DPG 2001B and DPG2004B Series Digital Pressure Gauges
2
Installation Precautions
Error or Out-of-Range Indications
Attempting to zero the gauge with pressure
greater than approximately 3% of full-scale
pressure or vacuum applied will result in an
error condition. The display will alternately
indicate
Err 0
and the actual pressure.
The gauge must be powered down to reset
the error condition.
If excessive vacuum is applied to a
pressure-only gauge, the display will
indicate
-Err
until the vacuum is released.
Applying vacuum to a pressure gauge can
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.
0
r
r
E
r
r
E
- or -
Display Backlighting
—
BL Versions Only
Display backlighting can be turned on by momentarily pressing the
Power 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.
Shut Down
To shut off the gauge manually at any time,
press and hold the Power button until the
display indicates
OFF
(about 5 seconds)
and then release.
When the auto shutoff timer is used, the
display indicates
OFF
five seconds prior
to auto shutoff. Press the Power button to
keep the gauge on.
If the gauge is 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 batteries.
F
F
O
t
s
Zero/Clear
Memory
*
hold
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
batteries 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 the battery cover or cradle (depending on model).
Remove batteries by lifting up the positive end of the battery
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.
Power-Up and Normal Operation
Your gauge is shipped ready to use. It was
factory calibrated just prior to shipment
with batteries installed.
Press and hold the Power button for
approximately 1 second.
The display is tested.
The full-scale range is indicated.
The display test is briefly shown again.
The actual pressure and units are
displayed. The gauge is ready for use.
Occasional flashing of the minus sign is
normal and indicates the gauge is at zero
pressure.
Following the start-up initialization, the display indicates the
pressure reading updated approximately 3 times per second. The
auto shutoff timer starts when the gauge is powered and resets
whenever any button is pressed, unless the gauge shutoff time was
set to zero for on/off operation.
X X X X X
88888
t
s
Zero/Clear
Memory
2
*
psig
0.0
X X X X X
88888
2
psig
200.0
full
scale
Auto Shutoff Time Selection
The auto shutoff time is displayed on the
upper display. The lower display will indicate
AST M
if the time displayed is in minutes
or
AST H
if it is in hours.
Use the
s
and
t
buttons to select 0, 1, 2,
5, 10, 15, 20, or 30 minutes, or 1, 2, 4, or
8 hours.
A setting of zero disables the auto shutoff
timer. This requires using the Power button
to shut the gauge off.
When the desired length of time is displayed,
press and release the Power button to save
your selection and move to the next parameter.
t
s
Zero/Clear
Memory
*
*
5
AST M
- or -
t
s
Zero/Clear
Memory
*
I
AST H
Zero the Display
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 is in the normal
operating mode. The gauge port must be
exposed to normal atmospheric pressure
with no pressure or vacuum applied.
Press and hold the Zero/Clear button.
Occasional flashing of the minus sign with
zero pressure/vacuum is normal.
The stored zero correction is erased when
the gauge is shut off.
Continue to press the Zero/Clear
button
until
oooo
is displayed.
Release the button.
The gauge in now zeroed.
psig
0.0
t
s
Zero/Clear
Memory
*
hold
psig
0. I
o
o
o
o
t
s
Zero/Clear
Memory
*
Enter Gauge Configuration Mode
The configuration mode allows changing
engineering units, shut off time, memory
labels, or resetting these to factory defaults.
The gauge uses a 4 digit pass code to enter
the configuration mode. This is to prevent
unauthorized changing of settings.
With the gauge off, press and hold the
s
button. Then press the Power button.
Release all buttons when the display
indicates
CFG
. The gauge firmware version
is also displayed.
The gauge then goes through the normal
power up sequence.
The display prompts for entry of the
configuration pass code (
CFGPC
), with the
first underscore blinking.
Note: The gauge will automatically revert
to normal operation if no buttons are pressed for approximately
15 seconds. To cancel and return to normal operation, press
and release the Power button without entering any pass code
characters.
G
F
C
firmware version
power up sequence
_
_
_
_
CFGPC
hold
t
s
Zero/Clear
Memory
*
1
*
2
Enter the pass code. 3510 is the factory
default, but it is user-modifiable.
Use the
s
or
t
buttons to set the left-
most digit to 3.
t
s
Zero/Clear
Memory
*
*
_
_
_
3
CFGPC
- or -
_
_
5
3
CFGPC
_
_
_
3
CFGPC
_
I
5
3
CFGPC
0
I
5
3
CFGPC
Press and release the Power button to index
to the next position. The 3 will remain, and
the second position will be blinking.
Use the
s
or
t
buttons to select 5.
Press and release the Power button to
index to the next position. 3 5 will remain,
and the third position will be blinking.
Use the
s
or
t
buttons to select 1.
Press and release the Power button to
index to the next position. 3 5 1 will remain,
and the fourth position will be blinking.
Use the
s
or
t
buttons to select 0.
Enter Configuration Pass Code
t
s
Zero/Clear
Memory
*
Gauge Configuration—User or Factory
Upon successful pass code entry, the upper
display will be blank, and the lower section
will display
USER
.
With User selected, the gauge configuration
can be modified as described in the
following sections.
Press and release the
t
button if User is
not displayed. The lower display will indicate
USER
.
Press and release the Power button to
continue with configuration.
If Factory (
FCTRY)
is selected, the user
configuration will be replaced by the
configuration as it left the factory.
To select Factory, press and release the
s
button. The lower display will indicate
FCTRY
.
Press and release the Power button to restore
the factory configuration and restart the gauge.
t
s
Zero/Clear
Memory
*
USER
USER
FCTRY
then
- or -
t
s
Zero/Clear
Memory
*
t
s
Zero/Clear
Memory
*
*
0
I
5
3
CFGPC
After the pass code is entered press and
release the Power button to proceed with
configuration procedures.
Note: If an incorrect pass code is entered,
the gauge will return to the start of the pass
code entry sequence.
t
s
Zero/Clear
Memory
*
4
Read these instructions before using the gauge. Configuration
may be easier before installation.
4
These products do not contain user-serviceable parts.
Contact us for repairs, service, or refurbishment.
4
Gauges must be operated within specified ambient
temperature 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 applica-
tion.
4
Use fittings appropriate for the pressure range of the gauge.
4
Due to the hardness of 316 stainless steel, it is
recommended 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 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 diaphragm may cause silicone oil inside sensor to
react with oxygen.
T
he range next to the gauge model number table on page 1
indicates the default range when the gauge was ordered.
Engineering units may be changed to any of
those listed in the same row as shown in the
table on page 1.
With the gauge in the user configuration
mode, the upper display will be blank with
the engineering units in the lower display.
Use the
s
and
t
buttons to navigate
through the list of engineering units. Available
engineering units depend on the sensor range.
When the desired units are displayed, press
and release the Power button to save your
selection and move to the next parameter.
Engineering Unit Selection
t
s
Zero/Clear
Memory
*
INHG
t
s
Zero/Clear
Memory
*
*
PSIG
- or -
WARNING:
This product can expose you to chemicals including
lead, nickel and chromium, which are known to the State of
California to cause cancer or birth defects or other reproductive
harm. For more information go to www.P65Warnings.ca.gov
