The DPGM409 digital differential pressure gauge from OMEGA incorporates a rugged 316SS enclosure designed for marine and washdown applications with a precision 0.08% accuracy pressure transducer and 316L SS wetted parts and body. The result is a digital pressure gauge that is extremely durable.
This differential pressure digital gauge functions perfectly with hydraulic oil, air or water as well as several other fluids.
- Hi and lo alarms standard
- Easy to read 25 mm backlit LCD display
- 5-Point NIST traceable calibration
- Wet/wet differential pressure measurement
- High 0.08% accuracy
- MIN/MAX/AVG reading
- Bar graph on display
- IP65 (NEMA-4X) enclosure
- Battery powered with extended battery life
- G¼ pressure connections standard - others available
- User selectable analogue output 0 to 5 Vdc, 0 to 10 Vdc or 4 to 20 mA
- Wireless transmitter option sends reading to remote location and comprises of charting and data logging software
Specifications
The key specifications of the DPGM409 digital differential pressure gauge are as follows:
- Accuracy (Combined Linearity, Hysteresis and Repeatability): ±0.08% BSL
- Storage Temperature: -40 to 82 °C
- Operating Temperature: -18 to 66 °C
- Thermal Effects (Over Operating Range):
- Zero Balance:
- Ranges 25 mb to 70 mb: ±1% span
- Ranges >70 mb: ±0.5% span
- Span Setting:
- Ranges 25 mb to 70 mb: ±1% span
- Ranges >70 mb: ±0.5% span
- Minimum Resistance Between Transducer Body and Any Wire: 100MO @ 50 Vdc
- Pressure Cycles: 1 million minimum
- Long Term Stability (1-yr.): ±0.1% FS typical
- Analogue Output: User selectable 0 to 5 Vdc, 0 to 10 Vdc or 4 to 20 mA (external 24 Vdc power supply required).
Set jumper to Select Current or Voltage: Software selection of 0 to 5 Vdc, 0 to 10 Vdc, or 4 to 20 mA
Bidirectional ranges have a unidirectional analogue output equal to their full span; i.e. -15 to +15 psi = 0 to 10 Vdc.
Analogue output is independently scalable
- Analogue Output Cable: 2.7 m with ferrite core (included)
- Analogue Output Accuracy: 0.08% typical (0.15% maximum in RF field @ 10V/m)
- Line/Static Pressure: 500 psi maximum applied to both sides simultaneously
- Proof Pressure (differential):
- 25 mb: = 10 times range
- 70 mb: = 6 times range
- 170 mb to 50 Bar: = 4 times range
- Hi-Side Containment Pressure (Differential):
- 25 to 350 mb: To 1000 psi
- 1 to 50 bar: To 3000 psi
- Display: 4-digit LCD with user Selectable backlighting, (9999 count) 25 mm character height
- Sample/Display Range: User selectable from 0.38 to 30 seconds (preset to 1/second)
- Computer Interface: USB connection for set-up, cable included
- Pressure Connection: G ¼ male
- Power: One 3.6V lithium 8.4 Ah capacity (C cell) included (two included with wireless option) (replacement battery model no. BATT-C-3V)
- Battery Life (Typical): Up to 4-years
- Enclosure Material: 316 Stainless Steel and ABS centre gasket
- Enclosure Finish: Electropolished
- Enclosure Environmental Rating: Weatherproof, IP65
- Sensor Wetted Parts: 316L stainless steel
- Dimensions:
- Display: 115 D x 89 W x 74 mm H
- Sensor: 72 to 89 mm L below display, 80 mm wide
- Weight: 1 kg typical depending upon configuration
- Front Panel Functions:
- Backlight: Manually turns backlight on/off
- Min/Max: Recalls min/max values
- Zero/Clear: Zeros display or clears min/max
- Software Settings (via USB)
- Update Rate: 4 options, 10, 5, 2, 1 times per second
- Units: psi, inHg, inH2O, bar, mbar
- Lock: Allows the lock-out of front panel functions
- Alarms: User selectable “High” and “Low” alarm limits (open collector)
- Backlight: On/Off, 10 seconds, 30 seconds, 1 minute, 5 minute
- Wireless Transmitter (Optional): Channel number, transmission rate, alarms, sensor offset, chart recording, data logging
- Calibrate: Zero and Span
- Overrange Indication: “_ _ _ _”
Wireless Option Specifications
- Transmit Sample Rate: User programmable from 1 sample/2 min to 1 sample/2 sec
- Radio Frequency (RF) Transceiver:
- Carrier: ISM 2.4 GHz
- RF Output: 10 dBm (10 mW)
- Range of RF Link: Up to 120 m outdoors (line of sight); Up to 40 m indoors/urban
- Included Software: Requires Windows® 7 (32 bit); XP, Vista
- Data Transmission to Host: Pressure reading, ambient temperature reading, RF transmit strength and battery level