109SS-L Stainless Steel Temperature Probe

Categories Environment , Weather Station & Sensors

The 109SS thermistor can survive temperatures up to 100°C, but the overmolded joint and cable should not be exposed to temperatures hotter than +70°C.

Water Temperature

The sensor can be submerged to 46 m (150 ft) or 63 psi. Please note that the 109SS is not weighted. Therefore, the installer should either add a weighting system or secure the sensor to a fixed, submerged object, such as a piling.

Soil Temperature

The 109SS is suitable for shallow burial only. Placement of the sensor’s cable inside a rugged conduit may be advisable for long cable runs—especially in locations subject to digging, mowing, traffic, use of power tools, or lightning strikes.

Benefits and Features

Designed for harsh, corrosive environments
Fast response time
Wide temperature measurement range
Easy to install or remove
Compatible with most of our current and retired data loggers

Overview
Specification

The 109SS is a rugged, accurate probe that measures soil or water temperature from -40° to +70°C. The 109SS consists of a thermistor encased in a sheath made from grade 316L stainless steel. The rugged stainless-steel sheath protects the thermistor, allowing you to bury or submerge the 109SS in harsh, corrosive environments. This probe also has a fast time response, and it can be easily interfaced with our data loggers.

109SS Stainless Steel Temperature Probe is measures temperature in harsh, corrosive environments
Thermistor sheathed in a stainless-steel casing
Maintains a fast response time
Measures temperatures from -40° to 70°C
Thermistor can operate in temperatures up to 100°C, however, the overmolded joint and cable should not be exposed to temperatures greater than 70°C.

Output	Analog
Operating Temperature Range	-40° to +70°C
Accuracy	Note: Overall probe accuracy is a combination of thermistor interchangeability, bridge-resistor accuracy, and error of the Steinhart-Hart equation. Interchangeability is the principle component error. If needed, an estimate of the interchangeability error for 0 to 50°C, that can be used as the *Offsetparameter of the Therm109()* instruction, can be determined with a 1-point or 2-point calibration. ±0.60°C (-40 to +70°C) ±0.49°C (-20 to +70°C)
Maximum Submergence	45.7 m (150 ft) or 434 kPa (63 psi)
Temperature Measurement Range	-40° to +70°C
Thermistor Temperature Survival Range	-50° to +100°C
Overmolded Joint and Cable Temperature Survival Range	-50° to +70°C
Interchangeability Error	±0.6°C tolerance (-40°C) ±0.38°C tolerance (0°C) ±0.1°C tolerance (25°C) ±0.3°C tolerance (50°C) ±0.4°C tolerance (70°C)
Steinhart-Hart Equation Error	≤ 0.02°C (-40°)
Time Constant in Air	31 s (still air) 7.5 s (air @ 3 m/s) 0.5 s (antifreeze/water rolling)
Sensor Description	Micro-BetaCHIP Probe 10K3MCD1, 0.5 mm (0.018 in.) diameter, 10 kohm at 25°C
Cable Description	0.56 cm (0.22 in.) diameter with Santoprene jacket
Cable/Probe Connection	“ATUM” heat shrink, “Macromelt” overmolded joint
Stainless-Steel Sheath Diameter	0.16 cm (0.063 in.)
Stainless-Steel Sheath Length	5.84 cm (2.3 in.)
Overmolded Joint Diameter	1.02 cm (0.40 in.)
Overmolded Joint Length	4.24 cm (1.67 in.)
Weight	0.1 kg with 3.2 m cable (0.2 lb with 10.5 ft cable)