Endress+Hauser Prothermo NMT532 Manual

Products Solutions Services
TI00049G/08/EN/19.15
71308674
Technical Information
Prothermo NMT532
Intrinsically Safe Multi-signal Converter with
Precision Average Temperature Sensor for In-
ventory Control
Application
Prothermo NMT532 consists of an intelligent local HARTsignal converter and average
temperature sensor.
For average temperature measurement, it consists of
precision multi-spot Pt100 (Max.6) elements which have fixed interval (2m or 3m).
NMT532 is a highly capable solution for a variety of tank gauging applications and pro-
vides constant average temperature data via local HART communication.
For accurate inventory measurement, it is best suited
connected to Tank Side Monitor NRF590 with Micropilot radar tank gauge or Proservo
NMS5.
Features and Benefits
•HighAccuracy
• Intrinsically Safe Device Allowing for Safest Electrical Configuration Possible
• Compatible with FieldCare
• Simple and Economical
• Compact Size and Weight
• High-reliability and Easy Installation
• Maintenance Free

Prothermo NMT532
2Endress+Hauser
Table of Contents
Important Document Information . . . . . . . . . . . . . . . . . . . . .3
Notes on Safety Conventions and Symbols . . . . . . . . . . . . . . . . 3
Function and System Design . . . . . . . . . . . . . . . . . . . . . . . . . .4
Measuring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connection with NRF590 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
NMT532 + FMR53x + NRF560 . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connection with NMS5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
NMT532 + NMS5+ NRF560 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Input and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Measured Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Number of Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Alarm Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Auxiliary Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Load HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overvoltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 9
Temperature Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Temperature Measuring Range . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Reference Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maximum Measured Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
New Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating Condition: Environment and Process . . . . . . . 10
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Climate Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Degree of Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Process Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Process Pressure Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Data Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operating Condition: Installation . . . . . . . . . . . . . . . . . . . . 11
Process Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Recommended Installation Height . . . . . . . . . . . . . . . . . . . . . . 11
Recommended Stilling Well Installation . . . . . . . . . . . . . . . . . 12
Installation Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Anchor Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Wire Hook+ Top Anchor & Stilling Well . . . . . . . . . . . . . . . . . 13
Mounting on Pressurized Tank . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating Condition: Terminal Connection . . . . . . . . . . . 16
NMT532 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
NMS5 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
NRF590 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mechanical Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
NMT532 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Human Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operation Using FieldCare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Certificates and Approvals . . . . . . . . . . . . . . . . . . . . . . . . . 20
CE Mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ex Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
External Standards and Guidelines . . . . . . . . . . . . . . . . . . . . . . 20
Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
NMT532 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Anchor Weight (High Profile, D120) . . . . . . . . . . . . . . . . . . . . 22
Anchor Weight (Low Profile, Hexagon H41) . . . . . . . . . . . . . . 22
Wire Hook and Top Anchor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Stainless Steel Conversion Table . . . . . . . . . . . . . . . . . . . . . . . . 25

Prothermo NMT532
Endress+Hauser 3
Important Document Information
Notes on Safety Conventions
and Symbols
Symbols for Safety Conventions
Symbols for Certain Types of Information
Symbol Meaning
A0011189-EN
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
A0011190-EN
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
A0011191-EN
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
A0011192-EN
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
Symbol Meaning
A0011182
Allowed
Indicates procedures, processes or actions that are allowed.
A0011183
Recommendation
Indicates procedures, processes or actions that are recommended.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
DANGER
WARNING
CAUTION
NOTICE

Prothermo NMT532
4Endress+Hauser
Function and System Design
Measuring System NMT532 is compact and economical. The average temperature sensor consists of six Pt100 elements
at an interval of 2 or 3 meters. Temperature data is transmitted to NRF560 or NMS5 via
intrinsically safe (i.s.) 2-wire local HART signal.
Operation Principle
Figure 1: Function and System Design
System Design
Figure 2: System Layout
Endress+Hauser offers a wide range of solutions to integrate field data into your process management
requirement.
The following diagrams describe some individual solutions according to various Ex concepts. For addi-
tional application requirements, contact local Endress+Hauser representatives.
Local HART
Communication Noise Filter
Power Supply
Module
CPU Module
Converter Housing
Flange
Gas Phase
Pt100 Multi- spot
Elements Up to 6 Points
Liquid Phase
Host Application
System
Data Management
Field Interface
NXA820
NXA83
Field Process
Temperature
Level Gauge
Pressure Gauge
Liquid /Gas Temperature
Level
Tankvision
DCS
PLC
Others

