TRIPLETT DPR302 Differential Pressure Manometer User Manual

User ManualDPR302/DPR305DPR302 – Differential Pressure Manometer (2PSI)DPR305 – Differential Pressure Manometer (5PSI)

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

ButtonsThe meter has six buttons.

  1.  BACKLIGHT
  2. DIF
  3. HOLD
  4. ZERO
  5. UNITS
  6. REC
  7. ON/OFF

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 the power on or off. The meter willperform a short self-test when turned on. The meter defaults to the setting used during the last operation.

Zero Adjust and OffsetBefore 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 displayed.

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 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 a relative timestamp.

  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.
  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, 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.

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

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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 it separately.

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.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.

Specifications

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

Function Range Resolution Function Range Resolution
inH2O 55.40 0.01 ozin² 32.00 0.01
psi 2.000 0.001 ftH2O 4.612 0.001
mbar 137.8 0.1 cmH2O 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

DPR305

Function Range Resolution Function Range Resolution
inH2O 138.4 0.1 ozin² 80.00 0.01
psi 5.000 0.001 ftH2O 11.53 0.01
bar 344.7 0.1 cmH2O 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

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 that 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 Triplettwww.triplett.com

References

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