Omega DPG3500 Series User manual

Ranges and Resolution
See table below for ranges and user selectable units.
Units are user selectable via internal buttons
Resolution is fixed for each engineering unit
Accuracy
Includes linearity, hysteresis, repeatability
±0.25% of full scale ±1 least significant digit
Display
3 readings per second nominal display update rate
4 digit LCD, 0.5" H and 5 character 0.25" H alphanumeric
DPG3600, DPG5600: Red LED backlight
Batteries, Battery Life, Low Battery Indication
2 AA alkaline included. Approx. 2000 hours battery life
DPG3600, DPG5600: 150-1500 hrs. depending on backlight usage
Low battery symbol on display
Controls & Functions
Front button turns gauge on or off, zeros gauge reference gauges,
and cycles through min/max functions
Internal push buttons for selection of engineering units and
auto shutoff times. Pass code protected setup and calibration.
DPG3600, DPG5600: Front button activates backlighting for
1 minute
Min/Max Functions
Minimum and maximum readings stored 3 times per second
Front button cycles through min display, max display, clear
Configurable for min only, max only, min/max, or none, clear
min/max at power off or retain min/max at power off
Calibration
Pass code protected calibration
Non-interactive zero, span, and linearity, ±10% of range
Auto Shutoff
User selectable 1 minute to 8 hours or front button on/off
Factory default 5 minutes
Weight
Gauge: 9 ounces (approximately)
Shipping: 1 pound (approximately)
Housing
Extruded aluminum case, epoxy powder coated,
ABS/ polycarbonate bezel, front and rear gaskets,
polycarbonate label
DPG3500, DPG3600: ABS/polycarbonate NEMA 4X
case, rear gasket, polycarbonate label
Connection, Material, Media Compatibility
1/4" NPT male fitting, 316L stainless steel
All wetted parts are 316L stainless steel
Compatible with most liquids and gases
Overpressure
2 X pressure range for 3 psi to 2000 psi sensors
5000 psig for ranges using 3000 psig sensor
7500 psig for ranges using 5000 psig sensor
Over-range display 112.5% FS: I–––or I –.–.–.–
Vacuum service: all 15 psi, 30 psia, all 100 psi, all 200 psi sensors
Under-range display (non-vacuum sensors): –Err
Burst Pressure
4 X sensor pressure rating or 10,000 psi, whichever is less
Environmental
Storage temperature: –40 to 203°F (–40 to 95°C)
Operating temperature: –4 to 185°F (–20 to 85°C)
Compensated temperature: 32 to 158°F (0 to 70°C)
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MADE IN
DPG3500, DPG3600, DPG5500, DPG5600 Series
Digital Pressure Gauges M4094/0112
DPG3500 Battery Powered, Min/Max/Zero, NEMA 4X
DPG3600 Battery Powered, Min/Max/Zero, NEMA 4X, Display Backlighting
DPG5500 Battery Powered, Min/Max/Zero
DPG5600 Battery Powered, Min/Max/Zero, Display Backlighting
Range
add after model number Default Units Selectable Units (models manufactured after 12-23-2012)
03G 0-3.000 psig psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa
85INH20G 0-85.0 inches of water
05G 0-5.000 psig psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa
140INH20G 0-140.0 inches of water
15A 15.00-0 psi absolute absolute: psia, inHga, inH2Oa, oz/in2a, g/cm2a, mmHga, torra, mbara, cmH2Oa, mmH2Oa, ftH2Oa, kPaa, MPaa, bara, kg/cm2a, atma
760TORRA 760.0-0 torr absolute
30INHGVAC 0-30.00 inHg vac vacuum: psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa, MPa, bar, kg/cm2, atm
30V15G –30.00 inHg vac to 15.00 psig ±psig, ±inHg, ±inH2O, ±oz/in2, ±g/cm2, ±mmHg, ±torr, ±mbar, ±cmH2O, ±mmH2O, ±ftH2O, ±kPa, ±MPa, ±bar, ±kg/cm2, ±atm
15G 0-15.00 psig psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa, MPa, bar, kg/cm2, atm
