Endress+Hauser Proline Promass 84 Training manual

SD00128D/06/EN/13.11
71144260
Valid as of version
HART: V 3.01.XX (device software)
Modbus: V 3.06.XX (device software)
Commissioning Instructions for PTB gas approval
DE-08-MI002-PTB007
Proline Promass 84
Coriolis gas meter for applications subject to legal metrological
control

Commissioning Instructions for PTB gas approval Proline Promass 84 Table of contents
Endress+Hauser 3
Table of contents
1 General information . . . . . . . . . . . . . . . 4
1.1 How to use this document . . . . . . . . . . . . . . . . . . . . 4
1.2 Components of the measuring system . . . . . . . . . . . 4
2 Identification . . . . . . . . . . . . . . . . . . . . 5
2.1 Device designation and versions . . . . . . . . . . . . . . 6
2.2 Nameplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Electrical connection of measuring unit . . . . . . . . . 13
3.3 Electrical connection of remote version . . . . . . . . . 14
4 Operation and commissioning . . . . . . 15
4.1 Operating options . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Hardware configurations . . . . . . . . . . . . . . . . . . . . 15
4.3 Quick setups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Operation subject to legal metrological
control ("Custody transfer"). . . . . . . . 16
5.1 Placing on market of measuring devices subject to legal
metrological control, inspection 
of operational devices . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Requirements for commissioning at point 
of installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Requirements for usage . . . . . . . . . . . . . . . . . . . . . 17
5.4 Security measures . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.5 Zero point adjustment . . . . . . . . . . . . . . . . . . . . . . 18
5.6 Configuring the measuring device for operation 
subject to legal metrological control . . . . . . . . . . . 19
5.7 Sealing of the measuring device . . . . . . . . . . . . . . . 20
5.8 Unlocking the measuring device . . . . . . . . . . . . . . 21
6 Technical data . . . . . . . . . . . . . . . . . . 22
6.1 Overview of technical data relevant to 
custody transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Functions relevant to custody transfer 28
7.1 Custody transfer . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.2 Meas. variables System units Configuration . 28
7.3 Meas. variables System units 
Add. configuration . . . . . . . . . . . . . . . . . . . . . . 29
7.4 Meas. variables Special units Arbitrary unit . . 29
7.5 Quick setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.6 Display Control Basic config. . . . . . . . . . . . . 30
7.7 Display Control Unlocking/locking . . . . . . . 30
7.8 User interface Main line Configuration . . . . . 30
7.9 User interface Main line Multiplex . . . . . . . . 30
7.10 User interface Additional line Configuration . 30
7.11 User interface Additional line Multiplex . . . . 31
7.12 User interface Information line Configuration 31
7.13 User interface Information line Multiplex . . . 31
7.14 Totalizer Totalizer 1 to 3 Configuration . . . . 31
7.15 Totalizer Handling totalizer . . . . . . . . . . . . . . . . 32
7.16 Outputs Current output Configuration . . . . . 32
7.17 Outputs Current output Operation . . . . . . . . 32
7.18 Outputs Pulse/freq. output Configuration . . . 33
7.19 Outputs Pulse/freq. output Operation . . . . . . 35
7.20 Outputs Relay output Configuration . . . . . . . 36
7.21 Outputs Relay output Operation . . . . . . . . . . 36
7.22 Inputs Status input Configuration . . . . . . . . . 36
7.23 Inputs Status input Operation . . . . . . . . . . . . 36
7.24 Basic function Process parameter 
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.25 Basic function Process para. EPD parameter . 37
7.26 Basic function Process para. Ref. parameter . . 37
7.27 Basic function Process parameter Adjustment 38
7.28 Basic function Process para. Pressure correct. 38
7.29 Basic function System parameter 
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.30 Basic function Sensor data Configuration . . . 38
7.31 Basic function Sensor data Flow coeff. . . . . . 39
7.32 Basic function Sensor data Density coeff. . . . 39
7.33 Supervision System Configuration . . . . . . . . . 39
7.34 Supervision System Operation . . . . . . . . . . . 40
7.35 Monitoring Version-info Device . . . . . . . . . . 40
7.36 Supervision Version-info Sensor . . . . . . . . . . 40
7.37 Supervision Version-info Amplifier . . . . . . . . 40
7.38 Supervision Version-info I/O module . . . . . . 41
7.39 Service & Analysis Application Test points . . . 41
7.40 Service & Analysis Application Monitoring . . 41
7.41 Service & Analysis Application 
Gas measurement . . . . . . . . . . . . . . . . . . . . . . . 42

