Endress+Hauser LPGmass User manual

The refueling application flowmeter with seamless system integration
Application
• Measuring principle operates independently of physical fluid
properties such as viscosity or density
• Accurate measurement of liquefied petroleum gas in
refueling and distribution applications
Device properties
• Flow rates up to 180 000 kg/h (6 600 lb/min)
• Volume flow calculation as per API Table 53
• Robust, compact transmitter housing
• Modbus RS485
• Designed to meet application needs
Your benefits
• Excellent operational safety – reliable under extreme
ambient conditions
• Fewer process measuring points – multivariable
measurement (flow, density, temperature)
• Space‐saving installation – no in/outlet run needs
• Space‐saving transmitter – full functionality on smallest
footprint
• Fast commissioning – pre-configured devices
• Automatic recovery of data for servicing
Products Solutions Services
Technical Information
LPGmass
Coriolis flowmeter
TI01169D/06/EN/01.16
71311939

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Table of contents
Document information ....................... 3
Symbols used ................................ 3
Function and system design ................... 4
Measuring principle ............................ 4
Measuring system ............................. 4
Equipment architecture ......................... 5
Safety ..................................... 5
Input ..................................... 5
Measured variable ............................. 5
Measuring range .............................. 6
Operable flow range ........................... 6
Output ................................... 6
Output signal ................................ 6
Signal on alarm ............................... 6
Ex connection data ............................ 7
Low flow cut off .............................. 7
Galvanic isolation ............................. 7
Protocol-specific data ........................... 7
Power supply .............................. 8
Terminal assignment ........................... 8
Supply voltage .............................. 10
Power consumption ........................... 10
Current consumption .......................... 10
Power supply failure .......................... 11
Electrical connection .......................... 11
Potential equalization ......................... 12
Terminals ................................. 12
Cable entries ............................... 12
Cable specification ............................ 12
Performance characteristics .................. 13
reference operating conditions .................... 13
Maximum measured error ....................... 13
Repeatability ............................... 14
Response time .............................. 14
Influence of medium temperature .................. 14
Influence of medium pressure .................... 14
Design fundamentals .......................... 15
Installation ............................... 15
Mounting location ............................ 16
Orientation ................................ 16
Inlet and outlet runs .......................... 17
Special mounting instructions .................... 17
Mounting Safety Barrier Promass 100 ............... 17
Environment .............................. 17
Ambient temperature range ..................... 17
Storage temperature .......................... 19
Climate class ............................... 19
Degree of protection .......................... 19
Vibration resistance ........................... 19
Shock resistance ............................. 19
Shock resistance ............................. 19
Electromagnetic compatibility (EMC) ............... 19
Process .................................. 19
Medium temperature range ...................... 19
Density ................................... 19
Pressure-temperature ratings .................... 19
Flow limit ................................. 20
Pressure loss ............................... 21
Vibrations ................................. 21
Mechanical construction .................... 22
Dimensions in SI units ......................... 22
Dimensions in US units ......................... 25
Weight ................................... 28
Materials .................................. 28
Process connections ........................... 29
Surface roughness ........................... 29
Operability ............................... 29
Operating concept ............................ 29
Service interface ............................. 30
Certificates and approvals ................... 30
CE mark ................................... 30
C-Tick symbol ............................... 30
Ex approval ................................ 30
Modbus RS485 certification ..................... 31
Measuring instrument approval ................... 31
Ordering information ....................... 31
Accessories ............................... 31
Service-specific accessories ...................... 31
Supplementary documentation ............... 32
Standard documentation ........................ 32
Supplementary device-dependent documentation ....... 32
Registered trademarks ...................... 33

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Document information
Symbols used Electrical symbols
Symbol Meaning
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
Protective ground connection
A terminal which must be connected to ground prior to establishing any other
connections.
Equipotential connection
A connection that has to be connected to the plant grounding system: This may be a
potential equalization line or a star grounding system depending on national or
company codes of practice.
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
Visual inspection
Symbols in graphics
Symbol Meaning
1, 2, 3,... Item numbers
1.
,
2.
,
3.
… Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections
-
Hazardous area
.
Safe area (non-hazardous area)
Flow direction

