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OM-PR-Series
Submersible Pressure/Temperature Data Loggers
Models In Stock
- Temperature Range: -20 to 85°C (-4 to 185°F)
- Pressure Ranges: 35, 150, 350, 550, 2000, 5800 psia
- Vacuum Ranges: 760 and 380 Torr
- 150% Over Range Protection
OM-PR-Series
From
$
688.03
Models In Stock
Product Overview
- Approvals CE
- Battery life up to 5 yr
- Battery Size and Type 3.6V Li-ion
- Calibration Accuracy Temperature : ±2 °C, Pressure : ±1%
- Control Output 2 Programmable Alarms
- Data Interface USB
- Diameter 50 mm
- Height 56 mm
- Materials 316L Stainless Steel
- Measurement Type Pressure, Temperature
- Measuring Temperature Range, Max 85 °C
- Measuring Temperature Range, Min -20 °C
- Memory 32,000 or 64,000 (depends on setup)
- Millivolt Range N/A
- Number of Measurements 2
- Operating Temperature, Max 85 °C
- Operating Temperature, Min -20 °C
- Measurement Pressure, Min 0 psi
- Pressure Repeatability ±0.05%
- Process Connection Size 1/4 in
- Process Connection Type NPT Male
- Proof Pressure 150% Full Scale
- Record Trigger Note Record Trigger: Two independent triggers Multiple Trigger Modes: Instantaneous, button control, on alarm, time and date (Start and Stop), day of week Record Mode: Fill to end of memory or cyclic, number of samples and time duration
- Sampling Rate 0.5 Hz (2 seconds between updates)
- Sampling Rate Note User configured 1 every 2 seconds to 1 every 24 hours
- Series ID OM-PR-Series
- Software Windows 2000/XP/Vista/7 and 8 (32-bit and 64-bit)
- Supply Power Type Battery
- Weight 900 g
Supported Applications
The OM-PR Series is a family of battery-powered, stand-alone, water-tight pressure and temperature data loggers. Each unit is a compact, self-contained recorder that captures up to 64,000 samples of pressure and/or temperature, making it well suited to unattended field studies where a cabled instrument is impractical.
Because the logger is housed in a rugged submersible 316L stainless steel enclosure rated IP67, it can be deployed directly in demanding, wet, and submerged environments. A ¼ NPT male process connection lets it thread into pipes, tanks, and test fittings, and an optional garden hose adaptor supports water-system work. Vacuum-range models extend the same platform to sub-atmospheric measurement.
Each logger can be set to record both pressure and temperature or a single parameter to maximize storage, and is configured with the included Windows software over a direct USB connection. Two independent triggers and multiple trigger modes — instantaneous, button control, on alarm, time and date, and day of week — let the device start and stop logging automatically around an event of interest.
Operating Conditions & Performance
The OM-PR Series measures temperature over -20 to 85°C (-4 to 185°F) with a resolution of 0.1°C (0.1°F). Temperature accuracy is ±1°C, 0 to 50°C (32 to 122°F) and ±2°C, -20 to 85°C (-4 to 185°F).
On the pressure side, accuracy is ±1% with a resolution of 0.01 psia and repeatability of ±0.05%. Each sensor includes 150% Over Range Protection, rated to 1.5 times maximum, to guard against transient overpressure.
Recording behavior is highly configurable:
- Sample rate: user-configured from 1 every 2 seconds to 1 every 24 hours.
- Number of samples: 32,000 or 64,000, depending on setup.
- Record mode: fill to end of memory or cyclic, by number of samples and time duration.
- Alarms: 2 user programmable alarms, high or low.
Power is supplied by an included 1/2AA, 3.6V, 1.2Ah lithium battery, and the replaceable internal battery offers up to a 5-year life, rated up to 5 years at a 1 minute sample rate. Communication is by direct USB connection, and the included software runs on Windows 2000/XP/Vista/7 and 8 (32-bit and 64-bit). The enclosure measures 5.6 H x 5 cm dia (2.19 x 1.95") and weighs 0.9 kg (2.0 lb). The series is CE marked, an optional NIST calibration certificate is available, and OMEGACARE extends the standard 1-year warranty to a total of 2 years.