General information Commissioning Instructions for PTB gas approval Proline Promass 84
4Endress+Hauser
1 General information
1.1 How to use this document
1.1.1 Intended use
This document is designed to help you with the preparations needed to place the Promass 84
Coriolis gas meter on the market and to put it into use.
1.1.2 Target audience
This document is aimed solely at those who are authorized to place this gas meter on the market
and to carry out a re-verification. The gas meter has been approved in accordance with the
Measuring Instruments Directive.
1.1.3 Additional documentation
This document supplements the following documentation:
• for the Proline Promass 84 HART measuring device:
– BA00109D Operating Instructions
– BA00110D Description of Device Functions
• for the Proline Promass 84 Modbus RS485 measuring device:
– BA00129D Operating Instructions
– BA00130D Description of Device Functions
1.2 Components of the measuring system
1.2.1 System design
The electronics basically consist of a bus printed circuit board, which connects the power unit to
the amplifier and the communication module. The sensor/exciting circuits, HistoROM/S-DAT,
HistoROM/T-DAT as well as the user interface/operating module are plugged into the amplifier.
Keys Display
 Modbus RS485
Exciter coil 
Amplifier Communication
module
Frequency output
Sensor coil Pulse output
Temperature sensor Current output
Power supply Relay output
Connector
service
tool

Commissioning Instructions for PTB gas approval Proline Promass 84 Identification
Endress+Hauser 5
2 Identification
The following options are available for identification of the measuring device::
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All information about the measuring device is displayed.
For an overview of the scope of the Technical Documentation provided, refer to the following:
• The chapters "Additional documentation" ä4
•DerW@M Device Viewer: Enter the serial number from the nameplate
(www.endress.com/deviceviewer)
Reorder
The measuring device is reordered using the order code.
Extended order code:
• The device type (product root) and basic specifications (mandatory features) are always listed.
• Of the optional specifications (optional features), only the safety and approval-related
specifications are listed (e.g. LA). If other optional specifications are also ordered, these are
indicated collectively using the # placeholder symbol (e.g. #LA#).
• If the ordered optional specifications do not include any safety and approval-related specifications,
they are indicated by the + placeholder symbol (e.g. 8E2B50-ABCDE+).

Identification Commissioning Instructions for PTB gas approval Proline Promass 84
6Endress+Hauser
2.1 Device designation and versions
The "Promass 84" Coriolis gas meter consists of the following parts:
• Transmitter: Promass 84
• Sensor: Promass A, Promass F, Promass X and Promass O
The "Promass 84" gas meter has been approved in accordance with the Measuring Instruments
Directive 2004/22/EC, including Appendix I Essential Requirements and Appendix MI-002 Gas
Meters and Volume Conversion Devices, and also has an EC type-examination certificate
DE-08-MI002-PTB007.
Two versions are available:
•Compactversion:
Transmitter and sensor form a single mechanical unit.
• Remote version:
Transmitter and sensor are installed separately.
In addition, versions for use in hazardous areas are also available.
Compact version*
Aluminum field housing
Remote version
Aluminum field housing
Remote version
Wall-mount housing
Promass A
DN 2 to 4
(1/12" to 1/8")
Promass F
DN 8 to 250
(3/8" to 3")
Promass O
DN 80 to 150
(3" to 6")
Promass X
DN 350
(14")
* In the compact version, a stainless steel field housing is also available.
Esc E
- +
Esc E
- +
Esc E
- +
Esc E
- +
Esc E
- +