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Function and system design
Measuring principle The measuring principle is based on the controlled generation of Coriolis forces. These forces are
always present in a system when both translational and rotational movements are superimposed.
Fc = 2 · ∆m (ν · ω)
Fc = Coriolis force
∆m = moving mass
ω = rotational velocity
ν = radial velocity in rotating or oscillating system
The amplitude of the Coriolis force depends on the moving mass ∆m, its velocity ν in the system and
thus on the mass flow. Instead of a constant rotational velocity ω, the sensor uses oscillation.
Density measurement
The measuring tube is continuously excited at its resonance frequency. A change in the mass and
thus the density of the oscillating system (comprising measuring tube and fluid) results in a
corresponding, automatic adjustment in the oscillation frequency. Resonance frequency is thus a
function of medium density. The microprocessor utilizes this relationship to obtain a density signal.
Temperature measurement
The temperature of the measuring tube is determined in order to calculate the compensation factor
due to temperature effects. This signal corresponds to the process temperature and is also available
as an output signal.
Measuring system The device consists of a transmitter and a sensor. If a device with Modbus RS485 intrinsically safe is
ordered, the Safety Barrier Promass 100 is part of the scope of supply and must be implemented to
operate the device.
The device is available as a compact version:
The transmitter and sensor form a mechanical unit.
Transmitter
Device versions and materials:
Compact, aluminum coated:
Aluminum, AlSi10Mg, coated
Configuration:
Via operating tools (e.g. FieldCare, DeviceCare)
A0016693
Sensor
LPGmass • Simultaneous measurement of flow, density and temperature (multi-
variable)
• Nominal diameter range: DN 8 to 50 (³⁄₈ to 2")
• Materials:
– Sensor: stainless steel, 1.4301 (304)
– Measuring tubes: stainless steel, 1.4539 (904L)
– Process connections: stainless steel, 1.4404 (316/316L)
• Limiting medium pressure range: max. 100 bar (1 450 psi)
A0029466

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Safety Barrier Promass 100
A0016763
• Dual-channel safety barrier for installation in non-hazardous locations
or zone 2/div. 2:
– Channel 1: DC 24 V power supply
– Channel 2: Modbus RS485
• In addition to current, voltage and power limitation, it offers galvanic
isolation of circuits for explosion protection.
• Easy top-hat rail mounting (DIN 35 mm) for installation in control
cabinets
Equipment architecture
5
6
7
21
3 4
A0021848
 1 Possibilities for integrating measuring devices into a system
1 Control system (e.g. PLC)
2 Modbus RS485
3 Safety Barrier Promass 100
4 Modbus RS485 intrinsically safe
5 Non-hazardous area
6 Non-hazardous area and Zone 2/Div. 2
7 Hazardous area and Zone 1/Div. 1
Safety IT security
We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any inadvertent
changes to the device settings.
IT security measures in line with operators' security standards and designed to provide additional
protection for the device and device data transfer must be implemented by the operators themselves.
Input
Measured variable Direct measured variables
• Mass flow
• Density
• Temperature
Calculated measured variables
• Volume flow
• Corrected volume flow
• Corrected volume

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Measuring range Measuring ranges (not custody transfer mode)
DN Measuring range full scale values min(F) to max(F)
[mm] [in] [kg/h] [lb/min]
8 ³⁄₈ 0 to 2 000 0 to 73.5
15 ½ 0 to 6 500 0 to 238
25 1 0 to 18 000 0 to 660
40 1½ 0 to 45 000 0 to 1 650
50 2 0 to 70 000 0 to 2 570
The values of the corresponding custody transfer certificate apply in custody transfer mode.
Recommended measuring range
"Flow limit" section →  20
Operable flow range Over 1000 : 1.
Flow rates above the preset full scale value do not override the electronics unit, with the result that
the totalizer values are registered correctly.
Output
Output signal Modbus RS485
Physical interface In accordance with EIA/TIA-485-A standard
Terminating resistor For device version used in intrinsically safe areas: integrated and can be activated
via DIP switches on the Safety Barrier Promass 100
Signal on alarm Depending on the interface, failure information is displayed as follows:
Modbus RS485
Failure mode Choose from:
• NaN value instead of current value
• Last valid value
Interface/protocol
• Via digital communication:
Modbus RS485
• Via service interface
Plain text display With information on cause and remedial measures
Light emitting diodes (LED)
Status information Status indicated by various light emitting diodes
The following information is displayed depending on the device version:
• Supply voltage active
• Data transmission active
• Device alarm/error has occurred

