Seametrics PT2X Pressure & Temperature with Datalogging

Seametrics PT2X Pressure and temperature sensor

The Seametrics PT2X Smart Sensor is an integrated data logger and pressure/temperature sensor and is ideal for monitoring groundwater, well, tank, and tidal levels, as well as for pump and slug testing. This sensor networks with all of the Seametrics Smart Sensor family.

This industry-standard digital RS485 interface device records up to 520,000 records of pressure/level, temperature, and time data, operates with low power, and features easy-to-use software with powerful features. Constructed with 316 stainless steel or titanium, PTFE, and fluoropolymer, this sensor provides high-accuracy readings in rugged and corrosive field conditions.

Two replaceable internal AA batteries power the PT2X. (Auxiliary power supplies are available for data-intensive applications.) The unit is programmed using Seametrics’ easy-to-use Aqua4Plus 2.0 control software. Once programmed the unit will measure and collect data on a variety of time intervals. Several PT2Xs, or a combination of PT2Xs and other Seametrics Smart Sensors, can be networked together and controlled directly from a single computer.

While most will use the PT2X with our free, easy-to-use Aqua4Plus 2.0 software, it is by no means limited to that software. You can use your own Modbus® RTU or SDI-12 software or logging equipment to read measurements, thus tying into your existing telemetry and control systems.

Feature :

• Measures & records pressure/level and temperature
• Low power
• Modbus® RTU (RS485) and SDI-12
• ±0.05% FSO typical accuracy
• Thermally compensated
• Small diameter — 0.75” (1.9 cm)
• 520,000 records in non-volatile memory
• Barometric compensation utility for use with absolute sensors
• Free, easy-to-use Aqua4Plus 2.0 software

APPLICATIONS :

• Pump and slug tests
• Stormwater runoff monitoring
• Well, tank, tidal levels
• River, stream, and reservoir gauging
• Wetland monitoring
• Resource administration

 

Specifications :

Housing & Cable

Weight

0.8 lb. (0.4 kg)

Body Material

Acetal & 316 stainless or titanium

Wire Seal Material

Fluoropolymer and PTFE

Cable

Submersible: polyurethane, polyethylene, or ETFE (4 lb./100 ft., 1.8 kg/30 m)

Desiccant

1-3 mm indicating silica gel

Field Connector

Standard

Temperature

Operating Range

Recommended: -15 ̊ to 55 ̊C (5 ̊ to 131 ̊F).  Requires freeze protection kit if using pressure option in the water below freezing.

Storage Range

Without batteries: -40 ̊ to 80 ̊C (-40 ̊ to 176 ̊F)

Power

Internal Battery

Two replaceable lithium ‘AA’ batteries - Battery life: 18 months at 15 min. polling interval (may vary due to environmental factors)

Auxiliary

12 Vdc - Nominal, 9-15 Vdc - range

Communication

Modbus®

RS485 Modbus® RTU, output=32bit IEEE floating point

SDI-12

SDI-12 (ver. 1.3) - ASCII

Logging

Memory

4MB - 520,000 records

Logging Types

Variable, user-defined, profiled

Logging Rates

8x/sec maximum, no minimum

Baud Rates

9600, 19200, 38400

Software

Complimentary Aqua4Plus 2.0

Networking

32 available addresses per junction (Address range: 1 to 255)

File Formats

.a4d and .csv

Output Channels

Temperature

Depth/Level

Element

Digital IC onboard

Silicon strain gauge transducer, 316 stainless or Hastelloy

Accuracy

±0.5°C — 0° to 55°C (32 ̊ to 131 ̊F) ±2.0°C — below 0°C (32 ̊F)

±0.05% FSO (typical, static) ±0.1% FSO (maximum, static) (B.F.S.L. 20 ̊C)

Resolution

0.1 ̊C

0.0034% FS (typical)

Units

Celsius, Fahrenheit, Kelvin

PSI, FtH₂O, inH₂O, mmH₂O, mH₂O, inH₂O, cmHg, mmHg, Bars, kPa

Range

-15 ̊ to 55 ̊C (5 ̊ to 131 ̊F)

Gauge

PSI: 1¹, 5, 7, 15, 30, 50, 100, 300 FtH₂O: 2.31, 12, 35, 69, 115, 231, 692 mH₂O: 0.71, 3.5, 5, 10.5, 21, 35, 70, 210

Absolute²

PSI: 30, 50, 100, 300 FtH₂O: 35, 81, 196, 658 mH₂O: 10, 24, 59, 200

Compensated

---

0 ̊ to 40 ̊C (32 ̊ to 104 ̊F)

Max operating pressure

1.1 x full scale

Overpressure protection

3x full scale up to 300psi

Burst pressure

1000 psi (approx. 2000 ft or 600 m)

Environmental

IP68, NEMA 6P

*Specifications are subject to change. Please consult our website for the most current data. Modbus is a registered trademark of Schneider Electric.
1 ±0.25% accuracy FSO (max) at this range
2 The depth range for absolute sensors has 14.7 PSI subtracted to give the actual depth allowed.

Source: Seametrics PT2X Pressure & Temperature with Datalogging

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