Baker Hughes Masoneilan 12400 Series User manual

12400 Series
Level Transmitter / Controller
UKCA Instruction Manual
& Safety Guide (Rev.A)
Advanced Level Measurement:
• SIL2-capable Liquid Level Transmitter
• Low and high level switch integrated functions
• Easy installation and simple operation
• Three built-in pushbuttons
• Seamless system integration
Baker Hughes Data Classication : Public

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THESE INSTRUCTIONS PROVIDE THE CUSTOMER/OPERATOR WITH IMPORTANT PROJECT-
SPECIFIC REFERENCE INFORMATION IN ADDITION TO THE CUSTOMER/OPERATOR’S
NORMAL OPERATION AND MAINTENANCE PROCEDURES. SINCE OPERATION AND
MAINTENANCE PHILOSOPHIES VARY, BAKER HUGHES COMPANY (AND ITS SUBSIDIARIES
AND AFFILIATES) DOES NOT ATTEMPT TO DICTATE SPECIFIC PROCEDURES, BUT TO
PROVIDE BASIC LIMITATIONS AND REQUIREMENTS CREATED BY THE TYPE OF EQUIPMENT
PROVIDED.
THESE INSTRUCTIONS ASSUME THAT OPERATORS ALREADY HAVE A GENERAL
UNDERSTANDING OF THE REQUIREMENTS FOR SAFE OPERATION OF MECHANICAL AND
ELECTRICAL EQUIPMENT IN POTENTIALLY HAZARDOUS ENVIRONMENTS. THEREFORE,
THESE INSTRUCTIONS SHOULD BE INTERPRETED AND APPLIED IN CONJUNCTION WITH
THE SAFETY RULES AND REGULATIONS APPLICABLE AT THE SITE AND THE PARTICULAR
REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE.
THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN
EQUIPMENT NOR TO PROVIDE FOR EVERY POSSIBLE CONTINGENCY TO BE MET IN
CONNECTION WITH INSTALLATION, OPERATION OR MAINTENANCE. SHOULD FURTHER
INFORMATION BE DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT
COVERED SUFFICIENTLY FOR THE CUSTOMER/OPERATOR’S PURPOSES THE MATTER
SHOULD BE REFERRED TO BAKER HUGHES.
THE RIGHTS, OBLIGATIONS AND LIABILITIES OF BAKER HUGHES AND THE CUSTOMER/
OPERATOR ARE STRICTLY LIMITED TO THOSE EXPRESSLY PROVIDED IN THE CONTRACT
RELATING TO THE SUPPLY OF THE EQUIPMENT. NO ADDITIONAL REPRESENTATIONS OR
WARRANTIES BY BAKER HUGHES REGARDING THE EQUIPMENT OR ITS USE ARE GIVEN
OR IMPLIED BY THE ISSUE OF THESE INSTRUCTIONS.
THESE INSTRUCTIONS ARE FURNISHED TO THE CUSTOMER/OPERATOR SOLELY TO
ASSIST IN THE INSTALLATION, TESTING, OPERATION, AND/OR MAINTENANCE OF THE
EQUIPMENT DESCRIBED. THIS DOCUMENT SHALL NOT BE REPRODUCED IN WHOLE OR IN
PART WITHOUT THE WRITTEN APPROVAL OF BAKER HUGHES.