Prothermo NMT532
Endress+Hauser 5
Connection with NRF590
Figure 3: Connection with NRF590
NMT532 + FMR53x +
NRF590
Temperature and level measurement with data collection and calculations via NRF590 allows for opti-
mal inventory control. Basic functionality of NMT532 is displayed and configured on NRF590. Detailed
NMT532 functionality and data access can be performed by FieldCare.
NMT532 receives radar level data from NRF590 and then calculates liquid and gas phase average tem-
perature. Calculated and standard data including temperature element raw data and device status are
transmitted to NRF590.
All gathered data in the interface unit is sent to inventory management software, such as
Endress+Hauser tank vision, Tank computer or directly sent to the customer's specific DCS or PLC.
Fieldbus Protocol
Ex i HART Loop
(Data Transmission)
FMR Power
(DC, Ex i)
FMR 540
NMT532
Liquid Level
Liquid & Gas
Temperature
Water Interface
(WB) NRF590
Power (AC/DC)
Tankvision
sio
n

Prothermo NMT532
6Endress+Hauser
Connection with NMS5
Figure 4: Connection with NMS5
NMT532 + NMS5+ NRF560 NMT532 is used most effectively with NMS5 to provide average temperature, level, water
interface, and density measurement.
All the necessary configuration and parameter settings for NMT532 are performed via either NMS5 or
FieldCare.
NMT532 receives liquid level data from NMS5, 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.
Since NMS5 is a multi-functional device (measurement and data transmission), a Promonitor NRF560
can act as a tank side remote data indicator and controller for NMS5.
All gathered data in the interface unit is sent to inventory management software, such as
Endress+Hauser’s Tankvision, Fuelsmanager, Tank computer or directly sent to the customer's specific
DCS or PLC.
Liquid Level Power (AC/DC)
NMS5
NRF560
Ex i HART Loop
(Data Transmission)
NMT532
Ex d HART Loop
(Data Transmission
& Remote Control)
Liquid & Gas
Temperature
Power (AC/DC)
Fieldbus Protocol
Tankvision

Prothermo NMT532
Endress+Hauser 7
Input and Output
Measured Variables Liquid and gas temperature range: -20 to +100 °C (-4 to +212 °F)
Probe length: 18.5m (60.6 feet) or less
Number of Elements Maximum of 6 (2 m or 3 m interval)
Communication 2 wire, Endress+Hauser local HART protocol to host commanding gauge
•NRF590
•NMS5
Alarm Signal Error information via the following interface and transmission digital protocol. Refer to Operating
Instructions of each device.
• NMS5: BA00401G
• NRF590: BA00256F, BA00257F
Output Signal Temperature data via 2 wire intrinsically safe local HART protocol.
Connection •NMS5
•NRF590

Prothermo NMT532
8Endress+Hauser
Auxiliary Energy
Load HART Minimum loading for local HART circuit: 250Ω
Overvoltage Protection NMT532 has internal surge arrester which complies with EN/IEC 61000-4-5 (Line to Line 1.0kV).
Connect the metallic housing of the NMT532 to the tank wall or screen directly with an electrically
conductive lead to ensure reliable potential matching.
Cable Entry Wiring of NMT 532 must meet intrinsically safe requirements.
The following cable entries are available:
•ThreadNPT1/2
•ThreadM20
Supply Voltage 16 to 30V: Ex ia
Only for connection to a certified intrinsically safe circuit with the following maximum values
Power Consumption 6mA
Grounding NMT532 must be grounded to the tank potential before connection to host gauge. All ground connec-
tions must be compliant with local and company regulations, and checked before the equipment is
commissioned.
Ui = 30 V
Ii = 120mA
Pi = 1 W
Internal capacitance Ci = 7.9 nF (ATEX, IECEx, CSA, NEPSI)
6.6 nF (FM)
Internal inductance Li = 48 H

