Triplett Test Equipment & Tools DPR302 User manual

User Manual

DPR302/DPR305

DPR302 - Differential Pressure Manometer (2PSI)
DPR305 - Differential Pressure Manometer (5PSI)

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Introduction

Thank you for selecting the Triplett DPR302 Differential Pressure
Manometer. This device measures gauge and differential pressure in
the range of ±2.000 psi. The DPR302 offers eleven (11) units of
measure (user selectable by front panel pushbutton) and has a
differential input that uses convenient quick‐disconnect fittings.
Advanced features include DATA HOLD, MIN‐MAX‐AVG RECORD
mode, ZERO/OFFSET, AUTO POWER OFF

Description

Buttons

The meter has six buttons.

1. BACKLIGHT

2. DIF

3. HOLD

4. ZERO

5. UNITS

6. REC

7. ON/OFF

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Display Description

1. Hold Function

2. Differential Mode

3. Primary Data screen

4. Auto Power Off

5. Record Mode

6. MAX/MIN/AVG

7. Low Battery indicator

8. Pressure Unit indicator

9. Relative Time Clock

Operation

Power

Press the ON/OFF button to turn power on or off. The meter will
perform a short self-test when turned on. The meter defaults to
the setting used during the last operation.

Zero Adjust and Offset

Before use and without fittings attached to the meter, press the

ZERO button for more than 2 seconds to zero the meter .The meter

will reset and display“oooo ”
from right to left. 0.000 will be display.
If it is desired to offset the meter and display, press the DIF

button while taking a measurement Subsequent reading will be
the difference between the current measurement and the

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measurement that was on the display when the DIF button was
pressed.

Data Hold

Press the HOLD button momentarily to freeze the displayed
reading. The ‘HOLD’ icon will appear on the upper left-hand side

of the display. If the pressure value is over the range, error codes
will show on the screen.

Press the HOLD button again to return to normal operation.

Record

The MAX/MIN mode allows the user to view only the highest
(MAX) , lowest (MIN)or average (AVG) readings with relative time
stamp.

1. Press the REC button once and REC appears on the display (All

other functions are locked out except for Power & Backlight).
The relative time clock also appears in the secondary display
and starts counting.

2. Press the REC Button again and MAX appears on the display

.The display is now showing the maximum pressure and relative
time that it was recorded.

3. Press the REC button to display the minimum MIN reading

with the relative time.

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4. Press the REC button to display the average value AVG

reading with the relative time.

5. Press the REC button again to continue recording MAX/MIN

/AVG measurements.

6. To exit the MIN/MAX/AVG mode, press the REC button for

3 seconds to return to normal operation.

Backlight Display

Press the Backlight button to turn on the backlight.

It will remain on for 40 seconds.

Automatic Power Off (APO)

The meter will automatically shut off after 20 minutes to

conserve battery life. To disable Auto Power Off , hold down the
HOLD button and turn on the meter on , An “n” will appear in the
display indicating that Auto Power Off mode is disabled. The meter
will return to normal operation when it is turned off.

Units

Press the Unit button momentarily and the meter will cycle
through the 11 available units of measure as indicated by the
cursor on the bottom of the display.

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Error Codes

An error message will appear on the display if the meter fails an
internal diagnostic test. And it will freeze all the buttons.

 Err.1: Pressure value is over the range.
 Err.2: Pressure value is below the range.
 Err.3: DIF function, the differential pressure value is over range.
 Err4: DIF function, the differential pressure value is below

range.

BATTERY REPLACEMENT

When the battery is LOW, “BAT” will appear on the LCD. Replace
the battery.

Battery Safety Notes: Please dispose of batteries responsibly; never
dispose of batteries in a fire, batteries may explode or leak. If the meter
is not to be used for 60 days or more, remove the battery and store
separately.

Disposal: Do not dispose of this instrument in household waste. The user is
obligated to take end‐of‐ life devices to a designated collection point for
the disposal of electrical and electronic equipment.

Never dispose of used batteries or rechargeable batteries in
household waste.

As consumers, users are legally required to take used batteries
to appropriate collection sites, the retail store where the
batteries were purchased, or wherever batteries are sold.

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Specifications

Function

Range

Resolution

Function

Range

Resolution

inH20

55.40

0.01
ozin2

32.00

0.01
psi

2.000

0.001

ftH20

4.612

0.001

mbar

137.8

0.1

cmH20

140.6

0.1

kPa

13.79

0.01
kgcm2

0.140

0.001
inHg

4.072

0.001

bar

0.137

0.001

mmHg

103.4

0.1

Function

Range

Resolution

Function

Range

Resolution

inH20

138.4

0.1
ozin2

80.00

0.01
psi

5.000

0.001

ftH20

11.53

0.01

mbar

344.7

0.1

cmH20

351.5

0.1

kPa

34.47

0.01
kgcm2

0.352

0.001
inHg

10.18

0.01

bar

0.345

0.001

mmHg

258.6

0.1

Display Dual LCD
Accuracy ±0.3%FSO ( 77°F/25 °C )
Repeatability ±0.2% (Max.+/ -0.5% FSO)
Linearity/Hysteresis ±0.29% FSO

Pressure Range 2 psi (DPR302) 5 psi (DPR305)
Maximum Pressure 10psi(DP302)/20psi (DP305)
Response Time 0.5 Seconds typical
Low Battery Indicator Yes
Over range Indicator Err.1
Under range Indicator Err.2
Operating Conditions 32°F to 122°F ( 0 to 50°C)
Storage Conditions 14 to 140°F ( -10 to 60°C)
Power Supply (3)1.5V “AAA” batteries

DPR302

DPR305

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Warranty

Triplett / Jewell Instruments extends the following warranty to the original purchaser of
these goods for use. Triplett warrants to the original purchaser for use that the products
sold by it will be free from defects in workmanship and material for a period of (1) one
year from the date of purchase. This warranty does not apply to any of our products
which have been repaired or altered by unauthorized persons in any way or purchased
from unauthorized distributors so as, in our sole judgment, to injure their stability or
reliability, or which have been subject to misuse, abuse, misapplication, negligence,
accident or which have had the serial numbers altered, defaced, or removed.
Accessories, including batteries are not covered by this warranty

Copyright © 2021 Triplett

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