Baker Hughes Becker Series User manual

Becker™
Digital Natural Gas
Positioner (DNGP)
Series 3.5 M with Modbus®Protocol
Instruction Manual (Rev. C)
Baker Hughes Data Classification : Public

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About this Guide
This instruction manual applies to the following instruments and approved software: DNGP rmware
version 3.5.
The information in this manual is subject to change without prior notice.
The information contained in this manual, in whole or part, shall not be transcribed or copied without
Baker Hughes Company’s written permission.
In no case does this manual guarantee the merchantability of the positioner or the software or its adapt-
ability to a specic client needs.
Please report any errors or questions about the information in this manual to your local supplier or visit
www.valves.bakerhughes.com
Revisions Changes
Rev B - 03/2016 Revised to add GE Company.
Rev C - 10/2022 Revised to update and rebranded in Baker Hughes format.

Becker Digital Natural Gas Positioner Instruction Manual | 3© 2022 Baker Hughes Company. All rights reserved.
DISCLAIMER
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 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 TO ANY THIRD PARTY
WITHOUT THE WRITTEN APPROVAL OF BAKER HUGHES.
COPYRIGHT
Copyright 2022 by Baker Hughes Company. All rights reserved.
PN 720046629-779-0000 Rev. C

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Becker Digital Natural Gas Positioner Instruction Manual | 5© 2022 Baker Hughes Company. All rights reserved.
Table of Contents
1. Safety Information..................................................................................................................................9
Documentation Symbols ...................................................................................................................... 9
DNGP Product Safety .................................................................................................................. 10
2. Introduction ........................................................................................................................................ 13
Principle of Operation .................................................................................................................. 13
Scope of Manual .......................................................................................................................... 13
Technical Assistance ................................................................................................................... 13
3. Specications ..................................................................................................................................... 15
Technical Specications .............................................................................................................. 15
Certications and Approvals ........................................................................................................ 18
Software Release Information ..................................................................................................... 19
4. Installation ..........................................................................................................................................21
Mounting ...................................................................................................................................... 21
DNGP (Aluminum enclosure)................................................................................................. 21
DNGP-REM (Plastic enclosure) ............................................................................................ 21
Wire Size Recommendations ...................................................................................................... 22
Logic Board and Wiring Diagram ................................................................................................. 24
Jumpers and Fuses ..................................................................................................................... 25
Orice Adjustment ....................................................................................................................... 26
Electro-Pneumatic Positioner Pressure Control Override ............................................................ 33
5. DNGP with Position Transmitter ......................................................................................................... 43
Westlock CS and DS Rotary Position Transmitters ..................................................................... 43
Wiring diagram for Westlock CS and DNGP ......................................................................... 44
Jumper Settings for DNGP with Rotary Transmitter CS ........................................................ 44
Rotary Transmitter 4-20 mA Calibration Procedure for CS ................................................... 45
Wiring diagram for Westlock DS and DNGP ......................................................................... 46
Rotary Transmitter 4-20 mA Calibration Procedure for DS ................................................... 47
DNGP with Ballu󰀨 Linear Transmitter .......................................................................................... 51
BTL5 Position Sensor Conguring DNGP Positioner Action ................................................. 59
Calibrating the Linear Position Transmitter BTL5 ................................................................. 60
Calibrating the Linear Position Transmitter BTL7 ................................................................. 61
Installation of Calibration Tool on BTL7 .......................................................................... 62
Calibration BTL7 ............................................................................................................. 63
Fine Adjustment of End Points ....................................................................................... 65
How to Reset BLT7 ......................................................................................................... 66
Replacement Parts for BTL Position Transmitters .......................................................... 66
DNGP Accessories: ............................................................................................................... 67
Low Pressure 2/2 Solenoid Valve for Power Gas < 40 PSIG ......................................... 67
High Pressure 3/2 Solenoid Valve for Power Gas 60 - 160 PSIG .................................. 68
High Pressure 5/2 Solenoid Valve for Power Gas 60 - 160 PSIG .................................. 68

