Endress+Hauser Prothermo NMT532 User manual

Products Solutions Services
Operating Instructions
Prothermo NMT532
Average temperature device
BA01032G/00/EN/22.19
71440635
2019-05-23

Prothermo NMT532
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

Prothermo NMT532 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Document function ..................... 4
1.2 Symbol .............................. 4
1.3 Documentation ........................ 7
1.4 Registered trademarks ................... 7
2 Basic safety instructions ............ 8
2.1 Requirements for personnel ............... 8
2.2 Designated use ........................ 8
2.3 Workplace safety ....................... 8
2.4 Operational safety ...................... 9
2.5 Product safety ......................... 9
3 Product description ................ 10
3.1 Product design ........................ 10
3.2 Technical data ........................ 10
3.3 Description of functions ................. 12
4 Incoming acceptance and product
identification ..................... 14
4.1 Incoming acceptance ................... 14
4.2 Product identification .................. 14
4.3 Manufacturer contact address ............ 16
4.4 Storage and transport .................. 16
5 Installation ....................... 18
5.1 Dimensions of NMT532 ................. 18
5.2 Position of NMT532 element No. 1 based on
the installation method ................. 19
5.3 Unpacking ........................... 19
5.4 Flexible tube handling .................. 20
5.5 Mounting NMT532 on fixed roof tank ...... 21
6 Electrical connection .............. 32
6.1 Terminal connection ................... 32
6.2 NRF590 terminals ..................... 34
6.3 Grounding ........................... 35
7 Adjustment and settings ........... 36
7.1 Local HART connection ................. 36
7.2 Device configuration: NRF590 ............ 36
7.3 Device configuration: NMS5/NMS7 ........ 37
7.4 Configuring NMT532 with NMS8x/NMR8x/
NRF81 ............................. 39
8 Operation ......................... 46
8.1 HART device codes ..................... 46
8.2 Device data .......................... 46
8.3 Temperature measurement .............. 46
8.4 WB (water bottom) level input from host .... 59
8.5 Temperature element near the tank bottom .. 60
8.6 Write-protection switch (write-protection
plug) ............................... 62
8.7 Module configuration .................. 62
9 Diagnostics and troubleshooting ... 63
9.1 System error messages .................. 63
10 Maintenance ...................... 65
10.1 Maintenance work ..................... 65
10.2 Endress+Hauser services ................ 65
11 Repair ............................ 66
11.1 General information on repairs ............ 66
11.2 Spare parts .......................... 66
11.3 Endress+Hauser services ................ 66
11.4 Return .............................. 67
11.5 Disposal ............................ 67
12 Accessories ....................... 68
12.1 Device-specific accessories ............... 68
Index .................................. 71

About this document Prothermo NMT532
4 Endress+Hauser
1 About this document
1.1 Document function
These Operating Instructions contain all the information that is required during 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.
1.2 Symbol
1.2.1 Safety symbols
Symbol Meaning
DANGER
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in serious or fatal injury, as well as a risk of fire or explosion.
WARNING
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in a risk of serious or fatal injury, fire or explosion.
CAUTION
Note
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in a risk of minor or moderate injury and damages to properties.
NOTICE
NOTE!
This symbol contains information on procedures and other facts that do not result in
personal injury.
1.2.2 Electrical symbols
Symbol Meaning
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal that, as far as the operator is concerned, is grounded via a
grounding system.
Protective ground connection
A terminal that must be connected to the ground prior to establishing any other
connections.
Equipotential connection
This connects with the grounding system at the plant. It includes equipotential line
and single point ground systems, depending on the norms of each country or
company.

