Endress+Hauser Micropilot NMR81 Technical specifications

Products Solutions Services
Brief Operating Instructions
Micropilot NMR81
Tank Gauging
These Instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Detailed information about the device can be found in the
Operating Instructions and the other documentation:
Available for all device versions via:
• Internet: www.endress.com/deviceviewer
• Smart phone/tablet: Endress+Hauser Operations App
KA01194G/00/EN/04.20
71497756
2020-09-22

Micropilot NMR81
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

Micropilot NMR81 Table of contents
Endress+Hauser 3
Table of contents
1 About this document .............................................................. 3
1.1 Document conventions .................................................................. 3
1.2 Documentation ........................................................................ 6
2 Basic safety instructions .......................................................... 7
2.1 Requirements for the personnel ............................................................ 7
2.2 Designated use ........................................................................ 7
2.3 Workplace safety ...................................................................... 8
2.4 Operational safety ......................................................................8
2.5 Product safety ......................................................................... 8
3 Product description ............................................................... 9
3.1 Product design ........................................................................ 9
4 Incoming acceptance and product identification ................................... 9
4.1 Incoming acceptance ................................................................... 9
4.2 Product identification .................................................................. 10
4.3 Storage and transport .................................................................. 10
5 Installation ...................................................................... 11
5.1 Installation conditions .................................................................. 11
6 Electrical connection ............................................................ 15
6.1 Terminal assignment .................................................................. 15
6.2 Connecting requirements ............................................................... 31
6.3 Ensuring the degree of protection ......................................................... 32
7 Commissioning .................................................................. 33
7.1 Operating methods .................................................................... 33
7.2 Terms related to tank measurement ....................................................... 36
7.3 Initial settings ........................................................................ 37
7.4 Configuration of the radar measurement .................................................... 39
7.5 Configuration of the inputs .............................................................. 40
7.6 Linking measured values to tank variables ................................................... 48
7.7 Configuration of the limit evaluation ....................................................... 49
7.8 Configuration of the signal output ......................................................... 51
1 About this document
1.1 Document conventions
1.1.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.

About this document Micropilot NMR81
4 Endress+Hauser
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.1.2 Electrical symbols
Alternating current
Direct current and alternating current
Direct current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
Protective earth (PE)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the interior and exterior of the device:
• Interior ground terminal: protective earth is connected to the mains supply.
• Exterior ground terminal: device is connected to the plant grounding system.
1.1.3 Tool symbols
Phillips head screwdriver
Flat blade screwdriver
Torx screwdriver
Allen key
Open-ended wrench
1.1.4 Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted

Micropilot NMR81 About this document
Endress+Hauser 5
Preferred
Procedures, processes or actions that are preferred
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information
Reference to documentation
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
Series of steps
Result of a step
Operation via operating tool
Write-protected parameter
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions

About this document Micropilot NMR81
6 Endress+Hauser
1.2 Documentation
The following documentation types are available in the Downloads area of the Endress
+Hauser website (www.endress.com/downloads):
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number from
nameplate
•Endress+Hauser Operations App: Enter the serial number from the nameplate or scan
the 2D matrix code (QR code) on the nameplate
1.2.1 Technical Information (TI)
Planning aid
The document contains all the technical data on the device and provides an overview of the
accessories and other products that can be ordered for the device.
1.2.2 Brief Operating Instructions (KA)
Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
1.2.3 Operating Instructions (BA)
The Operating Instructions contain all the information that is required in various phases of
the life cycle of the device: from product identification, incoming acceptance and storage, to
mounting, connection, operation and commissioning through to troubleshooting,
maintenance and disposal.
It also contains a detailed explanation of each individual parameter in the operating menu
(except the Expert menu). The description is aimed at those who work with the device over
the entire life cycle and perform specific configurations.
1.2.4 Description of Device Parameters (GP)
The Description of Device Parameters provides a detailed explanation of each individual
parameter in the 2nd part of the operating menu: the Expert menu. It contains all the device
parameters and allows direct access to the parameters by entering a specific code. The
description is aimed at those who work with the device over the entire life cycle and perform
specific configurations.
1.2.5 Safety Instructions (XA)
Depending on the approval, the following Safety Instructions (XA) are supplied with the
device. They are an integral part of the Operating Instructions.
The nameplate indicates the Safety Instructions (XA) that are relevant to the device.
1.2.6 Installation instructions (EA)
Installation Instruction are used to replace a faulty unit with a functioning unit of the same
type.