Masoneilan 12400 DLT UKCA Instruction Manual | II
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INDEX
Warning ........................................................................................................................................... 1
1. Level Transmitter/Controller Type 12400 Operation ............................................................... 2
2. Type 12400 Numbering System................................................................................................. 2
3. Technical Specications............................................................................................................ 3
3.1 Performances........................................................................................................................ 3
3.2 Schematics and Parts Identication...................................................................................... 3
4. Intrinsic Safety Marking for Type 12400 ................................................................................... 4
5. Flameproof Marking for Type 12400 ......................................................................................... 4
6. Electrical Connections and Conduit Entry............................................................................... 4
6.1 Voltage Supply Allowable...................................................................................................... 4
6.2 Maximum Power ................................................................................................................... 4
6.3 Output Current and Loop Resistor ........................................................................................ 4
6.4 Intrinsic Safety Entity Parameters......................................................................................... 5
6.5 Conduit Entry in Flameproof Application............................................................................... 5
7. Assembly and Installation ......................................................................................................... 5
7.1 Assembly............................................................................................................................... 5
7.2 12400 Flameproof Installation............................................................................................... 5
7.3 12400 Intrinsic Safety and Type N Installation ...................................................................... 5
8. Setup and Start Up ..................................................................................................................... 6
8.1 Coupling................................................................................................................................ 6
8.2 Conguration......................................................................................................................... 6
8.3 Calibration............................................................................................................................. 6
8.4 Start up.................................................................................................................................. 6
9. Maintenance and Service........................................................................................................... 6
9.1 General Rules ....................................................................................................................... 6
9.2 Before Maintenance Activity.................................................................................................. 6
9.3 During Maintenance Activity.................................................................................................. 6
9.4 After Maintenance Activity..................................................................................................... 6
10. Special Conditions of Use ....................................................................................................... 6
10.1 For Intrinsic Safety and Flameproof.................................................................................... 6
10.2 For Intrinsic Safety .............................................................................................................. 7
10.3 For Flameproof.................................................................................................................... 7
Annex I............................................................................................................................................. 9
Annex II.......................................................................................................................................... 11
Menus of Transmitter models (12420 and 12430) .................................................................... 11
Menus of Controller model (12410)........................................................................................... 12

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WARNING
BEFORE installing, using or carrying out any maintenance tasks associated with this instrument, READ THE
INSTRUCTIONS CAREFULLY.
The 12400 Series complies with UK statutory requirements SI 2016 No. 1107 amended by SI 2019 No.696. It is certified to be
used in Gas or Dust explosive atmospheres, groups IIA, IIB, IIC and IIIC:
• Category II 1GD – zones 0, 1, 2, 20, 21 and 22 for the protection mode “ia”
• Category II 2GD – zones 1, 2, 21 and 22 for the protection mode “db” and “tb”
Products certified as explosion proof equipment MUST BE:
a. Installed, put into service, used and maintained in compliance with UK statutory requirements SI 2016 No 1107 and in
accordance with the recommendations contained in the relevant standards concerning potentially explosive atmospheres.
b. Used only in situations those comply with the certification conditions shown in this document and after verification
of their compatibility with the zone of intended use and the permitted maximum ambient temperature.
c. Installed, put into service and maintained by qualified and competent professionals who have undergone suitable
training for instrumentation used in areas with potentially explosive atmosphere. Such trainings are not supported
by Baker Hughes.
It is the end user’s responsibility to:
• Verify material compatibility with the application
• Ensure proper use of fall protection when working at heights, per Safe Site Work Practices
• Ensure use of proper Personal Protective Equipment
• Take the appropriate actions to ensure that site personnel who are performing installation, commissioning and
maintenance have been trained in proper site procedures for working with and around equipment, per Safe Site Work
Practices
Baker Hughes reserves the right to discontinue manufacture of any product or change product materials, design, or
specifications without notice.
Under certain operating conditions, the use of damaged instruments could cause a degradation of the performances of the
system which may lead to personal injury or death.
Use only genuine replacement parts, which are provided by the manufacturer to guarantee that the products comply with UK
statutory requirements SI 2016 No 1107.

