore values from latest
field calibration.
5. Pressing “Enter” key
|
|
➟
when
“NEW” appears will enter the Recalibrate
mode.
6. When “NEW” is displayed, press
|
|
➟
;
upon release, the display will flash “OK/
APPLY/ REF/ PSI/ THEN/ PRESS/ ENTER/
TO/ START/ OR/ OTHER/ TO/ ABORT”.
Numeric display will read .00000. Vent
sensor to atmospheric pressure, press
|
|
➟
display will show “WAIT” and
count down from 6 seconds then briefly
display CAL then automatically go to next
step.
7. Display flashes “APPLY/ REF/ PSI/
THEN/ PRESS/ ENTER/ TO/ START/
OR/ OTHER/ TO/ ABORT”; apply the full
scale pressure in units of psi indicated in
numeric display to gauge. Press
|
|
➟
display will show “WAIT” and count
down from 6 seconds then briefly display
CAL then automatically go to next step.

12
8. Display flashes “APPLY/ REF/ PSI/
THEN/ PRESS/ ENTER/ TO/ START/ OR/
OTHER/ TO/ ABORT”; apply the pressure
indicated in numeric display to gauge
and press
|
|
➟ display will show
“WAIT” and count down from 6 seconds
then briefly display GOOD then exit into
Measurement mode.
Note: Recalibration is allowed only if test
parameters are within ±7%. If outside this
window, the display will indicate “CAL FAIL /
INPUT PRES TOO LOW (HIGH) / PRESS ENTER
TO RETRY / PRESS OTHER TO ABORT”.
Note: “FIELD” option appears only if gauge
has been successfully field recalibrated.
Graph:
Provides the user the ability to modify pressure
values dictating the minimum / maximum
indications over the 20 segment bar graph.
1. In Menu mode press ▴, ▾➟
,
until “GRAPH” appears; press
|
|
➟ .
2. Display will indicate “CGOFF” (custom
graph o) [default], “CG ON” (custom
graph on), or “NEWCG” (new custom
graph). Press ▴, ▾➟
to scroll.
3. To recall the last custom graph entered
when “CG ON” is displayed press
|
|
➟ . Display will briefly show
“DONE” and return to Measurement
mode.
4. To reset bar graph to full scale range;
when “CGOFF” is displayed press
|
|
➟ . Display will briefly show
“DONE”, and return to Measurement
mode.
5. To enter a new custom bar graph; when
“NEWCG” is displayed press
|
|
➟ .

13
6. To program minimum graph percentage,
the display will indicate 0 0 with the right
digit flashing, the bottom most segment of
the bar graph will flash, and the display will
read “PCTFS” (percent full scale). Press ▴
, ▾➟ to scroll to a number 0-9. Press
|
|
➟ to select that number. The left digit
will now begin to flash. Press ▴, ▾➟
to scroll to a number 0-9. Press
|
|
➟
to select that number. The 2 digit number
entered represents the percentage of full
scale to be used as the low end of the graph
(0-99%).
7. To program maximum percentage of
full scale the display will indicate 1 0 0
with the right digit flashing, the upper
most segment of the graph will flash,
and the display will read PCTFS (percent
full scale). Press ▴, ▾➟
to scroll to
a number 0-9. Press
|
|
➟ to select
that number. The left 2 digits will now
begin to flash. Press ▴, ▾➟
to
scroll to a number 0-10. Press
|
|
➟
to select that number. The number
entered represents the percentage of
full scale to be used as the high end of
the graph. Note: 100 is the highest and
only possible 3 digit number. If the low
number is equal to or larger than the
high number, the unit will flash “REJCT”
and it will exit back into the “GRAPH”
sub-menu.
Note: A display message “ULOCK” indicates
that custom units are being used and bar
graph minimum and maximum are set to the
factory defaults.
Reset:
Returns the product to the factory default values.
Preserves field calibration. Factory calibration
can be restored in the “RECAL” menu.
In Menu mode press ▴, ▾➟
until
“RESET” appears on display’s lower line.
Press
|
|
➟ .
Factory defaults pertain to units, timer,
backlight, update rate, zero lock.
Display will indicate “DONE” then gauge
will switch to “OFF” condition.

