Endress+Hauser NMT539 Specifications
Technical Information
Prothermo NMT539
Intrinsically safe multi-signal converter with precision average temperature
and water bottom sensor for inventory control and custody transfer applicatons
Applications
The Prothermo NMT 539 is based on API(American
Petroleum Institute) Manual of Petroleum
Measurement Standard, Chapter 7, and enables high
accuracy temperature measurement. At the same time, it
is an intelligent average temperature sensor for tank
gauging with an optional WB capacitance sensor at the
bottom of the temperature probe.
For average temperature measurement, it consists of
precision multi-spot Pt100 elements.
The NMT539 is a highly capable solution that provides
both constant average temperature data and water
interface data via local HART
For accurate inventory measurement, it is best suited
connected to Endress+Hauser’s Proservo NMS5/NMS7
or Tank Side Monitor NRF590 with Micropilot radar.
®
communication.
Features
• Intrinsically safe device allowing for the safest
electrical configuration possible.
• Available in four different versions based on customer
requirements:
– Converter Only
– Converter and Temperature probe
– Converter, temperature and water bottom (WB)
probe
• Converter is compatible with various element types
in third party manufacturer temperature probes.
• Variety of process connections and cable entries
available to meet worldwide classifications.
TI00042G/08/EN/14.11
71136671
Prothermo NMT539
Table of Contents
Function and system design . . . . . . . . . . . . . . . . . . . . . . . . . 3
Measurement system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ATEX, FM, CSA...Ex i combination with Proservo NMS5 . . . . . . 5
NMT 539 Converter + Temp. probe version . . . . . . . . . . . . . . . 5
ATEX, FM, CSA, TIIS ...
Ex i combination with Tank Side Monitor NRF 590 . . . . . . . . . . 6
NMT 539 Converter + Temp. + WB version . . . . . . . . . . . . . . . 6
TIIS...Ex d[ia] combination with Digital transmitter TMD1 . . . . . 7
TIIS...Ex d[ia] combination with Servo gauge TGM5 . . . . . . . . . . 8
TIIS...Ex i combination with Proservo NMS5/NMS7 (Ex d)
and Prothermo NMT539 (Ex i, high temp. specification) . . . . . . 8
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Measured variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compatible element (Converter only version) . . . . . . . . . . . . . . 9
Number of elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Alarm signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Auxiliary energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Load HART
Cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 11
Temperature accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
WB accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . 11
Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
New module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
All-in-one program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operating condition : Installation . . . . . . . . . . . . . . . . . . . . . 12
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Process connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation height adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
WB blocking distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Recommended installation height . . . . . . . . . . . . . . . . . . . . . . 13
Recommended still pipe installation . . . . . . . . . . . . . . . . . . . . . 14
Installation equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Operating condition : wiring . . . . . . . . . . . . . . . . . . . . . . . . 17
TIIS Ex d[ia] wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Example of Grounding cable construction (TIIS Ex d[ia]) . . . . . 17
Connecting diagram (TIIS Ex d[ia]) . . . . . . . . . . . . . . . . . . . . . . 18
Operating condition: terminal connection . . . . . . . . . . . . . . 19
Ex ia NMT539 terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
ATEX, FM, CSA ... Ex d[ia] Proservo NMS5 terminal . . . . . . . . 19
TIIS Ex d[ia] Prothermo NMT539 terminal . . . . . . . . . . . . . . . . 20
®
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ex d NMS5 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TGM5/TMD1 terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Terminal connection on the Tank Side Monitor NRF590 . . . . . . 21
Operating condition : Environment . . . . . . . . . . . . . . . . . . . 22
Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Climate class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 22
Operating condition : Process . . . . . . . . . . . . . . . . . . . . . . . 22
Process temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Process pressure limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Data transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mechanical construction . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Type 1: Converter only version . . . . . . . . . . . . . . . . . . . . . . . . . 23
Type 1: Measuring function . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Type 2: Converter only version . . . . . . . . . . . . . . . . . . . . . . . . . 24
Type 2: Measuring function . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Converter + average temperature probe version . . . . . . . . . . . . 25
Measuring function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
W&M function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Converter + average temperature probe
+ WB probe version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Measuring function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
WB probe design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Operation using ToF Tool, FieldCare . . . . . . . . . . . . . . . . . . . . 27
Certificates and approvals . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CE approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Ex approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
PTB W&M approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
External standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . 28
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Anchor weight (high profile, D120)
mounting attachment option: B . . . . . . . . . . . . . . . . . . . . . . . . 31
Anchor weight (low profile, hexagon H41)
mounting attachment option: C . . . . . . . . . . . . . . . . . . . . . . . . 31
Wire hook, Top anchor mounting attachment option: D,F . . . . . 32
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Stainless Steel conversion table . . . . . . . . . . . . . . . . . . . . . . . . . 34
Endress+Hauser 2
Prothermo NMT539
Function and system design
Measurement system The Prothermo NMT 539 is available in four different versions:
• Converter only
• Converter + Average temperature probe
• Converter + Average temp probe + Water bottom probe
The converter only version can be retrofitted without modifications onto existing third party average
temperature probes, such as Whessoe Varec 9909 and 1700 and Weed Beacon MW type probes. The average
temperature probe + converter inherits all the functionality of the former Prothermo NMT 535/536/537
series. The average temperature + WB + converter is the ultimate multi-function sensor, transmitting
temperature and water interface level data along only one pair of local HART
Proservo NMS5 ,TGM5, TMD1or NRF 590 Tank Side Monitor.