1BARG 0-1.000 bar
30A 30.00-0 psi absolute absolute: psia, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa, MPa, bar, kg/cm2, atm
30G 0-30.00 psig psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa, MPa, bar, kg/cm2, atm
60G 0-60.00 psig psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa, MPa, bar, kg/cm2, atm
30V100G –30.0 inHg vac to 100.0 psig ±psig, ±inHg, ±inH2O, ±oz/in2, ±g/cm2, ±mmHg, ±torr, ±mbar, ±cmH2O, ±mmH2O, ±ftH2O, ±kPa, ±MPa, ±bar, ±kg/cm2, ±atm
100G 0-100.0 psig psig, inHg, inH2O, oz/in2, g/cm2, mmHg, torr, mbar, cmH2O, mmH2O, ftH2O, kPa, MPa, bar, kg/cm2, atm
7BARG 0-7.000 bar
30V200G –30.0 inHg vac to 200.0 psig ±psig, ±inHg, ±inH2O, ±oz/in2, ±ftH2O, ±kPa, ±MPa, ±bar, ±kg/cm2, ±atm
200G 0-200.0 psig psig, inHg, inH2O, oz/in2, ftH2O, kPa, MPa, bar, kg/cm2, atm
14BARG 0-14.00 bar
300G 0-300.0 psig psig, inHg, oz/in2, ftH2O, kPa, MPa, bar, kg/cm2, atm
500G 0-500.0 psig psig, inHg, ftH2O, kPa, MPa, bar, kg/cm2, atm
1KG 0-1000 psig psig, inHg, ftH2O, kPa, MPa, bar, kg/cm2, atm
2KG 0-2000 psig psig, inHg, ftH2O, MPa, bar, kg/cm2, atm
3KG 0-3000 psig psig, inHg, ftH2O, MPa, bar, kg/cm2, atm
5KG 0-5000 psig psig, MPa, bar, kg/cm2, atm
¼" NPT
2.88"
3.38" Standard
3.5" NEMA 4X
0.75"
Omega Engineering / Made in USA
1.65"
Standard
2.0"
NEMA 4X
3.0"
Turn at
hex
fitting
only
XXXXX
8
8
8
8
82
Low battery indicator
Turn at
hex
fitting
only
DPG3500 NEMA 4X
DPG3600 NEMA 4X
DPG5500
DPG5600

If excessive vacuum is applied to a pressure-only gauge, the display
will indicate -Err until the vacuum is released. Applying vacuum to
a gauge designed for pressure may damage the pressure sensor.
If excessive pressure is applied (112.5% over range), an out-of-
range indication of 1 – – – or 1.–.–.– will be displayed depending
on model.
Display Backlighting (DPG3600, DPG5600 models only)
Display backlighting can be turned on by momentarily pressing the
front button whenever the gauge is on. The backlighting will turn
on for one minute and then automatically shut off. This also restarts
the auto shutoff timer. The display backlighting will not be apparent
under bright lighting conditions.
Minimum and Maximum Readings
Gauges are normally configured with minimum and maximum
capture functions enabled. One or both can be disabled in the
Advanced Configuration mode.
Minimum and maximum readings are continuously stored and updat-
ed whenever the gauge is on. The stored readings can be manually
cleared if desired. The MAX and MIN memory is also cleared when-
ever the gauge is off unless configured to save the readings.
Press and hold the button for about 1 second until MAX is displayed
alternating with the units. The maximum reading will be continu-
ously updated. The gauge may be left in this mode.
After MAX is displayed, press and hold the button for about 1 sec-
ond until MIN is displayed alternating with the units. The minimum
reading will be continuously updated. The gauge may be left in this
mode. If excessive vacuum is applied to a pressure-only gauge
while in this mode, the display will indicate –Err until the MAX/MIN
readings are cleared.
After MIN is displayed, press and hold the button again for about 1
second until * * * * is displayed. The MAX and MIN memory is not
erased and the gauge returns to normal operation with the display
indicating the current reading.
Press and continue to hold the button until the display indicates clr
MX/MN (about 3 seconds total) and then release the button. Both
maximum and minimum values are cleared and the gauge returns
to the normal mode and displays the current pressure.