Prothermo NMT532 About this document
Endress+Hauser 5
1.2.3 Tool symbols
Symbol Meaning
A0013442
Torx screwdriver
A0011220
Flat blade screwdriver
A0011219
Phillips screwdriver
A0011221
Allen key
A0011222
Open-ended wrench
1.2.4 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted
Preferred
Procedures, processes or actions that are preferred
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information
Reference to documentation
A
Reference to page
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
… Series of steps
Result of an operation or commissioning
Help in the event of a problem
Visual inspection
Operation via the local display
Operation via operating tool
Write-protected parameter

About this document Prothermo NMT532
6 Endress+Hauser
1.2.5 Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
1.
,
2.
,
3.
… Series of steps
A, B, C, ... Graphics
A-A, B-B, C-C, ... Cross-sections
-
Hazardous area
Indicates the hazardous area
.
Safe area (non-hazardous area)
Indicates the non-hazardous area
1.2.6 Device symbol
Symbol Meaning
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
Temperature resistance of the connection cables
Specifies the minimum value of the temperature resistance of the connection cables.

Prothermo NMT532 About this document
Endress+Hauser 7
1.3 Documentation
For an overview of the scope of the relevant Technical Documentation included with
the product, 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.
1.3.1 Technical information
The Technical Information 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.
Device Technical Information
Prothermo NMT532 TI00049G
1.3.2 Operating instructions (BA)
The Operating Instructions contain all the information that is required during 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.
The Operating Instructions also contain detailed descriptions of each parameter in the
operation menu. The description is aimed at those who work with the device over the
entire life cycle and perform specific configurations.
Device Operating Instructions
Prothermo NMT532 BA01032G
1.3.3 Safety instructions (XA)
Feature 010 ("Approval") Meaning Ex / XA
B ATEX Ex ia IIB T4-T6 XA00584G
F IEC Ex ia IIB T4-T6 XA00581G
G NEPSI Ex ia IIB T4-T6 XA01260G
M INMETRO Ex ia IIB T4-T6 XA00581G
7 FM C/US IS Ci. I Div.1 Gr. C-D Ex461-852-1
1.4 Registered trademarks
FieldCare®
Registered trademark of the Endress+Hauser Process Solutions AG, Reinach, Switzerland.
HART®
Registered trademark of the FieldComm Group, Austin, USA.

Basic safety instructions Prothermo NMT532
8 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Be specialists who are trained and have a relevant qualification for this specific
function and task.
‣Be authorized by the plant owner-operator.
‣Be familiar with local/national regulations.
‣Before starting work, read and understand the instructions in the Operating
Instructions and supplementary documentation as well as the certificates (depending
on the application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Be instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Designated use
Application and measured materials
Depending on the version ordered, the device can also be used with potentially explosive,
flammable, poisonous or oxidizing materials.
Devices that are used in hazardous areas have corresponding labels on their nameplates.
To ensure that the device remains in proper condition for the operation time:
‣Only use the 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 can be put to its intended use in hazardous
areas.
‣If the device is not operated at an atmospheric temperature, compliance with the
relevant basic conditions specified in the relevant device documentation is absolutely
essential.
‣Protect the 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.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to local/national
regulations.

Prothermo NMT532 Basic safety instructions
Endress+Hauser 9
2.4 Operational safety
Risk of injury!
‣Operate the device in proper technical conditions and fail-safe conditions only.
‣The plant owner-operator is responsible for interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, contact your Endress+Hauser Sales Center.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe local/national regulations pertaining to repair of an electrical device.
‣Use only original spare parts and accessories from Endress+Hauser.
Ex-area
Observe the following notes to eliminate the risk of danger to persons or the facility when
the device is used in Ex-areas (e.g. explosion protection, pressure equipment safety):
‣Check the model nameplate to ensure that the ordered device is explosion proof.
‣Observe the specifications in the separate supplementary documentation attached to
these Instructions.
2.5 Product safety
This device was designed in accordance with GEP (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 the general safety standards and legal requirements.