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6. Software Functionality ........................................................................................................................ 71
Run Time Screen ......................................................................................................................... 71
Current Loop Mode ............................................................................................................... 71
Digital Mode .......................................................................................................................... 72
Input Conguration Menu ............................................................................................................ 73
Input Select ........................................................................................................................... 73
Split Control .......................................................................................................................... 73
Valve Actions Menu ..................................................................................................................... 74
Bypass Mode ........................................................................................................................ 74
Pulse Mode ........................................................................................................................... 74
Logging and Alarms Menu.............................................................................................................75
Limit Alarms.............................................................................................................................75
Remote Indicator.....................................................................................................................76
Reset Solenoid Counter..........................................................................................................76
Firmware Menu..............................................................................................................................77
Version Info ............................................................................................................................ 77
7. Troubleshooting and Maintenance ..................................................................................................... 79
Troubleshooting the Firmware Cold Restart ................................................................................ 79
Alarm and Fault Handling ............................................................................................................ 79
DNGP Leak Test Procedure ........................................................................................................ 81
Replacing the Electronic Module of the Programmable Linear Transmitter ................................ 81
Valve Maintenance Instructions ................................................................................................... 82
Gas Line Filter ............................................................................................................................. 82
2/2 and 3/2 Solenoid Valve Maintenance and Troubleshooting Instructions ............................... 82
Cleaning ................................................................................................................................ 82
Preventative Maintenance .................................................................................................... 82
Causes of Improper Operation .............................................................................................. 83

Becker Digital Natural Gas Positioner Instruction Manual | 7© 2022 Baker Hughes Company. All rights reserved.
Table of Figures
Figure 1 DNGP-EXP Aluminum Enclosure and 5/3 Solenoid Valve .................................................... 23
Figure 2 DNGP-REM (Plastic Enclosure) ............................................................................................ 23
Figure 3 Terminal Board #1 (10 Pins) and Terminal Board #2 (14 Pins) ............................................. 24
Figure 4 DNGP Logic Board Layout .................................................................................................... 25
Figure 5 Variable Orice Assembly (Standard Assembly shown) ........................................................ 26
Figure 6 2” and 3” Valves Conguration .............................................................................................. 27
Figure 7 4” to 12” Valves Conguration ............................................................................................... 29
Figure 8 Valves Greater than 16” Conguration .................................................................................. 30
Figure 9 Single-Acting Control Valve, PSUPPLY ≥ 50 PSIG ............................................................... 31
Figure 10 Single-Acting Control Valve, PSUPPLY < 55 PSIG ............................................................... 32
Figure 11 Conventional Flow Control with Pressure Control Override (PCO) ...................................... 33
Figure 12 Flow Control with Electro-Pneumatic Positioner and PCOH High Pressure Override .......... 34
Figure 13 Double-Acting Control Valve with PCO, PSUPPLY ≥ 55 PSIG (High Pressure Override) .... 35
Figure 14 Double-Acting Control Valve with PCO, PSUPPLY > 55 PSIG (Low Pressure Override ....... 36
Figure 15 Single-Acting Control Valve with PCO, PSUPPLY≤60 PSIG ................................................ 37
Figure 16 Single-Acting Control Valve with PCO, PSUPPLY > 55 PSIG .............................................. 38
Figure 17 Rotary Piston Spring to Close Actuator w/High Pressure 3/2 Solenoid Valve,
PSUPPLY 65-160 PSIG ........................................................................................................ 39
Figure 18 Rotary Piston Spring to Open Actuator w/Pressure Control Override,
PSUPPLY 65-160 PSIG ........................................................................................................ 40
Figure 19 Rotary Piston Spring Return Actuator w/Snap Acting Selector Relay,
PSUPPLY 65-160 PSIG For Short Dynamic Systems such as Power Plants ....................... 41
Figure 20 Overall Dimensions of Rotary Transmitter ............................................................................ 43
Figure 21 Rotary Transmitter Wiring Diagram CS ................................................................................. 44
Figure 22 Components of Rotary Transmitter for Calibration Procedure .............................................. 45
Figure 23 Rotary Transmitter Wiring Diagram DS ................................................................................. 46
Figure 24 DNGP and Linear Transmitter Tail Rod Conguration for Legacy Actuators ......................... 51
Figure 25 Detailed View of Linear Position Transmitter Tail Rod Transducer for Legacy Actuators ...... 51
Figure 26 Detailed View of the Linear Position Transmitter Standard Assembly for Legacy Actuators...52
Figure 27 Linear Transmitter Overall Dimensions ................................................................................. 54
Figure 28 Linear Transmitter Adapter Flange and Magnet for Legacy Actuators .................................. 54
Figure 29 Reversible Linear Transmitter Connector ............................................................................. 55
Figure 30 Linear Transmitter Wiring Diagram for BTL3 ........................................................................ 56
Figure 31 Programmable Linear Transmitter Wiring Diagram for BTL5 and BTL7 ............................... 57
Figure 32 Linear Transmitter BTL5 and BTL7 ....................................................................................... 58
Figure 33 Linear Transmitter BTL5 DIP Switch Location ...................................................................... 60
Figure 34 Linear Transmitter Assembly with Programming Tool (BTL5) ............................................... 60