Configuration Options
All OM-PR loggers share the same submersible 316L stainless steel body, ¼ NPT male port, temperature performance, USB configuration, and recording feature set. The models differ chiefly in their calibrated pressure or vacuum range and in whether they ship with a NIST calibration certificate, following the model number structure OM-PR — Pressure Range — NIST Calibration.
Positive-pressure models are offered across an ascending ladder of full-scale ranges:
- OM-PR35 — 0 to 35 psia.
- OM-PR150 — 0 to 150 psia.
- OM-PR350 — 0 to 350 psia.
- OM-PR550 — 0 to 550 psia.
- OM-PR2000 — 0 to 2000 psia.
- OM-PR5800 — 0 to 5800 psia.
Vacuum-range models cover sub-atmospheric measurement: OM-PR760V for the 760 Torr vacuum range and OM-PR380V for the 380 Torr vacuum range. Every range is available with an optional NIST calibration certificate ordered as the matching -NIST model, which does not change the measurement capability but adds documented, traceable calibration.
Key Product Differences
The ordering lineup pairs each pressure or vacuum range with an optional NIST-certified counterpart:
- OM-PR35 / OM-PR35-NIST — pressure/temperature data logger, 35 psia range.
- OM-PR150 / OM-PR150-NIST — 150 psia range.
- OM-PR350 / OM-PR350-NIST — 350 psia range.
- OM-PR550 / OM-PR550-NIST — 550 psia range.
- OM-PR2000 / OM-PR2000-NIST — 2000 psia range.
- OM-PR5800 / OM-PR5800-NIST — 5800 psia range.
- OM-PR760V — 760 Torr vacuum range.
- OM-PR380V / OM-PR380V-NIST — 380 Torr vacuum range.
Supporting replacement parts and accessories are available for every model:
- OM-PR-BATT — replacement 1/2AA, 3.6V lithium battery.
- OM-PR-ADAPTOR — garden hose adaptor (brass coupling).
- OM-PR-SEAL — replacement O-ring seal (pack of 3).
- OM-PR-COVER — locking anti-theft cover.
- OM-PR-USB-CABLE — replacement 0.9 m (3') USB cable.
PDFs & Manuals
Software & Drivers
Show Ratings & Reviews
Rated 5 out of
5
by
Mark H from
Easy to use and accurate
I installed one of these data loggers for an Engineering firm on an job and was impressed with the unit. I had occasion to need one and purchased one of my own. Easy ordering process and quick shipping. Very Satisfied. I installed it at my office as a test run and was able to set up the device and gather data easily. It is currently installed on a job of mine and the results will provide my client with much needed information at a very reasonable cost. Thanks!
Date published: 2017-06-14
Rated 5 out of
5
by
Anonymous from
Heat exchanger pressure trackinh
This was purchased to monitor pressures on a heat exchanger that runs at 450f degrees with the cooling adapter installed it worked great it data logged as it should to help diagnose a problem we were having with gasket failures. I would definitely purcase again.
Date published: 2021-02-13
Rated 5 out of
5
by
Ken P from
Quality Product
Unlike the competition, this pressure logger is designed and built to last without issues. Quality product, easy to use and a great value.
Date published: 2018-07-10
Is this product suitable for Class 1 Div. 1 or Class 1 Div. 2 explosion proof areas?
Thank you for your question. Unfortunately, it is not.
Date published: 2021-06-02
Does this work with gas pressure and temperature, or just liquid?
Thank you for your question. We will require more information to help on this question, please email the DAS team at DAS@OMEGA.COM
Date published: 2023-08-22
Is this device come calibrated with a certificate and do you offer calibration of the device?
Thank you for your question. The logger is supplied with a Cal-1 ( Certificate of Conformance).
Date published: 2022-02-18