Specifications
Pressure Ports: Two tube connectors for 4mm
(3/16 inch) I.D. flexible tubing
Units of Measure: inWC and mbar
Accuracy:
±0.02inWC, ±(0.00inWC to 2.00inWC);
±1.5% FS, ±(2.00inWC to 60.0inWC);
±0.05mbar, ±(0.00mbar to 5.00mbar);
±1.5% FS, ±(5.00mbar to 150.0mbar);
Resolution: 0.1 or 0.01 depending on resolution
selected (If 0.01 resolution is selected you must
divide displayed value by 10 for actual value).
Measurement Range:
inWC: -60.0 to 60.0
mBar: -150.0 to 150.0
Operating environment:
32ºF (0°C) to 122ºF (50°C), under 75%RH
Compatible media: Dry, non-corrosive gases
Battery: Single standard 9-volt battery, NEDA
1604, JIS 006P, IEC 6F22.
Battery Life: 100 hours with low battery LED
indicator on accessory head.
Overrange: “OL” or “-OL” is displayed.
Auto power off: 15 minutes
Dimensions: 131mm(~5 3/16”)(H) x 67mm(~2
7/16”)(W) x 32mm(~1 1/4”)(D)
Weight: approximately 154g (~1/2 pound)
including battery
Resolution Modes (0.1 and 0.01)
There are two modes of resolution on the
ADMN2. For most applications, 0.1 mode will be
fine to use. When measuring low pressures, 0.01
will likely be the best mode for meaningful testing.
The most common circumstance for 0.01 mode is
measuring static pressure across a blower.
Only when using 0.01 mode, the display of your
meter will show the true measurement X 10. So if
the true measurement is 0.08, your meter will show
0.8. This is done to optimize resolution.
Warranty
The product is warranted to the original purchaser against defects in material or workmanship for a
period of one (1) year from the date of purchase.
During the warranty period, Fieldpiece Instruments
will, at its option, replace or repair the defective unit.
This warranty does not apply to defects resulting
from abuse, neglect, accident, unauthorized repair,
alteration, or unreasonable use of the instrument.
Any implied warranty arising out of the sale of
Fieldpiece's products including but not limited to
implied warranties of merchantability and fitness for
purpose are limited to the above. Fieldpiece shall
not be liable for incidental or consequential damages.
Service
Return any defective ADMN2 to Fieldpiece for
warranty service along with proof of purchase.
Contact Fieldpiece for out of warranty repair
charges.
Dual-
P
ManomMae
Acces
ces
sory
Head
0.1
E
ME
0.01
(LCD/10)
Resolu
tion
tion
Dual Port
Differential
Manometer
Accessory Head
Model: ADMN2
OPERATOR’S MANUAL
Description
The ADMN2 is a portable dual port manometer
accessory head. The ADMN2 is capable of taking
gas pressure as well as static pressure. The
ADMN2 also has a zero adjust. The auto-power-off
function conserves battery life, but can be disabled
for data logging if desired.
The ADMN2 will allow you to take gas pressure
between -60inWC and 60inWC. The ADMN2 can
measure P1 or P2 pressure readings or the difference between P1 and P2. The ADMN2 also has two
different measurement scales: inWC (inches of
water column) and mBar. Static pressure is possible
with the resolution of 0.01inWC or 0.01mBar.
Operation
1. Connect to COM and Volts jacks using any
Fieldpiece test leads with removable probe tips.
For Fieldpiece “stick-style” meters, EHDL1, or
DL3, slide the head directly over the meter.
2. Select the mVDC range.
3. Zero the ADMN2 by pressing the ZERO button
just before taking the pressure readings, while
at ambient pressure. This will zero both P1 and
P2.
4. Connect a single hose to get the gauge pres-
sure relative to the ambient or ZERO pressure.
5. Connect both hoses if you want to see relative
pressure, P1 minus P2.
6. Select P1, P2, or P1 - P2.
7. Select English (inches of water column) or
Metric (mBar) units.