Product description Prothermo NMT532
10 Endress+Hauser
3 Product description
3.1 Product design
Prothermo NMT532 is a multi-spot Pt100 average thermometer combined with a local
HART signal converter to meet the demand of temperature measurement for inventory
control applications. NMT532 consists of Max. 6 temperature elements which have
different length with fixed (2m or 3m) interval. It is best suited connected to Proservo
NMS5, NMS8x, or Endress+Hauser Micropilot S-series radars and the Tank Side Monitor
NRF590. Mounted on the tank top, NMT532 provides temperature information on the two
wire, intrinsically safe (i.s.) powered local HART loop.
3.2 Technical data
Item Details
Application NMT532 performs precise liquid and gas phase average temperature measurement in bulk storage tank applications.
• Flange installation: Standard 50.8 mm (2 in)
• temperature measurement range: Overall18.5 m (60.70 ft)
Measuring principle Temperature measurement
• Up to 6 temperature elements spaced evenly over the length of the flexible tube
• Pt100, IEC 60751/DIN EN 60751 Class A temperature elements
Measured variable Temperature conversion range: –200 to 100 °C (–328 to 212 °F)
Measuring range –200 to 100 °C (–328 to 212 °F)
Output signal Local HART protocol (multi drop local HART loop connection)
Alarm signal Error information can be accessed via the following interfaces and transmitted digital protocol
• NRF590 (BA00256F, BA00257F)
• NMS5 (BA00401G)
• NMS8x (BA1456G, BA1459G, BA1462G)
• NMR8x (BA01450G, BA01453G)
• NRF81 (BA01465G)
Local HART load Minimum loading for local HART circuit: 250 Ω
Cable entry • Thread NPT1/2
• Thread M20
Supply voltage DC 16 to 30 V: Ex ia
Power consumption 6 mA
Measured value
resolution
• Temperature: ≤ 0.1 °C (0.18 °F)
• WB: ≤ 0.1 mm (0.004 in)
Maximum
measurement error
The values below represent performances under the reference conditions (including linearity, repeatability, hysteresis).
Conversion accuracy
Temperature Standard spec. ± 0.1 °C (0.18 °F)
Probe system
Temperature Standard spec. ± 0.15 °C + 0.002 °C x |t| (0.27 °F + 0.0036 °F |t|)
IEC 60751 / DIN EN 60751 / JIS C1604 Class A temperature element
Overall accuracy
Temperature Standard spec. Conversion accuracy ± 0.1 °C (0.18 °F) + Environmental effect ± 0.05 °C (0.09 °F) +
Class A temperature element ± 0.15 °C + 0.002 °C x |t| (0.27 °F + 0.0036 °F x |t|)
Ambient
temperature
–40 to 85 (–40 to 185)
Storage temperature –40 to 85 (–40 to 185)
Climate class DIN EN 60068-2-38 (test Z/AD)