Shut-Down
To shut off the gauge manually at any time, press and hold the button
until the display indicates OFF (about 5 seconds) and then release.
When an auto shutoff timer is used, the display indicates OFF five
seconds prior to auto shutoff. The button can be pressed to keep
the gauge on. The auto shutoff and backlight (if equipped) timers
are reset whenever the button is pressed and released.
If the gauge set up without auto shutoff (on/off operation) it will stay
on until manually shut off or until the batteries are depleted. Turn
gauge off when not in use to conserve battery life.
Engineering Unit Selection
Engineering unit selection is done via internal buttons to help pre-
vent accidental or unauthorized changes. The selected engineering
unit is stored in non-volatile memory and will be retained even with
the gauge off or batteries removed. The available engineering units
depend on the sensor range and available display resolution.
Compound (inHg/PSIG) gauges must be changed to display single-
unit vacuum/pressure readings in the Advanced Configuration mode
before different engineering units can be selected.
The default engineering units are mathematically converted to the
newly selected engineering unit. When the gauge is powered up,
the originally configured range is displayed and then the conversion
with the selected engineering unit is displayed.
To change engineering
units remove the rear
cover to gain access to
the two internal buttons
located near the lower
right and left corners of
the circuit board.
With the gauge powered
up, press and hold the UP
button. Release the button
when the engineering units
begin to flash.
Use the UP and DOWN but-
tons to scroll through the list of engineering units available for the
pressure range of the sensor.
When the desired units are displayed, press and release the front
button to save the selection and return to normal operation.
Note: The gauge will automatically revert to normal operation if no
buttons are operated for approximately 15 seconds.
Replace the rear cover taking care not to pinch the power wires
between the cover and the case.
Read these instructions before using the gauge. Configuration may
be easier before installation. Contact the factory for assistance.
These products do not contain user-serviceable parts. Contact us
for repairs, service, or refurbishment.
Gauges must be operated within specified ambient temperature ranges.
Outdoor or wash down applications require a NEMA 4X gauge or
installation in a NEMA 4X housing.
Use a pressure or vacuum range appropriate for the application.
Use fittings appropriate for the pressure range of the gauge.
Due to the hardness of 316 stainless steel, it is recommended that
a thread sealant be used to ensure leak-free operation.
For contaminated media use an appropriate screen or filter to
keep debris out of gauge port.
Remove system pressures before removing or installing gauge.
Install or remove gauge using a wrench on the hex fitting only. Do
not attempt to turn gauge by forcing the housing.
Good design practice dictates that positive displacement liquid
pumps include protection devices to prevent sensor damage from
pressure spikes, acceleration head, and vacuum extremes.
 Avoid permanent sensor damage! Do not apply vacuum to non-
vacuum gauges or hydraulic vacuum to any gauges.
 Avoid permanent sensor damage! NEVER insert objects into
gauge port or blow out with compressed air.
Gauges are not for oxygen service. Accidental rupture of sensor dia-
phragm may cause silicone oil inside sensor to react with oxygen.
Gauge reference models read zero with the gauge port open.
Compound ranges read vacuum in inches of Mercury, pressure in
psig, and zero with the gauge port open.
1000 psi and higher sensors are a sealed reference type. They read
zero with the gauge port open are internally referenced to 14.7 psi.
They are functionally similar to gauge reference sensors.
Absolute reference gauges read zero at full vacuum and atmo-
spheric pressure with the gauge port open. Note that readings of
atmospheric pressure vary continuously.
Power-Up
Press and hold the front button for approximately 1 second.
The display is tested, the default full-scale range is indicated, the
full-scale range in the selected units are indicated, the display is
tested again, then the actual pressure and units are displayed.
Power-Up With Zero
This applies to gauge reference models only. Absolute reference
gauges do not use the zero feature since they read atmospheric
pressure under normal conditions.
Be sure the gauge port is exposed to normal atmospheric pressure
and no pressure is applied. The zeroing function is only activated
at each power-up and the stored zero correction is erased when
the gauge is shut off.
Press and hold the front button. The display is tested and then oooo
is displayed. The gauge is now zeroed. Release the button and the
full-scale range in the selected units are indicated, the display is
tested again, then the actual pressure and units are displayed.