Masoneilan 12400 DLT UKCA Instruction Manual | 2
Copyright 2021 Baker Hughes Company. All rights reserved.
1. Level Transmitter/Controller Type 12400 Operation
To be operational, the digital level and controller type 12400 must be mounted on a torque tube and on a displacer chamber
equipped with the displacer.
Any change in the level of liquid or the interface between two liquids will change the apparent weight of the displacer and cause a
change of the angle of rotation in the torque tube.
This angle is measured by a sensor and converted by an electronic module:
• Either to a standardized 4-20mA current, proportional with the change in level, when congured as a level transmitter,
• Or, to a 4-20mA current, generated by a PID algorithm derived from the error between the actual level of liquid and the local set point,
when congured as a level controller.
2. Type 12400 Numbering System
12 4 a b c d
Model Action Mounting Protection Housing
Material
4 - HART
communication
protocol, LCD
display and
push buttons,
SIL certied
1– Controller with
adjustable switches
and second 4-20 mA
analogue output signal:
AO_1, AO_2,
DO_1, DO_2
2– Transmitter:
AO_1
3– Transmitter with
adjustable switches
and second 4-20 mA
analogue output signal:
AO_1, AO_2,
DO_1, DO_2
0– Top and bottom,
Screwed, BW or SW
1– Top and bottom,
Flanged
2– Side and side, Flanged
3– Top vessel, Flanged
4– Side vessel, Flanged
5– Top and side,
Screwed,
BW or SW
6– Side and bottom,
Screwed, BW or SW
7– Side and bottom,
Flanged
8– Top and side, Flanged
9– Side and side,
Screwed, BW or SW
1– FM & FMc
SI, NI, DIP, XP
and Nema 4X-6P
2– JIS, Xproof
3– CU TR,
IS, Xproof
and IP 66/67
4– INMETRO,
IS, Xproof
5– ATEX & IECEx
IS, Xproof,
and IP 66/67
6– Other approvals
(based on
ATEX / IECEx)
7– Other approvals
(not based on
ATEX / IECEx)
1– Aluminum
with epoxy
painting
2– Stainless
steel
Note: only the Transmitter function is SIL certified.

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3. Technical Specifications
3.1 Performances
Refer to specic gravities between 0.15 and 1.4 with a standard displacer 907 cm3@ 1362 g.
• Accuracy: ±0.5 %
• Hysteresis: ±0.3 %
• Repeatability: ±0.2 %
• Dead zone: ±0.1 %
• Ambient temperature ranges:
– In operation: -50°C to +80°C
– Storage and transport: -50°C to +93°C
• Water ingress protection: IP66/67
3.2 Schematics & Parts Identification
Digital
Compartment
Mechanism
Compartment
Torque
Tube

