Seametrics PT2X Pressure & Temperature with Datalogging

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, 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, 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
Over pressure protection		3x full scale up to 300psi
Burst pressure		1000 psi (approx. 2000 ft or 600 m)
Environmental		IP68, NEMA 6P