Micropilot NMR81 Basic safety instructions
Endress+Hauser 7
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel must fulfill the following requirements for its tasks:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task.
‣Are authorized by the plant owner/operator.
‣Are familiar with federal/national regulations.
‣Before starting work, read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the application).
‣Follow instructions and comply with basic conditions.
2.2 Designated use
Application and measured materials
The measuring device described in these Operating Instructions is intended for the
continuous, contact-less level measurement of liquids. The device must be installed in closed
metallic tanks or reinforced concrete tanks, or similar enclosure structures made of
comparable attenuating material. Operation is completely harmless to humans and animals.
Depending on the version ordered, the measuring device can also measure potentially
explosive, flammable, poisonous and oxidizing media.
Measuring devices for use in hazardous areas, in hygienic applications or in applications
where there is an increased risk due to process pressure, are labeled accordingly on the
nameplate.
To ensure that the measuring device remains in proper condition for the operation time:
‣Only use the measuring device in full compliance with the data on the nameplate and the
general conditions listed in the Operating Instructions and supplementary documentation.
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
approval-related area (e.g. explosion protection, pressure vessel safety).
‣Use the measuring device only for media against which the process-wetted materials are
adequately resistant.
‣If the measuring device is not operated at atmospheric temperature, compliance with the
relevant basic conditions specified in the associated device documentation is absolutely
essential.
‣Protect the measuring device permanently against corrosion from environmental
influences.
‣Observe the limit values in the "Technical Information".
The manufacturer is not liable for damage caused by improper or non-designated use.
Residual risk
During operation the sensor may assume a temperature near the temperature of the
measured material.
Danger of burns due to heated surfaces!
‣For high process temperatures: Install protection against contact in order to prevent burns.

Basic safety instructions Micropilot NMR81
8 Endress+Hauser
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
2.4 Operational safety
Risk of injury.
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with the manufacturer.
Repair
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from the manufacturer only.
Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the hazardous
area (e.g. explosion protection, pressure vessel safety):
‣Based on the nameplate, check whether the ordered device is permitted for the intended
use in the hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an integral
part of these Instructions.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet state-
of-the-art safety requirements, has been tested, and left the factory in a condition in which it
is safe to operate. It meets general safety standards and legal requirements.
NOTICE
Loss of degree of protection by opening of the device in humid environments
‣If the device is opened in a humid environment, the degree of protection indicated on the
nameplate is no longer valid. This may also impair the safe operation of the device.
2.5.1 CE mark
The measuring system meets the legal requirements of the applicable EC guidelines. These are
listed in the corresponding EC Declaration of Conformity together with the standards applied.
Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.

Micropilot NMR81 Product description
Endress+Hauser 9
3 Product description
3.1 Product design
1 1 1
2 2 2
5 5 5
678
3
4
A0027765
 1 Design of Micropilot NMR81
1 Electronics housing
2 Display and operating module (can be operated without opening the cover)
3 Alignment device for antenna 100 mm (4 in)
4 Level tool (used to check the correct alignment of the antenna)
5 Process connection (flange)
6 Antenna 50 mm (2 in)
7 Antenna 80 mm (3 in)
8 Antenna 100 mm (4 in)
4 Incoming acceptance and product identification
4.1 Incoming acceptance
Upon receipt of the goods check the following:
• Are the order codes on the delivery note and the product sticker identical?
• Are the goods undamaged?
• Do the nameplate data match the ordering information on the delivery note?
• If required (see nameplate): Are the Safety Instructions (XA) enclosed?
If one of these conditions is not satisfied, contact your Endress+Hauser Sales Center.

Incoming acceptance and product identification Micropilot NMR81
10 Endress+Hauser
4.2 Product identification
The following options are available for identification of the measuring device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer
( www.endress.com/deviceviewer ): All information about the measuring device is
displayed.
• Enter the serial number from the nameplates into the Endress+Hauser Operations App or
scan the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser Operations
App: all the information for the measuring device is displayed.
For an overview of the scope of the associated Technical Documentation, refer to the
following:
• The W@M Device Viewer: Enter the serial number from the nameplate
(www.endress.com/deviceviewer)
• The Endress+Hauser Operations App: Enter the serial number from the nameplate or scan
the 2-D matrix code (QR code) on the nameplate.
4.2.1 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Address of the manufacturing plant: See nameplate.
4.3 Storage and transport
4.3.1 Storage conditions
• Storage temperature: –50 to +80 °C (–58 to +176 °F)
• Store the device in its original packaging.
4.3.2 Transport
NOTICE
Housing or antenna may be damaged or break away.
Risk of injury
‣Transport the measuring device to the measuring point in its original packaging or at the
process connection.
‣Do not fasten lifting devices (hoisting slings, lifting eyes etc.) at the housing or the antenna
but at the process connection. Take into account the mass center of the device in order to
avoid unintended tilting.
‣Comply with the safety instructions, transport conditions for devices over 18kg (39.6lbs)
(IEC61010).