Masoneilan 12400 DLT UKCA Instruction Manual | 4
Copyright 2021 Baker Hughes Company. All rights reserved.
4. Intrinsic Safety Marking
for Type 12400
The marking is on the serial plate stamped on the 12400
housing (rep 124).
• Name and address of the manufacturer:
Dresser Produits Industriels S.A.S.
14110 CONDE SUR NOIREAU - FRANCE
• Type designation: 12400
See numbering system for complete codication §2.
• Basic marking:
II 1 G/D
• Complementary marking:
– Ex ia IIC T6 Ga Ta -40°C, +55°C
Ex ia IIIC T85°C Da Ta -40°C, +55°C
– Ex ia IIC T5 Ga Ta -40°C, +70°C
Ex ia IIIC T100°C Da Ta -40°C, +70°C
– Ex ia IIC T4 Ga Ta -40°C, +80°C
Ex ia IIIC T135°C Da Ta -40°C, +80°C
• Serial number
• Year of manufacturing
• UK Approved Body : Eurons E&E CML (2503)
• UK Type examination certicate: CML 21UKEX2673X
• WARNING:
"POTENTIAL DANGER OF ELECTROSTATIC
CHARGES. SEE INSTRUCTIONS"
5. Flameproof Marking
for Type 12400
The marking is on the serial plate stamped on the 12400
housing (rep 124).
• Name and address of the manufacturer:
Dresser Produits Industriels S.A.S.
14110 CONDE SUR NOIREAU - FRANCE
• Type designation: 12400
See numbering system for complete codication §2.
• Basic marking:
II 2 G/D
• Complementary marking:
Ex db IIC T6 Gb -50°C < Tamb < +75°C
Ex tb IIIC T85°C Db IP66/IP67 -50°C < Tamb < +75°C
Ex db IIC T5 Gb -50°C < Tamb < +80°C
Ex tb IIIC T100°C Db IP66/IP67 -50°C < Tamb < +80°C
Ex db IIC T4 Gb -50°C < Tamb < +80°C
Ex tb IIIC T135°C Db IP66/IP67 -50°C < Tamb < +80°C
• Serial number
• Year of manufacturing
• UK Approved Body: Eurons E&E CML (2503)
• UK Type examination certicate: CML 21UKEX1672X
• WARNING:
"DO NOT OPEN IF AN EXPLOSIVE ATMOSPHERE
MAY BE PRESENT"
"POTENTIAL DANGER OF ELECTROSTATIC CHARGES.
SEE INSTRUCTIONS"
• Cable temperature: must be mentioned if the ambient
temperature is greater than 70°C:
Ambient Temperature Cable Temperature
75oC 80oC
80oC 85oC
6. Electrical Connections
and Conduit Entry
The type 12400 must be installed and put into service in
conformance with EN/IEC 60079-14 and / or national and local
regulations applicable for explosive atmospheres.
6.1 Voltage Supply Allowable
Connect the wires to the instrument’s terminals, taking care of
complying with polarities + and - and maximum voltage allowed
mentioned in the table below. Make the earth connections with
the internal and external ground terminals.
Voltage
Supply U (V)
AO_1 AO_2 DO_1/DO_2
MINI MAXI MINI MAXI MINI MAXI
Flameproof 10V 40V 10V 30V 0.5V 30V
Intrinsic
Safety 10V 30V 10V 30V 0.5V 30V
6.2 Maximum Power
3 W inside the 12400 housing.
6.3 Output Current and Loop Resistor
• AO_1 et AO_2:
3.8mA to 20.5mA for measurement
< 3.6mA or > 21mA in case of fault
• Maximum loop resistor
For AO_1 et AO_2 : R maxi (Ω) = U (V) – 10 (V)
I max (A)
R cha rge
U
• DO_1 et DO_2
Open collector output. Maximum current is 1A. A load
resistor must be inserted in the loop to limit the current
to this maximum.

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6.4 Intrinsic Safety Entity Parameters
AO_1: terminal identification: Primary OUT 4-20 mA
Max. Input Voltage Ui 30 V
Max. Input Current Ii 125 mA
Max. Input Power Pi 900 mW
Max. Internal Capacitance Ci 2.0 nF
Max. Internal Inductivity Li 500 µH
AO_2: terminal identification: Secondary OUT 4-20 mA
Max. Input Voltage Ui 30 V
Max. Input Current Ii 125 mA
Max. Input Power Pi 900 mW
Max. Internal Capacitance Ci 9.0 nF
Max. Internal Inductivity Li 500 µH
DO_1, DO_2: terminal identification: SW #1 and SW #2
Max. Input Voltage Ui 30 V
Max. Input Current Ii 125 mA
Max. Input Power Pi 900 mW
Max. Internal Capacitance Ci 4,5 nF
Max. Internal Inductivity Li 10 µH
6.5 Conduit Entry in Flameproof
Application
The connections can be done with different variations taking
into account approved manufacturer and requested approvals:
• A cable entry of a certied type Ex d IIC / Ex tb IIIC can be
mounted directly on the single ½" NPT (ANSI/ASME B1.20.1)
housing conduit connection.
• Adaptor or reducer if apparatus certied UK
Ex (type Copper CAPRI CODEC)
• For multiple cable entries (3 maximum), the adaptor Y237
"Masoneilan" can be used.
– If one Y237 input is not used, the conduit will be
closed by a plug if apparatus certified UK Ex (type
Copper CAPRI CODEC)
– If two Y237 inputs are not used, the Y237 must
be suppressed.
• The cable entry with or without its adaptor/reducer and the
Y237 with its cable entry must be installed in conformance
with ANNEX I.
7. Assembly and Installation
7.1 Assembly
The 12400 must be first mounted onto a torque tube, a
mechanism chamber et depending the type with a displacer
chamber.
• Refer to the 12400 Instruction and Operation Manual
IOM GEA19367 manual for further details.
• Take into account all special conditions of used listed in §10
7.2 12400 Flameproof Installation
The 12400 may be installed in gas and dust explosive
atmospheres of groups IIA, IIB, IIC and IIIC, category II 2GD
for zones 1, 2, 21 and 22 with “db” and “tb” protection mode.
V OLTA GE S UP PL Y
F RO M CONTRO L SY ST EM
Hazardous Zones 1, 2, 21, 22 Non -Hazardous Zone
7.3 12400 Intrinsic Safety
and Type n Installation
The 12400 may be installed in gas and dust explosive
atmospheres of groups IIA, IIB, IIC and IIIC, category II 1GD
for zones 0, 1, 2, 20, 21 and 22 with “ia” protection mode.
V OLTA GE S UP PL Y
F RO M CONTRO L SY ST EM
Hazardous Zones 0, 1, 2, 20, 21, 22 Non -Hazardous Zone
B arrière de
s écur ité
Note:
• It is under the user responsibility to check the installation
against Intrinsic safety rules taking into account
entity parameters of all devices in the loop in addition
of temporary one like PC or HART communicator,
measurement devices, etc.
• The HART communicator must be approved for Intrinsic
Safety application. Read its instruction manual and apply
the device serial plate marking.