NMT 539 + WB operation principle (Converter + Temp + WB probe version)
®
signal cables to the host the
local HART®
communication
WB sensor signal FG
Isolated capacitance
signal data to
C/F module
Power Supply Module
C/F Module
Noise Filter
Converter housing
CPU Module
360mm adjustable
threaded connection
Flange
Gas
Pt100 multi-spot elements
up to 16 points
Liquid
WB sensor coaxial
signal cable
Max. 2 Pt100 elements
can be inserted in
WB sensor
Capacitance WB sensor
Note!
Different types of NMT 539, including "Converter only," "Coverter + average temperature" are simpler versions
of the "Converter + WB + temperature" probe.
Endress+Hauser 3
System design
Host application
Others
System
Data management
Field interface
Field process
Temperature
Level gauge
Pressure gauge
liquid /gas temperature
Level
Prothermo NMT539
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 additional
application requirements, contact your local Endress+Hauser representative.
4 Endress+ Hauser
Prothermo NMT539
Liquid Level
Power (AC/DC)
NMS5
NRF560
(Data transmission)
Liquid & Gas
Temperature
NMT 539
Fieldbus Protocol
Power (AC/DC)
Tankvision
Tank scanner
Ex d Local HART
®
Loop
(Data transmission
& Remote control
Tankvision
Host link
Tankvision
Data Concentrator
Communication to
Host system
local HART® (Ex i)Loop
ATEX, FM, CSA...Ex i
combination with Proservo
NMS5
NMT 539 Converter + Temp.
probe version
Note!
NMT539 connection on the drawing is only available to connect with NMS Ex d[ia].
The Prothermo NMT 539 is the successor of the former NMT 535 Ex i version. For proper migration, the NMT
539 has inherited all the functionality and specifications of the NMT 535, including process connections, cable
entries and wiring method.
Since the Proservo NMS5 already provides water interface measurement, the NMT 539 Converter + Average
temperature may be the best version when used in combination with the Proservo. When the Converter + WB
+ Average temperature version is used in combination with the Proservo, the product in the tank will be
thoroughly managed with level, continuous average temperature and water interface measurement.
Most configuration and parameter settings for the NMT539 can be performed via the Proservo NMS5
programming matrix.
The NMT 539 receives liquid level data from the Proservo, 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 the Proservo.
Note!
Since the Proservo is a multi-functional device (measurement and data transmission), the Promonitor NRF 560
acts as a tank side remote data indicator and controller for Proservo.
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.
Endress+Hauser 5
ATEX, FM, CSA, TIIS ... Ex i
Liquid Level
Power (AC/DC)
FMR 533
NRF590
NMT 539
(Data transmission)
Liquid & Gas
Temperature
Water interface
(WB)
FMR Power
(DC,Ex i)
Fieldbus Protocol
Tankvision
Tank scanner
Tankvision
Host link
Tankvision
Data Concentrator
Communication to
Host system
Ex i local HART
®
Loop
combination with Tank Side
Monitor NRF 590
Prothermo NMT539
NMT 539 Converter + Temp.
+ WB version
The NMT 539 Converter + Temp. + WB is utilised effectively in combination with radar level gauging. Water
interface, temperature and level measurement, with data collection and calculations via the NRF 590, allow
for optimal inventory control. Basic functionality of the NMT 539 is displayed and configured on the NRF 590.
Detailed NMT 539 functionality and data access can be performed by the ToF tool or FieldCare.
The NMT 539 receives radar level data from the NRF 590 and then calculates liquid and gas phase average
temperature. Calculated and standard data, including temperature element raw data and device status, are
transmitted to the NRF 590.
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.
6 Endress+ Hauser
Prothermo NMT539
TIIS...Ex d[ia]
combination with Digital
transmitter TMD1
local HART® (Ex d ) Loop
Average temperature
Prothermo NMT539
Digital
transmitter
TMD1
Float gauge
LT11
Field Protocol
Local HART
®
Promonitor NRF560
Tankvision
Host link
Communication to
Host system
Tankvision
Tank scanner
(Ex d ) Loop
Tankvision
Data Concentrator
®
Average temperature data is transmitted to transmitter TMD1 via local HART
communication.
Note!
If NMT539 WB probe and NRF560 are used together, confirm supply voltage to TMD1 is stable 100 VAC or
more.
Endress+Hauser 7
TIIS...Ex d[ia]
Power (AC/DC)
Servo gauge TGM5
Ex d local HART
®
loop
Ptothermo NMT539
Ex d Local HART
®
loop
(Data transmission)
Power (AC/DC)
Promonitor NRF560
Level
liquid/gas
temp.
Fieldbus Protocol
Tankvision
Tank scanner
Tankvision
Host link
Tankvision
Data Concentrator
Communication to
Host system
Proservo NMS5
Prothermo NMT539
(high temp. sepc.)