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Figure 35 BTL7 Wiring and External View ............................................................................................ 61
Figure 36 Linear Transmitter Assembly with Programming Tool (BTL7) ............................................... 62
Figure 37 Low Pressure 2/2 Solenoid Overall Dimensions ................................................................... 67
Figure 38 DNGP with 2/2 Solenoid Valves ............................................................................................ 67
Figure 39 High Pressure 3/2 Solenoid Valve (60 - 160 PSIG) .............................................................. 68
Figure 40 DNGP with 5/3 Solenoid Attached ........................................................................................ 69
Figure 41 High Pressure 5/3 Solenoid Overall Dimensions .................................................................. 69
Table of Tables
Table 1 DNGP Technical Specications ............................................................................................. 15
Table 2 Rotary Transmitter Technical Specications ......................................................................... 17
Table 3 Programmable Linear Position Transmitter Specications (Supplied 2006 and later) .......... 17
Table 4 DNGP Spare Parts List ......................................................................................................... 18
Table 5 Certications and Approvals ................................................................................................. 19
Table 6 Software Release Information ............................................................................................... 20
Table 7 Wire Size, Wire Resistance and Voltage Drop Information1.................................................. 23
Table 8 Orice Part Numbers ............................................................................................................ 28
Table 9 Tail Rod/Proportional Conguration Part Numbers for Legacy Actuators ............................. 52
Table 10 Riser Pipe Mount Conguration Part Numbers for Legacy Actuators ................................... 53
Table 11 Transmitter Parts for Legacy Actuators ................................................................................. 66
Table 12 Transmitter Parts for Refresh Actuators ................................................................................ 66
Table 13 DNGP Alarm and Fault Handling .......................................................................................... 79

Becker Digital Natural Gas Positioner Instruction Manual | 9© 2022 Baker Hughes Company. All rights reserved.
1. Safety Information
This section provides safety information and denes the documentation symbols.
Documentation Symbols
DNGP instructions contain warnings, cautions and notes, where necessary, to alert you to safety related or
other important information. Read the instructions carefully before installing and maintaining your instrument.
Total compliance with all DANGER, WARNING and CAUTION notices is required for safe operation.
DANGER
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
could result in serious injury.
Indicates a potentially hazardous situation, which if not avoided could
result in property damage or data loss.
Note: Indicates important facts and conditions.