Prothermo NMT532 Product description
Endress+Hauser 11
Item Details
Protection class IP66/68 NEMA4X/6P:housing with temperature probe
Electromagnetic
compatibility
When installing the probes to metal or concrete tanks and when using a coax probe:
• Interference emission according to EN 61326, Electrical Equipment Class B
• Interference immunity according to EN 61326, Annex A (Industrial)
Process temperature
range
Temperature probe: –20 to 100 °C (–4 to 212 °F)
Process pressure Atmospheric pressure (absolute pressure 1 bar, 100 kPa, 14.5 psi)
• Pressure tank: If the pressure inside the tank exceeds the process pressure shown above, install a stilling well
(protective tube) without holes or slits in the NMT532 to protect the probe from the pressure.
• Static pressure: Because NMT532 has undergone an airtightness test at an absolute pressure of 7 bar, it can withstand
static pressure head in the 50 m (164 ft) range in petroleum/chemical product applications.
Data transmission • Minimum cable diameter: #24 AWG
• Cable type: Twist pair with a shield
Weight Approx. 8 kg
Conditions
• Number of elements: 6 points
• Temperature probe: 11.5 m (37.72 ft)
• Flange: NPS 2" Cl.150 RF, 304 flange ASME B16.5
Material • Temperature measurement elements: Class A Pt100, IEC60751/DIN EN60751/JISC1604
• Housing: Aluminum die cast
• Temperature probe: SUS316, SUS316L flexible tube (refer to "Dimension")
Process connection • NPS 2" Cl.150 RF, 304 flange ASME B16.5
• DN50 PN10 B1, 304 flange EN1092-1 (DIN2527 C)
CE approval By attaching the CE mark, Endress+Hauser confirms that the instruments have passed the required tests.
External standards
and guidelines
EN 60529 Protection class of housing (IP-code)
EN 61326 Emissions (equipment class B), compatibility (appendix A – industrial area)
Ex approvals ATEX II 1/2 G Ex ia IIB T4-T6 Ga/Gb
IEC Ex ia IIB T4- T6 Ga/Gb
FM C/US IS Cl. I, Div. 1, Gr. C, D, T6, T4
IS Cl. I, Zone 0, AEx ia IIB, T6, T4
NI Cl. I, Div. 2, Gr. C, D, T6, T4
NEPSI Ex ia IIB T4- T6 Ga/Gb

Product description Prothermo NMT532
12 Endress+Hauser
3.3 Description of functions
The NMT532 is compact and economical. The average temperature sensor consists of six
Pt100 elements which have fixed interval of 2 m (6.57 ft) or 3 m (9.84 ft) from the next
sensor. Temperature data is transmitted to the NRF560, NRF81, NMS5, NMS8x, or
NMR81x via an intrinsically safe (i.s.) 2-wire local HART signal.
3.3.1 NMT532 Ex ia and NMS8x Exd [ia] combination
The connection of NMT532 shown below is only available for connection with NMS5 or
NMS8x.
b c
a e
d
f
3
2
1
A0038539
 1 NMS8x and NMS532 system design
a Fieldbus protocol
b Power supply
c Local HART (Ex i) loop (data transmission)
d Level
e Gas temperature
f Liquid temperature
1 Tankvision
2 NMS8x
3 NMT532
Typical application of NMT532 and NMS8x
NMT532 is used most effectively with NMS8x to provide average temperature, level,
interface, and density measurement. All the necessary configuration and parameter
settings for NMT532 are performed via either NMS5, NMS8x, or FieldCare. NMT532
receives liquid level data from NMS5 or NMS8x, then calculates liquid and gas phase
average temperature. Calculated data and basic information including raw data for each
temperature element and device status are transmitted to NMS5 or NMS8x.
All gathered data in the field interface unit are sent to inventory management
software (Tankvision) or to NMS8x, NMS5x, NMS7, NMR8x, NRF8x or NRF590.

Prothermo NMT532 Product description
Endress+Hauser 13
3.3.2 NMT532 Ex ia and Micropilot FMR S-series combination
Typical application of NMT532 converter + temperature probe
Temperature and level measurement with data collection and calculations via NRF81
allows for optimal inventory control. Basic functionality of NMT532 is displayed and
configured on NRF81. Detailed NMT532 functionality and data access can be performed
by FieldCare. NMT532 receives radar level data from NRF81 and then calculates liquid and
gas phase average temperature. Calculated and standard data including temperature
element raw data and device status are transmitted to NRF81.
All gathered data in the field interface unit are sent to inventory management
software (Tankvision) or to NMS8x, NMS5x, NMS7, NMR8x, NRF8x or NRF590.
2
3
1
a
b
c
d
f
e
4
g
h
A0038587
 2 NMT532 Ex ia and NRF590 Ex d [ia] combination
a FMR power supply (DC/Ex i)
b Local HART (Ex i) loop (data transmission)
c Gas temperature
d Level
e Liquid level temperature
f Water
g Fieldbus protocol
h Power supply
1 FMR540
2 NMT532
3 NRF81/NRF590
4 Tankvision