Masoneilan 12400 DLT UKCA Instruction Manual | 6
Copyright 2021 Baker Hughes Company. All rights reserved.
8. Set Up and Start Up
• These operations must be done in conformance with
EN/IEC 60079-17 and / or national and local regulations
applicable for explosive atmospheres.
• Before carrying out any work on the device, check the local
conditions are free of potentially explosive atmosphere for
safe opening of the covers.
• The Push Buttons (rep 260) can be used for SETUP
operations in zones 0, 1 and 2.
• For using HART communication tools, please be under the
requirements dened in §10.
• During SETUP operations, the 12400 is no longer in
NORMAL operation. The analog outputs signals coming from
AO_1, AO_2, DO_1 and DO_2 could be not in accordance
with the process monitoring.
The following coupling, configuration or calibration operations
are only necessary when they have not already been carried
out by the manufacturer or by the end user. In all cases, check
that the operations comply with the instrument’s intended use.
• Refer to ANNEX II for the pushbutton menu owchart.
• Please refer to the 12400 Instruction and Operation Manual
IOM GEA19367 to complete the following actions.
8.1 Coupling
The coupling operation must be carried out before configuration
and calibration. It consists of correctly positioning the sensor
onto the torque tube.
8.2 Configuration
This operation must be carried out before the calibration done
and defined the working of the 12400. The main parameters are:
• Transmitter type:...................................level or interface
• Mounting: ..............................................left or right
• Current action for AO_1 and AO_2:.....direct or reverse
8.3 Calibration
This operation requests to simulate or to change the level of
liquid or the interface between two liquids. The basic operations
can be resuming by:
• Recording of specic gravities of calibration and service.
• ZERO (Low level) and the SPAN (High level) calibration.
8.4 Start up
Before to power up the digital level transmitter and controller
type 12400, check that:
• The 12400 is in NORMAL mode.
• The covers are fully screwed (rep 104, 107, 255 and 280)
and the security cover screws are well locked (rep 106, 110
and 257).
9. Maintenance and Service
9.1 General Rules
These operations must be put into service in conformance
with EN/IEC 60079-17 and / or national and local regulations
applicable for explosive atmospheres.
9.2 Before Maintenance Activity
Before carrying out any work on the device, check the local
conditions are free of potentially explosive atmosphere for safe
opening of the covers.
9.3 During Maintenance Activity
• Take into account all special conditions of use listed §10.
• Pay particular attention to the following points:
– Check that no part of the type 12400 is damaged. In
the event of damage, replace the defective parts with
genuine manufacturer's replacement parts only.
– Check that the pressure limiting plug at the back of
the mechanism compartment (rep 190) and its spongy
gasket (rep 192) are presents without any damage.
– Check the main cover seal (rep 109), the terminal
compartment seal (rep 105) and the mechanism
compartment seal (rep 108) are free of any damage.
– Check the 12400 housing and the magnet assembly
(rep 50) inside the mechanism compartment are free of
any damage.
– Check the gland and the electrical connections.
– To proceed to a cleaning of the different sides of the
enclosure to avoid the deposits of dusts for instruments
working in zones 20, 21 and 22.
9.4 After Maintenance Activity
After doing any work on the device, check the covers are fully
screwed (rep 104, 107, 255 and 280) and the security cover
screws are well locked (rep 106, 110 and 257).
10. Special Conditions of Use
10.1 For Intrinsic Safety and
Flameproof
• It is under the user responsibility to check once a year the
gasket and in the event of damage to replace the defective
parts with manufacturer's replacement parts only.
• The user will have to check the temperature increase on the
12400 head coming from the mechanical part in contact with
the 12400 housing or through the process thermal radiation
be less or equal than the temperature classication allowed.
This must be done in conformance with EN/IEC 60079-14
and / or national and local regulations applicable for explosive
atmospheres.