8. To disable the auto-power-off, remove the rubber covering and flip the switch below. Autopower-off is helpful for conserving the battery;
but if you are data logging with Fieldpiece model
DL3, you will want to disable this feature.
9. If you are in an environment where the temperature is noticeably changing while you are taking
your reading, disconnect the meter from the
hoses and ZERO it relative to ambient pressure
before each reading.
Checking Gas Pressure on a Regulator
1. Screw the brass fitting into the pressure port on
the regulator.
2. Put unit into operation (i.e. turn on the furnace
and have furnace ignite, as if running it in normal operation.)
3. This will give you the pressure coming out of the
regulator.
4. If you suspect high or low inlet pressure into the
regulator, the manometer can hook into the inlet
port in the same manner it can connect into the
outlet port. If you have a dual-port manometer,
you can check both the inlet and the outlet
simultaneously and see the pressure drop
across the regulator.
5. See manufacturer's specification for the specifi-
cations on target inlet and outlet pressure for a
given regulator or piece of combustion equipment.
Field Pressure Calibration
Remove the rubber covering the ZERO button.
By pressing the ZERO button, both the P1 and P2
are zeroed to the ambient pressure. For this reason
the calibration should be done when both P1 and
P2 are disconnected from the hoses in order to
properly calibrate to ambient pressure.
Connect Your Way
EHDL1 LT series DL3 HS series
Gas pressure measurement
(0.1 resolution mode)
Static pressure across a blower
(0.01 resolution mode)
0.8mVDC / 10 = 0.08inWC
OFF
2000
ADMN2
Dual-Port
Manometer
Accessory
Head
P1
P2
P1-P2
ON
0.1
ENGLISH
METRIC
0.01
(LCD/10)
Lo Batt
Resolution
ZERO
AUTO
OFF
P1 P2
ADMN2
Dual-Port
Manometer
Accessory
Head
P1
P2
P1-P2
ON
0.1
ENGLISH
METRIC
0.01
(LCD/10)
Lo Batt
Resolution
ZERO
AUTO
OFF
P1 P2
ADMN2
Dual-Port
Manometer
Accessory
Head
P1
P2
P1-P2
ON
0.1
ENGLISH
METRIC
0.01
(LCD/10)
Lo Batt
Resolution
ZERO
AUTO
OFF
P1 P2
ADMN2
Dual-Port
Manometer
Accessory
Head
P1
P2
P1-P2
ON
0.1
ENGLISH
METRIC
0.01
(LCD/10)
Lo Batt
Resolution
ZERO
AUTO
OFF
P1 P2
v13
P1 P2
Dual-Port
Manometer
Accessory
Head
Resolution
(LCD/10)
P1-P2
P2
P1
ADMN2
ZERO
ON
Lo Batt
0.1
ENGLISH
0.01
METRIC
AUTO
OFF
0.1
0.01
P1 P2
(LCD/10)
Dual-Port
ON
Manometer
Accessory
Lo Batt
Head
0.1
ENGLISH
Resolution
0.01
METRIC
(LCD/10)
P1-P2
P2
P1
AUTO
ZERO
OFF
3.0 inWC
ADMN2
To Meter
3.0 mVDC
0.1
P1 P2
Dual-Port
ON
0.01
(LCD/10)
Manometer
Accessory
Head
Resolution
P1-P2
To Me ter
(LCD/10)
P2
P1
ADMN2
Lo Batt
0.1
ENGLISH
0.01
METRIC
AUTO
ZERO
OFF
0.8 mVDC
0.05
inWC
-0.03
inWC
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
RMA316 Manometer Adapter
Used for 5/16" pressure outlet ports.
1. Shut off main gas supply to furnace.
2. Move the gas valve switch to "OFF" position.
3. Use a 3/32" hex wrench to loosen the outlet
pressure tap screw. Rotate screw counterclockwise one revolution to open.