Incoming acceptance and product identification Prothermo NMT532
14 Endress+Hauser
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 label 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 any one of these conditions is not met, contact your Endress+Hauser Sales Center.
4.2 Product identification
The following options are available for the identification of the device:
• Nameplate
• Extended order code with a breakdown of the device features on the delivery note
• Enter serial numbers from nameplates into the W@M Device Viewer
(www.endress.com/deviceviewer); all information on the device will be displayed.
• Enter serial numbers from 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 on the device will be displayed.
For an overview of the scope of the relevant Technical Documentation included with the
product, 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 Nameplate
PROTHERMO
1
2
3
4 ( )イ
5
4 ( )ロ
Serial no.
L = mm
Span Mfg.
Yamanashi 406-0846 NP-2162-5
A0038484
 3 NMT532 Nameplate
1 Order code
2 Serial number
3 Temperature probe length
4 Temperature measurement range
5 Manufacturing date

Prothermo NMT532 Incoming acceptance and product identification
Endress+Hauser 15
PROTHERMO NMT532
Ex ia IIB T Ga/Gb
ATEX II 1/2 G
KEMA 03 ATEX 1448 X
Ambient temperature: -40 °C ～
Ui < 30 V li < 120 mA Pi < 1 W
Ci = 7.9 nF Li = 48 µH
Warning:
Don’t modify parts and circuits of this instrument.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan NP-2560-6
0044
IP65, NEMA 4X
1
2
A0038588
 4 ATEX approval Ex ia nameplate
1 Temperature class
2 Ambient temperature
PROTHERMO NMT532
Ex ia IIB T Ga/Gb
IECEx KEM 10.0058
Ambient temperature: -40 °C ～
Ui < 30 V li < 120 mA Pi < 1 W
Ci = 7.9 nF Li = 48 µH
Warning:
Don’t modify parts and circuits of this instrument.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan NP-2625-1
0044
IP65, NEMA 4X
1
2
A0038589
 5 IEC approval nameplate
1 Temperature class
2 Ambient temperature
PROTHERMO NMT532
Ex ia IIB T Ga/Gb
GYJ16.1080
Ambient temperature: -40 °C ～
Ui < 30 V li < 120 mA Pi < 1 W
Ci = 7.9 nF Li = 48 µH
Warning:
Don’t modify parts and circuits of this instrument.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan NP-2698-1
0044
IP65, NEMA 4X
1
2
XA01260G-*/08
A0038590
 6 NEPSI approval nameplate
1 Temperature class
2 Ambient temperature

