©Endress+Hauser
Specs at a glance
Accuracy
+/- 0.032 °C (+/- 0.058 °F)
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
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.
Benefits
Precise asset management thanks to up to 24 RTDs
Corrosion-resistant process parts
Minimize tank construction cost through 1-1/4” sized nozzle
Easy installation
Waterproof and dust proof housing
Reduced downtime thanks to redundant RTDs processed by a software algorithm
Xpert selection
Specialized products
Designed for demanding applications
Technical excellence
Simplicity
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Designed for demanding applications
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Meet your basic measurement needs
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Handle your core processes easily
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Optimize your processes with innovative technologies
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Master your most challenging applications
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Success stories
Tube skin temperature measurement
How thermometers can detect pipe overheating, lead to significant energy savings and increase process efficiency and product quality
Read the full story
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
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) -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
Most downloaded
Prothermo NMT81
English version - 03/2023
Tank Gauging
EN
DE ES FR IT JA PL PT RU ZH
07/03/2023
26/12/2022
11/10/2021
15/02/2021
Language:
English
Version:
07/03/2023
File size:
4.4 MB
File name:
TI01590GEN_0423-00.pdf
BA Prothermo NMT81
English version - 10/2023
Average temperature device
EN
DE ES FR IT JA PL PT RU ZH
31/10/2023
26/12/2022
11/10/2021
08/06/2021
Language:
English
Version:
31/10/2023
File size:
11.9 MB
File name:
BA02094GEN_0423-00.pdf
43 documents
EN
German Spanish French Italian Japanese Polish Portuguese Russian Chinese
07/03/2023
26/12/2022
11/10/2021
15/02/2021
Language:
English
Version:
07/03/2023
File size:
4.4 MB
File name:
TI01590GEN_0423-00.pdf
Average temperature device
EN
German Spanish French Italian Japanese Polish Portuguese Russian Chinese
31/10/2023
26/12/2022
11/10/2021
08/06/2021
Language:
English
Version:
31/10/2023
File size:
11.9 MB
File name:
BA02094GEN_0423-00.pdf
EN
German French Japanese
26/12/2022
07/09/2021
Language:
English
Version:
26/12/2022
File size:
874.2 KB
File name:
GP01156GEN_0222-00.pdf
EN
Bulgarian Czech Danish German Greek Spanish Estonian Finnish French Croatian Hungarian Indonesian Italian Japanese Korean Lithuanian Latvian Dutch Norwegian Polish Portuguese Romanian Russian Slovak Slovenian Swedish Thai Turkish Chinese
10/11/2023
26/12/2022
11/10/2021
Language:
English
Version:
10/11/2023
File size:
7.1 MB
File name:
KA01533GEN_0323-00.pdf
Language:
English
Version:
18/11/2021
File size:
733.1 KB
File name:
EA01411GEN_0121-00.pdf
Gammapilot, Liquiphant, Micropilot, Prothermo Cerabar, Deltabar
EN
German Japanese
15/05/2023
13/01/2022
27/02/2021
31/07/2020
Language:
English
Version:
15/05/2023
File size:
1.1 MB
File name:
EA01314FEN_0423-00.pdf
Language:
English
Version:
18/01/2022
File size:
614.4 KB
File name:
EA01414GEN_0122-00.pdf
EA Segment display VU100/VU101
Graphical display VU112/VU113
Gammapilot, Liquiphant, Micropilot, Prothermo Cerabar, Deltabar, Remote display FHX50B
EN
German Japanese
20/04/2023
27/01/2022
02/04/2021
30/04/2020
09/08/2019
Language:
English
Version:
20/04/2023
File size:
596.4 KB
File name:
EA01267FEN_0523-00.pdf
Gammapilot, Liquiphant, Micropilot, Prothermo Cerabar, Deltabar
EN
German Japanese
31/07/2024
27/01/2022
31/07/2020
09/08/2019
Language:
English
Version:
31/07/2024
File size:
572.3 KB
File name:
EA01269FEN_0424-00.pdf
EA Dummy plug M20×1.5
G½, NPT ½, NPT ¾
Gammapilot, Liquiphant, Micropilot, Prothermo Cerabar, Deltabar
EN
German Japanese
15/07/2024
19/06/2023
27/01/2022
31/07/2020
Language:
English
Version:
15/07/2024
File size:
538.4 KB
File name:
EA01319FEN_0424-00.pdf
Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
Blind plug, M20, 316L, o-ring EPDM
Drawing number
Order code
14
71487198
Blind plug, M20, Alu, o-ring EPDM
Drawing number
Order code
14
71487199
Drawing number
Order code
15
71487201
Drawing number
Order code
15
71487203
Cover, Alu, closed, Ex d, w/o sealing
Drawing number
Order code
20
71500605
Cover, Alu, sight window, w/o sealing
Drawing number
Order code
20
71500610
Cover,Alu,glass window,Ex d, w/o sealing
Drawing number
Order code
20
71500612
Cover, 316L, closed, Ex d, w/o sealing
Drawing number
Order code
20
71500613
Cover,316L,glass window,Ex d,w/o sealing
Drawing number
Order code
20
71500616
Cover sealing FVMQ, -60oC, 5 pieces
Drawing number
Order code
21
71435134
Electronic NMT81, HART, w/o HistoROM
Drawing number
Order code
30
71496104
Drawing number
Order code
32
71496118
Terminal unit TU101A, 4-20mA, OVP,L-form
Drawing number
Order code
35
71458633
Drawing number
Order code
40
71435772
Drawing number
Order code
65
71496120
Weather protection cover, 316L, XW112
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