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• For use in dusty hazardous areas (zones 20, 21 & 22),
the user will have to clean regularly the di󰀨erent sides of
the enclosure to avoid the deposits of dusts; the maximum
thickness must be <5 mm. This cleaning will be done with
respect to the next requirement.
It is recommended for safe operation, the local
conditions around the device are free of potentially
explosive atmosphere.
• To avoid the risk of ignition from electrostatic discharge it shall
be necessary to follow the guidance of IEC/TS 60079-32-1 for
example to clean the device with a wet rag.
It is recommended for safe operation, the local
conditions around the device are free of potentially
explosive atmosphere.
• The nal user during the 12400 installation on site must
indicate the protection mode used on the serial plate by
removing the tear-o󰀨 tabs or putting a cross in the dedicated
area as per EN/IEC 60079-0 requirements.
10.2 For Intrinsic Safety
• The cable entry must have a protection level at least equal to
IP6X according to EN/IEC 60529 standards.
• For the 12400 housing with aluminium material, the user will
have to determine the use of the device for group II category
1 (zone 0) against potential inammable source causing by
sparks in the event of impact or friction.
• The voltage supply connected on each 12400 connectors
must be certied for use in group IIC and the loop intrinsic
safety approved. The entity parameters of the voltage supply
must be compatible with the entity parameters of the 12400
described §6.4.
10.3 For Flameproof
• For ambient temperature greater than 70°C, the user must
choose a cable entry and a cable compatible with:
Ambient Temperature Cable and Cable
Entry Temperature
75oC 80oC
80oC 85oC
• The cable entry and the cable must be compatible with the
minimum temperature of -50°C indicated on the marking
plate.
• The cable entry must have a protection level at least equal to
IP66/67.
• The width of the ameproof joints is superior to the values
specied in the tables of the standard EN/IEC 60079-1.
The ameproof joints are not intended to be repaired.
• The joints of:
Joints Rep
Three buttons axis 260
Three covers thread 104,107, 280
O-rings 105, 108, 109
are greased with the following greases:
Grease Type Manufacturer
GRAPHENE 702 ORAPI
MOLYKOTE 111 COMPOUND MOLYKOTE®
MULTILUB MOLYKOTE®
GRIPCOTT NF MOLYDAL