Micropilot NMR81 Installation
Endress+Hauser 11
5 Installation
5.1 Installation conditions
5.1.1 Mounting position
General conditions
• Do not install in the centre of the tank.
• Do not install above a filling stream.
• Avoid any tank installations (e.g. limit switches, temperature probes) within in the signal
beam.
Minimum wall distance
Measuring range Minimum wall distance
Antenna 50mm/2" 1) Antenna 80mm/3" 2) Antenna 100mm/4" 3)
5 m (16 ft) 0.3 m (0.98 ft) 0.17 m (0.55 ft) 0.13 m (0.44 ft)
10 m (33 ft) 0.6 m (1.9 ft) 0.33 m (1.1 ft) 0.27 m (0.87 ft)
15 m (49 ft) 0.9 m (2.9 ft) 0.5 m (1.6 ft) 0.4 m (1.3 ft)
20 m (66 ft) 1.2 m (3.9 ft) 0.67 m (2.2 ft) 0.53 m (1.7 ft)
25 m (82 ft) 1.5 m (4.9 ft) 0.83 m (2.7 ft) 0.67 m (2.2 ft)
30 m (98 ft) 1.8 m (5.9 ft) 1.0 m (3.3 ft) 0.8 m (2.6 ft)
1) Ordering feature 100 "Antenna", option AB
2) Ordering feature 100 "Antenna", option AC
3) Ordering feature 100 "Antenna", option AD
5.1.2 Mounting nozzle
Hmax
øD
A0032956

Installation Micropilot NMR81
12 Endress+Hauser
Inner nozzle diameter (ØD) Maximum nozzle length (Hmax) 1)
Antenna AB 2):
50mm/2"
Antenna AC:
80mm/3"
Antenna AD:
100mm/4"
> 45 mm (1.77 in); ≤ 75 mm (2.95 in) 600 mm (24 in) - -
> 75 mm (2.95 in); ≤ 95 mm (3.74 in) 1 000 mm (40 in) 1 700 mm (68 in) -
> 95 mm (3.74 in); ≤ 150 mm (5.91 in) 1 250 mm (50 in) 2 150 mm (86 in) 2 850 mm (114 in)
> 150 mm (5.91 in) 1 850 mm (74 in) 3 200 mm (128 in) 4 300 mm (172 in)
1) In case of longer nozzles, a reduced measuring performance is to be expected.
2) Feature 100 of the product structure

Micropilot NMR81 Installation
Endress+Hauser 13
5.1.3 Vertical alignment of the 50mm(2") and 80mm (3") antenna
For optimum measuring accuracy the antenna must be installed at right angles to the medium
surface. An adjustable seal is available for the alignment.
Adjustable seal
h
2
3
1
4°
øD
ød
hmax
hmin
±8°
A0027787
 2 Adjustable seal used to align the device by ±8 °

Installation Micropilot NMR81
14 Endress+Hauser
5.1.4 Vertical alignment of the 100mm(4") antenna
For optimum measuring accuracy the antenna must be installed at right angles to the medium
surface. For this purpose the 100mm(4") antenna always has an alignment unit. A level tool
indicating the correct alignment is attached to the alignment tool.
α
90 °
1
A0027776
 3 Alignment unit of the 100mm(4") antenna
1 Level tool indicating the correct alignment
α Alignment angle; αmax = 25 °

Micropilot NMR81 Electrical connection
Endress+Hauser 15
6 Electrical connection
6.1 Terminal assignment
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
G1
3
2
POWER
G1
3
2
POWER
G1 N
G3 L
AC 85...264 V
A0026372
 4 Terminal compartment (typical example) and ground terminals
Terminal area A/B/C/D (slots for I/O modules)
Module: Up to four I/O modules, depending on the order code
• Modules with four terminals can be in any of these slots.
• Modules with eight terminals can be in slot B or C.
The exact assignment of the modules to the slots is dependent on the device version
→  20.
Terminal area E
Module: HART Ex i/IS interface
• E1: H+
• E2: H-
Terminal area F
Remote display
• F1: VCC (connect to terminal 81 of the remote display)
• F2: Signal B (connect to terminal 84 of the remote display)
• F3: Signal A (connec t to terminal 83 of the remote display)
• F4: Gnd (connect to terminal 82 of the remote display)
Terminal area G (for High voltage AC power supply and Low voltage AC power supply)
• G1: N
• G2: not connected
• G3: L