14
6.0 BATTERY REPLACEMENT
The gauge is powered by two 1.5 volt type
AA alkaline batteries. In normal service, the
batteries will last approximately 2000 hours
before requiring replacement. Actual battery life
will vary depending on gauge usage, ambient
temperature and other factors.
Replace the batteries as described in the
following procedure:
1. Slide the protective boot (not shown) o
of the gauge housing.
2. Grip knurled back cover and rotate
counter-clockwise until the ‘unlock’ icon
is in alignment with the arrow – this is on
the housing at the base of the pressure
connection (see view A).
3. Remove cover by pulling straight back
and replace AA alkaline batteries
accordingly; ensure that the batteries
are in the proper polarity position (see
view B).
4. For reattachment of cover, align the
‘unlock’ icon with the arrow, push cover
straight in then turn clockwise until the
arrow is in alignment with the ‘Lock’ icon
(see view C).
5. Reinstall the protective boot (not shown)
on the gauge housing.
Note: Reinstallation of the back cover may
cause the gauge to read negative pressure.
This is a temporary issue as the internal case
pressure will be relieved by the case vent and
equalize with atmospheric pressure (90% of
the oset will equalize within 1 minute, the
remaining 10% may take up to 5 minutes).
B
A
C

15
7.0 TECHNICAL DATA - MODEL DGR-2 DIGITAL PRESSURE GAUGE
Dimensions:
Specifications:
Environmental Specifications
Acceptable Range
Ambient Operating
Temperature
4ºF to 140ºF
[-20ºC to 60ºC]
Hydraulic Oil
Temperature
4ºF to 176ºF
[-20ºC to 80ºC]
Storage Temperature
(batteries installed)
4ºF to 140ºF
[-20ºC to 60ºC]
Storage Temperature
(batteries removed)
4ºF to 176ºF
[-20ºC to 80ºC]
Temperature Coecient 0.04%/ºF [-20ºC to 180ºC]
zero and span, reference temp. 70ºF
Maximum Pressure Rating Accuracy Update
Rate
Power
Req’d
Weight Hydraulic
Connection
Enclosure
Rating
psi bar mPa kg/cm2
0.25%
250ms
500ms
1s
(user-
selectable)
3 VDC
(two AA
alkaline
batteries)
lbs kg
1/4 inch NPTF
Male IP67
20000 1380 140 1400
0.5 0,23
WARNING: Never exceed
maximum pressure rating.
Range & Interval Information
Unit of
Measure
Selected
Range Interval
psi 0-20000 1
bar 0-1380 0.1
mPa 0-140 0.01
kg/cm20-1400 0.1
Agency Approvals
CE EN 61326 (1998)
CE EN 61326 Annex A (heavy industrial)
UL/cUL-61010-1 (pending)
RoHS compliant
This device conforms with the
requirements for CE Marking.
2.64 inch
67 mm
1.99 inch
50,5 mm
Ø 3.08 inch
78,13 mm 2.02 inch 51,3 mm
1.063 inch
27 mm Hex
1/4 inch NPTF Male
0.69 inch
17,5 mm
Replacement
Protective Boot
Order Enerpac
Part No. DGB-2
◃

16

17
DGR-2
Manomètre numérique
Fiche d’instructions
POWERFUL SOLUTIONS. GLOBAL FORCE.
L4009 Rev. A 01/13
1.0 INSTRUCTIONS IMPORTANTES
RELATIVES À LA RÉCEPTION
Inspecter tous les composants pour vous
assurer qu’ils n’ont subi aucun dommage
en cours d’expédition. Les dommages
subis en cours de transports ne sont pas
couverts par la garantie. S’ils sont abîmés,
aviser immédiatement le transporteur, qui
est responsable des frais de réparation et
de remplacement résultant de dommages en
cours de transport.
LA SÉCURITÉ AVANT TOUT !
2.0 SÉCURITÉ
Lire attentivement
toutes les instructions et
mises en garde et tous
les avertissements. Suivre toutes les
précautions pour éviter d’encourir des
blessures personnelles ou de provoquer des
dégâts matériels durant le fonctionnement du
système. Enerpac ne peut pas être tenue
responsable de dommages ou blessures
résultant de l’utilisation risquée du produit,
d’un mauvais entretien ou d’une application
incorrecte du produit et du système. En cas
de doute sur les précautions ou les
applications, contacter Enerpac.
Respecter les mises en garde et
avertissements suivants sous peine de
provoquer des dégâts matériels et des
blessures corporelles.
Une mise en garde ATTENTION sert à
indiquer des procédures d’utilisation et de
maintenance correctes qui visent à empêcher
l’endommagement voire la destruction du
matériel ou d’autres dégâts.
Un AVERTISSEMENT indique un danger
potentiel qui exige la prise de mesures
particulières visant à écarter tout risque de
blessure.
La mention DANGER n’est utilisée que
lorsqu’une action ou un acte de négligence
risque de causer des blessures graves, voire
mortelles.
AVERTISSEMENT : Porter un
équipement de protection
personnelle adéquat pour utiliser
un appareil hydraulique.
AVERTISSEMENT : Rester à
l’écart de charges soutenues par
un mécanisme hydraulique. Un
vérin, lorsqu’il est utilisé comme monte-
charge, ne doit jamais servir de support de
charge. Après avoir monté ou abaissé la
charge, elle doit être bloquée par un moyen
mécanique.
AVERTISSEMENT : UTILISER
SEULEMENT DES PIÈCES
RIGIDES POUR SOUTENIR LES
CHARGES. Sélectionner avec précaution des
blocs d’acier ou de bois capables de
supporter la charge. Ne jamais utiliser un vérin
hydraulique comme cale ou intercalaire
d’appui pour les applications de levage ou de
pressage.
DANGER : Pour écarter tout
risque de blessure personnelle,
maintenir les mains et les pieds
à l’écart du vérin et de la pièce à usiner durant
l’utilisation.
AVERTISSEMENT : Ne pas
dépasser les valeurs nominales du
matériel. Ne jamais essayer de
soulever une charge d’un poids supérieur à la
capacité du vérin. Une surcharge entraînera la
panne du matériel et risque de provoquer des
blessures corporelles. Les vérins sont conçus
pour une pression maximale de 700 bar. Ne
pas connecter de cric ou de vérin à une
pompe affichant une pression nominale
supérieure.