Ex d local HART
®
loop
Ex d local HART
®
loop
(data transmission)
Power(AC/DC)
Promonitor NRF560
Level
Liquid /gas
temperature
Ex i local HART® loop
Ex i/Ex d barrier NAB560
Tankvision
Tank scanner
Tankvision
Host link
Tankvision
Data Concentrator
Communication to
Host system
combination with Servo gauge
TGM5
Prothermo NMT539
TIIS...Ex i
combination with Proservo
NMS5/NMS7 (Ex d) and
Prothermo NMT539 (Ex i,
high temp. specification)
Note!
If NMT539 WB probe and NRF560 are used together, confirm supply voltage to servo gauge is stable 100VAC
or more.
Prothermo NMT539 high temperature specification is Ex i output. When using with Proservo NMS5/NMS7,
Barrier Box NAB560 is required.
8 Endress+ Hauser
Prothermo NMT539
Input
Measured variables Temperature measuring range:
Temperature conversion : -200 ...+235 °C (-328 ...+455 °F), (-170...+235°C TIIS)
Standard : -40...+100°C (-20...+100°C TIIS)
Wide range : -55...+235°C (-20...+235°C TIIS)
Cryogenic : -170...+60°C
Probe length : 40m or less
Water interface level (water bottom) range
Standard : 1m ...2m (3.3 ...6.6 ft)
Compatible element
(Converter only version)
Number of elements 2 to16 can be connected
Pt100
Cu90
Cu100
PtCu100
JPt100
In case of TIIS, it is only Pt100 and JPt100.
Note!
NMT 539 Converter + Temp. version has only Pt100 elements installed. The element types above can be
utilised in third party temperature probes, such as the Endress+Hauser 9909, 1700 or Weed Beacon MWR.
Other manufacturer multi-resistant and multi-spot average temperature probes may be compatible.
Output
Communication 2 wire, Endress + Hauser local HART® protocol to host commanding gauge
• Proservo NMS5/NMS7
• Tank Side Monitor NRF 590
• Digital Transmitter TMD1
• Servo Gauge TGM5
Alarm signal Error information via the following interface and transmission digital protocol. Please refer to Operating
Instructions of each device.
• Proservo NMS5/NMS7 ... BA1001N(BA01001G)
• Tank Side Monitor NRF590 ... BA256F(BA00256F), BA257F(BA00257F)
®
Output signal •local HART
Connection • Proservo NMS5/NMS7
• Tank Side Monitor NRF590
• Digital Transmitter TMD1
• Servo Gauge TGM5
protocol
Endress+Hauser 9
Auxiliary energy
Load HART® Minimum loading for local HART® circuit : 250Ω
Cable entry Wiring of the NMT 539 must meet explosion proof or intrinsically safe requirements.
The following cable entries are available:
• Thread G 1/2
• Thread NPT 1/2
• Thread M 20
Only G1/2 is selectable on TIIS Ex d[ia] and 2 cable glands SXC-16B are attached.
Supply voltage DC16 ... 30V : Ex ia
DC20 ... 24V : TIIS Ex d[ia] connectable only TGM5, TMD, NMS...Ex d
Power consumption Ex ia:
6mA (Temperature measurement)
12mA (WB measurement)
TIIS, Ex d[ia]:
8mA (Temperature measurement)
14mA (WB measurement)
Prothermo NMT539
10 Endress+ Hauser
Prothermo NMT539
Performance characteristics
Temperature accuracy ±0.1°C or better (under the reference condition)*1
Reference condition*1:
Accuracy of RTD - Temperature conversion. Accuracy measurement shall be conditioned with precisely cali-
brated dial resistor or IEC class A Pt100 ohm temperature element.
WB accuracy ±2mm or less (under the reference condition)*2
Reference condition*2:
Measurement condition is based on 80% span of 1m probe in water / air interface at 25°C.
εr)=2.1
Reference operating
conditions
The Factory default is adjusted based on DC (
• Temperature = +25°C(77°F) ±5 (9°F)
• Pressure = 1013 hPa (mbar) abs.(14.7 psi)±20 hPa (mbar) (0.3 psi)
• 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 class A standard)
– WB: ±2mm *2
New module The Prothermo NMT 539 employs a completely new electronic module compared to the previous NMT 535.
NMT 539 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 with Capacitance board) 5
Current consumption
(Converter + temp. probe)
6mA@16VDCEx ia
8mA@16VDCEx d[ia]
10mA@16VDC
All-in-one program The powerful processor enables multi-function calculations under a single program. This means that there is
no need for a variety of spare parts.
RTD Temperature calculation
The main CPU board now has all the required data processing functionality, including RTD - local HART
®
conversion. With the NMT 538, various programs were required depending on temperature element
characteristics, such as Pt100, Cu90, Cu100 and PtCu100. The new NMT 539 has all the programs in one
powerful processor.
®
Capacitance - local HART
signal conversion
A separate CF (Capacitance - Frequency) board can be connected directly to the CPU board when NMT 539
is equipped with WB sensor.
Endress+Hauser 11
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