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Ex connection data These values only apply for the following device version:
Order code for "Output", option M "Modbus RS485", for use in intrinsically safe areas
Safety Barrier Promass 100
Safety-related values
Terminal numbers
Supply voltage Signal transmission
2 (L-) 1 (L+) 26 (A) 27 (B)
Unom = DC 24 V
Umax = AC 260 V
Unom = DC 5 V
Umax = AC 260 V
Intrinsically safe values
Terminal numbers
Supply voltage Signal transmission
20 (L-) 10 (L+) 62 (A) 72 (B)
Uo = 16.24 V
Io = 623 mA
Po = 2.45 W
With IIC 1): Lo = 92.8 µH, Co = 0.433 μF, Lo/Ro = 14.6 μH/Ω
For an overview and for information on the interdependencies between the gas group - sensor - nominal
diameter, see the "Safety Instructions" (XA) document for the measuring device
1) The gas group depends on the sensor and nominal diameter.
Transmitter
Intrinsically safe values
Order code for
"Approval"
Terminal numbers
Supply voltage Signal transmission
20 (L-) 10 (L+) 62 (A) 72 (B)
• Option BM: ATEX II2G + IECEx Z1 Ex ia, II2D Ex tb
• Option BU: ATEX II2G + IECEx Z1 Ex ia
• Option C2: CSA C/US IS Cl. I, II, III Div. 1
• Option MM: INMETRO Ex ia Zone 1
• Option NG: NEPSI Ex ia Zone 1
• Option 85: ATEX II2G + IECEx Z1 Ex ia + CSA C/US
IS Cl. I, II, III Div. 1
Ui = 16.24 V
Ii = 623 mA
Pi = 2.45 W
Li = 0 µH
Ci = 6 nF
For an overview and for information on the interdependencies between the gas group - sensor - nominal
diameter, see the "Safety Instructions" (XA) document for the measuring device
Low flow cut off The switch points for low flow cut off are user-selectable.
Galvanic isolation The following connections are galvanically isolated from each other:
• Outputs
• Power supply
Protocol-specific data Modbus RS485
Protocol Modbus Applications Protocol Specification V1.1
Device type Slave
Slave address range 1 to 247
Broadcast address range 0

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Function codes • 03: Read holding register
• 04: Read input register
• 06: Write single registers
• 08: Diagnostics
• 16: Write multiple registers
• 23: Read/write multiple registers
Broadcast messages Supported by the following function codes:
• 06: Write single registers
• 16: Write multiple registers
• 23: Read/write multiple registers
Supported baud rate • 1 200 BAUD
• 2 400 BAUD
• 4 800 BAUD
• 9 600 BAUD
• 19 200 BAUD
• 38 400 BAUD
• 57 600 BAUD
• 115 200 BAUD
Data transfer mode • ASCII
• RTU
Data access Each device parameter can be accessed via Modbus RS485.
For Modbus register information, see "Description of device parameters"
documentation →  32
Power supply
Terminal assignment Overview: housing version and connection versions
A
1
1.1 1.2
A0030218
A Housing version: compact, aluminum coated
1 Connection version: Modbus RS485
1.1 Signal transmission
1.2 Supply voltage
Transmitter

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Modbus RS485 connection version
For use in the intrinsically safe area. Connection via Safety Barrier Promass 100.
Order code for "Output", option M
Order code for
"Housing"
Connection methods available Possible options for order code
"Electrical connection"
Output Power
supply
Options
A
terminals terminals • Option B: thread M20x1
• Option C: thread G ½"
• Option D: thread NPT ½"
Order code for "Housing":
Option A: compact, coated aluminum
L
L
62
72 A
B
10
20
+
_1
2
A0030219
 2 Modbus RS485 terminal assignment, connection version for use in intrinsically safe areas (connection via
Safety Barrier Promass 100)
1 Intrinsically safe power supply
2 Modbus RS485
Order code for
"Output" 20 (L-) 10 (L+) 72 (B) 62 (A)
Option MIntrinsically safe supply voltage Modbus RS485 intrinsically safe
Order code for "Output":
Option M: Modbus RS485, for use in intrinsically safe areas (connection via Safety Barrier Promass 100)