Prothermo NMT532
Endress+Hauser 9
Performance Characteristics
Temperature Accuracy ± 0.1°C or better (at reference condition)
*Reference
Accuracy of RTD - Temperature Conversion
Temperature Measuring
Range
-20 to +100°C (-4 to +212°F)
Reference Operating Condi-
tions
• Temperature = +25°C(77°F) ±5 (9°F)
• Pressure = 1013mbar abs. ±20mbar abs. (1013hPa abs. ±20hPa abs.,14.7 psi abs. ±0.3 psi abs.)
• Relative humidity (air) = 65% ± 20%
Maximum Measured Error Typical statements for reference conditions, include linearity, repeatability, and hysteresis:
•Linearity:
– Temperature: ±0.15°C (0.27°F) + element deviation (based on IEC 60751/DIN EN 60751class A
standard)
New Module NMT 532 employs a completely new electronic module compared to the previous NMT 535.
NMT 532 NMT 535
CPU Performance 16 bit 8 bit
Clock Speed 2.7648 MHz 0.9216 MHz
Memory Capacity (RAM) 20K bytes 176 bytes
EEPROM 2K bytes 256 bytes
Flash Memory 256K bytes 16K bytes
Total # of Print Boards 4 5
Current Consumption
(Converter + Temp. Probe) 6mA@16VDCEx ia 10mA@16VDC

Prothermo NMT532
10 Endress+Hauser
Operating Condition: Environment and Process
Ambient Temperature
Range
-40 C° to +85C°(-40°F to +185°F)
Storage Temperature -40 C° to +85C°(-40°F to +185°F)
Climate Class DIN EN 60068-2-38 (test Z/AD)
Degree of Protection • Housing: IP65, NEMA 4X (Converter only, open housing: IP20)
•Probe:IP68
Electromagnetic Compatibil-
ity
• Interference Emission: EN 61326, Electrical Equipment Class B
• Interference Immunity: EN 61326, Annex A (Industrial)
Interference Emission and immunity apply to each standard shown above when installing probes in
metal and concrete tanks and when using coax probes.
Process Temperature Range Temperature probe: -20 to +100°C (-4 to 212°F)
Process Pressure Limits 1bar (100kPa, 14.5psi)
When the pressure inside the tank exceeds 1 bar (100KPa, 14.5psi), stilling well which does not have
any holes or slits must be installed.
Data Transmission 2.5mm coaxial cable & common ground
WARNING

Prothermo NMT532
Endress+Hauser 11
Operating Condition: Installation
Process Connection The following flange sizes are available:
• NPS 2" Cl.150 RF, 304 flange ASME B16.5
• DN50 PN10 B1, 304 flange EN1092-1 (DIN2527 C)
Recommended Installation
Height
Figure 5: Recommended Installation
The required bottom clearance of both the temperature probe and WB sensor varies depending on the
anchoring method. Consider the required bottom clearance when ordering NMT 532. See the recom-
mended bottom clearance in the above illustration and/or consult Endress+Hauser representatives for
further information.
The standard location of the lowest temperature element should be set at 500 mm (20") from the bot-
tom of the tank regardless of probe type.
NMT532
Ordered Installation Height: Below Flange to End of Temp. Probe
Recommended Bottom
Clearance: with Mounting
Attachment A,B,C,D :
400mm from Tank Floor
NOTICE