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DNGP Product Safety
For DNGP positioners intended for use with natural gas: Ensure that an adequate pressure relief provision is
installed when the application of system supply pressure could cause peripheral equipment to malfunction.
Installation must be in accordance with all local and national codes.
General installation, maintenance, or replacement
• Products must be installed in compliance with all local and national codes and standards by qualied
personnel using safe site work practices. Personal Protective Equipment (PPE) must be used per safe
site work practices.
Explosion Hazard: Do not disconnect equipment unless power has been switched o or the area is known
to be non-hazardous.
Do not remove the instrument cover or connect an electrical circuit unless the power is disconnected
(except as specically noted herein).
Note: Ensure the area is properly ventilated.
Do not disconnect a pneumatic connection unless the power is disconnected. Natural gas will escape
into the surrounding atmosphere on disconnection of the pneumatic connections or removal of pressure
containing component.

Becker Digital Natural Gas Positioner Instruction Manual | 11© 2022 Baker Hughes Company. All rights reserved.
Do not use damaged instruments.
Make sure area is properly ventilated. Installation in poorly ventilated conned areas, with any potential of gases
other than oxygen being present, can lead to a risk of personnel asphyxiation.
Use only genuine replacement parts which are provided by the manufacturer, to guarantee that the products
comply with the essential safety requirements of the European Directives.
Note: Changes to specications, structure, and components used may not lead to the revision of this
manual unless such changes aect the function and performance of the product.

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Becker Digital Natural Gas Positioner Instruction Manual | 13© 2022 Baker Hughes Company. All rights reserved.
2. Introduction
The DNGP is designed specically for the needs of the natural gas industry. By using solenoids to control
the actuator pressures, the DNGP eliminates the continuous bleed gas produced by I/P transducers and
bleeds no gas until the valve is called upon to move. The DNGP can even do this while maintaining a
pressure di󰀨erence across the actuator. Additionally, the discharge can be directed downstream, and the
positioner can fail in last position on a loss of signal, DC power or power gas. Reliability and simplicity have
been engineered into the DNGP, while features that make the positioner versatile, easy to use, and fail
safe, have been retained.
Note: In order to reset fuses, F1 and F2 are resettable by cycling the boards on and o.
Principle of Operation
The solenoid operated electro-pneumatic positioner compares a 4-20 mA signal from a Remote
Transmitting Unit (RTU) to a 4-20 mA signal from a position transmitter. Depending upon the di󰀨erence
between the two signals, the positioner energizes the open or close solenoid to drive the control valve
toward the desired position. If the signals are within an adjustable dead band, neither solenoid is
energized. The solenoid tubing is connected to the valve actuator through a variable orice. This orice
allows the valve speed to be increased or decreased. The faster the valve speed, the larger the positioner
dead band must be to prevent overshoot of the valve position. When the input signal falls within operational
deadband of either full open or full closed, and bypass enable is selected, the positioner continually
energizes the appropriate solenoid to provide a full pressure di󰀨erential across the cylinder.
Scope of Manual
This manual provides information on the installation, adjustment, and maintenance of the DNGP-Digital
Natural Gas Positioner. For information concerning actuators, valves, and accessories, refer to the
instruction manuals provided with the specic product.
Technical Assistance
Only those qualied through training or experience should install, operate, or maintain Becker positioners.
If you have any questions concerning these instructions, contact your local Baker Hughes sales
representative, sales o󰀩ce, or manufacturer before proceeding. O󰀩ces are listed on the back cover.