18
Ne jamais régler la soupape de
retour (uniquement les pompes
équipées de soupape de retour
réglable par l’utilisateur) à une
pression plus élevée que la pression nominale
maximum de la pompe. Un réglage plus élevé
peut entraîner des dommages à l’équipement
ou des blessures corporelles.
WARNING : La pression de
fonctionnement du système ne doit
pas dépasser la pression nominale
du composant du système achant la plus
petite valeur. Installer des manomètres dans le
système pour surveiller la pression de
fonctionnement. Ils permettent de vérifier ce
qui se passe dans le système.
ATTENTION : Éviter d’endommager
les tuyaux hydrauliques. Éviter de
les plier et de les tordre en les
mettant en place. Un tuyau plié ou tordu
entraînera un fort retour de pression. Les plis et
coudes prononcés endommageront par ailleurs
l’intérieur du tuyau, provoquant son usure
précoce.
Ne pas faire tomber d’objets lourds
sur le tuyau. Un fort impact risque
de causer des dégâts intérieurs
(torons métalliques). L’application d’ une
pression sur un tuyau endommagé risque
d’entraîner sa rupture.
IMPORTANT: Ne pas soulever le
matériel hydraulique en saisissant
ses tuyaux ou ses raccords
articulés. Utiliser la poignée de transport ou
procéder d’une autre manière sûre.
ATTENTION : Garder le matériel
hydraulique à l’écart de flammes
et d’une source de chaleur. Une
forte température amollira les garnitures et les
joints et provoquera par conséquent des fuites.
La chaleur aaiblit également les matériaux et
les garnitures du tuyau. Pour une performance
maximale, ne pas exposer le matériel à une
température supérieure ou égale à 65 °C [150
°F]. Protéger tuyaux et vérins de projections de
soudure.
DANGER : Ne pas manipuler les
tuyaux sous pression. L’huile sous
pression qui risque de s’en
échapper peut pénétrer dans la peau et
provoquer des blessures graves. En cas
d’injection d’huile sous la peau, contacter
immédiatement un médecin.
AVERTISSEMENT : Utiliser des
vérins hydrauliques uniquement dans
un système couplé. Ne jamais utiliser
un vérin en présence de raccords
déconnectés. La surcharge du vérin peut avoir
des eets désastreux sur ses composants, qui
peuvent causer des blessures graves.
®
AVERTISSMENT : S’assurer de la
stabilité de l’ensemble avant de
lever une charge. Le vérin doit être
placé sur une surface plane capable
de supporter la charge. Lorsqu’applicable,
utiliser une base de vérin pour accroître la
stabilité. Ne pas souder ou modifier le vérin de
quelque façon que ce soit pour y fixer une base
ou un autre dispositif de support.
Éviter les situations où les charges
ne sont pas directement centrées
sur le piston du vérin. Les charges
décentrées imposent un eort considérable au
vérins et pistons. En outre, la charge risque de
glisser ou de tomber, ce qui crée un potentiel
de danger.
Répartir la charge uniformément sur
toute la surface d’appui. Toujours
utiliser un coussinet d’appui si des
accessoires non filetés sont utilisés.
IMPORTANT : Le matériel
hydraulique doit uniquement être
réparé par un technicien hydraulique
qualifié. Pour toute réparation,
contacter le centre de réparation ENERPAC
agréé le plus proche. Pour assurer la validité de
la garantie, n’utiliser que de l’huile ENERPAC.
AVERTISSEMENT : Remplacer
immédiatement les pièces usées ou
endommagées par des pièces
ENERPAC authentiques. Les pièces
de qualité standard se casseront et
provoqueront des blessures et des dégâts
matériels. Les pièces ENERPAC sont conçues
pour s’ajuster parfaitement et résister à de
fortes charges.