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Safety Barrier Promass 100
A
Safe area
1
L+
2
L
27
26
B A
Power
supply
24VDC
Modbus
RS485
1020 72 62
L+L B A
Power
supply
Modbus
RS485
Hazardous area
Safety Barrier
Promass 100
Power
Communication
Lift panel for
bus termination
1
2
A
A0030220
 3 Safety Barrier Promass 100 with terminals
1 Non-hazardous area and Zone 2/Div. 2
2 Intrinsically safe area
Supply voltage The power unit must be tested to ensure it meets safety requirements (e.g. PELV, SELV).
Transmitter
For device version with communication type:
Modbus RS485, device version:
For use in the intrinsically safe area: power supply via Safety Barrier Promass 100
Safety Barrier Promass 100
DC 20 to 30 V
Power consumption Transmitter
Order code for "Output" Maximum
Power consumption
Option M: Modbus RS485, for use in intrinsically safe areas 2.45 W
Safety Barrier Promass 100
Order code for "Output" Maximum
Power consumption
Option M: Modbus RS485, for use in intrinsically safe areas 4.8 W
Current consumption Transmitter
Order code for "Output" Maximum
Current consumption
Maximum
switch-on current
Option M: Modbus RS485, for use in intrinsically safe
areas 145 mA 16 A (< 0.4 ms)

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Safety Barrier Promass 100
Order code for "Output" Maximum
Current consumption
Maximum
switch-on current
Option M: Modbus RS485, for use in intrinsically safe
areas 230 mA 10 A (< 0.8 ms)
Power supply failure • Totalizers stop at the last value measured.
• Configuration is retained in the device memory.
• Error messages (incl. total operated hours) are stored.
Electrical connection Connecting the transmitter
1 2
A
A0030221
A Housing version: compact, aluminum coated
1 Cable entry for signal transmission
2 Cable entry for supply voltage
Terminal assignment→  8
Connection examples
Modbus RS485
Modbus RS485 intrinsically safe
21
A
B
3
A
BL+
L-
L- L+
A
B
5 6 7
4
8
A
B
L+
L-
A0028766
 4 Connection example for Modbus RS485 intrinsically safe
1 Control system (e.g. PLC)
2 Cable shield, observe cable specifications
3 Safety Barrier Promass 100
4 Observe cable specifications
5 Non-hazardous area
6 Non-hazardous area and Zone 2/Div. 2
7 Intrinsically safe area
8 Transmitter

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Potential equalization Requirements
No special measures for potential equalization are required.
For devices intended for use in hazardous locations, please observe the guidelines in the Ex
documentation (XA).
Terminals Transmitter
Spring terminals for wire cross-sections0.5 to 2.5 mm2 (20 to 14 AWG)
Safety Barrier Promass 100
Plug-in screw terminals for wire cross-sections0.5 to 2.5 mm2 (20 to 14 AWG)
Cable entries • Cable gland: M20 × 1.5 with cable 6 to 12 mm (0.24 to 0.47 in)
• Thread for cable entry:
– NPT ½"
– G ½"
– M20
Cable specification Permitted temperature range
• –40 °C (–40 °F) to +80 °C (+176 °F)
• Minimum requirement: cable temperature range ≥ ambient temperature +20 K
Power supply cable
Standard installation cable is sufficient.
Signal cable
Modbus RS485
The EIA/TIA-485 standard specifies two types of cable (A and B) for the bus line which can be used
for every transmission rate. Cable type A is recommended.
Cable type A
Characteristic impedance 135 to 165 Ω at a measuring frequency of 3 to 20 MHz
Cable capacitance <30 pF/m
Wire cross-section >0.34 mm2 (22 AWG)
Cable type Twisted pairs
Loop resistance ≤110 Ω/km
Signal damping Max. 9 dB over the entire length of the cable cross-section
Shield Copper braided shielding or braided shielding with foil shield. When grounding
the cable shield, observe the grounding concept of the plant.
Connecting cable between Safety Barrier Promass 100 and measuring device
Cable type Shielded twisted-pair cable with 2x2 wires. When grounding the cable shield,
observe the grounding concept of the plant.
Maximum cable resistance 2.5 Ω, one side
Comply with the maximum cable resistance specifications to ensure the operational reliability
of the measuring device.

