Seametrics T1 Submersible Temperature Smart Sensor

Offering both SDI12 and Modbus® interfaces, the Seametrics T1/T1Ris a smart choice for upgrading to digital and replacing your analog temperature sensors. The T1/T1R’s rugged construction of 316 stainless steel, fluoropolymer, and PTFE resists weathering and data interferences, making it safe for long-term deployment.

The T1 is easy to interface with SDI-12 recorders and can be daisy-chained on one cable up to 200 feet, making it a preferred choice for many environmental professionals with existing SDI-12 systems. The T1R is powered internally with two AA batteries.

Alternately it can be powered with an external auxiliary power supply for data-intensive applications. While most will use the T1R with our free, easy-to-use Aqua4Plus 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 systems and databases

Feature

• Measures temperature
• SDI-12 v1.3 and Modbus® RTU
• Recording (T1R) and non-recording (T1) versions
• Non-volatile memory (T1R)
• Small diameter— 0.75” (1.9 cm)
• 316 stainless, fluoropolymer, and PTFE construction
• Polyethylene, polyurethane, and ETFE cable options
• Easy export to spreadsheets and databases (T1R)
• Wireless connectivity

APPLICATIONS

• Rugged construction—can replace analog sensors
• Monitor temperature
  • Groundwater
  • Well
  • Tank
  • Tidal

Specifications

Housing & Cable	Weight	0.8 lb. (0.4 kg)
	Body Material	316 stainless
	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	T1: Optional, T1R: Standard
Temperature	Operating Range	Recommended: -5 ̊ to 70 ̊C (23 ̊ to 158 ̊F)
	Storage Range	Without batteries: -40 ̊ to 80 ̊C (-40 ̊ to 176 ̊F)
Power (T1)	Operating Voltage	9-16 Vdc (over-voltage protection: 24 Vdc)
	Supply Current	Reading: 3mA, Sleep: 250μA
	Protection	Electromagnetic & transient: IEC-61000 – 4-3, 4-4, 4-5, 4-6
Power (T1R)	Internal Battery	Two lithium ‘AA’ batteries – Expected battery life: 18 months at 15 min. polling interval (may vary do to environmental factors)
	Auxiliary	12 Vdc – Nominal, 6-16 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
Temperature	Element	Digital IC onboard
Output	Accuracy	±0.2 ̊C
	Resolution	0.06 ̊C
	Units	Celsius, Fahrenheit, Kelvin
Environmental		IP68, NEMA 6P