Commissioning Instructions for PTB gas approval Proline Promass 84 Identification
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2.2 Nameplates
The nameplates are attached to the transmitter and sensor and describe the most important
technical information pertaining to the measuring device in question. The following sections
describe the structure of the various nameplates using examples:
2.2.1 Transmitter nameplates
A0015989
Fig. 1: Example of a transmitter nameplate
1 Certificate recipient
2 Name of the transmitter
3 Order code, meaning of individual letters and digits ä11
4 Serial number (Ser. no.)
5 Extended order code (Ext. ord. cd.)
6 Year of manufacture
7 Power supply, frequency and power consumption
8 Additional function and software
9 Available inputs / outputs
10 Reserved for information on special products
11 Please refer to operating instructions / documentation
12 Reserved for certificates, approvals and for additional information on device version
13 Patents
14 Degree of protection
15 Ambient temperature range
Order Code:
Ser.No.:
Ext. ord. cd.:
i
2
7
8
9
10
345
12 13
15
14
11
1
6

Identification Commissioning Instructions for PTB gas approval Proline Promass 84
8Endress+Hauser
2.2.2 Additional nameplate for gas meters subject to legal
metrological control
A0011001-en
Fig. 2: Example of an additional nameplate
1 Name of the sensor
2 Electromagnetic / mechanical ambient class
3 Accuracy class
4 Permitted range of gas flow
5 Permitted pressure range
6 Permitted gas temperature range
7 Permitted operating temperature range
8 Information on medium
9 Information on pulse value
10 Conformity identification with CE-M mark
10.1 Number of years
10.2 Nominated authority
10.3 Number of EC type-examination certificate
M1259 DE–08–MI002–PTB007
1
Qmin =
pe, min = Qmax =
pe, max =
2
3
4
5
6
7
8
9
10
10.1 10.2 10.3
Environmental Class
Pulse Value
GasType
GasTemperature
Accuracy Class
Ambient Temperature

Commissioning Instructions for PTB gas approval Proline Promass 84 Identification
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2.2.3 Sensor nameplate (remote version)
A0011002
Fig. 3: Example of a sensor nameplate
1 Certificate recipient
2 Name of the transmitter
3 Order code, meaning of individual letters and digits ä11
4 Serial number (Ser. no.)
5 Extended order code (Ext. ord. cd.)
6 Year of manufacture
7 Ambient temperature range
8 Degree of protection
9 Calibration factor with zero point (K-factor)
10 Max. fluid temperature (Tm)
11 Accuracy of density measurement (Density cal.)
12 Material of measuring tubes (Materials)
13 Reserved for additional information on device version e.g. approvals, certificates
14 Patents
15 Flow direction
16 Please refer to operating instructions / documentation
i
1
Order Code:
Ser.No.:
Ext. ord. cd.:
K-factor:
Tm:
Density cal:
Materials:
2
4653 78
9
1110 12 13 14 15
16

Identification Commissioning Instructions for PTB gas approval Proline Promass 84
10 Endress+Hauser
2.2.4 Nameplate for connections
A0015931
Fig. 4: Example of a connection nameplate
1 Serial number (Ser.No.)
2 Possible inputs and outputs
3 Signals present at inputs and outputs
4 Possible configuration of current output
5 Possible configuration of relay contacts
6 Terminal assignment, cable for power supply
7 Terminal assignment and configuration (see point 4 and 5) of inputs and outputs
8 Version of device software currently installed (Device SW)
9 Installed communication type (Communication)
10 Information on current communication software (Drivers: Device Revision and Device Description),
11 Date of installation (Date)
12 Current updates to data specified in points 8 to 11 (Update1, Update 2)
4
7
2
3
8 1210 11
1
9
6
26(+) / 27(-)
NC:
Versorgung /
Tension d'alimentation
Observer manuel d'instruction
See operating manual
Betriebsanleitung beachten
Communication:
Drivers:
Device SW:
Ser.No.:
Supply /
24(+) / 25(-)
22(+) / 23(-)
20(+) / 21(-)
N/L-
PE
A:
NO:
P:
L1/L+
12
319475-00XX
active
passive
normally open contact
normally closed contact
Date:
Update 1
ex works/ ab Werk / réglagesusine Update 2
5

