

DIGITAL SOLUTIONS
Thermistors Strings
RST Instruments manufacture Thermistor String assemblies that are environmentally hardened to provide accurate and reliable long-term measurements under demanding geotechnical conditions.
Overview
Overview
Thermistor Strings incorporate interchangeable, curve tracking, negative temperature coefficient (NTC) thermistors. As the Thermistors are Resistance-Temperature curve matched over selected temperature ranges, this permits the use of multiple sensors with a single readout or data logger, eliminating costly calibration procedures.
RST’s Thermistor Strings are custom manufactured to user specifications for cable length, thermistor number and location on the string. Resistance to water ingress is ensured by a triple encapsulation procedure and is rated to 3.5MPa. The standard cable employed is a heavy-duty, direct burial-rated 22-24 AWG gauge water-blocked instrumentation cable.
RST’s DT Series and RSTAR Affinity Data Loggers or FlexDAQ Data Loggers can be used to monitor one or multiple Thermistor Strings.
Product features
- Rated up to 3.5 MPa pressures
- High reliability, ensured by triple encapsulation
- Pre-assembled to specific length and spacing
- Precision matched, interchangeable thermistors
- Heavy duty, direct burial cable standard
Features and benefits
Features and benefits
Thermistor Strings specifications
| Item | Specification |
| Interchangeability Tolerance | ±0.1°C |
| Interchangeability Temp. Range | 0°C to +75°C |
| Operating Temp. Range | -40°C to +75°C |
| Stability | 0.01°C or better /100 months at 0°C |
| Resistance at 25ºC | 3k ohms |
Resources
Resources
RST Instruments range

Digital Solutions
RSTAR Affinity

Digital Solutions
Data Loggers

Digital Solutions
Software

Digital Solutions
Piezometers

Digital Solutions
Inclinometers

Digital Solutions
Tiltmeters

Digital Solutions
Settlement Systems

Digital Solutions
Extensometers

Digital Solutions
Crack Meters

Digital Solutions
Strain Gauges and Strain Meters

Digital Solutions
Pressure Cells

Digital Solutions
Load Cells

Digital Solutions
Thermistors

Digital Solutions
Signal Cables

Digital Solutions
Readouts

Digital Solutions
Service and Partners
Explore more
We are a global leader in geotechnical, geospatial and structural monitoring. We deliver a complete portfolio, from sensors to services, for mining and civil infrastructure customers. Our expertise is grounded in Orica's innovation and technical excellence that span more than 150 years.
Contact an expert
Contact an expert