Attempting to zero the gauge with pressure greater than approxi-
mately 3% of full-scale pressure or vacuum applied will result in an
error condition, and the display will alternately indicate Err 0 and
the actual measured pressure. The gauge must be powered down
to reset the error condition.
Normal Operation
Following the start-up initialization, the display indicates the pres-
sure reading updated approximately 3 times per second. The auto
shutoff timer starts when the gauge is powered up or whenever the
button is pushed, unless the gauge shutoff time was set to zero for
on/off operation.
Types of Gauges
Auto Shutoff Time Selection
Auto shutoff time selection is done via internal buttons to help
prevent accidental or unauthorized changes. The selected shut off
time is stored in non-volatile memory and will be retained even with
the battery off or batteries removed.
Remove the rear cover to gain access to the two internal buttons
located near the lower right and left corners of the circuit board.
With the gauge powered up, press and hold the DOWN button.
Release the button when the auto shutoff time is displayed.
The lower display will indicate AST M if the time displayed is in
minutes, and AST H if it in hours.
An auto shutoff time of 0 signifies that the auto shutoff feature is
disabled and the front button turns the gauge on and off.
Use the UP and DOWN buttons to select 0, 1, 2, 5, 10, 15, 20 or 30
minutes, or 1, 2, 4, or 8 hours.
When the desired time is displayed, press and release the front but-
ton to save the selection and return to normal operation.
Note: The gauge will automatically revert to normal operation if no
buttons are operated for approximately 15 seconds.
Replace the rear cover taking care not to pinch the power wires
between the cover and the case.
Advanced configuration requires a pass code for access and allows
more features to be configured.
Remove the rear cover to gain access to the buttons located near
the lower right and left corners of the circuit board.
With the gauge off, press and hold the UP button. Then press the
front button. Release all buttons when the display indicates CFG
and the program version then the full-scale range is indicated and
the display is tested.
The display then indicates _ _ _ _ with the first underscore blink-
ing, and with CFGPC (configuration pass code) on the character
segments.
Note: The gauge will automatically revert to normal operation if
no buttons are operated for approximately 15 seconds. To cancel
and return to normal operation, press and release the front button
without entering any pass code characters.
Pass Code Entry
The factory default is 3510, but this may be changed by the user
under the Pass Code Configuration section.
1. Use the UP or DOWN buttons to set the left-most digit to 3.
2. Press and release the front button to move to the next position.
The 3 will remain, and the second position will be blinking.
3. Use the UP or DOWN buttons to select 5.
4. Press and release the front button to index to the next position.
35 will remain, and the third position will be blinking.
5. Use the UP or DOWN buttons to select 1.
6. Press and release the front button to index to the next position.
351 will remain, and the fourth position will be blinking.
7. Use the UP or DOWN buttons to select 0.
8. Press and release the front button to proceed with configuration
procedures.
If an incorrect pass code is entered, the gauge will return to the
start of the pass code entry sequence.
Factory/User Configuration
The upper display section will be blank, and the lower section will
display either USER_ or FCTRY.
If USER_ is selected, the user configuration can be modified as
described in the following steps.
To select USER_, press and release the DOWN button.
The lower display will indicate USER_.
Press and release the front button to continue.
If FCTRY is selected, the existing user configuration will be replaced
by the original factory configuration.
To select FCTRY, press and release the UP button.
The lower display will indicate FCTRY.
Press and release the front button to restore the factory configura-
tion and restart the gauge.
Max/Min Configuration
Use the UP and DOWN buttons to select from the following:
MX/MN Both highest and lowest values will be captured
MX/--- Only highest value will be captured
--/MN Only lowest value will be captured
--/-- Capture feature is disabled
Press and release the front button to move to the next parameter.
