Perfect Prime AR1890 v3 User manual

Digital Pressure Gauge
AR1890 v3
Instruction Manual

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CONTENTS
P. 1
1. INTENDED USE
2. FEATURES
3. SPECIFICATIONS
4. RANGE SPECIFICATIONS
5. DISPLAY
6. METER DESCRIPTION
7. KEY OPERATION
8. BASIC OPERATION
9. BATTERY REPLACEMENT
10. TROUBLESHOOTING
11. CONVERSIONS

1. INTENDED USE AND FEATURES
P. 2
This instrument can measure the air pressure of the single pipe or the
pressure dierence between two detection ports. It oers 12 units of
measurement and advanced features like DATA HOLD, MIN-MAX- AVG
mode, ZERO, DATA RECORD, and AUTO POWER OFF. It is widely used in
natural gas pipelines, air-conditioning refrigeration, and ventilation
systems, mechanical hydraulics, plastic molding, biopharmaceutical
molding, mining area pressure detection, gas, liquid, and production
industrial equipment pressure detection.
Thank you for purchasing this digital manometer. We recommend that
you read and follow the manual care fully before use.
• 12 selectable units of Measurement
• Pressure dierence measurement
• Maximum / minimum / average data mode
• Data hold function
• Data storage function with a time stamp
• Zero function
• Low battery alarm
• Automatic power o function
• Over range indicator: Hi, Lo
• USB for power supply
FEATURES

3. SPECIFICATIONS
P. 3
Pressure Range
Unit of Measure
Accuracy
Repeatability
Linearity/Hystersis
Data Storage
Response Time
Out of Range Indicator
Automatic Power Off Conditions
Operating Conditions
Storage Conditions
Power Supply
Dimensions
Weight
±2 .000 Psi
Pa , psi , kgfcm2, bar, inH2O, ftH2O,
inHg, mmHg , ozin2, mbar , cmH2O,
and kPa
±0.3% FSO (a t 25°C )
±0.2% (Max±0.5%FSO)
±0.29% FSO
99 groups
0.5s
Hi or Lo
No operation for 10 mins
O to 50°C (32 to 122°F)
-10 to 60°C ( 14 to 140°F)
1.5V x 3pcs AAA batteries
165 X 70 X 33mm
150g (without batteries)

P. 4
4. RANGE SPECIFICATIONS
Function
Pa
psi
kgfcm²
bar
inH2O
ftH2O
inHg
mmHg
ozin2
mbar
cmH2O
kPa
Range
±9999
±2.000
±0.140
±0.137
±55.40
±4.613
±4.070
±103.4
±32.00
±137.8
±140.6
±13.78
Resolution
1
0.001
0.001
0.001
0.01
0.001
0.001
0.1
0.01
0.1
0.1
0.01

5. DISPLAY
P. 5
7. Auto power o disable
Indicator
8. Elapsed Time
9. Total number of records
10. Reading Display
11. Pressure Units
1. Data Hold Function
2. Dierential Pressure Mode
3. Max Indicator
4. Min Indicator
5. Avg Indicator
6. Low Battery Indicator

6. METER DESCRIPTION
P. 6
1. P1 Tube Connector (+)
2. P2 Tube Connector (-)
3. LCD Display
4. BACKLIGHT Button
5. DIF Button
6. UN T Button
7. MODE Button
8. HOLD Button
9. Power on/o Button
10. Hanging Hole
11. Battery Cover
12. USB Socket (for power supply only)

7. KEY OPERATION
P. 7
1. Power on/off Button
•When the power r is o, short press the button to tu rn the meter on.
•When the powe is on,
In order to conserve battery life, the meter has an automatic power o
function (without operation after 10 minutes). The auto power o disable
indicator will appear on the display when the auto power o function
is disabled. The meter will now remain on until the user turns it o or until
the battery runs out.
a. Short press the button to disable and enable the automatic power
o function.
b. Press and hold the button to turn o the meter.
Backlight buttton
Mode buttton
Unit buttton
DIF buttton
Hold buttton
Power buttton
Note that the Auto Power OFF function will be reactivated the next time
the meter is turned o and then on.

MAX MODE - When in this mode, only the highest (MAX) reading
recorded since the button was rst pressed will appear on the
reading display.
MIN MODE - When in this mode, only the lowest (MIN) reading
recorded since the button was rst pressed will appear on the
reading display.
AVG MODE - When in this mode, only the average (AVG) reading
recorded since the button was rst pressed will appear on the
reading display.
7. KEY OPERATION
P. 8
2. BACKLIGHT BUTTON
a. Short press the button to store the current measured pressure
value with a time stamp (can store up to 99 groups).
b. Press and hold the button to open/close the backlight.
3. HOLD BUTTON
a. Short press the button to freeze/release the displayed reading.
b. Press and hold the button to clear the stored data.
b. Press and hold the button to view the stored data, the no.
indicator will appear on the right-hand comer of the LCD display, to
indicate that it is in the data review mode. Press the or button
to view the data one by one.
c. Press and hold the button again to exit the data review mode.
4. MODE BUTTON
a. Short press the button to enter the MAX, MIN, and AVG mode.

7. KEY OPERATION
P. 9
5. DIF BUTTON
a. Short press the button to enter P1 and P2 dual channel
dierential pressure mode. DIF icon will appear on the display.
b. Short press the button again to exit dierential pressure mode.
c. Press and hold the button to clear the drift zero. (The data before
measurement does not return to zero and without ttings attached
to the meter) .
6. UNIT BUTTON
a. Short press the button to select the desired measurement unit.
This meter oers up to 12 pressure units.
b. Press and hold the button to enter the time setting mode.
c. While on the time setting mode, short press on the button to exit
the time setting mode or save the setting.
7. OVER RANGE
will appear on the display when the pressure reading is
over the Maximum range.
will appear on the display when the pressure reading is
below the Minimum range.