Commissioning Instructions for PTB gas approval Proline Promass 84 Identification
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2.2.5 Structure of order code/serial number
The order code/serial number (type code) describes the exact structure and equipment level of the
measuring system. It can be found on the nameplate of the transmitter and sensor and is structured
as follows:
P R O M A S S 84***–************+#**#
Pos no.:
1 Instrument family
2 Electronics
3 Sensor A, F, O or X
4 to 5 Nominal diameter
6Hyphen
7 Measuring tube material
8 to 10 Process connection/seal
11 Certification
12 Calibration
13 Approval
14 Type (compact/remote)/degree of
protection
15 Cable entry type
16 Power supply/display
17 Custody transfer approval
18 Outputs/inputs
Approval for applications subject to legal metrological control (pos. no. 17)
L MID Type Examination Certificate Gas MI-002 (Europe)

Wiring Commissioning Instructions for PTB gas approval Proline Promass 84
12 Endress+Hauser
3 Wiring
#Warning!
When connecting Ex-certified devices, see the notes and diagrams in the Ex-specific supplement to
these operating instructions. Please do not hesitate to contact your Endress+Hauser sales office if
you have any questions.
3.1 Terminal assignment
The values for the individual inputs and outputs can be found in the Technical Data ä22
Order characteristic
for "inputs/outputs"
Terminal no. (inputs/outputs)
20 (+) / 21 (-) 22 (+) / 23 (-) 24 (+) / 25 (-) 26 (+) / 27 (-)
Fixed communication boards (permanent assignment)
S––
Frequency output
Ex i, passive
Current output
HART, Ex i, active
T––
Frequency output
Ex i, passive
Current output
HART, Ex i, passive
Flexible communication boards
D Status input Relay output Frequency output Current output
HART
M Status input Frequency output 2 Frequency output 1 Current output
HART
N Current output Frequency output Status input Modbus
RS485
1 Relay output Frequency output 2 Frequency output 1 Modbus
RS485
Q – – Status input Modbus
RS485
2 Relay output Current output 2 Frequency output Current output 1
HART
7 Relay output 1 Relay output 2 Status input Modbus
RS485

Commissioning Instructions for PTB gas approval Proline Promass 84 Wiring
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3.2 Electrical connection of measuring unit
a0006816
Fig. 5: Connecting the transmitter, conductor cross-section max. 2.5 mm²
A View A (aluminum field housing)
B View B (stainless steel field housing)
C View C (wall-mount housing)
a Cable for power supply: 85 to 260 V AC, 20 to 55 V AC, 16 to 62 V DC
– Terminal no. 1: L1 for AC, L+ for DC
– Terminal no. 2: N for AC, L- for DC
b Signal cable: Terminal assignment ä12
c Fieldbus cable: Terminal assignment ä12
d Ground terminal for protective ground
e Ground terminal for signal/fieldbus cable shield
f Service connector for connection to FXA193 service interface with Proline adapter cable (Fieldcheck, FieldCare)
HART
b
d
e
a
–27
–25
–23
–21
+ 26
+ 24
+ 22
+ 20
N (L-) 2
L1 (L+) 1
f
Modbus RS485
25
23
21
2
1
24
22
20
L1 (L+)
N (L-)
–
–
–
+
+
+
27
26
A (RxD/TxD-N)
B (RxD/TxD-P) c
d
e
a
b
f
AB
C
b/c
a/a
–/c
a/a b/b
–/b
b/c
a/a
–/b
HART
Modbus RS485

Wiring Commissioning Instructions for PTB gas approval Proline Promass 84
14 Endress+Hauser
3.3 Electrical connection of remote version
a0003681
Fig. 6: Connecting the remote version
a Wall-mount housing: Non-hazardous area and ATEX II3G / Zone 2
b Wall-mount housing: ATEX II2G / Zone 1 /FM/CSA
c Remote version, flange version
Terminal no.:
4/5 = gray
6/7 = green
8 = yellow
9/10 = pink
11/12 = white
41/42 = brown
3.3.1 Cable specification, connecting cable
In the remote version, the specifications of the cable connecting the transmitter to the sensor are as
follows:
• 6 × 0.38 mm² PVC cable with common shield and individually shielded cores
• Conductor resistance: 50 /km
• Capacitance core/shield: 420 pF/m
• Cable length: max. 20 m
• Operating temperature: max. +105 °C
!Note!
The cable must be installed securely, to prevent movement.
45 6 7 8 9 10 11 12 4142
45 6 7 8 9 10 11 12 4142
S1 S1 S2 S2 GND TMTMTT TT
++ ++
++ ++
S1 S1 S2 S2 GND TMTMTT TT
ab
c
dd
d
e