Basic Configuration
Installation Precautions
DPG 3500, 3600, 5500, 5600 Series Digital Pressure Gauges
2
Advanced Configuration
Operation
Basic Configuration—continued
Operation—continued
Function Button Prompt (Release Button)
On Press for 1
second
Display test > default units > selected
units FUll scale > display test >
actual reading
Zero
(gauge ref.
only)
Press and
hold
Display test >
oooo > default units >
selected units FUll scale >
display test > actual reading
Hi reading Press/hold Max > max. reading & units
Lo reading Press/hold MIN > min. reading & units
Exit Hi/Lo Press/hold
 > actual reading
Clear Hi/Lo Press/hold Max > Clr mx/mn > actual reading
Clear, off Press/hold Max > Clr mx/mn > OFF

Absolute Reference Gauges
Apply full vacuum to the gauge. The character display will alternate
between ZERO and CAL. Press the UP and DOWN buttons to obtain
a display indication of zero.
Apply full-scale pressure. The character display will alternate
between +SPAN and CAL. Press the UP and DOWN buttons to obtain
a display indication equal to full-scale pressure.
Apply 50% of full-scale pressure. The lower display will alternate
between +MID and CAL. Press the UP and DOWN buttons to obtain
an indication equal to 50% of full-scale pressure.
Compound and Bipolar Gauges
In addition to the steps described above for pressure gauges, apply
full-scale vacuum. The character display will alternate between
-SPAN and CAL. Adjust for a display indication of actual applied
vacuum using the UP and the DOWN buttons.
For bipolar and –30.00inHg/+15.00psig compound range models
only, apply 50% full-scale vacuum. The character display will alter-
nate between –MID and CAL. Adjust for a display indication equal
to 50% of full-scale vacuum using the UP and the DOWN buttons.
Save Calibration
Once the adjustments are complete, press and hold the front but-
ton until the display indicates – – – – then release the button to
store the calibration parameters in non-volatile memory and restart
the gauge.
Verify the pressure indications at 0%, 25%, 50%, 75% and 100%
of full scale.
Replace the rear cover taking care not to pinch the wires between
the cover and the case.
Remove the rear cover to access the buttons located near the lower
right and left corners of the circuit board.
View or Change User Configuration Pass Code
Remove the rear cover to access the buttons located near the lower
right and left corners of the circuit board.
With the unit off, press and hold the UP button, then press the
front button.
Release all buttons when the display indicates CFG.
View or Change User Calibration Pass Code
With the unit off, press and hold the DOWN button, then press the
front button.
Release all buttons when the display indicates CAL.
Enter Access Code 1220
Before the unit enters the view or change pass code mode, the
display initially indicates _ _ _ _ with the first underscore blinking,
and with CFGPC or CALPC on the character display.
Note: The gauge will automatically revert to normal operation if no
buttons are operated for approximately 15 seconds.
To cancel and return to normal operation, press and release the
POWER button without entering any pass code characters.
1. Use the UP and DOWN buttons to set the left-most digit to 1.
2. Press and release the front button to move to the next position.
The 1 will remain, and the second position will be blinking.
3. Use the UP and DOWN buttons to select 2.
4. Press and release the front button to index to the next position.
12 will remain, and the third position will be blinking.
5. Use the UP and DOWN buttons to select 2.
6. Press and release the front button to move to the next position.
1 2 2 will remain, and the fourth position will be blinking.
7. Use the UP and DOWN buttons to select 0.
8. Press and release the front button to proceed.
Note: If an incorrect access code was entered, the gauge will return
to the start of the access code entry sequence.
Once the access code has been entered correctly, the display will
indicate the existing user-defined pass code with CFGPC or CALPC
on the character segments.
1. Operate the UP or DOWN button to select the first character of
the new pass code.
2. When the correct first character is being displayed, press and
release the front button to proceed to the next pass code char-
acter.
3. Repeat above until the entire pass code is complete.
4. To exit, press and hold the front button. Release the button
when the display indicates – – – – to restart the gauge.
5. Replace the rear cover taking care not to pinch the power wires
between the cover and the case.
5. Use the UP or DOWN buttons to select 1.
6. Press and release the front button to index to the next position.
351 will remain, and the fourth position will be blinking.
7. Use the UP or DOWN buttons to select 0.
8. Press and release the front button to proceed with configuration
procedures.
If an incorrect pass code is entered, the gauge will return to the
start of the pass code entry sequence.
Calibration Mode
The gauge enters and remains in the calibration mode until
restarted manually or power is removed. Features not related to
calibration are disabled and compound range models are set for the
same engineering units for pressure and for vacuum.
