TRIPLETT DPR302 Differential Pressure Manometer User Manual
- June 6, 2024
- TRIPLETT
Table of Contents
User Manual
DPR302/DPR305
DPR302 – 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
Buttons
The meter has six buttons.
- BACKLIGHT
- DIF
- HOLD
- ZERO
- UNITS
- REC
- ON/OFF
Display Description
- Hold Function
- Differential Mode
- Primary Data screen
- Auto Power Off
- Record Mode
- MAX/MIN/AVG
- Low Battery indicator
- Pressure Unit indicator
- Relative Time Clock
Operation
Power Press the ON/OFF button to turn the 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 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.
- 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.
- 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.
- Press the REC button to display the minimum MIN reading with the relative time.
- Press the REC button to display the average value AVG reading with the relative time.
- Press the REC button again to continue recording MAX/MIN /AVG measurements.
- 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
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
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