Electrical connection Micropilot NMR81
16 Endress+Hauser
Terminal area G (for Low voltage DC power supply)
• G1: L-
• G2: not connected
• G3: L+
Terminal area: Protective ground
Module: Protective ground connection (M4 screw)
A0018339
 5 Terminal area: Protective ground
6.1.1 Power supply
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
G1
3
2
POWER
4
F
1
1 3
2
2 4
HR
CDI
WP
SIM
G1
3
2
POWER
G1 N AC 85...264 V
A0033413
G1 N
G2 not connected
G3 L
4 Green LED: indicates power supply
The supply voltage is also indicated on the nameplate.
Supply voltage
High voltage AC power supply:
Operational value:
100 to 240 VAC (- 15 % + 10 %) = 85 to 264 VAC , 50/60 Hz
Low voltage AC power supply:
Operational value:
65 VAC (- 20 % + 15 %) = 52 to 75 VAC , 50/60 Hz

Micropilot NMR81 Electrical connection
Endress+Hauser 17
Low voltage DC power supply:
Operational value:
24 to 55 VDC (- 20 % + 15 %) = 19 to 64 VDC
Power consumption
Maximum power varies depending on the configuration of the modules. The value shows
maximum apparent power, select the applicable cables accordingly. The actual consumed
effective power is 12 W.
High voltage AC power supply:
28.8 VA
Low voltage AC power supply:
21.6 VA
Low voltage DC power supply:
13.4 W

Electrical connection Micropilot NMR81
18 Endress+Hauser
6.1.2 Remote display and operating module DKX001
1
3
Vcc
Gnd
A B
2
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
G1
3
2
POWER
F1 3
2 4
HR
WP
Vcc
Gnd
A
B
81 82 83 84
F1 F2 F3 F4
A0037025
 6 Connection of the remote display and operating module DKX001 to the Tank Gauging device
(NMR8x, NMS8x or NRF8x)
1 Remote display and operating module
2 Connecting cable
3 Tank Gauging device (NMR8x, NMS8x or NRF8x)
The remote display and operating module DKX001 is available as an accessory. For
details refer to SD01763D.
• The measured value is indicated on the DKX001 and on the local display and operating
module simultaneously.
• The operating menu cannot be accessed on both modules at the same time. If the
operating menu is entered in one of these modules, the other module is automatically
locked. This locking remains active until the menu is closed in the first module (back to
measured value display).

Micropilot NMR81 Electrical connection
Endress+Hauser 19
6.1.3 HART Ex i/IS interface
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
E1
1
2
CDI
i
G1
3
2
POWER
3
A0033414
E1 H+
E2 H-
3 Orange LED: indicates data communication
This interface always operates as the main HART master for connected HART slave
transmitters. The Analog I/O modules, on the other hand, can be configured as a HART
master or slave →  23 →  26.

Electrical connection Micropilot NMR81
20 Endress+Hauser
6.1.4 Slots for I/O modules
The terminal compartment contains four slots (A, B, C and D) for I/O modules. Depending on
the device version (ordering features 040, 050 and 060) these slots contain different I/O
modules. The slot assignment for the device at hand is indicated on a label attached to the
back cover of the display module.
Spare parts for: Proservo NMS81
Ser.-no.:8A21AC098AF4
Spare part Spare no./structure
Displacer
Wire Drum
Additional information:
XPF0002-AABICR+
AAEAEBEFLALC76
XPF0002-AABEFEG+
XPF0002-AABEFEG+
XPF0002-AABEFEG+
XPF0002-AABEFEG+
XPF0002-AABEFEG+
XPF0002-AABEFEG+
XPF0002-AABEFEG+
XPF0002-AABEFEG+
71273689
7122xxxx
XPF0002-AABEFEG+
AAAAACDEFEG+
XPF0002-AAACABADJ+
AAHAHCHRIJJAJBKP
71023451
71023451
71023451
Cover
IOM-V1
IOM-A/RTD
IOM-D
Slot A
Slot B
Slot C
Slot D
IO Mod FF
Display
Display asm.
Detector
Main electr.
SMS electr.
6
7
8
9
10
11
12
5
4
3
2
1
www.endress.com/deviceviewer
1
D
C
B
A
A0030070
1 Label showing (among other things) the modules in the slots A to D.
A Cable entry for slot A
B Cable entry for slot B
C Cable entry for slot C
D Cable entry for slot D