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The maximum cable length for individual wire cross-sections is specified in the table below. Observe
the maximum capacitance and inductance per unit length of the cable and connection values for
hazardous areas .
Wire cross-section Maximum cable length
[mm2] [AWG] [m] [ft]
0.5 20 70 230
0.75 18 100 328
1.0 17 100 328
1.5 16 200 656
2.5 14 300 984
Performance characteristics
reference operating
conditions
• Error limits based on ISO 11631
• Water with +15 to +45 °C (+59 to +113 °F) at2 to 6 bar (29 to 87 psi)
• Specifications as per calibration protocol
• Accuracy based on accredited calibration rigs that are traced to ISO 17025.
To obtain measured errors, use the Applicator sizing tool →  31
Maximum measured error Base accuracy
Design fundamentals →  15
Mass flow
±0.2 % o.r.
Volume flow
±0.3 % o.r.
Density
±20 kg/m³ (±0.02 SGU)
Temperature
±0.5 °C ± 0.005 · T °C (±0.9 °F ± 0.003 · (T – 32) °F)
Zero point stability
DN Zero point stability
[mm] [in] [kg/h] [lb/min]
8 ³⁄₈ 0.20 0.007
15 ½ 0.65 0.024
25 1 1.80 0.066
40 1½ 4.50 0.165
50 2 7.0 0.257
Flow values
Flow values as turndown parameter depending on nominal diameter.

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SI units
DN 1:1 1:10 1:20 1:50 1:100 1:500
[mm] [kg/h] [kg/h] [kg/h] [kg/h] [kg/h] [kg/h]
8 2 000 200 100 40 20 4
15 6 500 650 325 130 65 13
25 18 000 1 800 900 360 180 36
40 45 000 4 500 2 250 900 450 90
50 70 000 7 000 3 500 1 400 700 140
US units
DN 1:1 1:10 1:20 1:50 1:100 1:500
[inch] [lb/min] [lb/min] [lb/min] [lb/min] [lb/min] [lb/min]
³⁄₈ 73.50 7.350 3.675 1.470 0.735 0.147
½ 238.9 23.89 11.95 4.778 2.389 0.478
1 661.5 66.15 33.08 13.23 6.615 1.323
1½ 1 654 165.4 82.70 33.08 16.54 3.308
2 2 573 257.3 128.7 51.46 25.73 5.146
Accuracy of outputs
The output accuracy must be factored into the measured error if analog outputs are used, but
can be ignored for fieldbus outputs (e.g. Modbus RS485, EtherNet/IP).
The outputs have the following base accuracy specifications.
Repeatability o.r. = of reading; 1 g/cm3 = 1 kg/l; T = medium temperature
Base repeatability
Mass flow
±0.10 % % o.r.
Volume flow
±0.15 % % o.r.
Design fundamentals →  15
Density
±10 kg/m³ (±0.01 SGU)
Temperature
±0.25 °C ± 0.0025 · T °C (±0.45 °F ± 0.0015 · (T–32) °F)
Response time • The response time depends on the configuration (damping).
• Response time in the event of erratic changes in the measured variable (mass flow only): After
100 ms → 95 % of full scale value
Influence of medium
temperature
Mass flow
When there is a difference between the temperature for zero point adjustment and the process
temperature, the typical measured error of the sensor is ±0.0003 % of the full scale value/°C
(±0.00015 % of the full scale value/°F).
Influence of medium
pressure
The table below shows the effect on accuracy of mass flow due to a difference between calibration
pressure and process pressure.
o.r. = of reading