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Becker Digital Natural Gas Positioner Instruction Manual | 15© 2022 Baker Hughes Company. All rights reserved.
3. Specications
Technical Specications
Table 1 - DNGP Technical Specications
Item Denition
Electrical Power
Requirements
VIN = 12 to 24 VDC nominal (11-30 VDC) 21 VDC min. for 24 VDC
solenoid, 11 VDC min. for 12 VDC solenoid 1 to 2 A including DNGP heater
and transmitter heater (3 A fuse line recommended).
Over Current Protection 20 Joule, 2000 A surge and lightning transient protection 3 A fuse for Logic
module 24 VDC power 50/150 mA PTC resettable fuses for position input
signal and transmitter feedback signal.
Position Input Signal
(Selectable) Standard
4-20 mA (Split Range: 4 mA min. up to 16 mA max. in 1 mA increments),
minimum 4 mA band.
Remote Indicator Dual
Function Output
The remote Indicator function can be selected to function as Solenoid
Counter or In Standby/Manual. In Counter mode it pulses whenever either
solenoid activates. In Standby/Manual mode, it is active whenever the
DNGP is in Standby or Manual modes.
Valve Position
Feedback Module
Primary: Linear Digital Transmitter Analog Rotary Types also available.
Display 80 (4 x 20) character Vacuum Fluorescent Display for: Command Signal,
Valve Position Feedback, Solenoid Cycle Count (stored in 10-year
nonvolatile memory), Dead Band value. Incorporates a user navigational
menu system.
Input Mode Selection Manual/Auto/Standby
Electrical Manual Override Manual pushbutton positioning (must engage Manual Mode with Auto/
Manual/Standby Switch).
Communications DNGP Dashboard PC Interface, Modbus® communication protocol
Solenoid Bypass Can be ON or OFF within 1.5% of the end stroke (in full closed and open
position).
Loss of Signal Options
(Selectable)
Drive to 4 mA position (open or closed valve position) Drive to 20 mA
position (open or closed valve position) or Lock in last controlled position.

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Table 1 - DNGP Technical Specications (Continued)
Item Denition
Position Input Signal Impedance 120 to 220 Ω
Input Signal Action Direct or Reverse Acting (selectable by accessing DNGP Menu and
Transmitter Switch)
Pneumatic Action Double-acting or single-acting
Deadband Adjustable from 0.1% to 2.0% of full travel
Hysteresis <2.0% full scale (with rotary position feedback transmitter
Linearity <±1.0% full scale (with standard linear digital transmitter)
Repeatability <±1.0% full scale (with standard linear digital transmitter)
Operating Temperature -20 ºF to 150 ºF (-29 ºC to 66 ºC)
Inuence of Temperature on Valve
Position
<0.01% per ºF (<0.02% per ºC)
Steady State Gas Consumption ZERO
Recommended Supply Regulator
Capacity
100 SCFM at 250 PSIG (1724 kPa) - Natural Gas
45 SCFM at 100 PSIG (689 kPa) - Natural Gas
30 SCFM at 60 PSIG (414 kPa) - Natural Gas
Electrical Classications Electrical Enclosure Explosion Proof for Class I Groups C and D; Class
II Groups E, F, G; Class III hazardous locations, RoHS compliant.
Enclosure Available in explosion proof housing with window or Polycarbonate enclo-
sure for remote control board mounting.
Approximate Weight 15 lb. (5.6 kg); includes standard explosion proof DNGP enclosure and High
Pressure 5/3 Solenoid Valve.
Valve Position Limit Switches Low limit settable from 0 to 45% closed
High limit settable from 55 to 100% of open
Contacts ratings (determined by type selection).
Digital Control Inputs 12 to 24 V nominal (11 to 30 V).
Digital input current: 3.5 mA at 24 V
One input controls Open, one input controls Close, and common
Open/Close return signal.
Maximum Power Supply Gas
Pressure
250 PSIG (1724 kPa) with 5/3 type DNGP Solenoid Valve
(Check Maximum Actuator Power Supply Pressure Limitations)
150 PSIG (1034 kPa) with 3/2 type DNGP Solenoid Valve
(Check Maximum Actuator Power Supply Pressure Limitations)
Pneumatic Port Connection 1/4” FNPT standard, larger sizes available for additional capacity
Electrical Conduit Connection 3/4” FNPT standard

