DPG1000B, DPG1001B, DPG1000BBL, DPG1100B, DPG1100BBL
2
Installation and Precautions
4
Read these instructions before using the gauge. Contact
the factory for assistance.
4
These products do not contain user-serviceable parts.
Contact us for repairs, service, or refurbishment.
4
Gauges must be operated within specified ambient tem-
perature ranges.
4
Outdoor or wash down applications require a NEMA 4X
gauge or installation in a NEMA 4X housing.
4
Use a pressure or vacuum range appropriate for the
application.
4
Use fittings appropriate for the pressure range of the
gauge.
4
Due to the hardness of 316 stainless steel, it is recom-
mended that a thread sealant be used to ensure leak-
free operation.
4
For contaminated media use an appropriate screen or
filter to keep debris out of gauge port.
4
Remove system pressures before removing or installing
gauge.
4
Install or remove gauge using a wrench on the hex fitting
only. Do not attempt to turn gauge by forcing the housing.
4
Good design practice dictates that positive displacement
liquid pumps include protection devices to prevent sen-
sor damage from pressure spikes, acceleration head,
and vacuum extremes.
p
Avoid permanent sensor damage! Do not apply vacuum
to non-vacuum gauges or hydraulic vacuum to any
gauges.
p
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 diaphragm may cause silicone oil inside sensor to
react with oxygen.
Absolute Reference Gauges
These models have engineering units shown on the rear
label such as PSIA, INHGA, INH2OA, ZIN2A, BARA, MBARA,
KPAA, TORR or TORRA, MMHGA, KGCMA, ATMA. The
“A” indicates absolute reference. These ranges display
atmospheric pressure when the gauge port is open to the
atmosphere. They display zero at high vacuum.
When the gauge port is open to the atmosphere, it is
normal for the reading to constantly change in response
to atmospheric pressure changes. Do not adjust the
calibration controls!
Operation – Ranges up to 1999
Press the round button on the front of the gauge to activate
the display. The gauge will stay on for a period of time
determined by the auto-shutoff time. The gauge can be
shut off at any time by pressing the button again.
If the gauge was ordered without auto shutoff it will stay on
until the button is pressed or until the batteries are depleted.
Turn gauge off when not in use to conserve battery.
Display backlighting on BBL models is on whenever the
gauge is on. Backlighting is not apparent under bright
conditions.
Operation – Ranges above 2000 including
3000 psi, 5000 psi
These ranges have a 4-digit display with a lower
alphanumeric display. Press and hold the pushbutton for
approximately 1 second. The full-scale range is indicated,
display segments are tested, and the reading and units are
displayed.
Power-Up With Zero – Ranges above 2000
including 3000 psi, 5000 psi
1. Make absolutely certain no pressure is applied to the
gauge. The gauge port should be exposed to normal
atmospheric pressure. Note that the zeroing function
may only be activated at power-up and the stored zero
correction is erased when the gauge is shut off.
2. Press and hold the pushbutton.
3. The full-scale range is indicated and the display segments are
tested.
4. Continue to press the pushbutton until o o o o is displayed
and then release the button. This indicates that the gauge has
been zeroed.
5. The actual pressure is displayed.
Attempting to zero the gauge with pressure greater than
approximately 3% of full-scale applied will result in an error
condition, and the display will alternately indicate
E
r r
0
and the actual measured pressure. The gauge must be
powered down to reset the error condition.
Absolute reference gauges do not use the zero feature
since they read atmospheric pressure under normal
conditions.
Normal Operation – Ranges 2000 and up
including 3000 psi, 5000 psi
Following the start-up initialization, the display indicates
the pressure reading updated approximately 3 times per
second and the units. The auto shutoff timer starts when
the gauge is powered up or whenever the button is pushed,
unless the gauge was ordered without an auto shutoff time
(
-NS
option).
If excessive vacuum is applied to a pressure-only gauge,
the display will indicate
–
E
r r
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
i
– – – or
i
–.–.–.– will be displayed
depending on model.
Display Backlighting (BBL models only)
Display backlighting can be turned on by momentarily
pressing the 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. Backlighting is not apparent under bright conditions.
Shut-Down
To shut off the gauge manually at any time, press and hold
the pushbutton until the display indicates O F F (about 5
seconds) and then release.
For gauges with auto shutoff, the display indicates O F
F five seconds prior to auto shutoff. The pushbutton can
be pressed to keep the gauge on. The auto shutoff and
backlight (if equipped) timers are reset whenever the
pushbutton is pressed and released.
If the gauge was ordered without auto shutoff, 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.
Battery Replacement
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.
Remove the 6 Phillips head screws on the back of the unit.
Remove the battery holder or cover depending on the
model.
Carefully remove batteries from the holders by lifting up the
positive end of the battery (opposite the spring). Take care
not to bend or distort the battery retention springs.
DO NOT discard the old battery into fire, any other sources
of extreme heat, or in any other hazardous manner. Please
consult local authorities if there is any question about
proper disposal.
Always replace both batteries at the same time with high
quality alkaline batteries. Observe the polarity of the
batteries when replacing them. The negative (flat) end of
each battery should be inserted first, and should face the
spring in the battery holder.
Replace the back cover, including the rubber sealing
gasket.
CAUTION:
Turn at
hex
fitting
only
Turn at
hex
fitting
only!
1
/
4
”NPT
3.38”
0.75”
PSIG
Span
Zero
2.88”
1.65”
1000B, 1001B, 1000BBL
OMEGA Engineering Inc./Made in USA
3
1
/
2
digit or
4
1
/
2
digit display
1
/
4
”NPT
3.0”
3.5”
2.0”
PSIG
Span
Zero
OMEGA Engineering Inc./Made in USA
0.75”
1100B and 1100BBL (NEMA 4X)
3
1
/
2
digit or
4
1
/
2
digit display
WARNING:
This product can expose you to chemicals including
nickel and chromium, which are known to the State of Califor-
nia to cause cancer or birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