Masoneilan 12400 DLT UKCA Instruction Manual | 8
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ANNEX I
CABLE GLAND – ADAPTOR - REDUCER MOUNTING RULES
CABLE GLAND ADAPTOR - REDUCER
Housing
certified II 2 GD
Ex db IIC / Ex tb IIIC
Cable gland
certified II 2 GD
Ex db IIC / Ex tb IIIC
Housing
certified II 2 GD
Ex db IIC / Ex tb IIIC
Adaptor-Reducer
certified II 2 GD
Ex db IIC / Ex tb IIIC
TYPE:
Male Taper (conical) threaded joint: ¾" NPT
• Conform to NPT requirements of ANSI/ASME
B1.20.1
• A minimum of 5 threads provided on each part
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent
product with similar efficiency.
• Cemented with Loctite 5400 (low strength thread
sealant) or equivalent product with similar efficiency.
This is mandatory to meet an IP67.
• Tightening torque
(see Cable Gland instruction manual)
• Check threads engagement
(see Cable Gland instruction manual)
Rep A:
TYPE: Male Taper (conical) threaded joint: ¾"NPT
• Conform to NPT requirements of ANSI/ASME B1.20.1
• A minimum of 5 threads provided on each part
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent product with similar
efficiency.
• Cemented with Loctite 2700 (high-strength threadlocker) or equivalent
product with similar efficiency. This is mandatory to meet an IP67.
• Tightening torque (see Adaptor-Reducer instruction manual)
• Check threads engagement (see Adaptor-Reducer instruction manual)
Rep B:
TYPE: Female Taper (conical) thread joints: ½” NPT or other NPT size
• Conform to NPT requirements of ANSI/ASME B.1.20.1
• A minimum of 5 threads provided on each part
TYPE:
Female Cylindrical threaded joints: M20 x 1.5 or other sizes
• Conform to ISO 965-1 and ISO 965-3 requirements
• Minimum thread engaged: 5
• Depth of engagement: ≥ 8 mm
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent product with similar
efficiency.
• Cemented with Loctite 5400 (low strength thread sealant) or equiva-
lent product with similar efficiency. This is mandatory to meet an IP67.
• Tightening torque (see Cable Gland instruction manual)
• Check threads engagement (see Cable Gland instruction manual)

Masoneilan 12400 DLT UKCA Instruction Manual | 10
Copyright 2021 Baker Hughes Company. All rights reserved.
ANNEX I Cont.
Y237 ADAPTOR – MOUNTING RULES
CABLE GLAND PLUG
Housing
certified II 2 GD
Ex db IIC / Ex tb IIIC
Cable gland
certified II 2 GD
Ex db IIC / Ex tb IIIC
Housing
certified II 2 GD
Ex db IIC / Ex tb IIIC
Plug
certified II 2 GD
Ex db IIC / Ex tb IIIC
Rep A:
TYPE: Male Taper (conical) threaded joint: ¾" NPT
• Conform to NPT requirements of ANSI/ASME B1.20.1
• A minimum of 5 threads provided on each part
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent
product with similar efficiency.
• Cemented with Loctite 2700 (high-strength threadlocker)
or equivalent product with similar efficiency. This is
mandatory to meet an IP67.
• Tightening torque (see Cable Gland instruction manual)
• Check threads engagement (see Cable Gland
instruction manual)
Rep B:
TYPE: Female Taper (conical) thread joints: ½" NPT or
¾" NPT
• Conform to NPT requirements of ANSI/ASME B.1.20.1
• A minimum of 5 threads provided on each part
TYPE: Female Cylindrical threaded joints: M20 x 1.5
• Conform to ISO 965-1 and ISO 965-3 requirements
• Minimum thread engaged: 5
• Depth of engagement: ≥ 8 mm
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent
product with similar efficiency.
• Cemented with Loctite 5400 (low strength thread
sealant) or equivalent product with similar efficiency.
This is mandatory to meet an IP67.
• Tightening torque (see Cable Gland instruction manual)
• Check threads engagement (see Cable Gland
instruction manual)
Rep A:
TYPE: Male Taper (conical) threaded joint: ¾" NPT
• Conform to NPT requirements of ANSI/ASME B1.20.1
• A minimum of 5 threads provided on each part
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent product with
similar efficiency.
• Cemented with Loctite 2700 (high-strength threadlocker) or
equivalent product with similar efficiency. This is mandatory to
meet an IP67.
• Tightening torque (see Cable Gland instruction manual)
• Check threads engagement (see Cable Gland instruction manual)
Rep B:
TYPE: Female Taper (conical) thread joints: ½" NPT or ¾" NPT
• Conform to NPT requirements of ANSI/ASME B.1.20.1
• A minimum of 5 threads provided on each part
TYPE: Female Cylindrical threaded joints: M20 x 1.5
• Conform to ISO 965-1 and ISO 965-3 requirements
• Minimum thread engaged: 5
• Depth of engagement: ≥ 8 mm
MOUNTING RULE:
• Thread cleaning with Loctite 7063 or equivalent product with
similar efficiency.
• Cemented with Loctite 2700 (high-strength threadlocker) or
equivalent product with similar efficiency. This is mandatory to
meet an IP67.
• Tightening torque (see Cable Gland instruction manual)
• Check threads engagement (see Cable Gland instruction manual)
• One plug only allowed or remove the Y237 (two plugs not allowed)