Becker Digital Natural Gas Positioner Instruction Manual | 17© 2022 Baker Hughes Company. All rights reserved.
Westlock
Table 2 - Rotary Transmitter Technical Specications
Ballu󰀨
Table 3 - Programmable Linear Position Transmitter Specications (Supplied 2006 and later)
Item Denition
Heater Power 12 - 24 VDC
Recommended Power Loop power 4-20 mA
Output Signal Range 4 to 20 mA DC
Load Impedance 0-950 Ohms at 24 VDC
Output Current Limit Internally limited to 33 mA
Rotation Range 45º - 95º
Linearity ±1.0%
Hysteresis 1% of full scale
Repeatability ±0.3% of full scale
Measured Parameter Specication Analog Output
Repeatability
(Resolution + Hysteresis)
Current-Output Versions 0.5% Full Scale
Sampling Rate For stroke lengths ≤ 600 mm 2 KHz BTL5
4 KHz BTL7 ≤250mm Length
2 KHz BTL7 251 to 600 mm length
Non-linearity For stroke lengths ≤ 500 mm BTL5 ± 100 μm
BTL7 ±50 μm
Operating Temperature -40°C to +80°C
Supply Voltage +24 VDC ± 20%
Humidity <90% non-condensing

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Table 4 - DNGP Spare Parts List
Component Part Number
DNGP Positioner without Solenoid (complete, aluminum cover) 31-0511
DNGP-REM Positioner without Solenoid (complete, polycarbonate cover) 31-7029
3 Amp. DNGP fuse 31-9002
DNGP Control Board 31-0016
DNGP Display Board 31-0014
DNGP Terminal Block – 14 pin 31-0017
DNGP Terminal Block – 10 pin 31-0018
EFP to DNGP Conversion Kit (includes 31-0016 control board) 31-0019
DNGP Remote Poly-Carbonate Enclosure 31-7028
Ballu󰀨 BTL5 4" stroke position transmitter (Legacy) 01-8975
Ballu󰀨 BTL5 6" stroke position transmitter (Legacy) 01-8976
Ballu󰀨 BTL5 8" stroke position transmitter (Legacy) 01-8977
Ballu󰀨 BTL5 12" stroke position transmitter (Legacy) 01-8978
Ballu󰀨 BTL7 4" stroke position transmitter (Legacy) 01-9993
Ballu󰀨 BTL7 6" stroke position transmitter (Legacy) 01-9994
Ballu󰀨 BTL7 8" stroke position transmitter (Legacy) 01-9995
Ballu󰀨 BTL7 12" stroke position transmitter (Legacy) 01-9996
Ballu󰀨 BTL5 6/8" stroke position transmitter (Refresh) 01-9980
Ballu󰀨 BTL5 10/12" stroke position transmitter (Refresh) 01-9981
Ballu󰀨 BTL7 6/8" stroke position transmitter (Refresh) 01-9991
Ballu󰀨 BTL7 10/12" stroke position transmitter (Refresh) 01-9992
Ballu󰀨 BTL5 4" stroke replacement electronic module (Legacy) 01-8980
Ballu󰀨 BTL5 6" stroke replacement electronic module (Legacy) 01-8981
Ballu󰀨 BTL5 8" stroke replacement electronic module (Legacy) 01-8982
Ballu󰀨 BTL5 12" stroke replacement electronic module (Legacy) 01-8983
Ballu󰀨 BTL7 4" stroke replacement electronic module (Legacy) 01-9993
Ballu󰀨 BTL7 6" stroke replacement electronic module (Legacy) 01-9994
Ballu󰀨 BTL7 8" stroke replacement electronic module (Legacy) 01-9995
Ballu󰀨 BTL7 12" stroke replacement electronic module (Legacy) 01-9996
Ballu󰀨 BTL5 6/8" stroke replacement electronic module (Refresh) 01-9980-R
Ballu󰀨 BTL5 10/12" stroke replacement electronic module (Refresh) 01-9981-R
Ballu󰀨 BTL5/BTL7 Calibration Tool 01-8902
Ballu󰀨 6/8 STK BTL7 replacement electronic module (Refresh) 01-9991-R
Ballu󰀨 10/12 STK BTL7 replacement electronic module (Refresh) 01-9992-R
ASCO Solenoid Valve, Brass, 24VDC, 2-way, <60 psig, Model No. EF8262H202 20-4202
ASCO Solenoid Valve, Brass, 24VDC, 3-way, <150 psig, Model No. EV8327G041 20-4221
ASCO Solenoid Valve, Stainless Steel, 24VDC, 2-way, <60 psig, Model No. EF8314G301 20-4219
ASCO Solenoid Valve, Stainless Steel, 24VDC, 3-way, <150 psig, Model No. EV8327G042 20-4203
ASCO Solenoid Valve, Brass, 12VDC, 2-way, <60 psig, Model No. EF8262G202 20-4215

