Specs at a glance
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Accuracy
up to 0.4 mm
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Process temperature
-200°C...200°C
(-328°F...392°F) -
Process pressure / max. overpressure limit
up to 25 bar (363 psi) abs
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Max. measurement distance
47 m (154 ft)
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Main wetted parts
316L, AlloyC276, PTFE
Field of application
The intelligent tank gauge Proservo NMS81 is designed for high accuracy liquid level measurement in custody transfer and inventory control applications with NMi- and PTB-approvals. It meets the relevant requirements according to OIML R85 and API 3.1B. It fulfills the exact demands of tank inventory management and loss control and is optimized in regards of total cost saving and safe operation.
For high accuracy custody transfer measurement in crude oil, gasoline, diesel, petrochemicals and chemicals.
Process connections: Flanges
Temperature: -200 to +200°C (-328 to +392°F)
Pressure: 0 to +25bar (0 to +362psi)
Maximum measuring range: 47m (154ft)
Accuracy: ±0.4mm (±0.02")
International explosion protection and custody transfer certificates, overfill prevention WHG, SIL
Benefits
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Hardware and software developed according to IEC 61508 up to SIL3 (in homogeneous redundancy) for high level of safety
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Maximum reliability through accuracy up to ±0.4mm (± 0.02")
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Developed according to international metrology recommendations such as OIML R85 and API MPMS
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Local and country-specific certifications like NMi or PTB for custody transfer applications
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Superior corrosion resistance with 316L materials in the process compatible with sour applications such as crude oil
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Measurement of interfaces between up to three liquid layers, tank bottom, spot, and profile densities
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Best fit for LNG/LPG applications without influence of dc value or Boil Off Gas
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Predecessor
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Most downloaded
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Technical Information (TI)
TI Proservo NMS81
English version - 10/2023
Tank Gauging
EN 25/10/202310/11/202205/08/202013/07/201807/06/2018Language:
English
Version:
25/10/2023
File size:
6 MB
File name:
TI01249GEN_0723-00.pdf
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ZE (Certificate)
Certificat d'examen LNE
French version - 10/2020
LNE Certificat d’examen de type N° LNE-33204 rév. 2 Proservo NMS80, NMS81
EN 28/10/202025/09/2017Language:
French
Version:
28/10/2020
File size:
202.8 KB
File name:
ZE01038GFR_0220.pdf
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136 documents
-
-
Technical Information (TI)
TI Proservo NMS81
Tank Gauging
EN 25/10/202310/11/202205/08/202013/07/201807/06/2018Language:
English
Version:
25/10/2023
File size:
6 MB
File name:
TI01249GEN_0723-00.pdf
-
-
-
Operating Instruction (BA)
BA Proservo NMS81
Tank Gauging
EN 25/10/202310/11/202205/08/202013/07/201807/06/2018Language:
English
Version:
25/10/2023
File size:
14 MB
File name:
BA01459GEN_0723-00.pdf
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-
-
Device Parameter (GP)
Proservo NMS81
Tank Gauging
EN 17/02/202320/07/201829/06/201701/03/2016Language:
English
Version:
17/02/2023
File size:
4.5 MB
File name:
GP01077GEN_0423-00.pdf
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-
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Short Instruction (KA)
Proservo NMS81
Tank Gauging
EN 10/11/202205/08/202030/07/201824/05/201701/03/2016Language:
English
Version:
10/11/2022
File size:
7.5 MB
File name:
KA01203GEN_0522-00.pdf
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-
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Installation Instructions (EA)
SD card with holder Installation Instructions
Micropilot NMR8x; ProservoNMS8x; Tankside Monitor NRF81
EN 30/09/201730/11/2016Language:
English
Version:
30/09/2017
File size:
1 MB
File name:
EA01184GA2_0217.pdf
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-
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Installation Instructions (EA)
Sensor assembly Installation Instructions
Tank Gauging
EN 30/10/201719/10/2017Language:
English
Version:
30/10/2017
File size:
3.5 MB
File name:
EA01225GF3_0317.pdf
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-
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Installation Instructions (EA)
Housing filter Installation Instructions
Micropilot, Proservo, Tankside Monitor
EN 28/02/201830/11/2016Language:
English
Version:
28/02/2018
File size:
404 KB
File name:
EA01183GA2_0218.pdf
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-
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Installation Instructions (EA)
Displacer unit, Servo Installation Instructions
Proservo NMS8x
EN 24/10/2017Language:
English
Version:
24/10/2017
File size:
1.9 MB
File name:
EA01234GF3_0117.pdf
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-
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Installation Instructions (EA)
O-ring, Servo Installation Instructions
Proservo NMS8x
EN 24/10/2017Language:
English
Version:
24/10/2017
File size:
3.2 MB
File name:
EA01235GF3_0117.pdf
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-
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Installation Instructions (EA)
Wire drum, measuring wire unit, Servo
Proservo NMS8x
EN 23/06/2022Language:
English
Version:
23/06/2022
File size:
2.1 MB
File name:
EA01434GEN_0122-00.pdf
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Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
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Drum Housing Cover, 316L