Incoming acceptance and product identification Prothermo NMT532
16 Endress+Hauser
PROTHERMO NMT532
Supply circuit; Ui < 30 V li < 120 mA Pi < 1 W
Ci = 6.6 nF Li = 48 µH
Warning:
- Don’t modify parts and circuits of this instrument.
- Avoid electrostatic charge at the plastic surface.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan NP-2556-3
0044
Type 4X
1
Ambient temperature: -40 °C ～
2
C : IS Cl. I, Div. 1, Gp. C,D T*
IS Cl. I, Zone 0, Ex ia IIB T* Ga
US: IS Cl. I, Div. 1, Gp. C,D T*
Cl. I, Zone 0, AEx ia IIB T* Ga
NI Cl. I, Div. 2, Gp. C,D T*
C :FM17CA0088
US:FM17US0168 T* = T
Install per control drawing
C: Ex462-875-2
US: Ex461-852-2
PROTHERMO NMT532
Circuit d'alimentation; Ui < 30 V li < 120 mA Pi < 1 W
Ci = 6.6 nF Li = 48 µH
Warning:
- Ne modifiez pas les pièces et les circuits de cet instrument.
Évitez la charge électrostatique sur la surface plastique.
Endress+Hauser Yamanashi Co., Ltd
Yamanashi 406-0846
Made in Japan NP-2732
0044
Type 4X
1
Température ambiante: -40 °C ～
2
C : IS Cl. I, Div. 1, Gp. C,D T*
IS Cl. I, Zone 0, Ex ia IIB T* Ga
US: IS Cl. I, Div. 1, Gp. C,D T*
Cl. I, Zone 0, AEx ia IIB T* Ga
NI Cl. I, Div. 2, Gp. C,D T*
C :FM17CA0088
US:FM17US0168 T* = T
Installation par dessin de contrôle
C: Ex462-875-2
US: Ex461-852-2
AB
A0038591
 7 FM C/US approval nameplate
A FM C/US for English
B FM C/US for France
1 Range of measurement temperature
2 Maximum ambient temperature
4.3 Manufacturer contact address
Endress+Hauser Yamanashi Co., Ltd.
862-1
Mitsukunugi, Sakaigawa, Fuefuki, Yamanashi, Japan
Address of the manufacturing plant: See nameplate.
4.4 Storage and transport
4.4.1 Storage conditions
• Storage temperature: –40 to +85 °C (–40 to 185 °F)
• Store the device in its original packaging.
4.4.2 Transport
NOTICE
The housing may become damaged or dislodged.
Risk of injury
‣Transport the device to the measuring point in its original packaging or hold by the
process connection.
‣Do not fasten lifting devices (hoisting slings, lifting eyes etc.) at the housing; instead,
secure it to the process connection. Take into account the center of gravity of the device
in order to avoid unintended tilting.
‣Comply with the safety instructions, transport conditions for devices over 18 kg (39.6
lbs) (IEC61010).

Prothermo NMT532 Incoming acceptance and product identification
Endress+Hauser 17
NOTICE
Risk of injury
‣Transport the measuring device to the measuring point in its original packaging.
‣Take into account the center of gravity of the device in order to avoid unintended
tilting.
‣Comply with the safety instructions, transport conditions for devices over 18 kg (39.6
lbs) (IEC61010).

Installation Prothermo NMT532
18 Endress+Hauser
5 Installation
5.1 Dimensions of NMT532
Ø10 (0.39)
Ø26 (1.02)
142.5 (5.61)
1
2
3
4
215 (8.46)
A0038592
 8 Dimensions of NMT532. Unit of measurement mm (in)
1 SUS304
2 Temperature probe (SUS316L) (see tips below.)
3 Bottom hook (SUS316)
4 SUS316
The specifications of temperature probe vary depending on the tank height.

Prothermo NMT532 Installation
Endress+Hauser 19
5.2 Position of NMT532 element No. 1 based on the
installation method
NMT532 - + + + + A
100 (3.94)
a
NMT532 - + + + + C
400
(15.75)
NMT532 - + + + + D/F NMT532 - + + + + B
A0038597
 9 Element No. 1 position
a Height below the flange to the end of the temperature probe for all types of NMT532
5.3 Unpacking
Unpack NMT532 with multiple people. If one person unpacks NMT532, the temperature
probe may become bent or twisted.
A0038502
 10 Unpacking NMT532

Installation Prothermo NMT532
20 Endress+Hauser
5.4 Flexible tube handling
Do not hold the flexible tube at a single point and lift the sensor. This may cause the
system to malfunction.
A0038593
 11 Flexible tube
When winding the flexible tube, keep the diameter of the tube at a minimum of
600 mm (23.62 in) or more. When installing the temperature probe onto a tank or if it is
necessary to bend the temperature probe, ensure that the bent portion is at least R =
300 mm (11.8 in) or more.
1
1
a
R
A0038594
 12 Installation and winding of a flexible tube
a 600 mm (23.62 in) or more
R 300 mm (11.8 in) or more
1 Temperature probe
2 Element protection pipe
If the bend in the flexible tube is made with R = 300 mm (11.8 in) or smaller, it may
damage the tube and elements.