Prothermo NMT532
12 Endress+Hauser
Recommended Stilling Well
Installation Datum plate should be mounted on the bottom of the tank below the slotted stilling well (see ) or
located 300mm (12 inches) or more below the slotted stilling well (see ).
If the anchor weight is not used when installing stilling well, the water should fill the tank up to the
bottom from the end of the stilling well, enough to allow liquid to enter/exit the pipe.
Avoid turbulence in the water so that WB (Water Bottom) sensor will not be damaged.
Figure 6: Stilling Well, Unit of Measurement: mm (in)
Installation Equipment Contents of Anchoring Hardware: Based on The Choice of "100: Mounting Attachment"
CAUTION
B
A
WARNING
Slotted
Stilling Pipe
300 (11.81) or more
Slotted
Stilling Pipe
Datum Plate A
Datum Plate B
Max.
150 (5.91)
Max.
150 (5.91)
Slot-hole
Ø25 (0.984)
Datum Plate
Slotted Stilling Pipe
300 (11.81) or more
A
B
A:
No Installation
Material
B:
Anchor Weight
(High Profile, D120)
C:
Anchor Weight
(Low Profile,
Hexagon H41)
D:
Tension Wire +
Wire Hook +
NPT1 Top Anchor
F:
Tension Wire +
Wire Hook +
R1 Top Anchor
Converter + Temp. Probe
Bottom hook Bottom hook
Anchor weight
Sling wire
Bottom hook
Anchor weight
Sling wire
Bottom hook
Base plate
Wire hook
NPT1 top anchor
Tension wire
Bottom hook
Base plate
Wire hook
R1 top anchor
Tension wire

Prothermo NMT532
Endress+Hauser 13
Anchor Weight
Figure 7: Anchor Weight, Unit of Measurement: mm (in)
"High profile anchor weight" is the anchor method designed for converter + temperature probe.
"Low profile anchor weight" is the anchor method designed for small tank nozzle [max. 2 inches (50A)].
Temperature probes with anchor weights methods have a recommended clearance 400mm (16").
Wire Hook+ Top Anchor &
Stilling Well
Figure 8: Wire Hook, Top Anchor, Stilling Well, Unit of Measurement: mm (in)
Temperature probes with "wire hook + top anchor" and "stilling well" methods have a recommended
clearance 400mm (16").
*Refer to "Accessories" for details of anchor weight, wire hook, and top anchor.
Element Position #1
(Bottom Element)
Tank Floor
500 (19.69)
400 (15.75)
Clearance below
Temp. Sensor
High Profile Anchor Weight Low Profile Anchor Weight
Bottom Hook
Tank Floor
Stilling Well
(Min.
Ø 5.08 (2))
Ø26 (1.02)
Element Position #1
(Bottom Element)
Clearance below
Bottom Hook
500 (19.69)
400 (15.75)

Prothermo NMT532
14 Endress+Hauser
NMT532 #1 Element Position
Figure 9: #1 Element Position, Unit of Measurement: mm (in)
Mounting and Element Position of NMT532 Anchor Weight Method
Figure 10: Anchor Weight Method, Unit of Measurement: mm (in)
NMT532 - + + + + A
100 (3.94)
NMT532 All Types (Length Below Flange)
NMT532 - + + + + C NMT532 - + + + + D/F NMT532 - + + + + B
400 (15.75)
Electrical
Compartment
Flange
Uppermost
Element
Flexible Tube
Element Position #1
Ø26 (1.02)
Clearance: Bottom of
Tankto Bottom Hook
Anchor Weight
(Low Profile)
Anchor Weight
(High Profile)
500 (19.69)
400 (15.75)

Prothermo NMT532
Endress+Hauser 15
Mounting on Pressurized
Tank
Pressurized tank is required to install a stilling well to protect the probe from the pressure.
Figure 11: Stilling Well for Pressurized Tank
• When the pressure inside the tank exceeds 1 bar (100KPa, 14.5psi), a stilling well which does not
have any holes or slits must be installed.
• NMT532 is installed in the stilling well from the top of the tank nozzle.
• Cover the bottom of the stilling well and weld it to protect the probe from the pressure.
Figure 12: Welding Part of Stilling Well
NMS5
Ball Valve
Measuring
Wire
Displacer
Stilling
Well
NMT532
CAUTION
Weldin
g
Part