Commissioning Instructions for PTB gas approval Proline Promass 84 Operation and commissioning
Endress+Hauser 15
4 Operation and commissioning
4.1 Operating options
Different options are available for the configuration, commissioning and operation of the measuring
device:
• Onsite operation (optional)
• Configuration programs (e.g. FieldCare)
• HART protocol or Modbus RS485 communication (depending on measuring device version)
Exact information on these topics can be found in the accompanying operating instructions
(BA00109D, Proline Promass 84 HART or BA00129D, Proline Promass 84 Modbus RS485).
4.2 Hardware configurations
Using hardware switches, different configurations can be set up depending on the measuring device
version:
• Hardware write protection on/off
• Device address
• Terminating resistors
• Configuration of current output active/passive
• Configuration of relay output NC contact/NO contact
• Configuration of pulse/frequency output Line monitoring
Exact information on this topic can be found in the accompanying operating instructions
(BA00109D, Proline Promass 84 HART or BA00129D, Proline Promass 84 Modbus RS485).
4.3 Quick setups
Using quick setups, the measuring device can be commissioned quickly, and different configurations
(depending on the measuring device version) can be set up:
• Commissioning
•Pulsatingflow
• Gas measurement
• Communication (only Proline Promass 84 Modbus RS485)
Exact information on this topic can be found in the accompanying operating instructions
(BA00109D, Proline Promass 84 HART or BA00129D, Proline Promass 84 Modbus RS485).

Operation subject to legal metrological control ("Custody transfer")Commissioning Instructions for PTB gas approval Proline Promass
16 Endress+Hauser
5 Operation subject to legal metrological control
("Custody transfer")
5.1 Placing on market of measuring devices subject to legal
metrological control, inspection of operational devices
All Promass 84 Coriolis gas meters are tested at Endress+Hauser Flowtec AG or on an approved
reference test rig (e.g. PIGSAR) using reference measurements.
The devices are placed on the market and put into use by either Endress+Hauser Flowtec AG in
accordance with Measuring Instruments Directive, Module D or by an notified body in accordance
with Module F.
The gas meter may then be used in applications subject to legal metrological control. The associated
seal on the measuring device ensures this status.
Regular inspections of operational devices must be carried out in accordance with national
regulations.
5.2 Requirements for commissioning at point of installation
5.2.1 Installation
As far as possible, the Promass 84 Coriolis gas meter must be mounted strainlessly. The metering
system must, in appropriate way, be equipped with a gate valve so that, if necessary, a zero flow can
be achieved for checking and adjusting the zero point. The valve needs not to be protected.
The types, serial numbers and software versions of all the meter modules used at the point of
installation must be compared with the specifications in the accompanying documentation.
Likewise, the electrical characteristics of additional devices which are connected to the outputs of
the Promass 84 gas meter, must be tested.
When securing the gas meter at the point of installation, the parameters relating to measurement
technology ä28 ff. must be checked using the parameter list which accompanies the device (see
also CD-ROM: Product Documentation).
The data on the sheet accompanying the device are verified for accuracy, a change in the zero point
and the configuration of device-specific functions. Changes in the parameters relating to
measurement technology at the point of installation must be documented in the acceptance report.
This also applies to a possible necessary zero point corrections (old zero point, new zero point), e.g.
if significant changes in the tensions on the installed meter can not be excluded. The acceptance
report for the device must be kept on file.
If the device is to be subject to legal metrological control, the connecting cables must be secured as
well.
5.2.2 Operating pressure ranges
The Promass 84 gas meter must be used in accordance with the pe,min and pe,max values indicated
on the additional nameplate å2. The values must be selected in such a way that the gases or
gas mixtures to be measured occur only in a gaseous state in the designated temperature range.