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Cover
Drawing numberOrder code1071273750 -
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Calibration window cover, 316L
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Cover
Drawing numberOrder code2071273751 -
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Cable, mainboard to electronics, Servo
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Cable/cable accessories
Drawing numberOrder code3971273688 -
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Detector Unit, Servo
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Electro mechanic
Drawing numberOrder code5071273681 -
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Sensor module, Servo
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further parts
Drawing numberOrder code5171273689 -
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I/O Module NMR81/84, NRF81, NMS80/81/83
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I/O module
Drawing numberOrder code33XPN0031- -
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Seal, HNBR, FVMQ, EPDM, NMS81/83
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Sealing
Drawing numberOrder code6571319969 -
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Seal, FKM, FVMQ, EPDM, NMS81/83
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Sealing
Drawing numberOrder code6571319974 -
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Seal, CR, FVMQ, EPDM, NMS81/83
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Sealing
Drawing numberOrder code6571319977 -
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Seal, PTFE, FVMQ, EPDM, NMS81/83
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Sealing
Drawing numberOrder code6571319980 -
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Seal, VMQ, FVMQ, EPDM, NMS81/83
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Sealing
Drawing numberOrder code6571319987 -
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Wire drum bracket, 316L
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Meas. wire/tape
Drawing numberOrder code8071273693 -
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Wire ring, 316L
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Meas. wire/tape
Drawing numberOrder code8071273744 -
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Wire ring, AlloyC
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Meas. wire/tape
Drawing numberOrder code8071663875 -
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Wire ring, PTFE
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Meas. wire/tape
Drawing numberOrder code8071273746 -
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2x Bearing, wire drum bracket, PTFE
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Meas. wire/tape
Drawing numberOrder code8271273739 -
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Measuring wire, 316L, 0.15mm dia., 60m
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Meas. wire/tape
Drawing numberOrder code8671273740 -
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Measuring wire, AlloyC, 0.2mm dia., 22m
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Meas. wire/tape
Drawing numberOrder code8671273742 -
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Measuring wire,PFA>316L,0.4mm dia.16m
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Meas. wire/tape
Drawing numberOrder code8671659149 -
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Blind plug, M20, 316L, O-ring EPDM, TG
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Adapter housing/cable entry
Drawing numberOrder code1471312592 -
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O-ring, blind plug, M20, EPDM, 5pcs., TG
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Sealing
Drawing numberOrder code6571312594 -
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Front cover Alu, sight glas, gasket
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Cover
Drawing numberOrder code2071312596 -
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Front cover 316L, sight glas, gasket
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Cover
Drawing numberOrder code2071312607 -
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Cover clamp, 2 pcs., TG
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Housing/housing accessories
Drawing numberOrder code1771312627 -
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Display set, RS485, holder, TG
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Display
Drawing numberOrder code4071312638 -
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Display holder, fixing ring, TG
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Display
Drawing numberOrder code4171312640 -
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Terminal set, I/O module, Push-in, TG
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Terminals
Drawing numberOrder code3771324756 -
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Terminal set, I/O module, screw type, TG
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Terminals
Drawing numberOrder code3771324757 -
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Displacer Proservo
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Displace/float
Drawing numberOrder code88XPN0005- -
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Wire Drum assembly Proservo
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Meas. wire/tape
Drawing numberOrder code84XPN0006- -
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SD card, SW revision
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Memory
Drawing numberOrder code45XPN0035- -
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Frontplane assembly, labelled
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Electronic
Drawing numberOrder code32XPN0037- -
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Electronics, mainboard
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Electronic
Drawing numberOrder code31XPN0036- -