The calibration may be performed in any of the available engineer-
ing units as well as percent (PCT). For greatest accuracy, use the UP
and DOWN buttons to select engineering units for calibration with
highest resolution (highest number of display counts). Press and
release the front button when the appropriate engineering units are
displayed. Suggested units are listed below.
Sensor Suggested units for calibration
5 PSI 5.000 PSI
15 PSI 775.7 MMHG (TORR)
30 PSI 61.08 INHG
50 PSI 50.00 PSI
60 PSI 60.00 PSI
100 PSI 7.031 KG/CM2
200 PSI 407.2 INHG
300 PSI 610.8 INHG
500 PSI 500.0 PSI
1000 PSI 70.31 KG/CM2
2000 PSI 4072 INHG
3000 PSI 6108 INHG
5000 PSI 5000 PSI
Any 100.00 PCT (percent)
The display will then indicate the currently applied pressure in the
engineering units selected for calibration.
UP and DOWN Button Operation
Each time one of the calibration buttons is pressed and released
quickly, a small change is made to the digitized pressure signal. It
may take more than one of these small changes to result in a single
digit change on the display.
To make larger changes, press and hold the appropriate calibration
button. After about one second, the display will begin to change
continuously. Release the button to stop. Then make fine adjust-
ments by pressing and quickly releasing the calibration buttons as
previously described.
Gauge Reference Pressure Gauges
Apply zero pressure by venting the gauge port to atmosphere. The
character display will alternate between ZERO and CAL. Adjust for
a display indication of zero using the UP and the DOWN buttons.
Apply full-scale pressure. The character display will alternate
between +SPAN and CAL. Adjust for a display indication of full-
scale pressure using the UP and the DOWN buttons.
Apply 50% full-scale pressure. The character display will alternate
between +MID and CAL. Adjust for a display indication equal to
50% of full-scale pressure using the UP and the DOWN buttons.
Gauge Reference Vacuum Gauges
Apply zero pressure by venting the gauge port to atmosphere. The
character display will alternate between ZERO and CAL. Adjust for
a display indication of zero using the UP and the DOWN buttons.
Apply full-scale vacuum. The character display will alternate
between +SPAN and CAL. Adjust for a display indication of full-
scale vacuum using the UP and the DOWN buttons.
Apply 50% full-scale vacuum. The character display will alternate
between +MID and CAL. Adjust for a display indication equal to
50% of full-scale vacuum using the UP and the DOWN buttons.
Max/Min Memory
The upper display section will indicate clr.
Use the UP and DOWN buttons to select from the following:
AUTO Automatically clear max. and min. values when the
gauge is powered off
MAN Manually clear max. and min. values
Press and release the front button to move to the next parameter.
Gauge Type Configuration
This will only appear with 15, 100, or 200 psig ranges that were
originally ordered as compound gauges.
Use the UP and DOWN buttons to select from the following:
–/+EU Vacuum is indicated as negative pressure in the
selected engineering units
CMPND Vacuum is negative INHG, pressure is PSIG. This setting
will disable engineering unit selection.
Press and release the front button to save the user configuration
and restart the gauge.
Replace the rear cover taking care not to pinch the power wires
between the cover and the case.
A low battery indication will be shown in the upper left-hand corner
of the display when the battery voltage falls sufficiently. The battery
should be replaced soon after the indicator comes on or unreliable
readings may result.
1. Remove the 6 Phillips screws on the back of the unit.
2. Remove batteries by lifting up the positive end of the battery
(opposite the spring) taking care not to bend the battery holder
spring.
3. Discard old batteries properly, do not discard into fire, sources
of extreme heat, or in any hazardous manner.
4. Always replace both batteries at the same time with high quality
alkaline batteries. Install batteries with correct orientation. The
negative (flat) end of each battery should be inserted first facing
the battery holder spring.
5. Replace the back cover, including the rubber gasket.
Gauges are calibrated at the factory using equipment traceable to
NIST. There is no need to calibrate the gauge before putting it into
service. Calibration intervals depend on your quality control pro-
gram requirements, although many customers calibrate annually.
Calibration should only be performed by qualified individuals using
appropriate calibration standards and procedures. The calibration
equipment should be at least four times more accurate than the
gauge being calibrated.