Becker Digital Natural Gas Positioner Instruction Manual | 19© 2022 Baker Hughes Company. All rights reserved.
Description of Safe Markings for DNGP Complete Unit
Summary of Agency Markings
For Model DNGP-REM used in Ordinary Locations only
Conforms to UL STD 61010-1
Certified to CSA STD C22.2 No. 61010-1
For Model DNGP used in Hazardous Locations
Class I; Div. 1 Groups C and D T3C
Type 4X IP65
Table 4 - DNGP Spare Parts List Continued
Certications and Approvals
Note: See Serial Plates on Component for Additional Certication of individual part.
Table 5 - Certications and Approvals
ASCO Solenoid Valve, Brass, 12VDC, 3-way, <150 psig, Model No. EV8327G041 20-4223
Versa VXX-4323-C408-H-NGST-D024 Solenoid Valve, Brass, 24 VDC, 4-way, spring-centered,
1/4" NPT, in-pilot, dual coil
20-3900-B
Versa VXX-4323-H-M5R-NGST-16B-PC-XX-D024 Solenoid Valve, Brass, 24 VDC, 4-way,
spring-centered, 1/4" NPT, in-pilot, dual coil with manual override
20-3901
Versa VXX-4323-H-NGST-16B-PC-XX-D012 Solenoid Valve, Brass, 12 VDC, 4-way, spring-cen-
tered, 1/4" NPT, in-pilot, dual coil
20-3902
Versa VXX-4323-H-M5R-NGST-16B-PC-XX-D012 Solenoid Valve, Brass, 12 VDC, 4-way,
spring-centered, 1/4" NPT, in-pilot, dual coil with manual override
20-3903
Versa VXX-4323-316-C408-H2-NGST-D024 Solenoid Valve, Stainless Steel, 24 VDC, 4-way,
spring-centered, 1/4" NPT, in-pilot, dual coil
20-3904-B
Versa VXX-4323-316-H2-NGST-PC-XX-16BE-D012 Solenoid Valve, Stainless Steel, 12 VDC,
4-way, spring-centered, 1/4" NPT, in-pilot, dual coil
20-3905
Part/Component Certication
DNGP Logic Board RoHS Compliant
Linear Position Transmitter Class I, Division 1, Groups A, B, C, and D Class II/III, Groups E, F, and G
Enclosure Type 4X/6P
Rotary Position Transmitter Class I, Group C and D Class II, Groups E, F and G
High Pressure 5/3 Solenoid Class I, Group C and D Class II, Groups E, F and G
NEMA 7 and 9
2/2 and 3/2 Solenoid Class I, Group C and D Class II, Groups E, F and G
Types 4, 4X, 6, and 6P

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Version Release Date Feature
3.02.00 Feb 6 2012 Last version
3.01.00 Aug 28 2011 Modbus protocol added
2.02.00 Nov 7 2008 Fault Alarm is disabled at 4 and 20 mA
2.01.00 Jul 14 2008 Pulse control mode added to menu
2.00.P6 Feb 18 2008 Enable Pulse Mode (not added to
2.00.05 May 12 2005 Initial rmware release
Software Release Information
Table 6 - Software Release Information