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DN [% o.r./bar] [% o.r./psi]
[mm] [in]
8 ³⁄₈ no influence
15 ½ no influence
25 1 no influence
40 1½ no influence
50 2 –0.009 –0.0006
Design fundamentals o.r. = of reading, o.f.s. = of full scale value
BaseAccu = base accuracy in % o.r., BaseRepeat = base repeatability in % o.r.
MeasValue = measured value; ZeroPoint = zero point stability
Calculation of the maximum measured error as a function of the flow rate
Flow rate Maximum measured error in % o.r.
ZeroPoint
BaseAccu ⋅100
³
A0021332
± BaseAccu
A0021339
ZeroPoint
BaseAccu ⋅100
<
A0021333
ZeroPoint
MeasValue ⋅100
±
A0021334
Calculation of the maximum repeatability as a function of the flow rate
Flow rate Maximum repeatability in % o.r.
½⋅ZeroPoint
BaseRepeat ⋅100
³
A0021335
A0021340
½⋅ZeroPoint
BaseRepeat ⋅100
<
A0021336
ZeroPoint
MeasValue ⋅100
½⋅±
A0021337
Example for max. measured error
E [%]
0 10 20 30 40 50 60
0
0.5
1.0
1.5
2.0
2.5
70 80 90 100 Q [%]
A0030073
E Error: maximum measured error in % o.r.
Q Flow rate as %
Installation
No special measures such as supports etc. are necessary. External forces are absorbed by the
construction of the device.

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Mounting location
A0028772
To prevent measuring errors arising from accumulation of gas bubbles in the measuring tube, avoid
the following mounting locations in the pipe:
• Highest point of a pipeline.
• Directly upstream of a free pipe outlet in a down pipe.
Orientation The direction of the arrow on the sensor nameplate helps you to install the sensor according to the
flow direction (direction of medium flow through the piping).
Orientation Recommendation
AVertical orientation
A0015591
BHorizontal orientation, transmitter
head up
A0015589
1)
Exceptions:
→  5,  17
CHorizontal orientation, transmitter
head down
A0015590
2)
Exceptions:
→  5,  17
DHorizontal orientation, transmitter
head at side
A0015592
1) Applications with low process temperatures may decrease the ambient temperature. To maintain the
minimum ambient temperature for the transmitter, this orientation is recommended.
2) Applications with high process temperatures may increase the ambient temperature. To maintain the
maximum ambient temperature for the transmitter, this orientation is recommended.
If a sensor is installed horizontally with a curved measuring tube, match the position of the sensor to
the fluid properties.

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1 2
A0028774
 5 Orientation of sensor with curved measuring tube
1 Avoid this orientation for fluids with entrained solids: Risk of solids accumulating.
2 Avoid this orientation for outgassing fluids: Risk of gas accumulating.
Inlet and outlet runs No special precautions need to be taken for fittings which create turbulence, such as valves, elbows
or T-pieces, as long as no cavitation occurs .
Special mounting
instructions
Zero point adjustment
All measuring devices are calibrated in accordance with state-of-the-art technology. Calibration
takes place under reference conditions →  13. Therefore, a zero point adjustment in the field is
generally not required.
Experience shows that zero point adjustment is advisable only in special cases:
• To achieve maximum measuring accuracy even with low flow rates
• Under extreme process or operating conditions (e.g. very high process temperatures or very high-
viscosity fluids).
Mounting Safety Barrier
Promass 100
> 22.5
(> 0.89)
> 22.5
(> 0.89)
A0016894
 6 Minimum distance between additional Safety Barrier Promass 100 or other modules.Engineering unit mm
(in)
Environment
Ambient temperature range Measuring device –40 to +60 °C (–40 to +140 °F)
Safety Barrier Promass 100 –40 to +60 °C (–40 to +140 °F)
‣If operating outdoors:
Avoid direct sunlight, particularly in warm climatic regions.