Commissioning Instructions for PTB gas approval Proline Promass 84 Operation subject to legal metrological control ("Custody
Endress+Hauser 17
5.3 Requirements for usage
The meter must be operated with an uninterruptible voltage supply (emergency current supply in
according to EN 60654-2), which can bridge a power failure and secure operation for at least 3 days
or until maintenance operations are is carried out.
An automatic maintenance request must be technically ensured by the operator of the meters.
The functioning of the uninterruptible voltage supply and the triggering of the automatic
maintenance request must be checked and recorded in writing by the operator of the device.
When the device is in use, it must be ensured that the operating pressure does not drop below the
minimum operating pressure.
Missing seals must be set on the meter by the operator of the facility (the party selling the energy),
to ensure that the purchasing party cannot make any intentional or accidental changes.
5.4 Security measures
The main verification mark and the protective marks are taken from å7 ä20.

Operation subject to legal metrological control ("Custody transfer")Commissioning Instructions for PTB gas approval Proline Promass
18 Endress+Hauser
5.5 Zero point adjustment
All Promass measuring devices are calibrated under reference operating conditions with state-of-
the-art technology. The zero point calculated in this way is printed on the nameplate å1.
However, it can also be shown at any time on the display using the key sequence BASIC
FUNCTION SENSOR DATA CONFIGURATION ZERO POINT (6803).
See also the manual entitled "Description of Device Functions" BA00110D Promass 84 HART or
BA00130D Promass 84 Modbus RS485.
In the case of the Promass 84, it is recommended that a zero point adjustment be carried out using
a (test) gas during calibration and testing of the measurement technology. The resulting value must
be documented in the report accompanying the device or in the acceptance report.
Performing the zero point adjustment
1. Operate the system until operating conditions have settled.
This usually takes approx. 5 minutes at maximum flow rates.
2. Stop the flow (v = 0 m/s).
3. Check the shutoff valves for leaks.
4. Check that the operating pressure is correct.
5. Using the local display, select the ZEROPOINT ADJUSTMENT function in the function matrix:
BASIC FUNCTIONS PROCESS PARAMETER ADJUSTMENT ZERO POINT
ADJUSTMENT
6. When you press Oor Syou are automatically prompted to enter the access code if the
function matrix is still disabled. Enter the code (factory setting = 84).
7. Use Oor Sto select START and confirm with F.
Select YES at the prompt and press Fagain to confirm.
Zero point adjustment now starts.
– The message "ZEROPOINT ADJUST RUNNING" appears on the display for 30 to 60 seconds
while adjustment is in progress.
– If the flow in the pipe exceeds 0.1 m/s, the following error message appears on the display:
"ZERO ADJUST NOT POSSIBLE".
– When the zero point adjustment completes, the "ZERO ADJUST." function reappears on the
display.
8. Back to the HOME position:
– Press and hold down the Esc keys (X) for longer than three seconds, or repeatedly press
and release these keys.

Commissioning Instructions for PTB gas approval Proline Promass 84 Operation subject to legal metrological control ("Custody
Endress+Hauser 19
5.6 Configuring the measuring device for operation subject
to legal metrological control
Precondition: The device is operational and not in custody transfer mode.
Configuration of those functions which are important for custody transfer measurement, such as
output configuration, custody transfer variable and measuring mode.
!Note!
A detailed description of the functions can be found in the manual entitled "Description of Device
Functions" BA00110D Promass 84 HART or BA00130D Promass 84 Modbus RS485.
• In the CUSTODY TRANSFER (Z) block:
In the functions Z001 to Z008, the outputs relevant to custody transfer measurement can be set
to custody transfer and the current custody transfer displayed.
• In the OUTPUTS (E) block:
The custody transfer variables can be assigned to the existing outputs.
• In the "INPUTS" (F) block:
A switching behavior is assigned to the input.

Operation subject to legal metrological control ("Custody transfer")Commissioning Instructions for PTB gas approval Proline Promass
20 Endress+Hauser
5.7 Sealing of the measuring device
a0001778
Fig. 7: Examples of how to seal the various device versions.
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