19
3.0 DESCRIPTION
Le manomètre numérique DGR-2 Enerpac
est conçu pour surveiller les pressions d’un
système jusqu’à 1380 bar [20 000 psi]. Les
fonctions standard comprennent :
• Achages disponibles en plusieurs unités:
psi, bar, mPa et kg/cm2(sélectionnable par
l’utilisateur).
• La fonction de réinitialisation du zéro garantit
que le manomètre lise la pression réelle du
système.
• Alimenté par deux piles AA 1.5V (incluses).
• Conception du boîtier selon IP67.
• Temporisation d’arrêt du manomètre
sélectionnable par l’utilisateur
• Conformité CE et RoHS.
Remarque : Reportez-vous à la section 7.0
de ce manuel pour connaître les spécifications
détaillées du produit et les dimensions
d’installation.
4.0 INFORMATIONS D’INSTALLATION
IMPORTANT : Veuillez lire et comprendre les
instructions et précautions suivantes avant
d’installer le manomètre afin d’en assurer le
bon fonctionnement et d’aider à en prévenir
toute défaillance.
AVERTISSEMENT : Une défaillance
entraînant des blessures et / ou des
dommages matériels peut être
provoquée par une surpression excessive, des
vibrations ou des pulsations de pression
excessives, une température de l’instrument
excessive, de la corrosion des parties
contenant la pression, ou tout autre usage
incorrect. Consultez Enerpac avant d’installer
le manomètre en cas de questions ou de
préoccupations.
Surpression :
Des pointes de pression supérieures à la
pression nominale du manomètre peuvent
causer des dommages électriques et / ou
mécaniques irréversibles aux éléments de
mesure et contenant de la pression. Les
coups de bélier et les surpressions peuvent
détruire n’importe quel capteur de pression
et doivent toujours être évités. Un amortisseur
de pression doit être installé pour éliminer les
eets néfastes des coups de bélier. Des coups
de bélier se produisent lorsque le débit du
fluide est stoppé soudainement, comme avec
des électrovannes rapides de fermeture. Les
surpressions se produisent lorsque le débit
est devient soudainement excessif, comme
lorsqu’une pompe est mise en marche à
pleine puissance ou qu’une vanne est ouverte
rapidement.
AVERTISSEMENT : Le manomètre
est calibré pour une pression
maximale de 1380 bar [20 000 psi].
Ne dépassez jamais cette pression maximale.
Surpressions :
Les surpressions endommagent plus
particulièrement les manomètres si les
tuyaux sont initialement vides. Pour éviter les
surpressions, les tuyauteries doivent (dans
la mesure du possible) rester pleines, les
pompes mises en marche lentement et les
vannes ouvertes lentement. Pour éviter les
dommages dus aux coupes de bélier et aux
surpressions, une chambre d’équilibre doit
être installée. Eets néfastes des coups de
bélier et des surpressions :
• Le manomètre présente un décalage du zéro
important.
• Le manomètre ache toujours la même
pression indépendamment de celle-ci.
• Un code d’erreur est aché sur l’écran.
Températures froides :
La formation de glace à l’orifice du manomètre
peut l’endommager de manière permanente.
Dans la mesure du possible, monter le
manomètre en position verticale afin d’éviter
les risques de surpression possibles à cause
du gel.
Remarque : Si vous soupçonnez que de l’eau
a pénétré le système, vérifiez les fuites sur
l’ensemble du système hydraulique. Eectuez
les réparations nécessaires avant de remettre
le système en exploitation.
Exigences pour l’installation :
Une clé hexagonale de 27 mm [1-1/16 po] est
nécessaire pour serrer le manomètre sur le
raccord hydraulique. Appliquez de la bande
téflon ou un composant de jointage approprié
sur le filetage femelle (NPTF) de 1/4 de pouce
du manomètre. À l’aide de la clé, serrez un
tour de plus qu’à la main ou bien jusqu’à ce
qu’un jointage étanche soit atteint.

20
Raccord hydraulique
femelle fileté (NPTF) 1/4
de pouce
ATTENTION : Serrer le manomètre
en saisissant ou en mettant un outil
sur le boîtier en plastique peut
causer des dommages permanents
au manomètre.
①
③④
②
5.0 MODE D'EMPLOI
Clavier :
①Marche-Arrêt / Entrée
|
|
②Zéro / Flèche haut / Tarage
ZERO ▴Tarage
③Choix Menu / Flèche bas / Rétroéclairage
MENU ▴
④Appuis courts ➟moins de 0,5 seconde,
ou longs
➠
– plus de 0,5 seconde