Prothermo NMT81
Technical Data
CompareThermometer
| Measuring Principle | Resistance Temperature Detector |
| Characteristic / Application | High precision average temperature measurement up to 100 m (328 ft), Options: - Display - Sensor probe height adjustment - Heartbeat Verification + Monitoring |
| Max. immersion length on request | up to 100 m (328 ft) |
| Process connection | Flange: DN50...DN80, ASME 2"...4", JIS 10K Threads: 3/4" MNPT2 M20 |
| Operating temperature range | Options: -40 °C...+75 °C (-40 °F...+167 °F) -40 °C...+100 °C (-40 °F...+212 °F) -55 °C...+235 °C (-67 °F...+455 °F) -196 °C...+100 °C (-321 °F...+212 °F) |
| Accuracy | +/- 0.032 °C (+/- 0.058 °F) |
| Ex - approvals | ATEX, IEC Ex, JPN Ex, UK Ex |
| Certification | Metrological approvals and certifications: NMi, PTB Calibration performed on accredited calibration facilities (acc. to ISO/ IEC 17025) |
Average temperature thermometer Prothermo NMT81, high-precision average temperature measurement
Benefits
-
Up to 24 resistance thermometers can be installed for precise asset management
-
Corrosion-resistant wetted parts
-
Installation opening of only 1-1/4”, minimizing tank manufacturing costs
-
Simple installation
-
Watertight and dustproof housing
-
Redundant resistance thermometer measurement via software algorithms, reducing downtime
Applications
The Prothermo NMT81 is used for average temperature measurement of the medium, with an optional level monitoring function. The instrument has a built-in 2-meter capacitive sensor that continuously measures the level and can output the current level information at any time. The NMT81 high-precision average temperature thermometer, used together with tank gauging instruments (e.g., servo level gauges Proservo NMS80, NMS81 and NMS 83; radar level gauges Micropilot NMR81 and NMR84; and tank-side indicator NRF81), is the ideal choice for custody transfer and inventory monitoring applications.
-
High-precision average temperature measurement and water bottom level measurement
-
Process connection: flange (nominal size not less than 1-1/4“)
-
Temperature range: -40...+60°C (-40...+140°F)
-
Measuring height: 100 m (328.08 ft)
-
Overall accuracy: ±0.032°C (±0.06°F) with 5-point temperature calibration
-
Conversion accuracy (temperature): ±0.025°C (0.045°F)
-
Sensor measurement accuracy: ±0.02°C (0.036°F)
E+H product configurator
Please enter the product order code to configure
Product comparison
Please enter the order codes of the products to compare in the fields below. Up to three products can be compared.
Technical documentation
Technical data
Documents/Manuals/Software
Accessories/Spare parts
Source: Endress+Hauser public information from the website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · RTD Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of RTD.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable RTD for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · RTD Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of RTD.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable RTD for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · RTD Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of RTD.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable RTD for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · RTD Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of RTD.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable RTD for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Related Products
Endress+HauseriTHERM ModuLine TM101
Endress+HauseriTHERM ModuLine TM131
Endress+HauserRTD Thermometer TR10
Endress+HauseriTHERM ModuLine TM111
Endress+HauseriTHERM CompactLine TM311
Endress+HauserCompact Thermometer TMR31
Endress+Hauser温度计，导线探头
Endress+Hauser