SDI-PT Submersible Pressure Transducer
Description
The digital (SDI-12) transducer consists of a piezoresistive sensor and a temperature sensor housed in a 316L stainless-steel case that can be submerged in most canals, wells, ponds, harbors, lakes, streams and tanks. An NTP fitting allows the SDI-PT to be used in closed-pipe applications.
It's fitted with a rugged Hytrel cable that remains flexible, even under harsh environmental conditions. The cable incorporates a vent tube to compensate for atmospheric pressure fluctuations. The vent tube terminates inside a desiccant box, which prevents water vapor from entering the inner cavity of the transducer.
- SDI-12 output suitable for use with any dataloggers that employ the SDI-12 standard, like the Axiom.
- Static accuracy of ±0.1% FS over a 0° to 60°C temperature range.
- Rugged stainless steel case that protects piezoresistive sensor.
- Fully temperature compensated.
- 24-bit A/D.
- Simultaneous 50/60 Hz rejection.
- Low power sleep state between measurements that reduces power consumption.
Specifications
Power requirements:
6 to 18 VDC
Power consumption:
Standby:
< 80 µA
Operating:
8 mA (1-second measurement) (40 mA maximum)
Measurement time:
<1.5 seconds
Outputs:
SDI-12 (version 1.3) 1,200 baud
Measurement ranges:
(range option is selected for each unit at time of purchase)
(range option is selected for each unit at time of purchase)
Pressure (psig) |
Pressure (kPa) |
Feet of fresh water |
|||
|---|---|---|---|---|---|
0 to 2.9
|
0 to 20
|
0 to 6.7
|
|||
0 to 7.25
|
0 to 50
|
0 to 16.7
|
|||
0 to 14.5
|
0 to 100
|
0 to 33.4
|
|||
0 to 29
|
0 to 200
|
0 to 67
|
|||
0 to 72.5
|
0 to 500
|
0 to 167
|
|||
0 to 145
|
0 to 1000
|
0 to 334.5
|
Accuracy:
±0.1% FS TEB*
Resolution:
0.0035% FS
Overpressure:
2 x pressure range
Operating temperature:
-10°C to 80°C
Compensated temperature:
0°C to 60°C
Temperature accuracy:
±0.2°C
Maximum cable length:
~1,500ft (457m) for one sensor connected to a single SDI port
Cable type:
5 conductor, 26 AWG, Hytrel jacket
Material:
Top cone:
Delrin
Body:
316L stainless steel
Dimensions:
Length:
8.4" (21.34cm)
Diameter:
0.84" (2.13cm)
Weight (no cable):
0.40 lbs (0.18 kg)
* Total ERROR Band (TEB) includes the combined errors due to nonlinearity, hysteresis, nonrepeatability, and thermal effects over the compensated temperature range, per ISA S51.1.
More Info
Download technical specs (PDF, 553Kb)

