![](https://portal.endress.com/picpool/sft/prodcont/thumb/nmt81_housing.jpg)
![Prothermo NMT81 - Average temperature measurement Prothermo NMT81 - Average temperature measurement](/__image/a/9316585/k/59983730809c7a738fdd9366902be9a81fbfb9ee/ar/1-1/w/344/t/jpg/b/ffffff/n/true/fn/Prothermo_NMT81_aluminum_PP_1_827x2126.jpg)
Specs at a glance
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Accuracy
+/- 0.032 °C (+/- 0.058 °F)
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Operating temperature range
Options:
-40 °C...+75 °C
(-40 °F...+167 °F)
-55 °C...+235 °C
(-67 °F...+455 °F)
-196 °C...+100 °C
(-321 °F...+212 °F) -
Max. immersion length on request
up to 100 m (328 ft)
Field of application
Prothermo NMT81 measures the average temperature of a medium and can optionally identify the water level. With an optional 2m long capacitance sensor, the water level is measured continuously delivering current water level information at any time. With its highly precise average temperature measurement, the NMT81 is perfectly suitable for custody transfer and inventory monitoring together with tank gauging such as Proservo NMS80, NMS81, NMS83, Micropilot NMR81, NMR84 and TankSideMonitor NRF81.
For precision average temperature and water bottom measurement
Process connection: Flanges from 1-1/4“
Temperature: -40 to +60°C (-40 to +140°F)
Measuring distance: 100m (328.08ft)
Total accuracy: ± 0.032°C(±0.06°F) with 5pt. temperature calibration
Conversion (transmitter) accuracy: ±0.025 °C (0.045 °F)
Sensor accuracy: ±0.02 °C (0.036 °F)
Benefits
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Precise asset management thanks to up to 24 RTDs
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Corrosion-resistant process parts
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Minimize tank construction cost through 1-1/4” sized nozzle
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Easy installation
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Waterproof and dust proof housing
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Reduced downtime thanks to redundant RTDs processed by a software algorithm
Xpert selection
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
![Xpert: Master your most challenging applications Xpert: Master your most challenging applications](/__image/a/9247233/k/60c65301e6a2e97c8a48a03e5c8328769c0cc273/ar/4-3/w/496/t/jpg/b/ffffff/fn/eh_2020-11_FLEX_segmentation_Visual_X_1250x300px.jpg)
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Predecessor
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Technical Information (TI)
Prothermo NMT81
Tank Gauging
EN 07/03/202326/12/202211/10/202115/02/2021Language:
English
Version:
07/03/2023
File size:
4.4 MB
File name:
TI01590GEN_0423-00.pdf
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Operating Instruction (BA)
BA Prothermo NMT81
Average temperature device
EN 31/10/202326/12/202211/10/202108/06/2021Language:
English
Version:
31/10/2023
File size:
11.9 MB
File name:
BA02094GEN_0423-00.pdf
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Device Parameter (GP)
Prothermo NMT81
Tank Gauging
EN 26/12/202207/09/2021Language:
English
Version:
26/12/2022
File size:
874.2 KB
File name:
GP01156GEN_0222-00.pdf
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Short Instruction (KA)
KA Prothermo NMT81
Tank Gauging
EN 10/11/202326/12/202211/10/2021Language:
English
Version:
10/11/2023
File size:
7.1 MB
File name:
KA01533GEN_0323-00.pdf
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Installation Instructions (EA)
Main and sensor boards
Prothermo NMT81
EN 18/11/2021Language:
English
Version:
18/11/2021
File size:
733.1 KB
File name:
EA01411GEN_0121-00.pdf
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Installation Instructions (EA)
EA HistoROM
Gammapilot, Liquiphant, Micropilot, Prothermo
Cerabar, DeltabarEN 15/05/202313/01/202227/02/202131/07/2020Language:
English
Version:
15/05/2023
File size:
1.1 MB
File name:
EA01314FEN_0423-00.pdf
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Installation Instructions (EA)
EA Dummy plug M20×1.5 G½, NPT ½, NPT ¾
Gammapilot, Liquiphant, Micropilot, Prothermo
Cerabar, DeltabarEN 15/07/202419/06/202327/01/202231/07/2020Language:
English
Version:
15/07/2024
File size:
538.4 KB
File name:
EA01319FEN_0424-00.pdf
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Installation Instructions (EA)
Cover, cover seal
Gammapilot, Liquiphant, Micropilot, Prothermo
Cerabar, Deltabar
Remote display FHX50BEN 10/03/202327/01/202209/04/202106/02/202031/07/2019Language:
English
Version:
10/03/2023
File size:
556.9 KB
File name:
EA01265FEN_0623-00.pdf
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Installation Instructions (EA)
EA Terminal module
Gammapilot, Liquiphant, Micropilot, Prothermo
Cerabar, DeltabarEN 31/07/202427/01/202231/07/202009/08/2019Language:
English
Version:
31/07/2024
File size:
572.3 KB
File name:
EA01269FEN_0424-00.pdf
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Installation Instructions (EA)
C-ring
Prothermo NMT81
EN 18/01/2022Language:
English
Version:
18/01/2022
File size:
614.4 KB
File name:
EA01414GEN_0122-00.pdf
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