Prothermo NMT532
16 Endress+Hauser
Operating Condition: Terminal Connection
NMT532 Terminal
NMT532 allows an intrinsically safe HART connection only. Refer to the IS regulation for establishing
wiring & field device layout.
Figure 13: NMT532 Terminal
NMS5 Terminal Since NMT 532 is an intrinsically safe instrument, the terminal connection to
Ex i side on local HART connection is allowed on the NMS terminal housing.
Figure 14: NMS5 Terminal
Do not connect NMT532 HART communication on terminals 4 & 5 on NMS5. These terminals are
designed to connect Ex d HART communication.
NOTICE
Z1
H2- H2+ H1- H1+
Z2 Z3
AR1
H2- H2+ H1- H1+
Ground Terminal
Screened Twisted Pair
or Steel armored Wire
Temp. Data
Intrinsically Safe HART on NMT532
+ : H1 + Terminal
- : H1 - Terminal
Blind Plug
+: H2+ Terminal
- : H2 - Terminal
Metal Cable Gland Only:
Shield of HART communication
line must be grounded.
to NRF 590
+ Terminal 24, 26 or 28
- Terminal 25, 27 or 29
to NMS5/NMS7
+ Terminal 24
- Terminal 25
CAUTION
FG
4 to 20 mA
Channel 1
+
_
COM
HOIST
STOP
Operation
Contact
Input
20
21
16
19
18
17
Alarm Contact
Alarm Contact
Alarm Contact
+
_
+
_
+
_
10
15
14
13
12
11
Power Supply
AC 85 to 264V 50/60Hz
or
DC 20 to 62V AC20 to 55V
2
3
1
G
N
L
L
G
N
ARS
ARS
ARS
Alarm Contact
+
_
Non IS HART
to NRF or Others
+
_
9
8
7
6
5
4
+
_
Digital Output
Rack Bus RS485,
Serial Pulse,or HART
4 to 20 mA
Channel 2
HART
+
+
_
_
22
23
24
25
26
from NMT539
Ex i HART
CAUTION

Prothermo NMT532
Endress+Hauser 17
NRF590 Terminal
Figure 15: NRF590 Terminal
NRF590 has three sets of IS HART terminals. These three pairs are looped internally.
Do not connect signal HART lines from NMT532 to terminals 30 & 31. These terminals are designed
to supply drive power of FMR 53x series only.
24V
mA
Internally
Interconnected
As One HART
Fieldbus Loop
i.s. Module Wiring
For Micropilot
S-series Only
RTD
HART
Sensor
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
4
3
2
1
D+
S+
S-
D-
OPT1
OPT2
OPT3
OPT4
+H
-
+H
-
+H
-
+P
-
+
-
+
-
NOTICE
CAUTION

Prothermo NMT532
18 Endress+Hauser
Mechanical Construction
NMT532 Dimensions
Figure 16: NMT532 Dimensions, Unit of Measurement: mm (in)
Weight Approx. 8kg
Condition: 6 elements
Temp. probe: 11.5m
Flange: NPS 2" Cl.150 RF, 304 flange ASME B16.5
Material Elements: Class A Pt100, IEC 60751/DIN EN 60751/ JISC 1604
Housing: Aluminum die-casting
Temp. probe: SUS316, SUS316L flexible tube (refer to "Dimension")
Ø10 (0.3937)
Ø26 (1.02)
Bottom Hook
215 (8.46)
The specifications of temperature probe
vary depending on the tank height.
142.5 (5.61)
SUS304
SUS316L
SUS316
SUS316

Prothermo NMT532
Endress+Hauser 19
Human Interface
Operation Using FieldCare NMT532 can also be operated via FieldCare. These programs support
commissioning, securing of data, signal analysis, and documentation of the instruments.
FieldCare supports the following functions:
• Online configuration of transmitters
• Loading and saving of instrument data (Upload/Download)
• Documentation of measuring points

Prothermo NMT532
20 Endress+Hauser
Certificates and Approvals
CE Mark By attaching the CE mark, Endress+Hauser confirms that the instruments pass the required tests.
Ex Approval
External Standards and
Guidelines
IEC 61326 Appendix: A, Immunity according to table A-1
EN 60529
Protection class of housing (IP-code)
EN 61326
Emissions (equipment class B), compatibility (appendix A - industrial area)
Ex Approval Class
ATEX II 1/2 G Ex ia IIB T4-T6 Ga/Gb
IEC Ex ia IIB T4-T6 Ga/Gb
FM IS Class I, Div. 1, Gp. C, D, T6, T4, Class I, Zone 0, AEx ia IIB, T6, T4
CSA Ex ia Class I, Div.1, Gp. C, D, T6, T5, T4, Ex ia IIB T6, T5, T4
NEPSI Ex ia IIB T4-T6