11 | Baker Hughes Copyright 2021 Baker Hughes Company. All rights reserved.
ANNEX II
Menus of Transmitter Models
(12420 and 12430)
## .###
SIGNAL : mA
## .##
LEVEL : %
NORMAL
SETUP
VIEW ERR
CLEAR ERR
BAS SETUP
ADV SETUP
NORMAL
VIEW ERR
NORMAL MENU
(NORMAL MODE)
SETUP MENU
(SETUP MODE)
VIEW DATA
To VIEW DATA Menu
+ -
+ -
+ -
+ -
ALTERNATING
DISPLAY
113
DLT 12400
NORMAL MODE
AUTOMATIC
POWER ON
*+-
*
*
+ -+
*
+ -
+ -
+ -
+ -
+ -
*
To BAS SETUP Menu
To ADV SETUP Menu
*
*
VIEW DATA
+-
To VIEW ERR Menu
*
*
*
RESET
Lock
Lock
Lock
To FAILSAFE Menu
If any critical
default remains
CLEAR ERR

Masoneilan 12400 DLT UKCA Instruction Manual | 12
Copyright 2021 Baker Hughes Company. All rights reserved.
ANNEX II Cont.
Menus of Controller Model
(12410)
##.###
C TR L : mA
##.##
L EV EL : %
NORMAL
CTRL SP
VIEW ERR
CLR ERR
B AS S ETUP
ADV S ETUP
NORMA L
VIEW ERR
C LR E RR
NORMA L ME NU
(NORMA L MO DE )
S ET UP MEN U
(S ET UP MOD E )
VIEW DATA
To VIEW DAT A Menu
+ -
+ -
+ -
+ -
A LT ERNA TI NG
DISPL AY
113
DLT 12400
NORMA L MO DE
AUTOM ATIC
P OWER O N
*+-
*
*
+ -+
*
+ -
+ -
+ -
+ -
+ -
*
To BAS SE TU P Menu
To ADV SETU P Menu
*
*
VIEW DATA
+-
To VIEW ERR Menu
T o FAIL SA FE Menu
If any critical
default remains
*
*
*
R ES ET
L ock
L ock
L ock
##.##
C TR L SP
A LT ERNA TI NG
DISPL AY
SETUP
+ -
L ock
*
##.###
C TR L SP

Copyright 2021 Baker Hughes Company. All rights reserved. Baker Hughes provides
this information on an “as is” basis for general information purposes. Baker Hughes does
not make any representation as to the accuracy or completeness of the information and
makes no warranties of any kind, specic, implied or oral, to the fullest extent permissible
by law, including those of merchantability and tness for a particular purpose or use.
Baker Hughes hereby disclaims any and all liability for any direct, indirect, consequential
or special damages, claims for lost prots, or third party claims arising from the use of
the information, whether a claim is asserted in contract, tort, or otherwise. Baker Hughes
reserves the right to make changes in specications and features shown herein, or
discontinue the product described at any time without notice or obligation. Contact your
Baker Hughes representative for the most current information. The Baker Hughes logo
and Masoneilan are trademarks of Baker Hughes Company. Other company names and
product names used in this document are the registered trademarks or trademarks of
their respective owners.
BHMN-12400-UKCA-IOM-34608A-X-0721 07/2021 bakerhughes.com
Tech Field Support & Warranty:
Phone: [phone]
[e-mail]
Find the nearest local Channel Partner in your area:
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