4. Connect the ADMN2 tubing to the smaller
(3/16") end of the adapter and the other (5/16")
end of the adapter into the of the adapter tube.
5. Slide the 5/16" adapter tube over the outlet
pressure boss (port) to seal. Overlap the pressure boss by at least 3/8" to prevent leakage.
Outlet Pressure
Tap Screw
Outlet
Pressure
Boss
Inlet Pressure
Tap Screw
Smaller end (3/16”) of the adapter
connects to ADMN2 tubing. Remove
the installed brass fitting from tube
so the adapter can be inserted.
Inlet Pressure
Boss
Adapter
(5/16” to 3/16”)
Adapter Tube
(5/16”)
More Products From Fieldpiece
Modular Expandability
Modular expandability is ability for accessory
heads and meters to change configurations to
match the various needs of an HVAC/R technician.
Accessory heads (the sensors) send out a mV
signal, which represents the value of the measurement, to whatever meter is attached to it. Heads can
attach directly to the top of a Stick meter, DL3 data
logger, or EHDL1. They can also plug into any meter
with mV ranges using ASLS2 leads.
Stick Meter
This is the heart of modular expandability. In addition to being a full functioning multimeter, any accessory head can be used with it.
Model HS36
Non contact voltage
Magnetic hanger
Autoranging
Backlight
Temperature
Volts, amps, ohms
Frequency
Microfarads
Includes:
HS36 Meter
ACH4 Current Clamp
ATB1 K-type TCouple
ADLS2 Deluxe Leads
ANC1 Case
Accessory Heads
Accessory heads are the sensors of multiple
parameters measured by technicians every day.
They plug into a mV range (depending on the head)
of a multimeter. The multimeter will display whatever the head is measuring. Instead of having to purchase and carry a separate instrument for each
parameter, a technician can use multiple heads and
a single multimeter to do the job.
Here are four of the many heads available:
AAV3 Air Velocity and Temperature
ARH4 Digital Psychrometer
AVG2 Digital Vacuum Gauge
AOX2 Combustion Check
Air Velocity
& Temperature
Head
English
READLOBATT
ON
LCDX
100
Average
(16sec)
Metric
Real
time
AAV3
AUTOOFF
English Metric
Ft/min M/s
KM/hrMPH
ºF ºC
OFF
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aaaaa
aaaaa
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ASP2 Static Pressure Probe
For accurate static pressure measurements.
1. Connect ASP2 to ADMN2 via hose.
2. Insert ASP2 into drilled or pre-existing 1/4” hole.
3. Use allignment arrow on the ASP2 to direct
probe into the air stream.
4. Read static pressure measurements from “stickmeter”, EHDL1 or record with DL3.
5. Remove probe and patch hole.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
CLAMP
300V
CAT.III
400A
AC Current
Clamp
!
1AAC / 1mVAC
400AAC MAX
ON
H
STABLE
LOBATT
ENGLIS
SH
t
ng
r ation
METRIC
R134A
SC
Refrige
Superhea
and Subcooli
R404A
Temp
SH orSC
Pressu re
T/C
l
Ca
Set
M
AT
ON
Lo Batt
BLE
STA
Combustion
Check
ASX24
GAS
OIL
Type
Fuel
AUTO
OFF
T/C
2
CAL
2
O
CO
°F
%
TEMP
%
°C
AOX2
ACH4
O-
F
AUT
OF
AirVelocity
&Temperature
Head
Eng
lish
Eng
Ft/min M/s
lish
Metri
c
Met
ºF ºC
ric
KM/hrMPH
OF
Real
F
time
AUT
OFF
O-
AAV3
ON
LCD
100
X
READLOBATT
Aver
(16sec)
age
AUTO OFF
ARH4
Combustion
Check
ON
Lo Batt
STABLE
GAS
Fuel Type
OIL
TEMP
%CO
2
%O
2
AUTO
T/C
°C °F
CAL
OFF
AOX2
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