The calibration system must be able to generate and measure pres-
sure/vacuum over the full range of the gauge.
A vacuum pump able to produce a vacuum of 100 microns (0.1
torr or 100 millitorr) or lower is required for vacuum and absolute
gauges. Warning: application of vacuum to non-vacuum models
may result in irreparable damage to the sensor.
Allow the gauge to acclimate to ambient temperature for 20
minutes.
Remove the rear cover to gain access to the UP and DOWN buttons
located near the lower right and left corners of the circuit board.
Install fresh batteries.
Entering Calibration Mode
With the gauge off, press and hold the DOWN button. Then press
the front button. Release all buttons when the display indicates CAL.
The display begins by indicating the full-scale positive pressure
rating of the gauge in the engineering units as configured by the
factory, and then shows all display.
Before the gauge enters the Calibration Mode, the display initially
indicates _ _ _ _ with the first underscore blinking, and with CALPC
(calibration pass code) on the lower display.
Note: The gauge will automatically revert to normal operation if
no buttons are operated for approximately 15 seconds. To cancel
and return to normal operation, press and release the front button
without entering any pass code characters.
Enter the User-Modifiable Pass Code
The factory default is 3510, but this is user changeable.
1. Use the UP or DOWN buttons to set the left-most digit to 3.
2. Press and release the front button to move to the next position.
The 3 will remain, and the second position will be blinking.
3. Use the UP or DOWN buttons to select 5.
4. Press and release the front button to index to the next position.
35 will remain, and the third position will be blinking.
DPG 3500, 3600, 5500, 5600 Series Digital Pressure Gauges 3
User-Defined Pass Code Configuration
Battery Replacement
Calibration Preparation
Calibration
Calibration—continued Calibration—continuedAdvanced Configuration—continued

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the
European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without
notice. WARNING: These products are not designed for use in, and should not be used for, human applications.
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase.
OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping
time. This ensures that OMEGA’s customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR)
number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced
at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling,
improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows
evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or
vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components which wear are not
warranted, including but not limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors
nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or
written. OMEGA warrants only that the parts manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies
of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be
liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used
in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear
installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic
WARRANTY / DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage
whatsoever arising out of the use of the Product(s) in such a manner.
Servicing North America:
USA: One Omega Drive, Box 4047
ISO 9001 Certified Stamford CT 06907-0047
Tel: [phone] FAX: [phone]
e-mail: [email protected]
Canada: 976 Bergar
Laval (Quebec) H7L 5A1, Canada
Tel: [phone] FAX: [phone]
e-mail: [email protected]
For immediate technical or application assistance:
USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA®
Customer Service: 1-800-622-2378 / 1-800-622-BEST®
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN®
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Mexico: En Espan˜ol: [phone]-7803 e-mail:[email protected]
FAX: [phone] [email protected]
OMEGAnet®Online Service Internet e-mail
www.omega.com [email protected]
Servicing Europe:
Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [email protected]
Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic
Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [email protected]
France: 11, rue Jacques Cartier, 78280 Guyancourt, France
Tel: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [email protected]
Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [email protected]
United Kingdom: One Omega Drive, River Bend Technology Centre
ISO 9002 Certified Northbank, Irlam, Manchester
M44 5BD United Kingdom
Tel: [phone]
FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [email protected]
RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO
OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN
ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any
correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
PATENT NOTICE: U. S. Pat. No. 6,074,089; 5,465,838 / Canada 2,228,333; 2,116,055 / UK GB 2,321,712 / Holland 1008153 / Israel 123052 / France
2 762 908 / EPO 0614194. Other patents pending.
FOR WARRANTY RETURNS, please have the following information
available BEFORE contacting OMEGA:
1. Purchase Order number under which the product was PURCHASED,
2. Model and serial number of the product under warranty, and
3. Repair instructions and/or specific problems relative to the product.
FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges.
Have the following information available BEFORE contacting OMEGA:
1. Purchase Order number to cover the COST of the repair,
2. Model and serial number of the product, and
3. Repair instructions and/or specific problems relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and
engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2012 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic
medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.