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Temperature tables
In the following tables, the following interdependencies between the maximum medium
temperature Tm for T6 to T1 and the maximum ambient temperature Ta apply when operating the
device in hazardous areas.
Ex ia, CCSAUS IS
SI units
Order code for "Housing" Ta
[°C]
T6
[85 °C]
T5
[100 °C]
T4
[135 °C]
T3
[200 °C]
T2
[300 °C]
T1
[450 °C]
Option A "Compact coated alu"
35 50 85 120 150 150 150
50 – 85 120 150 150 150
60 – – 120 150 150 150
US units
Order code for "Housing" Ta
[°F]
T6
[185 °F]
T5
[212 °F]
T4
[275 °F]
T3
[392 °F]
T2
[572 °F]
T1
[842 °F]
Option A "Compact coated alu"
95 122 185 248 302 302 302
122 – 185 248 302 302 302
140 – – 248 302 302 302
Explosion hazards arising from gas and dust
Determining the temperature class and surface temperature with the temperature table
• In the case of gas: Determine the temperature class as a function of the ambient temperature Ta
and the medium temperature Tm.
• In the case of dust: Determine the maximum surface temperature as a function of the maximum
ambient temperature Ta and the maximum medium temperature Tm.
Example
• Measured maximum ambient temperature: Tma = 47 °C
• Measured maximum medium temperature: Tmm = 108 °C
Ta
[°C]
T1
[450°C]
35 140
50 140
60 140
35 140
45 140
50 140
50 85 120 140 140
– 85 120 140 140
– – 120 140 140
50 85 120 140 140
– 85 120 140 140
– – 120 140 140
T6
[85°C]
T5
[100°C]
T4
[135°C]
T3
[200°C]
T2
[300°C]
A0031223
 7 Procedure for determining the maximum surface temperature
1. Select device (optional).
2. In the column for the maximum ambient temperature Ta select the temperature that is
immediately greater than or equal to the measured maximum ambient temperature Tma that is
present.
 Ta = 50 °C.
The row showing the maximum medium temperature is determined.
3. Select the maximum medium temperature Tm of this row, which is larger or equal to the
measured maximum medium temperature Tmm.
 The column with the temperature class for gas is determined: 108 °C ≤ 120°C → T4.

LPGmass
Endress+Hauser 19
4. The maximum temperature of the temperature class determined corresponds to the maximum
surface temperature for dust: T4 = 135 °C
Storage temperature –40 to +60 °C (–40 to +140 °F)
Climate class DIN EN 60068-2-38 (test Z/AD)
Degree of protection Transmitter and sensor
• As standard: IP66/67, type 4X enclosure
• When housing is open: IP20, type 1 enclosure
• Display module: IP20, type 1 enclosure
Safety Barrier Promass 100
IP20
Vibration resistance • Vibration, sinusoidal according to IEC 60068-2-6
– 2 to 8.4 Hz, 3.5 mm peak
– 8.4 to 2 000 Hz, 1 g peak
• Vibration broad-band random, according to IEC 60068-2-64
– 10 to 200 Hz, 0.003 g2/Hz
– 200 to 2 000 Hz, 0.001 g2/Hz
– Total: 1.54 g rms
Shock resistance Shock, half-sine according to IEC 60068-2-27
6 ms 30 g
Shock resistance Rough handling shocks according to IEC 60068-2-31
Electromagnetic
compatibility (EMC)
• Depends on the communication protocol:
– HART, PROFIBUS DP, Modbus RS485, EtherNet/IP:
As per IEC/EN 61326 and NAMUR Recommendation 21 (NE 21)
– PROFINET: as per IEC/EN 61326
• Complies with emission limits for industry as per EN 55011 (Class A)
For details, refer to the Declaration of Conformity.
Process
Medium temperature range Sensor
–50 to +125 °C (–58 to +257 °F)
Seals
No internal seals
Density 0 to 5 000 kg/m3 (0 to 312 lb/cf)
Pressure-temperature
ratings
The following pressure/temperature diagrams apply to all pressure-bearing parts of the device and
not just the process connection.

LPGmass
20 Endress+Hauser
Flange according to EN 1092-1 (DIN 2501)
300 [°F]2001000-50
[°C]150100500-50
0
10
20
30
40
[bar][psi]
200
400
600
0
PN40
A0029387-EN
 8 With flange material 1.4404 (F316/F316L)
Flange according to ASME B16.5
300 [°F]2001000-50
[°C]150100500-50
0
10
20
30
40
[bar][psi]
200
400
600
0
50
Class300
Class150
A0029515-EN
 9 With flange material 1.4404 (F316/F316L)
Internal thread BSPP (G) according to ISO 228-1
60
70
80
90
100
110
120
800
1000
1200
1400
1600
1800
[°C]
[bar][psi]
150
100
50
0
-50
300200100
0
-50 [° ]F
A0029501-EN
 10 Process connection material: 1.4404 (316/316L)
Flow limit Select the nominal diameter by optimizing between the required flow range and permissible pressure
loss.
For an overview of the full scale values for the measuring range, see the "Measuring range"
section →  6